Plug-in Type
Digital Indicating Turbidity/SS Meter

WIL-101-TU
Instruction ManualPreface
Thank you for purchasing our WIL-101-TU, Plug-in Type Digital Indicating Turbidity/SS (Suspended Solids)
Meter.
This manual contains instructions for the mounting, functions, operations and notes when operating theWIL-101-TU. To ensure safe and correct use, thoroughly read and understand this manual before using this
instrument.
To prevent accidents arising from the misuse of this instrument, please ensure the operator receives thismanual.

Characters Used in This Manual
Indication
Number,

/

-1

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Indication
Alphabet
Indication
Alphabet

Caution• This instrument should be used in accordance with the specifications described in the manual.
If it is not used according to the specifications, it may malfunction or cause a fire.
• Be sure to follow all of the warnings, cautions and notices. If they are not observed, serious injury or
malfunction may occur.
• The contents of this instruction manual are subject to change without notice.
• Care has been taken to ensure that the contents of this instruction manual are correct, but if there are any
doubts, mistakes or questions, please inform our sales department.
• This instrument is designed to be installed on a DIN rail within a control panel. If it is not, measures must be
taken to ensure that the operator cannot touch power terminals or other high voltage sections.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damage or secondary damage(s) incurred as a result ofusing this product, including any indirect damage.

Safety Precautions (Be sure to read these precautions before using our products.)
The safety precautions are classified into 2 categories: “Warning” and “Caution”.
Depending on the circumstances, procedures indicated by
Caution may result in serious
consequences, so be sure to follow the directions for usage.

Warning

Procedures which may lead to dangerous conditions and cause death or serious
injury, if not carried out properly.

CautionProcedures which may lead to dangerous conditions and cause superficial tomedium injury or physical damage or may degrade or damage the product, if not
carried out properly.

2Warning• To prevent an electrical shock or fire, only Shinko or other qualified service personnel may handle theinner assembly.
• To prevent an electrical shock, fire or damage to the instrument, parts replacement may only beundertaken by Shinko or other qualified service personnel.

SAFETY PRECAUTIONS• To ensure safe and correct use, thoroughly read and understand this manual before using this
instrument.
• This instrument is intended to be used for measuring equipment. Verify correct usage after
purpose-of-use consultation with our agency or main office. (Never use this instrument for medical
purposes with which human lives are involved.)• External protection devices such as protective equipment against excessive temperature rise, etc.
must be installed, as malfunction of this product could result in serious damage to the system or
injury to personnel. Proper periodic maintenance is also required.
• This instrument must be used under the conditions and environment described in this manual.
Shinko Technos Co., Ltd. does not accept liability for any injury, loss of life or damage occurring due
to the instrument being used under conditions not otherwise stated in this manual.

Caution with Respect to Export Trade Control Ordinance
To avoid this instrument from being used as a component in, or as being utilized in the manufactureof weapons of mass destruction (i.e. military applications, military equipment, etc.), please investigate
the end users and the final use of this instrument. In the case of resale, ensure that this instrument is
not illegally exported.

PRECAUTIONS
1. Installation Precautions

CautionThis instrument is intended to be used under the following environmental conditions (IEC61010-1):• Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 ) that does notchange rapidly, and no icing• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which large current is flowing.
• No water, oil, chemicals or the vapors of these substances can come into direct contact withthe unit.
• If the WIL-101-TU is installed within a control panel, the ambient temperature of the unit – not theambient temperature of the control panel – must be kept under 50 . Otherwise the life of electronicparts (especially electrolytic capacitors) of the unit will be shortened.
Note: Do not install this instrument on or near flammable material even though the case of this
instrument is made of flame-resistant resin.

32. Wiring Precautions

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or a malfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits when wiring theWIL-101-TU.
• Tighten the terminal screw using the specified torque. If excessive force is applied to the screw
when tightening, the terminal screw may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• Do not apply a commercial power source to the Turbidity/SS Sensor which is connected to the
input terminal nor allow the power source to come into contact with the sensor.
• Use the Turbidity/SS Sensor made by OPTEX Co., Ltd.
• Keep the input wires and power lines separate.

3. Operation and Maintenance Precautions

Caution• Do not touch live terminals. This may cause an electrical shock or problems in operation.
• Turn the power supply to the instrument OFF when retightening the terminal or cleaning.
Working on or touching the terminal with the power switched ON may result in severe injury or death
due to electrical shock.
• Use a soft, dry cloth when cleaning the instrument.
(Alcohol based substances may tarnish or deface the unit.)• As the display section is vulnerable, be careful not to put pressure on, scratch or strike it with a hard
object.

4

Contents
Page
1. Model ................................................................................................................................................................ 7
1.1 Model ........................................................................................................................................................ 7
1.2 How to Read the Model Label .................................................................................................................. 7
2. Names and Functions of Instrument ................................................................................................................ 8
3. Mounting to the Control Panel......................................................................................................................... 9
3.1 Site Selection ........................................................................................................................................... 9
3.2 External Dimensions (Scale: mm) ........................................................................................................... 9
3.3 Mounting ................................................................................................................................................... 9
4. Removal ..........................................................................................................................................................11
5. Wiring ............................................................................................................................................................. 12
5.1 Lead Wire Solderless Terminal ............................................................................................................... 12
5.2 Terminal Arrangement ............................................................................................................................ 13
5.3 Wire the Communication Line ................................................................................................................ 14
6. Outline of Key Operation and Setting Groups ............................................................................................... 15
6.1 Outline of Key Operation ........................................................................................................................ 15
6.2 Setting Groups ........................................................................................................................................ 15
7. Key Operation Flowchart................................................................................................................................ 16
8. Setup .............................................................................................................................................................. 18
8.1 Turn the Power Supply to the WIL-101-TU ON ..................................................................................... 18
8.2 Turbidity/SS Input Function Group ......................................................................................................... 18
8.3 Output Function Group ........................................................................................................................... 21
8.4 Basic Function Group ............................................................................................................................. 28
9. Calibration ...................................................................................................................................................... 32
9.1 Turbidity/SS Sensor Calibration Mode ................................................................................................... 32
9.1.1 Turbidity/SS Sensor Calibration ................................................................................................... 32
9.1.2 Errors when Calibrating Turbidity/SS Sensor .............................................................................. 33
9.2 Zero and Span Output Signal Adjustment Modes .................................................................................. 33
9.2.1 Adjusting Zero and Span Output Signals ..................................................................................... 33
9.2.2 Errors when Adjusting Zero and Span Output Signals ................................................................ 34
9.3 Transmission Output Adjustment Mode.................................................................................................. 35
10. Measurement ............................................................................................................................................... 36
10.1 Starting Measurement .......................................................................................................................... 36
Output ......................................................................................................................................... 36
10.2 A
10.3 Errors during Measurement .................................................................................................................. 37
11. Communication............................................................................................................................................. 38
11.1 System Configuration Example ............................................................................................................ 38
11.2 Setting Method of This Instrument ........................................................................................................ 38
11.3 Communication Procedure ................................................................................................................... 39
11.4 Shinko Protocol ..................................................................................................................................... 40
11.4.1 Transmission Mode .................................................................................................................... 40
11.4.2 Command Configuration ............................................................................................................ 40
11.4.3 Checksum Calculation................................................................................................................ 41
11.5 MODBUS Protocol ................................................................................................................................ 42
11.5.1 Transmission Mode .................................................................................................................... 42
11.5.2 Data Communication Interval ..................................................................................................... 42
11.5.3 Message Configuration .............................................................................................................. 42
11.5.4 Message Example ...................................................................................................................... 44
11.6 Communication Command Table.......................................................................................................... 46
11.6.1 Notes about Setting/Reading Command ................................................................................... 46
11.6.2 Setting/Reading Command ........................................................................................................ 47
11.6.3 Read Only Command ................................................................................................................. 50
5

11.7 Calibration and Transmission Output Adjustment via Communication Command............................... 52
11.7.1 Turbidity/SS Sensor Calibration Mode ....................................................................................... 52
11.7.2 Zero and Span Output Signal Adjustment Modes ..................................................................... 53
11.7.3 Transmission Output Adjustment Mode ..................................................................................... 54
11.8 Notes on Programming Monitoring Software........................................................................................ 55
11.8.1 How to Speed up the Scan Time ............................................................................................... 55
11.8.2 How to Read the Set Value Changes Made by Front Keypad Operation ................................. 55
11.8.3 Note when Sending All Set Values at One Time ....................................................................... 55
12. Specifications ............................................................................................................................................... 56
12.1 Standard Specifications ........................................................................................................................ 56
12.2 Optional Specifications ......................................................................................................................... 60
13. Troubleshooting ............................................................................................................................................ 62
13.1 Error Codes........................................................................................................................................... 62
13.2 Solutions to Problems ........................................................................................................................... 62
13.2.1 Indication .................................................................................................................................... 62
13.2.2 Key Operation............................................................................................................................. 64
13.2.3 Communication........................................................................................................................... 64
14. Character Tables .......................................................................................................................................... 65

61. Model
1.1 Model
WIL-101

Input points

1

Input

-TU

,
1 point
Turbidity Sensor (made by OPTEX):
TC-100, TC-500, TC-3000
SS (Suspended Solids) Sensor (made by OPTEX):

TU

TCS-1000(E), TS-MxS-A
Power supply voltage
Option

100 to 240 V AC (standard)
1

24 V AC/DC (*)
output (A11, A12, A21, A22)

EVT

A

TA

Transmission output(*) Power supply voltage 100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter “1” in Power supply voltage, after ‘TU’.

1.2 How to Read the Model Label
The model label is attached to the left side of the case.
Model, Option
Development No.
Input
Power supply voltage, Power consumption
Serial number
Manufacturer
Factory ID
RoHS directive compliant(Fig. 1.2-1)

7

2. Names and Functions of Instrument
PWR indicator
Unit label (CH1)

Turbidity/SS Display (CH1)

Unit label (CH2)
Setting Display (CH2)
T/R indicator

A1 indicator

MODE key

UP keyDOWN key

SET/RESET key
Light Sensor(Fig. 2-1)

Displays
Turbidity/SS Display(CH1)
Setting Display (CH2)

Unit Label
Unit label (CH1)
Unit label (CH2)

Action Indicators
PWR indicator
A1 indicator
T/R indicator

In Turbidity/SS Display Mode, Turbidity/SS input value is indicated in red.
In Setting mode, characters are indicated in red.
In Turbidity/SS Display Mode, items selected in [Display selection (p.30)] areindicated in red.
In Setting mode, set values (or selected items) are indicated in red.

Attach the user’s unit of Turbidity/SS Display (CH1) from the included unit
labels if necessary.
Attach the user’s unit of Setting Display (CH2) from the included unit labels
if necessary.

When power supply to the instrument is turned ON, the yellow LED lights up.
When A1 output (Contact output 1) is ON, the red LED lights up.
The yellow LED lights up during Serial communication TX output (transmitting).

Keys
UP keyDOWN key
MODE key
SET/RESET key
Light Sensor

Increases the numeric value, or progresses through the selection items.
Decreases the numeric value, or progresses back through the selection items.
Selects a setting group.
Switches the setting modes, and registers the set value (or selected item).
Automatically measures and controls brightness of the Turbidity/SS Display(CH1), Setting Display (CH2) and Action indicators.

NoticeWhen setting the specifications and functions of this instrument, connect mains power cable to terminals
13 and 14 first, then set them referring from “6. Outline of Key Operation and Setting Groups” to “8.
Setup (pages 15 to 31)” before “3. Mounting to the Control Panel (p.9)” and “5. Wiring (p.12)”.

8

3. Mounting to the Control Panel
3.1 Site Selection

CautionUse within the following temperature and humidity ranges.
Temperature: 0 to 50 (32 to 122 ) (No icing), Humidity: 35 to 85 %RH (Non-condensing)If the WIL-101-TU is installed within a control panel, the ambient temperature of the unit – not theambient temperature of the control panel – must be kept under 50 . Otherwise the life ofelectronic parts (especially electrolytic capacitors) of the unit will be shortened.
This instrument is intended to be used under the following environmental conditions(IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 ) that does notchange rapidly• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which large current is flowing• No water, oil, chemicals or the vapors of these substances can come into direct contact withthe unit.
3.2 External Dimensions (Scale: mm)
Socket (sold separately)

3

85

DIN rail

30

(29)

79

3.3

108
(Fig. 3.2-1)

3.3 Mounting(1) Hook the upper part of the socket on the DIN rail, and mount it (A clicking sound is heard).
Hook the upper part of thesocket on the DIN rail.

(Fig. 3.3-1)
9

Caution
Before inserting the WIL-101-TU into the socket, wire the unit while referring to Section “5. Wiring”(p.12).
(2) Check that the Lock Release has been lowered.

Lock Release(Fig. 3.3-2)(3) Insert the WIL-101-TU into the socket.

When inserting, be careful about
the position of pins and slots.
(Fig. 3.3-3)(4) Fix the WIL-101-TU and the socket by pushing the Lock Release up.

Check that the WIL-101-TU and the socket
are locked by pushing the Lock Release up.

Lock Release(Fig. 3.3-4)
10

4. Removal(1) Turn the power supply to the unit OFF.
(2) Pull the Lock Release down, and release the WIL-101-TU from the socket.
Check that the WIL-101-TU andthe socket are unlocked by pulling
the Lock Release down.

Lock Release(Fig. 4-1)
(3) Separate the WIL-101-TU from the socket.

(Fig. 4-2)(4) Remove the socket from the DIN rail by pulling the socket Lock Release (at the bottomof the socket) down.

Lock Release(Fig. 4-3)
11

5. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result in severe injury
or death due to electrical shock.

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or a malfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits when wiring the unit.
• Tighten the terminal screw using the specified torque. If excessive force is applied to the screw
when tightening, the terminal screw may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• Do not apply a commercial power source to the Turbidity/SS Sensor which is connected to the input
terminal nor allow the power source to come into contact with the sensor.
• Use the Turbidity/SS Sensor made by OPTEX Co., Ltd.
• Keep the input wires and power lines separate.
5.1 Lead Wire Solderless Terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as follows.
For the sockets with finger-safe & screw fall prevention functions, the ring terminals areunusable.
The tightening torque should be 0.63 N•m.

5.9 mm max.
3.2 mmminimum

Ring-type

4 mm max.

Manufacturer

Model

Nichifu Terminal Industries CO., LTD.
Nichifu Terminal Industries CO., LTD.
Japan Solderless Terminal MFG CO., LTD.

TMEV1.25Y-3S
TMEV1.25-3
V1.25-3

4.8 mmminimum

5.9 mm max.

Solderless
Terminal
Y-type4 mm max.

(Fig. 5.1-1)

12

4.8 mmminimum

5.2 Terminal Arrangement
1

WHT (White): Analog signal (+) input terminalof Turbidity/SS Sensor
2 BLK (Black): Analog signal (–) input terminalof Turbidity/SS Sensor
3 RED (Red): Calibration signal output terminalof Turbidity/SS Sensor
4 BRW (Brown): Power (+) terminal of
Turbidity/SS Sensor
5 GRN (Green): Self-check input terminal of
Turbidity/SS Sensor
6 BLU (Blue): Power (–) terminal of Turbidity/SS
sensor
7 POWER FOR SENSOR +: External power (+)
terminal
8 POWER FOR SENSOR –: External power (–)
terminal
When the EVT option is ordered:
9 - 10 OUT: A1 output (Contact output 1)
terminals
When the TA option is ordered:
9 - 10 TRANSMIT OUTPUT: Transmission output
terminals
11 NOT: Connection impossible
12 NOT: Connection impossible
13 - 14 POWER SUPPLY: Power terminals
RS-485: Serial Communication modular jack

Modular Jack Pin (WIL-101-TU side arrangement)(Fig. 5.2-1)

Wiring example of WIL-101-TU, TA
100 to 240 V AC

Power Supply(OMRON products
recommended.)

8L

N

S8VS-01512 (12V DC):For Turbidity sensors:
TC-100, TC-500, TC-3000
For SS Sensor:
TCS-1000(E)S8VS-01524 (24V DC):For SS Sensor:
TS-MxS-A

7 6

5(Blue) (Green)(Black)(White)

4

3 2

1

(Brown) (Red)

14

–V +V

Turbidity/SS Sensor(Fig. 5.2-2)

13

13

– +
12 11 10 9

Input
Power
terminals
terminals+ –WIL-101-TU, TA

Recorders, etc.

5.3 Wire the Communication Line
Connect to the modular jack at the bottom of the instrument, using CDD (sold separately) or CPP (soldseparately).
• Wiring Example Using the USB Communication Cable CMC-001-3 (sold separately)
WIL-101-TU (Max 31 units)

CMC-001-3(sold separately)

Host Computer
USB Port

CDD (sold separately) or CPP (sold separately)

Bottom of WIL-101-TU(Fig. 5.3-1)• Wiring Example Using the Communication Converter IF-400 (sold separately)
IF-400 (sold separately)
WIL-101-TU (Max 31 units)
ShieldWire

FG

Host Computer
D-sub 9-pin Connector

CDD (sold separately) or CPP (sold separately)
Bottom of IF-400, WIL-101-TU(Fig. 5.3-2)
Shield Wire
Be sure to ground only one end of the shield wire so that current cannot flow to the shield wire.
If both ends of the shield wire are grounded, the circuit will be closed, resulting in a ground loop.
This may cause noise. Be sure to ground the FG.
Recommended cable: OTSC-VB 2PX0.5SQ (made by Onamba Co., Ltd.) or equivalent(Use a twisted pair cable.)
Terminator (Terminal Resistor)
The terminator is mounted at the end of the wire when connecting multiple peripheral devices
to a personal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator to the communication line because each WIL-101-TU has built-in
pull-up and pull-down resistors.
Communication converter IF-400 (sold separately) has a built-in terminal resistor.
14

6. Outline of Key Operation and Setting Groups
6.1 Outline of Key Operation
Setting items are divided into groups, and group selection has to be made with keypads.
Press thekey in Turbidity/SS Display Mode. The unit enters Group Selection Mode.
Select a group with thekey, and press the
key. The unit enters each setting item.
To set each setting item, use theorkey, and register the set value with thekey.
6.2 Setting Groups
Abbreviations:Turb.: Turbidity,
SS: Suspended solids
Calib.: Calibration

POWER ON+
Turbidity/SS Display
Mode (*1)+(3 sec) (*2)
Zero Output Signal
Adjustment Mode
(3 sec) (*2)

Span Output Signal
Adjustment Mode

Turb./SS Sensor Calib. Mode+

(3 sec) (*3)
Transmission output
Zero adjustment mode

Transmission output
Span adjustment mode

Group Selection Mode
Turbidity/SS Input
Function GroupSee pages 18 to 31 for details of each setting item.
Measurement range
Span setting

Output FunctionGroup

A11 type

A22 hysteresis

Basic FunctionGroup

Set value lock

Output OFF time
when A1 output ON(*1) In Turbidity/SS Display Mode, measurement starts, indicating Turbidity/SS input value on the Turbidity/SS Display(CH1), and item selected in [Display selection (p.30)] on the Setting Display (CH2).
(Lock 1)㸪(Lock 2) or(Lock 3) is selected in [Set value lock (p.28)] of Basic Function(*2) If
Group, the unit cannot move to Zero Output Signal Adjustment Mode, Span Output Signal Adjustment Mode or
Turbidity/SS Sensor Calibration Mode.
(*3) During Zero Output Signal Adjustment Mode, Span Output Signal Adjustment Mode or Turbidity/SS Sensor
Calibration Mode, the unit cannot move to Transmission output Zero adjustment Mode.

: Available only when the TA option is ordered.
About Key Operation•+(3 sec): Press and hold the
key andkey (in that order) together for 3 seconds.
The unit will proceed to Zero Output Singal Adjustment Mode.
•+(3 sec): Press and hold the
key andkey (in that order) together for 3 seconds.
The unit will proceed to Turbidity/SS Sensor Calibration Mode.
+(3 sec): Press and hold the
key andkey (in that order) together for 3 seconds.
•
The unit will proceed to Transmission output Zero Adjustment Mode.
,: Press theorkey. The unit will proceed to the next setting item, illustrated•
by an arrow.
•or: Press theor

key until the desired setting mode appears.

• To revert to Turbidity/SS Display Mode, press and hold15

for approx. 3 seconds while in any mode.

7. Key Operation Flowchart
POWER ON
[Input value] Turbidity/SS Display Mode
[Set value]+(3 sec) (*1)

Measurement starts, indicating Turbidity/SS input value on the Turbidity/SS Display (CH1), and the item
selected in [Display selection (p.30)] of Basic Function Group on the Setting Display (CH2).

[Input value] Zero Output Signal

Adjustment Mode

[Input value] Span Output Signal+(3 sec) (*1)

Turbidity/SS Sensor(P.31)
Calibration Mode+

(3 sec) (*2)

Transmission Output Zero
Adjustment Mode (P.34)

Turbidity/SS Input
Function Group

Adjustment Mode

(P.32)(P.33)

Transmission Output Span
Adjustment Mode (P.34)

Output Function Group1
2
3

Measurement range

A11 type

A21 hysteresis type

(P.18)(P.21)

Turbidity/SS inputs formoving average(P.18)

A12 typeA
output when input
errors occur(P.19)

A21 type

Turbidity/SS input filter
time constant(P.19)

A22 type

Turbidity/SS input sensor
correction(P.19)

A11 value

Calibration wait time

A12 value

A21 ON side
(P.22)A21 OFF side
(P.24)
A22 hysteresis type(P.22)(P.24)A22 ON side

(P.22)(P.25)A22 OFF side

(P.22)
A21 value(P.19)(P.25)A11 ON delay time

(P.23)
A22 value

Span setting(P.24)(P.22)(P.19)
Measurement unit

(P.24)(P.25)A12 ON delay time

(P.23)(P.19)
A11 hysteresis type(P.25)A21 ON delay time

(P.23)A11 ON side

(P.25)A22 ON delay time

(P.23)A11 OFF side

(P.25)A11 OFF delay time

(P.23)
A12 hysteresis type(P.25)A12 OFF delay time

(P.23)A12 ON side

(P.26)A21 OFF delay time

(P.24)A12 OFF side

(P.26)A22 OFF delay time

(P.24)(P.26)
416

About Setting Items
Measurement range(P.18)
Transmission output
high limit(P.29)• Upper left: Turbidity/SS Display (CH1): Indicates the setting item characters.
• Lower left: Setting Display (CH2): Indicates the factory default.
• Right side: Indicates the setting item and reference page.
Setting items in shaded section will be displayed only when the corresponding option is ordered.

(*1) If(Lock 1),
( Lock 2) or(Lock 3) is selected in [Set value lock (p.28)] in the Basic Function Group, the unit cannot move to
Zero Output Signal Adjustment Mode, Span Output Signal Adjustment Mode or Turbidity/SS Sensor Calibration Mode.
(*2) The unit cannot move to Transmission output mode while in Zero Output Signal Adjustment Mode, Span Output Signal Adjustment Mode or Turbidity/SS
Sensor Calibration Mode.

About Key Operation•+(3 sec): Press and hold the,keys (in that order) together for 3 seconds, the unit will move to the next setting item.
•+(3 sec): Press and hold the,keys (in that order) together for 3 seconds, the unit will move to the next setting item.
•+(3 sec): Press and hold the,keys (in that order) together for 3 seconds, the unit will move to the next setting item.
or: Press theorkey.The unit will proceed to the next setting item, illustrated by an arrow.
•• If thekey is held down for approx. 3 seconds at any setting item, the unit will revert to Turbidity/SS Display Mode.
Basic Function Group1
2
3

A11 H/L limits independent
lower side value(P.26)

Set value lockA12 H/L limits independent
lower side value(P.26)

Communication protocol(P.28)

A1 output allocation

A21 H/L limits independent
lower side value(P.26)

Instrument number(P.28)

Output ON time whenA1 output ON(P.31)A22 H/L limits independent
lower side value(P.26)

Communication speed(P.28)

Output OFF time whenA1 output ON(P.31)A11 H/L limits independent
upper side value(P.27)

Data bit/Parity

A12 H/L limits independent
upper side value(P.27)

Stop bit

A21 H/L limits independent
upper side value(P.27)

Transmission output highlimit
(P.29)A22 H/L limits independent
upper side value(P.27)

Transmission output low
limit(P.29)

A11 hysteresis(P.27)

Transmission output statuswhen calibrating(P.29)(P.27)

Transmission output value
HOLD when calibrating (P.29)

A12 hysteresis

Indication time
(P.28)(P.28)(P.28)(P.27)

Transmission output statuswhen adjusting output signal(P.29)(P.27)

Transmission output value HOLD
when adjusting output signal(P.29)

A21 hysteresis

A22 hysteresis

Auto-light function(P.29)

Abbreviation: H/L: High/Low

Display selection(P.30)
4

17(P.30)(P.30)

8. Setup
Setup should be done before using this instrument according to the user’s conditions:
Setting the Turbidity/SS input functions (Measurement range, Turbidity/SS inputs for moving average),
Output functions (A11, A12, A21, A22 types), Basic functions (Set value lock, Communication settings) etc.
Setup can be conducted in the groups below:
Turbidity/SS Input Function Group, Output Function Group, Basic Function GroupIf the user’s specification is the same as the factory default value of the WIL-101-TU, or if setup has
already been completed, it is not necessary to set up the instrument. Proceed to “9. Calibration (p.32)”.
8.1 Turn the Power Supply to the WIL-101-TU ON
For approx. 4 seconds after the power is switched ON, an input type is indicated on the
Turbidity/SS Display (CH1) (Table 8.1-1). During this time, all outputs are in OFF status, and LED
indicators – except the Setting Display (CH2) and PWR Indicator – turn off.
Measurement starts, indicating Turbidity/SS input value on the Turbidity/SS Display (CH1), and theitem selected in [Display selection (p.30)] on the Setting Display (CH2). This status is called
Turbidity/SS Display Mode.
(Table 8.1-1)
Measurement Range
0.0 to 100.0 (Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin)

Turbidity/SS Display (CH1)

8.2 Turbidity/SS Input Function GroupTo enter the Turbidity/SS Input Function Group, follow the procedure below.
1
Press thekey in Turbidity/SS Display Mode.
2
Press thekey.
The unit will enter the Turbidity/SS Input Function Group, and ’Measurement range’ will appear.
Character

Setting Item, Function, Setting Range
Factory Default
Measurement range
0.0 to 100.0 (Formazin)• Selects the measurement range corresponding to the Turbidity or SS Sensor model.
[Note] If the measurement range is changed, A11, A12, A21, A22 types in Output
Function Group will revert to ‘No action’. Therefore, set them again.
•
Selection
Measurement Range
Model
0.0 to 100.0(Formazin)
Turbidity Sensor TC-100
0 to 500(Formazin)
Turbidity Sensor TC-500
0 to 3000(Formazin)
Turbidity Sensor TC-3000
0 to 1000 mg/L (Kaolin)
SS Sensor TCS-1000(E)0 to 50000 mg/L (Kaolin) (*)
SS Sensor TS-MxS-A(*) The measurement range of the SS Sensor TS-MxS-A is 0 to 50000 mg/L (Kaolin).
As the Turbidity/SS Display (CH1) has 4 digits, the value 10000 mg/L or higher cannot be
indicated.
Therefore, the ones digit of current Turbidity/SS input value is rounded off, divided by 10, and thenindicated.

(e.g.) 25004 mg/L (Kaolin): Indicated as 2500.
25005 mg/L (Kaolin): Indicated as 2501.

Turbidity/SS inputs for moving average
20• Sets the number of turbidity/SS inputs used to obtain a moving average.
• Setting range: 1 to 120

18Character

Setting Item, Function, Setting Range
Factory Default
output when input errors occur
DisabledA•A
output Enabled/Disabled can be selected when input errors occur, such as
Turbidity/SS Sensor is disconnected or short-circuited.
output and A
output status will be maintained
If “Enabled” is selected, A
when input errors occur.
output and A
output status will be turned OFF
If “Disabled” is selected, A
when input errors occur.
(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
type]
input high limit action) is selected in [A: Enabled•: Disabled
Turbidity/SS input filter time constant
0.0 seconds• Sets the filter time constant for Turbidity/SS input.
output due to the delay of
If the filter time constant is set too large, it affects A
response.
• Setting range: 0.0 to 10.0 seconds
Turbidity/SS input sensor correction
0.0• Sets Turbidity/SS input sensor correction value.
This corrects the input value from the Turbidity/SS Sensor. When a sensor cannot be
set at the exact location where measurement is desired, Turbidity/SS input value
measured by the sensor may deviate from the value in the measured location. In thiscase, desired Turbidity/SS input value can be obtained by adding a sensor correction
value.
However, it is only effective within the measurement range regardless of the sensor
correction value.
Turbidity/SS input value after sensor correction = Current Turbidity/SS input value +(Sensor correction value)• Setting range: 10% of measurement span (*1)
Calibration wait time
1 minute• Sets the waiting time until calibration signal output turns from OFF to ON after theunit has entered Turbidity/SS Sensor Calibration mode.
• Setting range: 0 to 10 minutes
Formazin
Measurement unit (*2)
• Selects the measurement range unit.
[Note] If the measurement unit is changed, A11, A12, A21, A22 types in Output
Function Group will revert to ‘No action’. Therefore, set them again.
[0 to 1000 mg/L (Kaolin)] or[0 to 50000 mg/L
Not available if(Kaolin)] is selected in [Measurement range].
: Formazin•: Kaolin (mg/L)
100.0 (Formazin)
Span setting (*2)
• Sets the Kaolin span for changing from Formazin measurement units to Kaolin
measurement units.
(Kaolin) is selected in [Measurement unit].
Available when
• Setting range: See (Table 8.2-1) (p.20).

(*1) The measurement unit and decimal point place follow the measurement range. If[Kaolin (mg/L)] is selectedin [Measurement unit], the measurement span will be the value set in [Span setting].
(*2) In [Measurement unit] and [Span setting], Formazin Turbidity/SS input value can be changed to the equivalent
Kaolin measurement units.
Refer to the example on p.20.

19

(e.g.) When changing Formazin Turbidity/SS input value to Kaolin value by using the Turbidity Sensor.
Step
1

Description
Take several examples of Turbidity/SS input value and Kaolin value in order to examine thecorrelation between them. This must be done in the desired measurement location.

2

Confirm that both Formazin Turbidity/SS input value and Kaolin value are linearly related, andcalculate Span setting value using the value from each measurement unit closest to the Spansetting value.
The following shows the calculating formula.
Span setting value = Current Span setting value x Kaolin value / Formazin Turbidity/SS input value(e.g.) Current Span setting value (Formazin): 100.0
Turbidity/SS input value (Formazin): 80.0
Kaolin value: 60.0 mg/L
Span setting value = 100.0 x 60.0 / 80.0 = 75.0

3

Select4

For the Span setting, set the value calculated at step 2 (e.g. 75.0).

5Attach the user’s unit of Turbidity/SS Display (CH1) from the included unit labels if necessary.
(See p.8.)(Table 8.2-1)
Measurement Range
0.0 to 100.0 (Formazin)
0 to 500 (Formazin )0 to 3000 (Formazin)[Kaolin (mg/L)] in [Measurement unit].

Measurement unit
Kaolin (mg/L)

Setting Range
0.0 to 900.0 (Formazin)
0 to 9000 (Formazin)
0 to 9000 (Formazin)

20

Factory Default
100.0 (Formazin)
500 (Formazin)
3000 (Formazin)

8.3 Output Function GroupTo enter the Output Function Group, follow the procedure below.
1
Press thekey twice in Turbidity/SS Display Mode.
2
Press thekey.
The unit will enter the Output Function Group, and ’A11 type‘ will appear.
Character

Setting Item, Function, Setting Range
Factory Default
A11 type
No action• Selects an A11 type.
Note: If A11 type is changed, A11 value defaults to 0 (zero).
: No action•: Turbidity/SS input low limit action (Fig. 8.3-1): Turbidity/SS input high limit action (Fig. 8.3-1): Error output [When the error type is “Error” (Table 8.3-1) (p.22), the output isturned ON.]
: Fail output [When the error type is “Fail” (Table 8.3-1) (p.22), the output is turnedON.]: Turbidity/SS input High/Low limits independent action (Fig. 8.3-2)• A11 Action (Activated based on the indication value.)
Turbidity/SS input low limit action
If Medium Value is selected in [A11hysteresis type]:

Turbidity/SS input high limit action
If Medium Value is selected in [A11hysteresis type]:
A11 ON sides

A11 ON sides
ON

ON

OFF

OFF
A11 value
If Reference Value is selected in [A11hysteresis type]:
A11 OFF side (*)
A11 ON side (*)

A11 value
If Reference Value is selected in [A11hysteresis type]:
A11 ON side (*)

A11 OFF side (*)

ON

ON

OFF

OFF
A11 valueA11 value(Fig. 8.3-1)* Setting Example:)] is set to 0.0, A11 output can be turned ON
If [A11 ON side ()].
at the value set in [A11 value (If [A11 OFF side ()] is set to 0.0, A11 output can be turned OFF)].
at the value set in [A11 value (Turbidity/SS input High/Low limits independent action
A11 hysteresis

A11 hysteresis

ONOFF
A11 High/Low limits
independent lower side value

A11 value

A11 High/Low limits
independent upper side value(Fig. 8.3-2)

21

Character

Setting Item, Function, Setting Range
Factory Default• Error output, Fail output(Table 8.3-1)
Error
OccurError Contents
Type
rence
When Self-check output from the Turbidity/SS Sensor is
Failreceived.
Analog signal (+ white, – black) cable of Turbidity/SS
Fail
Sensor is disconnected or short-circuited.
Whenmeasuring
Turbidity/SS input value has exceeded the value
Error
equivalent to 20.5 mA DC.
Turbidity/SS input value has become lower than theErrorvalue equivalent to 3.5 mA DC.
During calibration, the output signal from the Turbidity/SS
Sensor does not become approx. 2 mA DC.
(Before calibration signal output is turned from ON to OFF, if theFailoutput signal from the Turbidity/SS Sensor is within 1 to 3 mA DC,
it is regarded as normal. If the output signal is outside this range, it
is regarded as an error.)

After calibration is complete, the output signal from theTurbidity/SS Sensor does not return to 4 mA DC.
Fail

Error
Error

When
calibrating(Approximately 5 seconds after calibration signal output is turned
from ON to OFF, if the output signal from the Turbidity/SS Sensor
is within 3.5 to 4.5 mA DC, it is regarded as normal. If the output
signal is outside this range, it is regarded as an error.)

During Span output signal adjustment, the Turbidity/SS input
value has exceeded the value equivalent to 20.5 mA DC.
When
During Zero output signal adjustment, the Turbidity/SSadjusting
input value has become lower than the value equivalent
to 3.5 mA DC.

A12 type
No action• Selects an A12 type.
Note: If A12 type is changed, A12 value defaults to 0 (zero).
• For the selection item and action, see A11 type (pp.21, 22).
A21 type
No action• Selects an A21 type.
Note: If A21 type is changed, A21 value defaults to 0 (zero).
• For the selection item and action, see A11 type (pp.21, 22).
A22 type
No action• Selects an A22 type.
Note: If A22 type is changed, A22 value defaults to 0 (zero).
• For the selection item and action, see A11 type (pp.21, 22).
A11 value
0.0 (Formazin)• Selects an A11 value. See (Fig. 8.3-1). (p.21)• Available when
(Turbidity/SS input low limit action),(Turbidity/SS(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A11 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A12 value
0.0 (Formazin)• Selects an A12 value. See (Fig. 8.3-1). (p.21)(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A12 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)(*1) The measurement unit and decimal point place follow the measurement range.
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become(*2) If
the value set in [Span setting].

22

Character

Setting Item, Function, Setting Range
Factory Default
A21 value
0.0 (Formazin)• Selects an A21 value. See (Fig. 8.3-1). (p.21)(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A21 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A22 value
0.0 (Formazin)• Selects an A22 value. See (Fig. 8.3-1). (p.21)(Turbidity/SS input low limit action),(Turbidity/SS• Available when
(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A22 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A11 hysteresis type
Reference Value• Selects A11 output hysteresis type (Medium or Reference Value). (Fig. 8.3-1) (p.21)(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A11 type].
: Medium Value•
Sets the same value for both ON and OFF sides in relation to A11 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation to A11 value.
Both ON and OFF sides need to be set individually.
A11 ON side
1.0 (Formazin)• Sets the span of A11 ON side. See (Fig. 8.3-1). (p.21)
If(Medium Value) is selected in [A11 hysteresis type], the span of ON/OFFside will be the same value.
(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A11 type].
• Setting range: 10% of measurement span (*1)(*3)
A11 OFF side
1.0 (Formazin)• Sets the span of A11 OFF side. See (Fig. 8.3-1). (p.21)(Reference Value) is selected in [A11 hysteresis type].
• Available if
Available when
(Turbidity/SS input low limit action) or(Turbidity/SS
input high limit action) is selected in [A11 type].
• Setting range: 10% of measurement span (*1)(*3)
A12 hysteresis type
Reference Value• Selects A12 output hysteresis type (Medium or Reference Value). (Fig. 8.3-1) (p.21)• Available when
(Turbidity/SS input low limit action) or(Turbidity/SS
input high limit action) is selected in [A12 type].
: Medium Value•
Sets the same value for both ON and OFF sides in relation to A12 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation to A12 value.
Both ON and OFF sides need to be set individually.

(*1) The measurement unit and decimal point place follow the measurement range.
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become(*2) If
the value set in [Span setting].
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value set in(*3) If[Span setting].

23

Character

Setting Item, Function, Setting Range
Factory Default
A12 ON side
1.0 (Formazin)• Sets the span of A12 ON side. See (Fig. 8.3-1). (p.21)(Medium Value) is selected in [A12 hysteresis type], the span of ON/OFF
Ifside will be the same value.
(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A12 type].
• Setting range: 10% of measurement span (*)
A12 OFF side
1.0 (Formazin)• Sets the span of A12 OFF side. See (Fig. 8.3-1). (p.21)• Available if(Reference Value) is selected in [A12 hysteresis type].
(Turbidity/SS input low limit action) or(Turbidity/SS
Available when
input high limit action) is selected in [A12 type].
• Setting range: 10% of measurement span (*)
A21 hysteresis type
Reference Value• Selects A21 output hysteresis type (Medium or Reference Value). (Fig. 8.3-1) (p.21)(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A21 type].
: Medium Value•
Sets the same value for both ON and OFF sides in relation to A21 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation to A21 value.
Both ON and OFF sides need to be set individually.
A21 ON side
1.0 (Formazin)• Sets the span of A21 ON side. See (Fig. 8.3-1). (p.21).
If(Medium Value) is selected in [A21 hysteresis type], the span of ON/OFFside will be the same value.
(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A21 type].
• Setting range: 10% of measurement span (*1)(*3)
A21 OFF side
1.0 (Formazin)• Sets the span of A21 OFF side. See (Fig. 8.3-1, p.20).
(Reference Value) is selected in [A21 hysteresis type].
• Available if(Turbidity/SS input low limit action) or(Turbidity/SS
Available when
input high limit action) is selected in [A21 type].
• Setting range: 10% of measurement span (*1)(*3)
A22 hysteresis type
Reference Value• Selects A22 output hysteresis type (Medium or Reference Value). (Fig. 8.3-1) (p.21)(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A22 type].
: Medium Value•
Sets the same value for both ON and OFF sides in relation to A22 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation to A22 value.
Both ON and OFF sides need to be set individually.

(*) The measurement unit and decimal point place follow the measurement range.
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value
If
set in [Span setting].

24

Character

Setting Item, Function, Setting Range
Factory Default
A22 ON side
1.0 (Formazin)• Sets the span of A22 ON side. See (Fig. 8.3-1). (p.21)
If(Medium Value) is selected in [A22 hysteresis type], the span of ON/OFFside will be the same value.
(Turbidity/SS input low limit action) or(Turbidity/SS• Available when
input high limit action) is selected in [A22 type].
• Setting range: 10% of measurement span (*)
A22 OFF side
1.0 (Formazin)• Sets the span of A22 OFF side. See (Fig. 8.3-1). (p.21)• Available if(Reference Value) is selected in [A22 hysteresis type].
(Turbidity/SS input low limit action) or(Turbidity/SS
Available when
input high limit action) is selected in [A22 type].
• Setting range: 10% of measurement span (*)
A11 ON delay time
0 seconds• Sets A11 ON delay time.
The A11 output does not turn ON (under the conditions of turning ON) until the time
set in [A11 ON delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A11 type].
• Setting range: 0 to 9999 seconds
A12 ON delay time
0 seconds• Sets A12 ON delay time.
The A12 output does not turn ON (under the conditions of turning ON) until the time
set in [A12 ON delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A12 type].
• Setting range: 0 to 9999 seconds
A21 ON delay time
0 seconds• Sets A21 ON delay time.
The A21 output does not turn ON (under the conditions of turning ON) until the time
set in [A21 ON delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A21 type].
• Setting range: 0 to 9999 seconds
A22 ON delay time
0 seconds• Sets A22 ON delay time.
The A22 output does not turn ON (under the conditions of turning ON) until the time
set in [A22 ON delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A22 type].
• Setting range: 0 to 9999 seconds
A11 OFF delay time
0 seconds• Sets A11 OFF delay time.
The A11 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A11 OFF delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A11 type].
• Setting range: 0 to 9999 seconds(*) The measurement unit and decimal point place follow the measurement range.
If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value
set in [Span setting].

25

Character

Setting Item, Function, Setting Range
Factory Default
A12 OFF delay time
0 seconds• Sets A12 OFF delay time.
The A12 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A12 OFF delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A12 type].
• Setting range: 0 to 9999 seconds
A21 OFF delay time
0 seconds• Sets A21 OFF delay time.
The A21 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A21 OFF delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
input high limit action) or(Turbidity/SS input High/Low limits independentaction) is selected in [A21 type].
• Setting range: 0 to 9999 seconds
A22 OFF delay time
0 seconds• Sets A22 OFF delay time.
The A22 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A22 OFF delay time] elapses.
(Turbidity/SS input low limit action),(Turbidity/SS• Available when
(Turbidity/SS input High/Low limits independent
input high limit action) or
action) is selected in [A22 type].
• Setting range: 0 to 9999 seconds
A11 High/Low limits independent
0.0 (Formazin)lower side value• Sets the lower side value of A11 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A11 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A12 High/Low limits independent
0.0 (Formazin)lower side value• Sets the lower side value of A12 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A12 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A21 High/Low limits independent
0.0 (Formazin)lower side value• Sets the lower side value of A21 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A21 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A22 High/Low limits independent
0.0 (Formazin)lower side value• Sets the lower side value of A22 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A22 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become
the value set in [Span setting].

26

Character

Setting Item, Function, Setting Range
Factory Default
A11 High/Low limits independent
0.0 (Formazin)
upper side value• Sets the upper side value of A11 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A11 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A12 High/Low limits independent
0.0 (Formazin)
upper side value• Sets the upper side value of A12 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A12 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A21 High/Low limits independent
0.0 (Formazin)
upper side value• Sets the upper side value of A21 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A21 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A22 High/Low limits independent
0.0 (Formazin)
upper side value• Sets the upper side value of A22 High/Low limits independent action. (Fig. 8.3-2)(p.21)
Disabled when set to 0 or 0.0.
(Turbidity/SS input High/Low limits independent action) is• Available whenselected in [A22 type].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
A11 hysteresis
1.0 (Formazin)• Sets hysteresis of A11 High/Low limits independent action. (Fig. 8.3-2)(p.21)• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A11 type].
• Setting range: 0.1 to 10% of measurement span (*1)(*3)
A12 hysteresis
1.0 (Formazin)• Sets hysteresis of A12 High/Low limits independent action. (Fig. 8.3-2)(p.21)• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A12 type].
• Setting range: 0.1 to 10% of measurement span (*1)(*3)
A21 hysteresis
1.0 (Formazin)• Sets hysteresis of A21 High/Low limits independent action. (Fig. 8.3-2)(p.21)• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A21 type].
• Setting range: 0.1 to 10% of measurement span (*1)(*3)
A22 hysteresis
1.0 (Formazin)• Sets hysteresis of A22 High/Low limits independent action. (Fig. 8.3-2)(p.21)• Available when
(Turbidity/SS input High/Low limits independent action) is
selected in [A22 type].
• Setting range: 0.1 to 10% of measurement span (*1)(*3)(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become
the value set in [Span setting].
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value set in(*3) If[Span setting].

27

8.4 Basic Function GroupTo enter the Basic Function Group, follow the procedure below.
1
Press thekey 3 times in Turbidity/SS Display Mode.
2
Press thekey.
The unit will enter the Basic Function Group, and the ’Set value lock‘ will appear.
Character

Setting Item, Function, Setting Range
Factory Default
Set value lock
Unlock• Locks the set values to prevent setting errors.
(Unlock): All set values can be changed.
•(Lock 1): None of the set values can be changed.
(Lock 2): Only A11, A12, A21, A22 values can be changed.
(Lock 3): All set values – except Measurement range, Measurement unit, Spansetting, Zero and Span output signal adjustments, Turbidity/SS Sensor
calibration, Transmission output Zero and Span adjustments – can be
temporarily changed. However, they revert to their previous value
after the power is turned off because they are not saved in the
non-volatile IC memory.
Do not change setting items (A11, A12, A21, A22 types). If they arechanged, they will affect other setting items.
Be sure to select Lock 3 when changing the set value frequently via
software communication. (If a value set by the softwarecommunication is the same as the value before the setting, the value
will not be written in the non-volatile IC memory.)
Communication protocol
Shinko protocol• Selects communication protocol.
: Shinko protocol•: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number. (The instrument numbers should be set one by one when
multiple instruments are connected in Serial communication, otherwise communication
is impossible.)• Setting range: 0 to 95
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
•: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
: 8 bits/No parity•: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit• Selects the stop bit.
•
: 1 bit: 2 bits

28

Character









Setting Item, Function, Setting Range
Factory Default
Transmission output high limit
100.0 (Formazin)• Sets the Transmission output high limit value. (This value correponds to 20 mA DC output.)
If Transmission output high limit and low limit are set to the same value, Transmission
output will be fixed at 4 mA DC.
• Available only when Transmission output (TA option) is ordered.
• Setting range: Transmission output low limit to Measurement range high limit (*1)(*2)
Transmission output low limit
0.0 (Formazin)• Sets the Transmission output low limit value. (This value correponds to 4 mA DC output.)
If Transmission output high limit and low limit are set to the same value, Transmission
output will be fixed at 4 mA DC.
• Available only when Transmission output (TA option) is ordered.
• Setting range: Measurement range low limit to Transmission output high limit (*1)
Transmission output status when calibrating
Last value HOLD
• Selects the Transmission output status when calibrating.
• Available when TA option is ordered.
•: Last value HOLD (Retains the last value before calibration, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output value HOLD
when calibrating].): Measured value (Outputs the measured value when calibrating.)
Transmission output value HOLD when
0.0 (Formazin)calibrating• Sets Transmission output value HOLD.
(Set value HOLD) is selected in [Transmission output status• Available when
when calibrating].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
Transmission output status when adjusting
Last value HOLD
output signal• Selects the Transmission output status when adjusting Zero output signal or Span
output signal.
• Available when Transmission output (TA option) is ordered.
: Last value HOLD (Retains the last value before adjusting output signal, and•outputs it.): Set value HOLD (Outputs the value set in [Transmission output value HOLD
when adjusting output signal].): Measured value (Outputs the measured value when adjusting output signal.)
Transmission output value HOLD when
0.0 (Formazin)
adjusting output signal• Sets Transmission output value HOLD.
(Set value HOLD) is selected in [Transmission output status• Available when
when adjusting output signal].
• Setting range: Measurement range low limit to Measurement range high limit (*1)(*2)
Auto-light function
Disabled• Selects Auto-light Enabled/Disabled.
•: Disabled: Enabled(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become
the value set in [Span setting].

29

Character

Setting Item, Function, Setting Range
Display selection

Factory Default
Turbidity/SS Display (CH1):
Turbidity/SS input value
Setting Display (CH2): No indication• Selects items to be indicated while in Turbidity/SS Display Mode.
• Selection item
Selection Item Turbidity/SS Display (CH1)
Setting Display (CH2)
Turbidity/SS input value
No indication
Turbidity/SS input value
A11 value
Turbidity/SS input value
A12 value
Turbidity/SS input value
A21 value
Turbidity/SS input value
A22 value
No indication
No indication
Indication time
00.00 (Remains lit)
• Sets the indication time of the displays after the last key operation until displays turn off
while in Turbidity/SS Display Mode.
Displays remain lit when set to 00.00.
Displays light up when any key is pressed while in unlit status.
(No indication) is selected in [Display selection].
• Not available if• Setting range: 00.00 (Remains lit)
00.01 to 60.00 (Minutes.Seconds)
A1 output allocation
A11 type• Selects A1 output allocation.
For A1 output, A11 type, A12 type, A21 type and/or A22 type are allocated.
Output is OR output.
• Not available if Transmission output (TA option) is ordered.
: A11 type•
: A12 type
: A21 type
: A22 type
: A11, A12 types: A21, A22 types: A11, A21 types: A12, A22 types: A11, A12, A21, A22 types

30

Character

Setting Item, Function, Setting Range
Factory Default
Output ON time when A1 output ON
0 seconds• Sets the output ON time when A1 output is ON.
If ON time and OFF time are set, A1 output can be turned ON/OFF in a configured
cycle when A1 output is ON. (Fig. 8.4-1)• Not available if Transmission output (TA option) is ordered.• Setting range: 0 to 9999 seconds
Timing chart (Output ON time and OFF time when A1 output is ON)
ON
Actual A1 output
OFF
A1 output to which
ON time and OFF
time are set.

ON time is turned
OFF, caused by theactual A1 output
turning OFF.

ON
OFF
ON
time

OFF
time

ON
time

OFF
time

ON
time

(Fig. 8.4-1)
Output OFF time when A1 output ON
0 seconds• Sets the output OFF time when A1 output is ON.
If ON time and OFF time are set, A1 output can be turned ON/OFF in a configured
cycle when A1 output is ON. See (Fig. 8.4-1).
• Not available if Transmission output (TA option) is ordered.
• Setting range: 0 to 9999 seconds

31

9. Calibration
Turbidity/SS Sensor Calibration Mode, Zero and Span Output Signal Adjustment Modes andTransmission Output Adjustment Mode are described below.
9.1 Turbidity/SS Sensor Calibration Mode

9.1.1 Turbidity/SS Sensor Calibration
Before using the Turbidity/SS Sensor, it must be calibrated as follows.
If(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock],the unit will not move to Turbidity/SS Sensor Calibration Mode.
Step
1

2
3

Displays[Input value][Set value][Input value][Set value][][][Calibration
wait time]

Operation
Clean the body of Turbidity/SS Sensor, particularly itslens(es).
Immerse the Turbidity/SS Sensor in the distilled water orion-exchanged water.
key andkey (in that order)
Press and hold thetogether for approx. 3 seconds in Turbidity/SS Display Mode.
The unit will proceed to Turbidity/SS Sensor Calibration Mode.
The Turbidity/SS Display (CH1) indicates, and the/ Calibration wait time
Setting Display (CH2) indicatesalternately until the time set in [Calibration wait time] haselapsed. (*1)
During the time set in [Calibration wait time], the Turbidity/ SS
Sensor will adjust to the ambient water temperature.

4

[
[

]
]

After the time set in [Calibration wait time] has elapsed,
calibration automatically starts.
During calibration, calibration signal output is turned ONon thefor approx. 3 seconds, indicatingon the Setting
Turbidity/SS Display (CH1) and
Display (CH2). (*2)
When calibration signal output is turned from OFF to ON, theTurbidity/SS Sensor will output approx. 2 mA DC of analog signal.

5

[
[

]
]

After calibration is complete, the calibration signal output ison the Turbidity/SS Display
turned OFF, indicating(CH1), and
on the Setting Display (CH2).
When calibration signal output is turned from ON to OFF, theTurbidity/SS Sensor will return to 4 mA DC of analog signal.

6[Input value][Set value]key.
Press theThe unit will revert to Turbidity/SS Display Mode.

(*1) If [Calibration wait time] is set to 0 (zero) minutes,
andis indicated on the Turbidity/SS Display (CH1),

flashes on the Setting Display (CH2).

Approximately 5 minutes after the Turbidity/SS Sensor has adjusted to the ambient water temperature,calibration can be started by pressing theAfter that, refer to steps 4 , 5 and 6 .

key.

(*2) If the

key is pressed during the time set in [Calibration wait time], calibration will start.
After that, refer to steps 4 , 5 and 6 .

32

9.1.2 Errors when Calibrating Turbidity/SS Sensor
Errors when calibrating Turbidity/SS Sensor are shown below.
To release the error, press the
key. The unit will revert to Turbidity/SS Display Mode.
Displays
Error Contents
The Turbidity/SS Sensor has an output error monitoring function.
[]
During calibration, if the output signal from the Turbidity/SS Sensor does not[]andreach approx. 2 mA DC (*), the Turbidity/SS Display (CH1) indicates
theSetting Display (CH2) indicates.
(*) Before calibration signal output is turned from ON to OFF, if the output signal from theTurbidity/SS Sensor is within 1 to 3 mA DC, it is regarded as normal. If the output signal isoutside this range, it is regarded as an error, and the error code is indicated.

[
[

]
]

After calibration is completed, if the output signal from the Turbidity/SS Sensor
does not return to 4 mA DC (*), the Turbidity/SS Display (CH1) indicatesandSetting Display (CH2) indicates.
(*) Approximately 5 seconds after calibration signal output is turned from ON to OFF, if theoutput signal from the Turbidity/SS Sensor is within 3.5 to 4.5 mA DC, it is regarded as normal.
If the output signal is outside this range, it is regarded as an error, and the error code isindicated.

9.2 Zero and Span Output Signal Adjustment Modes

9.2.1 Adjusting Zero and Span Output Signals

Caution• Be sure to calibrate Turbidity/SS Sensor before adjusting Zero and Span output signals.
• Be sure to adjust Span output signal after Zero output signal is adjusted.
Before using this instrument, adjust Zero and Span output signals as follows.
(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock],If
the unit cannot move to Zero or Span Output Signal Adjustment Mode.
Step
1

2
3

4

Displays[Input value][Set value][Input value][Set value][Input value]
[][Zero output
signal adjustment
value][Input value]
[][Zero output
signal adjustment
value]

Operation
Clean the body of Turbidity/SS Sensor, particularly itslens(es).
Immerse the Turbidity/SS Sensor in the distilled wateror ion-exchanged water.
Press and hold the
key andkey (in that order)
together for approx. 3 seconds in Turbidity/SS Display Mode.
The unit will proceed to Zero Output Signal Adjustment
Mode, indicating a Turbidity/SS input value on the/Zero output
Turbidity/SS Display (CH1), andsignal adjustment value alternately on the Setting Display(CH2).
Approximately 5 minutes after the Turbidity/SS Sensor
adjusts to the ambient water temperature, check the
Turbidity/SS input value.
If the Turbidity/SS input value does not show 0 (zero), setorthe Zero output signal adjustment value with the
key so that the Turbidity/SS input value becomes 0(zero).
Setting range of Zero output signal adjustment value:
5% of measurement span
Zero output signal adjustment is now completed.

33

Step
5

Displays[Input value]
[][Span output
signal adjustment
value]

6[Input value]
[][Span output
signal adjustment
value]

7[Input value][Set value]

Operation
Press thekey in Zero Output Signal Adjustment
Mode.
The unit will proceed to Span Output Signal Adjustment
Mode, indicating the Turbidity/SS input value on the
Turbidity/SS Display (CH1), and/Span output
signal adjustment value alternately on the Setting Display(CH2).
Block the light beam between the lenses of the sensor
for more than 30 seconds. [Be careful not to touchthe lens(es).]
If the Turbidity/SS input value (*) does not show
measurement range high limit, set the Span output
signal adjustment value with theor
key sothat the input value becomes measurement range highlimit value.
Setting range of Span output signal adjustment value:
5% of measurement span
Span output signal adjustment is now completed.
Press thekey.
The unit will revert to Turbidity/SS Display Mode.

(*) When the SS Sensor TS-MxS-A is used, set the Span output signal adjustment value so that the Turbidity/SS
input value becomes 5000.
The measurement range of the SS Sensor TS-MxS-A is 0 to 50000 mg/L (Kaolin).
As the Turbidity/SS Display (CH1) has 4 digits, the value 10000 mg/L or higher cannot be indicated.
Therefore, the ones digit of current Turbidity/SS input value is rounded off, divided by 10, and then indicated.
As the measurement range high limit is 50000 mg/L, set the Span output signal adjustment value so that the
Turbidity/SS input value becomes 5000

9.2.2 Errors when Adjusting Zero and Span Output Signals
Errors when adjusting Zero and Span output signals are shown below.
To release the error, press the
key. The unit will revert to Turbidity/SS Display Mode.
Displays
Error Contents
While adjusting Zero output signal, if the Turbidity/SS[][Input value]
input value has become lower than the value[][Zero output signal
equivalent to 3.5 mA DC, the Turbidity/SS Display
adjustment value](CH1) will indicate/Turbidity/SS input value
alternately, and the Setting Display (CH2) will indicate/Zero output signal adjustment value alternately.
While adjusting Span output signal, if the Turbidity/SS[][Input value]
input value has exceeded the value equivalent to 20.5[]
[Span output signal
mA DC, the Turbidity/SS Display (CH1) will indicate
adjustment value]/ Turbidity/SS input value alternately, and theSetting Display (CH2) will indicate/Span output
signal adjustment value alternately.

34

9.3 Transmission Output Adjustment Mode
Fine adjustment of Transmission output is performed.
The WIL-101-TU is adjusted at the factory, however, differences may occur between the indication
value of the connected equipment (recorders, etc.) and output value of this instrument.
In this case, perform Transmission output Zero adjustment and Span adjustment.
Available when Transmission output (TA option) is ordered.
The unit cannot enter Transmission output Zero adjustment mode while in Zero output signal
adjustment mode, Span output signal adjustment mode or Turbidity/SS Sensor calibration mode.
The following outlines the procedure for Transmission output adjustment.
(1) Press and hold theandkey (in that order) together for approx. 3 seconds in Turbidity/SS
Display Mode.
The unit enters Transmission output Zero adjustment mode, and indicates the following.
Display
Indication Contents
Turbidity/SS Display (CH1)
Setting Display (CH2)Transmission output Zero adjustment value(2) Set Transmission output Zero adjustment value with theindicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output spanor

key, while viewing the value

key.
(3) Press the
The unit enters Transmission output Span adjustment mode, and indicates the following.
Display
Indication Contents
Turbidity/SS Display (CH1)
Setting Display (CH2)Transmission output Span adjustment value(4) Set Transmission output Span adjustment value with theorthe value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output spankey, while viewing

key.
(5) Press the
The unit returns to Transmission output Zero adjustment mode.
Repeat steps (2) to (5) if necessary.
(6) To finish Transmission output adjustment, press theadjustment mode.
The unit reverts to Turbidity/SS Display Mode.

35

key in Transmission output Span

10. Measurement
10.1 Starting Measurement
For approx. 4 seconds after the power is switched ON, the input type is indicated on the Turbidity/SS
Display (CH1). (Table 10.1-1)
During this time, all outputs are in OFF status, and all LED indicators – except the Setting Display(CH2) and PWR indicator – turn off.
After that, measurement starts, indicating Turbidity/SS input value on the Turbidity/SS Display (CH1),
and the item selected in [Display selection (p.30)] on the Setting Display (CH2).
This status is called Turbidity/SS Display Mode.
(Table 10.1-1)
Measurement Range
0.0 to 100.0(Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin) (*)

Turbidity/SS Display (CH1)(*) The measurement range of the SS Sensor TS-MxS-A is 0 to 50000 mg/L (Kaolin).
As the Turbidity/SS Display (CH1) has 4 digits, the value 10000 mg/L or higher cannot be indicated.
Therefore, the ones digit of current Turbidity/SS input value is rounded off, divided by 10, and then indicated.
(e.g.) 25004 mg/L (Kaolin): Indicated as 2500.
25005 mg/L (Kaolin): Indicated as 2501.

10.2 A
OutputWhen(Turbidity/SS input low limit action),(Turbidity/SS input high limit action) isoutput is turned ON if Turbidity/SS input
selected in [A11, A12, A21, A22 type (pp. 21, 22)], A
value.
value exceeds the A
When(Turbidity/SS input High/Low limits independent action) is selected in [A11, A12, A21,
output is turned ON if Turbidity/SS input value exceeds the A
A22 type (pp. 21, 22)], A
High/Low limits lower side value.
High/Low limits upper side value, or drops below A
A1 output is turned ON depending on the settings in [A1 output allocation (p.30)] and [Output ON/OFF
time when A1 output ON (p.31)].
If ON time and OFF time are set, A1 output can be turned ON/OFF in a configured cycle when A1
output is ON. (Fig. 10.2-1)
Timing chart (Output ON time and OFF time when A1 output is ON)
ON
Actual A1 output
OFF
ON time is turned
OFF, caused by theactual A1 output
turning OFF.

A1 output to which ON
ON time and OFF
time are set.
OFF
ON
time

ON
time

OFF
time

(Fig. 10.2-1)

36

OFF
time

ON
time

A
output status can be read by reading Status flag 1 (A11, A12, A21, A22 output flag bit) in Serial
communication.
output status, when input errors occur, differs depending on the selection in [AoutputA
when input errors occur (p.19)].
(Disabled) is selected, A
output and A
output status will be turned OFF when input• If
errors occur.
(Enabled) is selected, A
output and A
output status will be maintained when
• If
input errors occur.
10.3 Errors during Measurement
Errors during measurement are shown below.
Displays[Input value][][Input value][][Input value][][Input value][]

Error Contents
When Self-check output from the Turbidity/SS Sensor is received, the Turbidity
Display (CH1) indicates the Turbidity/SS input value, and the Setting Display (CH2).
flashes
When analog signal (+ white, – black) cable of Turbidity/SS Sensor is disconnectedor short-circuited, the Turbidity/SS Display (CH1) indicates the Turbidity/SS input
value, and the Setting Display (CH2) flashes.
When Turbidity/SS input value has exceeded the value equivalent to 20.5 mA DC,
the Turbidity/SS Display (CH1) indicates the Turbidity/SS input value equivalent to.
20.5 mA DC, and the Setting Display (CH2) flashes
When Turbidity/SS input value has become lower than the value equivalent to 3.5mA DC, the Turbidity/SS Display (CH1) indicates the Turbidity/SS input value.
equivalent to 3.5 mA DC, and the Setting Display (CH2) flashes

3711. Communication
11.1 System Configuration Example• When using the USB Communication Cable CMC-001-3 (sold separately)
WIL-101-TU
No. 2

No. 30• When using the Communication Converter IF-400 (sold separately)
WIL-101-TU
Communication Converter
Host Computer
IF-400 (sold separately) No. 0 No. 1 No. 2

No. 30

No. 0

No. 1

Host Computer

USB Communication Cable

CMC-001-3 (sold separately)(Fig. 11.1-1)

RS-232C
RS-485(Fig. 11.1-2)
11.2 Setting Method of This Instrument
Communication parameters can be set in the Basic Function Group.
To enter the Basic Function Group, follow the procedure below.
1
Press thekey 3 times in Turbidity/SS Display Mode.
2
Press thekey twice. ’Communication protocol‘ will appear.
3 Set each item. (Use theor
key for settings, and register the value with theCharacterkey.)

Setting Item, Function, Setting Range
Factory Default
Communication protocol
Shinko protocol• Selects communication protocol.
: Shinko protocol•: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number.
The instrument numbers should be set one by one when multiple instruments areconnected in Serial communication, otherwise communication is impossible.
• Setting range: 0 to 95
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
: 9600 bps•: 19200 bps: 38400 bps

38Character

4

Press theSetting Item, Function, Setting Range
Data bit/Parity• Selects data bit and parity.
: 8 bits/No parity•: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit• Selects the stop bit.
: 1 bit•: 2 bits

Factory Default
7 bits/Even

1 bit

key multiple times. The unit reverts to Turbidity/SS Display Mode.

11.3 Communication Procedure
Communication starts with command transmission from the host computer (hereafter Master) andends with the response of the WIL-101-TU (hereafter Slave).
• Response with Data
When the master sends the reading command, the slave
responds with the corresponding set value or current status.
Data• Acknowledgement
Command
When the master sends the setting command, the slave
responds
by sending acknowledgement after the
Acknowledgement
processing is terminated.
• Negative Acknowledgement
Command
When the master sends a non-existent command or value
Negative Acknowledgementout of the setting range, the slave returns a negative
acknowledgement.
Command• No Response
No response
The slave will not respond to the master in the following cases:• Global address (Shinko protocol) is set.
(Fig.11.3-1)• Broadcast address (MODBUS protocol) is set.
• Communication error (framing error, parity error)• Checksum error (Shinko protocol), LRC discrepancy (MODBUSASCII mode), CRC-16 discrepancy (MODBUS RTU mode)
Communication Timing of the RS-485
Master Side (Take note while programming)
When the master starts transmission through the RS-485 communication line, the master is arranged
so as to provide an idle status (mark status) transmission period of 1 or more characters before
sending the command to ensure synchronization on the receiving side.
Set the program so that the master can disconnect the transmitter from the communication line withina 1 character transmission period after sending the command in preparation for reception of the
response from the slave.
To avoid collision of transmissions between the master and the slave, send the next command after
carefully checking that the master has received the response.
If a response to the command is not returned due to communication errors, set the Retry Processing
to send the command again. (It is recommended to execute Retry twice or more.)
MasterSlaveCommand

Slave Side
When the slave starts transmission through the RS-485 communication line, the slave is arranged
so as to provide an idle status (mark status) transmission period of 1 or more characters before
sending the response to ensure synchronization on the receiving side.
The slave is arranged so as to disconnect the transmitter from the communication line within a 1
character transmission period after sending the response.

3911.4 Shinko Protocol

11.4.1 Transmission Mode
Shinko protocol is composed of ASCII.
Hexadecimal (0 to 9, A to F), which is divided into high order (4-bit) and low order (4-bit) out of 8-bit
binary data in command is transmitted as ASCII characters.
Data format
Start bit: 1 bit
Data bit: 7 bits
Parity: Even
Stop bit: 1 bit
Error detection: Checksum
11.4.2 Command Configuration
All commands are composed of ASCII.
The data (set value, decimal number) is represented by hexadecimal numbers.
The negative numbers are represented in 2's complement.
Numerals written below the command represent number of characters.
(1) Setting Command
Sub
HeaderCommand
Data
Address
Data
Checksumaddress(02H)
type (50H)
item
(20H)
1
1
1
1
4
4
2

Delimiter(03H)
1(2) Reading Command
Header(02H)

Address

1

1

Sub
address(20H)
1Commandtype (20H)

Data
item

Checksum

Delimiter
(03H)

1

4

2

1

Commandtype (20H)

Data
item

Data

Checksum

Delimiter
(03H)

1

4

4

2

1

(3) Response with Data
Header(06H)

Address

1

1(4) Acknowledgement
HeaderAddress
(06H)
1
1

Sub
address(20H)
1

Checksum2(5) Negative Acknowledgement
HeaderError
Address
(15H)
code
1
1
1

Delimiter(03H)
1

Checksum2

Header:Delimiter(03H)
1

Control code to represent the beginning of the command or the response.
ASCII codes are used.
Setting command, Reading command: STX (02H) fixed
Response with data, Acknowledgement: ACK (06H) fixed
Negative acknowledgement:
NAK (15H) fixed
Instrument Number (Address): Numbers by which the master discerns each slave.
Instrument number 0 to 94 and Global address 95.
ASCII codes (20H to 7FH) are used by adding 20H to instrument numbers 0 to 95(00H to 5FH).
95 (7FH) is called Global address, which is used when the same command is sent
to all the slaves connected. However, the response is not returned.
Sub Address:
20H fixed

40Command Type: Code to discern Setting command (50H) and Reading command (20H)
Data Item:Classification of the command object.
Composed of 4-digit hexadecimal numbers, using ASCII.
[Refer to “11.6. Communication Command Table”. (pp. 46 to 51)]
Data:
The contents of data (set value) differ depending on the setting command.
Composed of 4-digit hexadecimal numbers, using ASCII.
[Refer to “11.6. Communication Command Table”. (pp. 46 to 51)]
Checksum:
2-character data to detect communication errors.
Refer to “11.4.3 Checksum Calculation”.
Delimiter:Control code to represent the end of command.
ASCII code ETX (03H) fixed.
Error Code:
Represents an error type using ASCII.
1 (31H)-----Non-existent command
2 (32H)-----Not used
3 (33H)-----Value outside the setting range
4 (34H)-----Status unable to be set [(e.g.) During Turbidity/SS Sensor calibration mode,
Zero output signal adjustment mode, Span output signal adjustmentmode, etc.]
5 (35H)-----During setting mode by keypad operation

11.4.3 Checksum Calculation
Checksum is used to detect receiving errors in the command or data.
Set the program for the master side as well to calculate the checksum of the response data fromthe slaves so that communication errors can be checked.
The ASCII code (hexadecimal) corresponding to the characters which range from the address tothat before the checksum is converted to binary notation, and the total value is calculated.
The lower one byte of the total value is converted to 2’s complement, and then to hexadecimal
numbers, that is, ASCII code for the checksum.
• 1’s complement: Reverse each binary bit. 0 will become 1 and vice versa.
• 2’s complement: Add 1 to 1’s complement.
Checksum Calculation Example
A11 ON delay time: 100 seconds (0064H)
Address (instrument number): 0 (20H)

Checksum calculation range[e.g.]
P

STX

0

0

0

8

D

0

0

6

4

30H

30H

36H

34H

E

ETX

[Characters above are represented in ASCII.]
02H

20H

20H

50H

30H

30H

30H

38H

[Hexadecimal][Binary]0010 0000
20H
0010 0000
20H
0101 0000
50H
0011 0000
30H
0011 0000
30H
0011 0000
30H
0011 1000
38H
0011 0000
30H
0011 0000
30H
0011 0110
36H
0011 0100+ 34H
10 0010 0010

44H 45H

Checksum[1's complement]+[2's complement](Fig. 11.4.3-1)

411101 1101
1
1101 1110[Hexadecimal]

D[ASCII]

44H 45H

E

Checksum03H11.5 MODBUS Protocol
11.5.1 Transmission Mode
There are 2 transmission modes (ASCII and RTU) in MODBUS protocol.
ASCII Mode
Hexadecimal (0 to 9, A to F), which is divided into high order (4-bit) and low order (4-bit)
out of 8-bit binary data in command is transmitted as ASCII characters.
Data format
Start bit: 1 bit
Data bit: 7 bits (8 bits) (Selectable)
Parity:Even (No parity, Odd) (Selectable)
Stop bit: 1 bit (2 bits) (Selectable)
Error detection : LRC (Longitudinal Redundancy Check)
RTU Mode
8-bit binary data in command is transmitted as it is.
Data format
Start bit: 1 bit
Data bit: 8 bits
Parity:No parity (Even, Odd) (Selectable)
Stop bit: 1 bit (2 bits) (Selectable)
Error detection: CRC-16 (Cyclic Redundancy Check)11.5.2 Data Communication Interval
ASCII Mode
Max.1 second of interval between ASCII mode characters
RTU Mode
Communication speed 9600 bps, 19200 bps:
To transmit continuously, an interval between characters which consist of one message, must bewithin 1.5-character transmission times.
Communication speed 38400 bps:
To transmit continuously, an interval between characters which consist of one message, must bewithin 750 s.
If an interval lasts longer than 1.5-character transmission times or 750 s, the WIL-101-TU
assumes that transmission from the master is finished, which results in a communication error, andwill not return a response.
11.5.3 Message Configuration
ASCII Mode
ASCII mode message is configured to start by Header [: (colon) (3AH)] and end by Delimiter [CR(carriage return) (0DH) + LF (Line feed) (0AH)].
Header(:)

Slaveaddress

Function
code

Error check
LRC

Data

Delimiter(CR)

Delimiter(LF)

RTU Mode
Communication speed 9600 bps, 19200 bps: RTU mode is configured to start after idle time isprocessed for more than 3.5-character transmissions, and end after idle time is processed formore than 3.5-character transmissions.
Communication speed 38400 bps: RTU mode is configured to start after idle time is processed
for more than 1.75 ms, and end after idle time is processed for more than 1.75 ms.
3.5 idle
Error check3.5 idle
Slave
Function
Data
CRC-16characterscharacters addresscode(1) Slave Address
Slave address is an individual instrument number on the slave side, and is set within the range
0 to 95 (00H to 5FH). The master identifies slaves by the slave address of the requested
message.

42

The slave informs the master which slave is responding to the master by placing its own
address in the response message.
Slave address 00H (Broadcast address) can identify all the slaves connected. However, slaves
do not respond.
(2) Function CodeThe function code is the command code for the slave to undertake one of the following actions.
(Table 11.5.3-1)
Contents
Function Code03 (03H)
Reading the set value and information from slaves
06 (06H)
Setting to slaves
The Function code is used to discern whether the response is normal (acknowledgement) or if any
error (negative acknowledgement) has occurred when the slave returns the response message tothe master.
When acknowledgement is returned, the slave simply returns the original function code.
When negative acknowledgement is returned, the MSB of the original function code is set as 1 forthe response.
(For example, if the master sends request message setting 10H to the function code by mistake,slave returns 90H by setting the MSB to 1, because the former is an illegal function.)
For negative acknowledgement, the exception codes below are set to the data of the response
message, and returned to the master in order to inform it of what kind of error has occurred. (Table
11.5.3-2)(Table 11.5.3-2)
Contents
Exception Code1 (01H)
Illegal function (Non-existent function)
2 (02H)
Illegal data address (Non-existent data address)
3 (03H)
Illegal data value (Value out of the setting range)
17 (11H)
Shinko protocol error code 4 [Status unable to be set.
(e.g.) During Turbidity/SS Sensor calibration mode, Zero output signal
adjustment mode, Span output signal adjustment mode, etc.]
18 (12H)
Shinko protocol error code 5 (During setting mode by keypad operation)(3) Data
Data differs depending on the function code.
A request message from the master is composed of a data item, amount of data and setting data.
A response message from the slave is composed of the byte count, data and exception codes innegative acknowledgements.
The effective range of data is -32768 to 32767 (8000H to 7FFFH).
(4) Error CheckASCII Mode
After calculating LRC (Longitudinal Redundancy Check) from the slave address to the end ofdata, the calculated 8-bit data is converted to two ASCII characters, and are appended to the endof message.
How to calculate LRC
1 Create a message in RTU mode.
2 Add all the values from the slave address to the end of data. This is assumed as X.
3 Make a complement for X (bit reverse). This is assumed as X.
4 Add a value of 1 to X. This is assumed as X.
5 Set X as an LRC to the end of the message.
6 Convert the whole message to ASCII characters.

43

RTU Mode
After calculating CRC-16 (Cyclic Redundancy Check) from the slave address to the end of thedata, the calculated 16-bit data is appended to the end of message in sequence from low order tohigh order.
How to calculate CRC-16
In the CRC-16 system, the information is divided by the polynomial series. The remainder is added
to the end of the information and transmitted. The generation of a polynomial series is as follows.
(Generation of polynomial series: X16 + X 15 + X 2 + 1)
1 Initialize the CRC-16 data (assumed as X) (FFFFH).
2 Calculate exclusive OR (XOR) with the 1st data and X. This is assumed as X.
3 Shift X one bit to the right. This is assumed as X.
4 When a carry is generated as a result of the shift, XOR is calculated by X of 3 andthe fixed value (A001H). This is assumed as X. If a carry is not generated, go to step 5 .
5 Repeat steps 3 and 4 until shifting 8 times.
6 XOR is calculated with the next data and X. This is assumed as X.
7 Repeat steps 3 to 5 .
8 Repeat steps 3 to 5 up to the final data.
9 Set X as CRC-16 to the end of message in sequence from low order to high order.

11.5.4 Message Example
ASCII Mode
Numerals written below the command represent the number of characters.
1

Reading [Slave address 1, Data item 0080H (Turbidity/SS input value)]• A request message from the masterAmount of data means how many data items are to be read. It is fixed as (30H 30H 30H 31H).
Header Slave
Function
Data item
Amount of data
Error check Delimiter
addresscode[0080H][0001H]
LRC(3AH) (30H 31H) (30H 33H) (30H 30H 38H 30H) (30H 30H 30H 31H) (37H 42H) (0DH 0AH)
1
2
2
4
4
2
2
• Response message from the slave in normal status [When turbidity is 10.0 (Formazin) (0064H)]
The response byte count means the byte count of data which have been read. It is fixed as (30H
32H).
Response
Header Slave
Data
Error check Delimiter
Functionbyte countaddress[0064H]
LRC
code
[02H]
(30H 30H 36H 34H) (39H 36H) (0DH 0AH)
(3AH) (30H 31H) (30H 33H)
(30H 32H)
1
2
2
2
4
2
2
• Response message from the slave in exception (error) status (When a data item is incorrect)
The function code MSB is set to 1 for the response message in exception (error) status (83H isreturned). The exception code 02H (Non-existent data address) is returned (error).
Header Slave
Function Exception code Error check Delimiter
address
code
[02H]
LRC
(3AH) (30H 31H) (38H 33H) (30H 32H)
(37H 41H) (0DH 0AH)
1
2
2
2
2
2
Setting [Slave address 1, Data item 0008H (A11 ON delay time)• A request message from the master [When A11 ON delay time is set to 100 seconds (0064H)]
Header Slave
Function
Data item
Data
Error check Delimiter
addresscode[0008H][0064H]
LRC(3AH) (30H 31H) (30H 36H) (30H 30H 30H 38H) (30H 30H 36H 34H) (38H 44H) (0DH 0AH)
1
2
2
4
4
2
2

2

• Response message from the slave in normal status
Header Slave
Function
Data item
Data
Error check Delimiter
addresscode[0008H][0064H]
LRC(3AH) (30H 31H) (30H 36H) (30H 30H 30H 38H) (30H 30H 36H 34H) (38H 44H) (0DH 0AH)
1
2
2
4
4
2
2

44

• Response message from the slave in exception (error) status (When a value out of the setting
range is set.)
The function code MSB is set to 1 for the response message in exception (error) status (86H isreturned). The exception code 03H (Value out of the setting range) is returned (error).
Header Slave
Function Exception code Error check
Delimiter
address
code
[03H]
LRC
(3AH) (30H 31H) (38H 36H) (30H 33H)
(37H 36H)(0DH 0AH)
1
2
2
2
2
2

RTU Mode
Numerals written below the command represent number of characters.
Reading [Slave address 1, Data item 0080H (Turbidity/SS input value)]• A request message from the masterAmount of data means how many data items are to be read. It is fixed as (0001H).
Slave
Function
Data item
Amount of data
Error check3.5 idle
addresscode
CRC-16characters
(01H)
(03H)
(0080H)(0001H)(85E2H)
1
1
2
2
2

1

3.5 idle
characters• Response message from the slave in normal status [When turbidity is 100.0 (Formazin) (0064H)]
The response byte count means the byte count of data which has been read. It is fixed as (02H).
Slave
Function
Response
Data
Error check3.5 idle
3.5 idle
addresscodebyte countCRC-16characterscharacters
(01H)
(03H)
(02H)
(0064H)(B9AFH)1
1
1
2
2• Response message from the slave in exception (error) status (When a data item is incorrect)
The function code MSB is set to 1 for the response message in exception (error) status (83H isreturned).
The exception code (02H: Non-existent data address) is returned (error).
Slave
Function Exception code
Error check3.5 idle
3.5 idle
addresscode
CRC-16characterscharacters
(01H)
(83H)
(02H)
(C0F1H)1
1
1
2
Setting (Slave address 1, Data item 0008H (A11 ON delay time)• A request message from the master [When A11 ON delay time is set to 100 seconds (0064H)]
Slave
Function
Data item
Data
Error check3.5 idle
3.5 idle
addresscode
CRC-16characterscharacters
(01H)
(06H)
(0008H)(0064H)(D9E3H)
1
1
2
2
2

2

• Response message from the slave in normal status
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(06H)
(0008H)
1
1
2

Data(0064H)
2

Error check
CRC-16(D9E3H)2

3.5 idle
characters• Response message from the slave in exception (error) status (When a value out of the setting range
is set)
The function code MSB is set to 1 for the response message in exception (error) status (86H isreturned.).
The exception code (03H: Value out of the setting range) is returned (error).
Slave
Function Exception code
Error check3.5 idle
3.5 idle
addresscode
CRC-16characterscharacters
(01H)
(86H)
(03H)
(0261H)
1
1
1
2

45

11.6 Communication Command Table
11.6.1 Notes about Setting/Reading Command• The data (set value, decimal) is converted to hexadecimal numbers.
A negative number is represented in 2's complement.
• When connecting multiple slaves, the address (instrument number) must not be duplicated.
• Data items 0200H to 0209H (User save area 1 to 10) can be read or set in 1 word units.
Effective range of data is -32768 to 32767 (8000H to 7FFFH).
• MODBUS protocol uses Holding Register addresses. The Holding Register addresses are
created as follows. A Shinko command data item is converted to decimal number, and the offset
of 40001 is added. The result is the Holding Register address.
Using Data item 0008H (A11 ON delay time) as an example:
Data item in the sending message is 0008H, however, MODBUS protocol Holding Register
address is 40009 (8 + 40001).
• Even if options are not ordered, setting or reading via software communication will be possible.
Command contents of A11, A12, A21 and A22 will function. However, command contents ofTransmission output will not function.
(1) Setting Command• Up to 1,000,000 (one million) entries can be stored in non-volatile IC memory.
If the number of settings exceeds the limit, the data will not be saved. So, ensure the set values
are not frequently changed via software communication. (If a value set via softwarecommunication is the same as the value before the setting, the value will not be written in
non-volatile IC memory.)• Be sure to select Lock 3 when changing the set value frequently via software communication. If
Lock 3 is selected, all set values – except Measurement range, Measurement unit, Span setting,Zero and Span output signal adjustments, Turbidity/SS Sensor calibration, Transmission output
Zero and Span adjustments – can be temporarily changed. However, they revert to their previous
value after the power is turned off because they are not saved in the non-volatile IC memory.
Do not change setting items (A11, A12, A21, A22 types). If they are changed, they will affect othersetting items.
• Setting range of each item is the same as that of keypad operation.
• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal
point is used.
• If A11, A12, A21 or A22 type is changed at Data item 0005H (A11 type), 0050H (A12 type), 0051H(A21 type) or 0052H (A22 type), the A11, A12, A21 or A22 value will default to 0 (zero). The output
status of A11, A12, A21 or A22 will also be initialized.
• Settings via software communication are possible while in Set value lock status.
• Communication parameters such as Instrument Number, Communication Speed of the slave cannot
be set by software communication. They can only be set via the keypad. (pp.38, 39)• When sending a command by Global address [95 (7FH), Shinko protocol] or Broadcast address[00H, MODBUS protocol], the same command is sent to all the slaves connected. However, theresponse is not returned.
(2) Reading Command• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal
point is used for a response.

46

11.6.2 Setting/Reading Command
ShinkoMODBUS
Command Function
Data ItemType
Code
50H/20H
06H/03H 0004H Measurement range
Data
0000H
0001H
0002H
0003H
0004H

Measurement Range
0.0 to 100.0(Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin)

50H/20H

06H/03H

0005H

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

0006H
0007H
0008H
0009H
000AH

50H/20H

06H/03H

50H/20H
50H/20H

06H/03H
06H/03H

A11 value
A11 ON side
A11 ON delay time
A11 OFF delay time
Turbidity/SS input filter
time constant000CH Turbidity/SS inputs formoving average
000DH Calibration wait time
0030H Set value lock50H/20H

06H/03H

0032H

50H/20H

06H/03H

0033H

50H/20H

06H/03H

0034H

50H/20H

06H/03H

0035H

A11 type

Transmission output
high limit
Transmission output
low limit
Auto-light function
Display
selection

Data
0000H
0001H
0002H
0003H
0004H
0005H

50H/20H
50H

06H/03H
06H

0036H
0040H

50H
50H

06H
06H

0041H
0042H

50H/20H

06H/03H

0043H

50H/20H

06H/03H

0044H

50H/20H

06H/03H

0045H

Data

Model
Turbidity Sensor TC-100
Turbidity Sensor TC-500
Turbidity Sensor TC-3000
SS Sensor TCS-1000(E)SS Sensor TS-MxS-A

0000H: No action
0001H: Turbidity/SS input low limit action
0002H: Turbidity/SS input high limit action
0003H: Error output
0004H: Fail output
0005H: Turbidity/SS input High/Low limits
independent action
Set value
Set value
Set value
Set value
Set value
Set value
Set value
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
Set value
Set value
0000H: Disabled
0001H: Enabled
Turbidity/SS Display(CH1)
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
No indication

Setting Display(CH2)
No indication
A11 valueA12 value
A21 value
A22 value
No indication

Indication time
Set value
Turbidity/SS Sensor
0000H: Turbidity/SS Display Modecalibration mode
0001H: Turbidity/SS Sensor calibration mode
Calibration signal output 0001H: Calibration signal output
Output signal
0000H: Turbidity/SS Display Modeadjustment mode
0001H: Zero output signal adjustment mode
0002H: Span output signal adjustment mode
Zero output signal
Set value
adjustment value
Span output signal
Set value
adjustment valueA
output when
0000H: Enabled
input errors occur
0001H: Disabled47

Shinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H

0048H

50H/20H

06H/03H

0049H

50H/20H

06H/03H

0050H

Output ON time whenA1 output ON
Output OFF time whenA1 output ON
A12 type

50H/20H

06H/03H

0051H

A21 type

50H/20H

06H/03H

0052H

A22 type

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

0053H
0054H
0055H
0056H
0057H
0058H
0059H
005AH
005BH
005CH
005DH
005EH
0068H

0000H: No action
0001H: Turbidity/SS input low limit action
0002H: Turbidity/SS input high limit action
0003H: Error output
0004H: Fail output
0005H: Turbidity/SS input High/Low limits
independent action
0000H: No action
0001H: Turbidity/SS input low limit action
0002H: Turbidity/SS input high limit action
0003H: Error output
0004H: Fail output
0005H: Turbidity/SS input High/Low limits
independent action
0000H: No action
0001H: Turbidity/SS input low limit action
0002H: Turbidity/SS input high limit action
0003H: Error output
0004H: Fail output
0005H: Turbidity/SS input High/Low limits
independent action
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value

50H/20H

06H/03H

50H

06H

007FH

50H/20H

06H/03H

0100H

Key operation change
flag clearing
A11 hysteresis type

0000H: A11 type
0001H: A12 type
0002H: A21 type
0003H: A22 type
0004H: A11, A12 types
0005H: A21, A22 types
0006H: A11, A21 types
0007H: A12, A22 types
0008H: A11, A12, A21, A22 types
0001H: Clear change flag

50H/20H

06H/03H

0101H

A12 hysteresis type

Data Item

Data

A12 value
A21 value
A22 value
A12 ON side
A21 ON side
A22 ON side
A12 ON delay time
A21 ON delay time
A22 ON delay time
A12 OFF delay time
A21 OFF delay time
A22 OFF delay time
Turbidity/SS input
sensor correction
006AH A1 output allocation48

Set value
Set value

0000H: Medium Value
0001H: Reference Value
0000H: Medium Value
0001H: Reference Value

Shinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H 0102H

A21 hysteresis type

Data Item

Data

50H/20H

06H/03H

0103H

A22 hysteresis type

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

0104H
0105H
0106H
0107H
0108H

A11 OFF side
A12 OFF side
A21 OFF side
A22 OFF side
Measurement unit

50H/20H
50H/20H

06H/03H
06H/03H

0109H
010FH

Span setting
Transmission output
status when calibrating

50H/20H

06H/03H

0110H

50H/20H

06H/03H

0111H

50H/20H

06H/03H

0112H

50H

06H

0126H

50H/20H

06H/03H

0127H

50H/20H

06H/03H

0128H

50H/20H

06H/03H

0139H

50H/20H

06H/03H

013AH

50H/20H

06H/03H

013BH

50H/20H

06H/03H

013CH

50H/20H

06H/03H

013DH

50H/20H

06H/03H

013EH

50H/20H

06H/03H

013FH

50H/20H

06H/03H

0140H

Transmission output
value HOLD whencalibrating
Transmission output
status when adjusting
output signal
Transmission output
value HOLD when
adjusting output signal
Transmission output
adjustment mode

Transmission output
Zero adjustment value
Transmission output
Span adjustment value
A11 High/Low limits
independent lower sidevalue
A12 High/Low limits
independent lower sidevalue
A21 High/Low limits
independent lower sidevalue
A22 High/Low limits
independent lower sidevalue
A11 High/Low limits
independent upper sidevalue
A12 High/Low limits
independent upper sidevalue
A21 High/Low limits
independent upper sidevalue
A22 High/Low limits
independent upper side
value

49

0000H: Medium Value
0001H: Reference Value
0000H: Medium Value
0001H: Reference Value
Set value
Set value
Set value
Set value
0000H: Formazin
0001H: Kaolin (mg/L)
Set value
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value

0000H: Turbidity/SS Display Mode
0001H: Transmission output
Zero adjustment mode
0002H: Transmission output
Span adjustment modeSet value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set valueShinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H 0141H
50H/20H
06H/03H 0142H
50H/20H
06H/03H 0143H
50H/20H
06H/03H 0144H
50H/20H
06H/03H 0200H
50H/20H
06H/03H 0201H
50H/20H
06H/03H 0202H
50H/20H
06H/03H 0203H
50H/20H
06H/03H 0204H
50H/20H
06H/03H 0205H
50H/20H
06H/03H 0206H
50H/20H
06H/03H 0207H
50H/20H
06H/03H 0208H
50H/20H
06H/03H 0209H

11.6.3 Read Only Command
ShinkoMODBUS
Command Function
Type
Code
20H
03H
0080H
20H
03H
0081H

Data Item

Data

A11 hysteresis
A12 hysteresis
A21 hysteresis
A22 hysteresis
User save area 1
User save area 2
User save area 3
User save area 4
User save area 5
User save area 6
User save area 7
User save area 8
User save area 9
User save area 10

Data Item

Set value
Set value
Set value
Set value-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)

Data

Turbidity/SS input value
Turbidity/SS input value
Status flag 10000 0000 0000 0000
215
to
20
20 digit: Not used (Always 0)
21 digit: Turbidity/SS input value has exceeded the value
equivalent to 20.5 mA DC.
0: Normal
1: Error
22 digit: Turbidity/SS input value has become lower than the value
equivalent to 3.5 mA DC.
0: Normal
1: Error
23 digit: Analog signal (+ white, – black) cable of the Turbidity/SS
Sensor is disconnected or short-circuited.
0: Normal
1: Error
24 digit: When Self-check output from the Turbidity/SS Sensor
is received.
0: Normal
1: Error
25 digit: Not used (Always 0)
26 digit: A11 output flag
0: OFF
1: ON
0: OFF
1: ON
27 digit: A12 output flag
28 digit: A21 output flag
0: OFF
1: ON
29 digit: A22 output flag
0: OFF
1: ON
0: Turbidity/SS Display Mode
210 digit: Unit status flag
1: Setting mode
211 digit: Turbidity/SS Sensor calibration status flag
0: Turbidity/SS Display Mode
1: Turbidity/SS Sensor calibration mode
212, 213 digit: Zero, Span output signal adjustment status flag
213
212
Status00Turbidity/SS Display Mode01
Zero output signal adjustment mode
10
Span output signal adjustment mode
214 digit: A1 output
0: OFF
1: ON
215 digit: Change in key operation
0: No
1: Yes50

ShinkoCommand
Type
20H

MODBUS
Function
Code
03H
0091H

Data Item

Data

Status flag 20000 0000 0000 0000
215
to
20
0 digit: During Span output signal adjustment, the Turbidity/SS input
2
value has exceeded the value equivalent to 20.5 mA DC.
0: Normal
1: Error
21 digit: During Zero output signal adjustment, the Turbidity/SS input
value has become lower than the value equivalent to 3.5 mA
DC.
0: Normal
1: Error
22 digit: During calibration, the output signal from the Turbidity/SS
sensor has not reached approx. 2 mA DC.
0: Normal
1: Error
23 digit: After calibration is finished, the output signal from theTurbidity/SS Sensor has not returned to 4 mA DC.
0: Normal
1: Error
24 digit: Calibration complete status flag
0: During Turbidity/SS Sensor calibration or Turbidity/SS
Display Mode
1: Turbidity/SS Sensor calibration complete status
25, 26 digits: Transmission output adjustment status flag
26
25
Status00Turbidity/SS Display Mode01 During Transmission output Zero adjustment
in Transmission output adjustment mode
10 During Transmission output Span adjustment
in Transmission output adjustment mode
27 to 215 digits: Not used (Always 0)51

11.7 Calibration and Transmission Output Adjustment via Communication Command
Turbidity/SS Sensor calibration mode, Zero output signal adjustment mode, Span output signal
adjustment mode and Transmission output adjustment via software communication are described below.

11.7.1 Turbidity/SS Sensor Calibration Mode
Calibrate the Turbidity/SS Sensor following the procedure below.
Step
Operation
1
Clean the body of Turbidity/SS Sensor, particularly its lens(es).
2
Immerse the Turbidity/SS Sensor in the distilled water or ion-exchanged water.
3
Set Data item 0040H (Turbidity/SS Sensor calibration mode) to 0001H.
The unit will proceed to Turbidity/SS Sensor calibration mode. (*)
During the time set in [Calibration wait time], if 211 digit is read at Data item 0081H(Status flag 1), 1 (Turbidity/SS Sensor calibration mode) will be returned.
During the time set in [Calibration wait time], the Turbidity/SS Sensor will adjust to the ambient watertemperature.

After the time set in [Calibration wait time] has elapsed, calibration automaticallystarts.
During calibration, calibration signal output is turned ON for 3 seconds.

4

If calibration signal output is turned from OFF to ON, the Turbidity/SS Sensor will output approx. 2
mA DC of analog signal.

After calibration is complete, calibration signal output is turned OFF.
If 24 digit is read at Data item 0091H (Status flag 2), 1 (Turbidity/SS Sensor calibration
complete status) will be returned.

5

If calibration signal output is turned from ON to OFF, the Turbidity/SS Sensor will return to 4 mA DC
of analog signal.
6

Set Data item 0040H (Turbidity/SS Sensor calibration mode) to 0000H.
The unit will revert to Turbidity/SS Display Mode.
If 211 digit is read at Data item 0081H (Status flag 1), 0 (Turbidity/SS Display Mode) will
be returned.

(*) If Calibration wait time is set to 0 (zero) minutes in [Calibration wait time], immerse the Turbidity/SS Sensor for
5 minutes to adjust to the ambient water temperature, then set Data item 0040H (Turbidity/SS Sensor
calibration mode) to 0001H.
After the unit moves to Turbidity/SS Sensor calibration mode, if Data item 0041H (Calibration signal output) is
set to 0001H, the Turbidity/SS Display (CH1) indicates, and the Setting Display (CH2) indicates.
After that, refer to steps 4 , 5 and 6 .

Error codes during Turbidity/SS Sensor calibration are shown below.
To release the error code, set Data item 0040H (Turbidity/SS Sensor calibration mode) to 0000H.
The unit will revert to Turbidity/SS Display Mode.
During calibration, if output signal from the Turbidity/SS Sensor has not reached approx.
2 mA DC (*), and if 22 digit is read at Data item 0091H (Status flag 2), 1 (Error) will be returned.
(*) Before calibration signal output is turned from ON to OFF, if output signal from the Turbidity/SS Sensor iswithin 1 to 3 mA DC, it is regarded as normal. If output signal is outside the range, it is regarded as an error.

After calibration is complete, if output signal from the Turbidity/SS Sensor has not returned to
4 mA DC (*), and if 23 digit is read at Data item 0091H (Status flag 2), 1 (Error) will be returned.
(*) 5 seconds after calibration signal output is turned from ON to OFF, if the output signal from the Turbidity/SS
Sensor is within 3.5 to 4.5 mA DC, it is regarded as normal. If the output signal is outside the range, it isregarded as an error.

52

Error codes in Turbidity/SS Display Mode are shown below.
In Turbidity/SS Display Mode, if Data item 0041H (Calibration signal output) is set to 0001H,
Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, MODBUS protocol) will be
returned.
If 0001H (Lock 1), 0002H (Lock 2) or 0003H (Lock 3) is selected at Data item 0030H (Set valuelock), and if Data items 0040H (Turbidity/SS Sensor calibration mode) and 0041H (Calibration
signal output) are set to 0001H, Error code 4 (34H, Shinko protocol) or Exception code 17 (11H,
MODBUS protocol) will be returned.

11.7.2 Zero and Span Output Signal Adjustment Modes

Caution• Be sure to calibrate Turbidity/SS Sensor before adjusting Zero and Span output signals.
• Be sure to adjust Span output signal after Zero output signal is adjusted.
Adjust Zero and Span output signals following the procedure below.
Step
Operation
1
Clean the body of Turbidity/SS Sensor, particularly its lens(es).
2
Immerse the Turbidity/SS Sensor in the distilled water or ion-exchanged water.
3
Set Data item 0042H (Output signal adjustment mode) to 0001H.
The unit will proceed to Zero output signal adjustment mode.
During Zero output signal adjustment, if 213, 212 digits are read at Data item 0081H(Status flag 1), 01 (Zero Output Signal Adjustment mode) will be returned.
4
After the Turbidity/SS Sensor has adjusted to the ambient water temperature forapprox. 5 minutes, check the Turbidity/SS input value at Data item 0080H (Turbidity/SS
input value).
5
If the Turbidity/SS input value is not 0 (zero), set the Zero output signal adjustment
value at Data item 0043H (Zero output signal adjustment value).
Setting range of Zero output signal adjustment value: 5% of measurement span
6
Check the Turbidity/SS input value at Data item 0080H (Turbidity/SS input value) again.
If the Turbidity/SS input value is not 0 (zero), return to Step 5 .
If the Turbidity/SS input value is 0 (zero), Zero output signal adjustment is completed.
7
In Zero output signal adjustment mode, set Data item 0042H (Output signal adjustmentmode) to 0002H.
The unit will proceed to Span output signal adjustment mode.
During Span output signal adjustment, if 213, 212 digits are read at Data item 0081H(Status flag 1), 10 (Span output signal adjustment mode) will be returned.
8
Block the light beam between the lenses of the sensor for more than 30 seconds.
[Be careful not to touch the lens(es).]
Check the Turbidity/SS input value at Data item 0080H (Turbidity/SS input value).
9
If the Turbidity/SS input value is not the Measurement range high limit value, set theSpan output signal adjustment value at Data item 0044H (Span output signal
adjustment value).
Setting range of Span output signal adjustment value: 5% of measurement span
10
Check the Turbidity/SS input value at Data item 0080H (Turbidity/SS input value) again.
If the Turbidity/SS input value is not the Measurement range high limit value, return toStep 9 .
If the Turbidity/SS input value is the Measurement range high limit value, Span output
signal adjustment is completed.
11
Set Data item 0042H (Output signal adjustment mode) to 0000H.
The unit will return to Turbidity/SS Display Mode.
If 213, 212 digits are read at Data item 0081H (Status flag 1), 00 (Turbidity/SS DisplayMode) will be returned.

53

Error codes during Zero and Span output signal adjustments are shown below.
During Zero output signal adjustment, when Turbidity/SS input value has become lower than thevalue equivalent to 3.5 mA DC, and if 21 digit is read at Data item 0091H (Status flag 2), Error
code 1 (Error) will be returned.
To release the error code, set Data item 0042H (Output signal adjustment mode) to 0000H or
0002H.
The unit will return to Turbidity/SS Display Mode.
During Span output signal adjustment, when Turbidity/SS input value has exceeded the value
equivalent to 20.5 mA DC, and if 20 digit is read at Data item 0091H (Status flag 2), Error code 1(Error) will be returned.
To release the error code, set Data item 0042H (Output signal adjustment mode) to 0000H.
The unit will return to Turbidity/SS Display Mode.
Error codes in Turbidity/SS Display Mode are shown below.
In Turbidity/SS Display Mode, if Zero or Span output signal adjustment value is set at Data items
0043H (Zero output signal adjustment value) or 0044H (Span output signal adjustment value),
Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, MODBUS protocol) will be
returned.
If 0001H (Lock 1), 0002H (Lock 2) or 0003H (Lock 3) is selected at Data item 0030H (Set valuelock), and if Zero or Span output signal adjustment value is set at Data items 0043H (Zero output
signal adjustment value) or 0044H (Span output signal adjustment value), Error code 4 (34H,
Shinko protocol) or Exception code 17 (11H, MODBUS protocol) will be returned.

11.7.3 Transmission Output Adjustment Mode
Fine adjustment of Transmission output is performed.
WIL-101-TU is adjusted at the factory, however, differences may occur between the indication
value of the connected equipment (recorders, etc.) and the output value of this unit.
In this case, perform Transmission output Zero adjustment and Span adjustment.
The following outlines the procedure for Transmission output adjustment.
(1) Set Data item 0126H (Transmission output adjustment mode) to 0001H.
The unit moves to Transmission output Zero adjustment mode.
If 26, 25 digits are read at Data item 0091H (Status flag 2), 01 (During Transmission output Zeroadjustment in Transmission output adjustment mode) will be returned.
(2) Set Transmission output Zero adjustment value at Data item 0127H (Transmission output Zeroadjustment value), while viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output span(3) Set Data item 0126H (Transmission output adjustment mode) to 0002H.
The unit moves to Transmission output Span adjustment mode.
If 26, 25 digits are read at Data item 0091H (Status flag 2), 10 (During Transmission output Spanadjustment in Transmission output adjustment mode) will be returned.
(4) Set Transmission output Span adjustment value at Data item 0128H (Transmission output Spanadjustment value), while viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output span(5) Repeat steps (1) to (4) if necessary.
(6) Set Data item 0126H (Transmission output adjustment mode) to 0000H.
The unit reverts to Turbidity/SS Display Mode.

54

11.8 Notes on Programming Monitoring Software
11.8.1 How to Speed up the Scan Time
When monitoring multiple units of the WIL-101-TU, set the program so that the requisite minimum
pieces of data such as Data item 0080H (Turbidity/SS input value), Data item 0081H (Status flag1), Data item 0091H (Status flag 2) can be read. For other data, set the program so that they canbe read only when their set value has been changed. This will speed up the scan time.

11.8.2 How to Read the Set Value Changes Made by Front Keypad Operation
If any set value is changed by keypad operation, the instrument sets [0081H (Status flag 1) 215:
Change in key operation] to 1 (Yes).
There are 2 methods of reading the set value changes made by the front keypad:(1) Reading Method 1
1 On the monitoring software side, check that [0081H (Status flag 1) 215: Change in key
operation] has been set to 1 (Yes), then read all set values.
2

Clear [0081H (Status flag 1) 215: Change in key operation], by setting Data item 007FH(Key operation change flag clearing) to 0001H (Clear change flag).
If 007FH (Key operation change flag clearing) is set to 0001H (Clear change flag) during
setting mode of the instrument, Error code 5 (35H, Shinko protocol) or Exception Code 18(12H, MODBUS protocol) will be returned as a negative acknowledgement. And [0081H(Status flag 1) 215: Change in key operation] cannot be cleared.
Set the program so that all set values can be read when a negative acknowledgement isreturned.
3 Read all set values again after acknowledgement is returned.
(2) Reading Method 2
1 On the monitoring software side, check that [0081H (Status flag 1) 215: Change in key
operation] has been set to 1 (Yes), then set Data item 007FH (Key operation change flagclearing) to 0001H (Clear change flag).
2

Set the program depending on the acknowledgement or negative acknowledgement asfollows.
When acknowledgement is returned:
Consider it as settings completed, and read all set values.
When Error code 5 (35H, Shinko protocol) or Exception code 18 (12H, MODBUS
protocol) is returned as a negative acknowledgement:
Consider it as still in setting mode, and read the requisite minimum pieces of data such as
0080H (Turbidity/SS input value), 0081H (Status flag 1), 0091H (Status flag 2), then returnto step 1 .

Thus, programs which do not affect the scan time can be created using the methods describedabove, even if set values on the monitoring software will not be updated until settings arecomplete.

11.8.3 Note when Sending All Set Values at One Time• When A11, A12, A21 or A22 type is changed at Data item 0005H (A11 type), 0050H (A12 type),
0051H (A21 type) or 0052H (A22 type), the A11, A12, A21 or A22 value will default to 0 (zero).
The A11, A12, A21 or A22 output status will also be initialized.
First, send the A11, A12, A21, A22 type, then send the A11, A12, A21, A22 value at Data item
0006H (A11 value), 0053H (A12 value), 0054H (A21 value) and 0055H (A22 value).

55

12. Specifications
12.1 Standard Specifications
RatingRated scale
Input
Turbidity (*1)
SS

Measurement Range
0.0 to 100.0 (Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin) (*2)

Resolution
0.1 (Formazin)
1 (Formazin)
1 mg/L (Kaolin)
10 mg/L (Kaolin)(*1) Changeable from Formazin to Kaolin in [Measurement unit].
(*2) The ones digit of the current Turbidity/SS input value is rounded off, and is divided
by 10. This value is indicated as an input value.

Input
Name
Turbidity Sensor
SS Sensor

Manufacturer
OPTEX Co., Ltd.
OPTEX Co., Ltd.

Model
TC-100, TC-500, TC-3000
TCS-1000(E), TS-MxS-A

Model
Power supply
voltageAllowable voltage
fluctuation range

WIL-101-TU
100 to 240 V AC 50/60 Hz

WIL-101-TU 1
24 V AC/DC 50/60 Hz

85 to 264 V AC

20 to 28 V AC/DCPower supply voltage

General Structure
External dimensions
Mounting
Case
Panel
Indication structure

30 x 88 x 108 mm (W x H x D, including socket)
DIN rail
Material: Flame-resistant resin, Color: Light gray
Membrane sheet
Display
Turbidity/SS Display
Red LED 4-digits, character size 10 x 4.6 mm(CH1)(H x W)
Red LED 4-digits, character size 10 x 4.6 mm
Setting Display (CH2)(H x W)
Action indicators
PWR (Yellow)
A1 (Red)Instrument power ON: Lit
A1 output (Contact output 1) ON: Lit
Serial communication TX output (transmitting):
Lit

T/R (Yellow)
Setting structure
Indication Performance
Repeatability
Linearity
Input sampling period
Time accuracy

Setting method: Input system using membrane sheet key

0.2% of measurement span
0.2% of measurement span
500 msWithin 1% of setting time56

1 digit (excluding sensor accuracy)
1 digit (excluding sensor accuracy)

Standard Functions
Turbidity/SS Sensor
calibration
Zero output signal
adjustment

Span output signal
adjustment
Turbidity/SS inputs formoving average

Immerse the Turbidity/SS Sensor in the distilled water or ion-exchanged
water, then calibration is automatically performed after the time set in[Calibration wait time] has elapsed.
Immerse the Turbidity/SS Sensor in the distilled water or ion-exchanged
water. Approximately 5 minutes after the Turbidity/SS Sensor has adjusted
to the ambient water temperature, adjust the Turbidity/SS input value by
setting Zero output signal adjustment value so that the Turbidity/SS input
value becomes 0 (zero).
Block the light beam between the lenses of the sensor for more than 30
seconds. Adjust the Turbidity/SS input value by setting Span output signal
adjustment value so that the Turbidity/SS input value becomesmeasurement range high limit value.
Sets the number of Turbidity/SS inputs used to obtain moving average.
An average value will be obtained every time sampling occurs.(Fig. 12.1-1)
This function is disabled in Turbidity/SS Sensor calibration mode, Zerooutput signal adjustment mode and Span output signal adjustment mode.
Average value (moving average for N times)
is used as a measured value.

Moving average for N times

1st
input value

2nd
input value

3rd
input value

1st
input value

2nd
input value(N-2)thinput value

3rd
input value(N-1)thinput value

Nthinput value(N-2)thinput value(N-1)thinput value

Nthinput value

For the next sampling, the 1st input value from the last previous sampling
is discarded, and a new input value is added, from which an average value
is calculated. This is used as a measured value.

Serial communication

Cable length
Communication line
Communication method
Communication speed
Synchronization method
Code form
Communication protocol
Data Bit/Parity
Stop Bit
Error Correction
Error Detection
Data format(Fig 12.1-1)
The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of the Turbidity/SS input value and status(3) Function change, adjustment(4) Reading and setting of user save area
1.2 km (Max.), Cable resistance: Within 50(Terminators are notminimum on both sides.)necessary, but if used, use 120
EIA RS-485
Half-duplex communication
9600, 19200, 38400 bps (Selectable by keypad.)Start-stop synchronization
ASCII, Binary
Shinko protocol, MODBUS ASCII, MODBUS RTU (Selectable by keypad.)
8 bits/No parity, 7 bits/No parity, 8 bits/Even, 7 bits/Even,
8 bits/Odd, 7 bits/Odd (Selectable by keypad.)1, 2 (Selectable by keypad)
Command request repeat system
Parity check, Checksum (Shinko protocol), LRC (MODBUS protocol ASCII),
CRC-16 (MODBUS protocol RTU)
Communication
ProtocolShinkoProtocolStart bit
Data bit

1
7

ParityEven

Stop bit

1

57

MODBUS ASCII1
7 (8)Selectable
Even (No parity, Odd)
Selectable
1 (2)Selectable

MODBUS RTU

1
8
No parity (Even, Odd)
Selectable
1 (2)SelectableInsulation / Dielectric Strength
Circuit insulation
configuration

Power supply

Self-check input

Electrically insulated

Turbidity/SS input

A1 output
orTransmission output

Calibration signal output

Serial communication
CPU: When the corresponding option is ordered.

Dielectric strength㻌

Attached Functions
Set value lockTurbidity/SS input
sensor correction

Outsidemeasurement range

Power failurecountermeasureSelf-diagnosis

Insulation resistance: 10 M minimum, at 500 V DC
Between power terminal - ground (GND): 1.5 kV AC for 1 minuteBetween input terminal - ground (GND): 1.5 kV AC for 1 minuteBetween input terminal - power terminal: 1.5 kV AC for 1 minute㻌(Lock 1): None of the set values can be changed.
(Lock 2): Only A11, A12, A21, A22 values can be changed.
(Lock 3): All set values – except Measurement range, Measurement
unit, Span setting, Zero and Span output signal adjustments,
Turbidity/SS Sensor calibration, Transmission output Zero andSpan adjustments – can be temporarily changed. However,they revert to their previous value after the power is turned off
because they are not saved in the non-volatile IC memory.
This corrects the input value from the Turbidity/SS Sensor. When a sensor
cannot be set at the exact location where measurement is desired,turbidity/SS input value measured by the sensor may deviate from the value
in the measured location.
In this case, desired Turbidity/SS input value can be obtained by adding asensor correction value. However, it is only effective within the measurement
range regardless of the sensor correction value.
Setting range: 10% of measurement span
When Turbidity/SS input value is outside the measurement range,
the following will be indicated.
Turbidity/SS Display (CH1)
Setting Display (CH2)
When Turbidity/SS input value has exceeded
flashes.
the value equivalent to 20.5 mA DC, thevalue equivalent to 20.5 mA DC flashes.
When Turbidity/SS input value has become
flashes.
lower than the value equivalent to 3.5 mA
DC, the value equivalent to 3.5 mA DC
flashes.
The setting data is backed up in the non-volatile IC memory.
The CPU is monitored by a watchdog timer, and if an abnormal status
occurs, the WIL-101-TU is switched to warm-up status.

58Warm-up indication

Display sleep
function

Auto-light function

Other
Power consumption㻌
Ambient
temperature㻌
Ambient humidity 㻌
Weight㻌Accessories
included㻌
Accessories soldseparately

For approx. 4 seconds after the power is switched ON, an input type is indicatedon the Turbidity/SS Display (CH1).
During this time, all outputs are in OFF status, and LED indicators – except
the Setting Display (CH2) and PWR indicator – turn off.
Measurement Range
Turbidity/SS Display (CH1)
0.0 to 100.0 (Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin)
If any item other than ’No indication’ is selected in [Display selection (p.30)],and if indication time is set, the display (no operation status) becomes unlit
after the indication time has passed.
By pressing any key, the display re-lights.
If the indication time is set to 0 (zero), the display remains lit, and this function
does not work.
Automatically measures and controls brightness of the Turbidity/SS Display(CH1), Setting Display (CH2) and action indicators.

Approx. 7 VA㻌
0 to 50 㻌
35 to 85 %RH (non-condensing)㻌
Approx. 200 g (including socket)㻌
Instruction manual: 1 copy
Unit label: 1 sheet
Inspection report: 1 sheet
㻿ocket: ASK-001-1 (Finger-safe, Ring terminals unusable)
Power Supply (Recommended):
12 V DC: S8VS-01512 (Made by OMRON Corporation.)
24 V DC: S8VS-01524 ((Made by OMRON Corporation.)5912.2 Optional Specifications
Output (Option Code: EVT)A
A
outputvalue, the A
output will be
If Turbidity/SS input value exceeds the A
turned ON for each A
output type.
output status can be read via
Regardless of options being ordered, A
Status flag 1 (A11, A12, A21, A22 output flag bit) in Serial communication.
A
output status, when input errors occur, differs depending on theoutput when input errors occur (p.19)] as follows:
selections in [A(Disabled) is selected, the A
output and A
output status• Ifwill be turned OFF if input errors occur.
(Enabled) is selected, the A
output and A
output status• Ifwill be maintained if input errors occur.
Setting range
Action㻌AON side,AOFF side㻌A
High/Low
limits independent
upper side value,A
High/Low
limits independent
lower side valueAAhysteresis㻌

type

Output㻌Measurement range low limit to
Measurement range high limit (*1)(*2)
ON/OFF action㻌
10% of measurement span (*1)(*3)㻌
Measurement range low limit to
Measurement range high limit (*1)(*2)
Disabled when set to 0 or 0.0.
0.1 to 10% of measurement span (*1)(*3)㻌
One type can be selected from the following withthe keypad.
• No action• Turbidity/SS input low limit action• Turbidity/SS input high limit action• Error output• Fail output• Turbidity/SS input High/Low limits independentactionRelay contact, 1a
Control
3 A 250 V AC (Resistive load)
capacity
1 A 250 V AC (Inductive loadcos =0.4)
Electrical
100,000 cycles
life
㻌

A
A

ON delay time 0 to 9999 seconds
OFF delay time㻌 0 to 9999 seconds

For A1 output, A11 type, A12 type, A21 typeA1 output allocation and/or A22 type are allocated.
Output is OR output.
Output ON time/
If Output ON time and OFF time are set, A1 output
OFF time whencan be turned ON/OFF in a configured cycle whenA1 output ON
A1 output is ON.
(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range
high limit value will become the value set in [Span setting].
(*3) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span
will become the value set in [Span setting].

60

Transmission Output (Option Code: TA)
Transmission output

Converting Turbidity/SS input value to analog signal every input sampling
period, and outputs the value in current.
If Transmission output high limit and low limit are set to the same value,
Transmission output will be fixed at 4 mA DC.
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max. 550 )Output accuracy
Within 0.3% of Transmission output span61

13. Troubleshooting
If any malfunction occurs, refer to the following items after checking that power is being supplied to theWIL-101-TU.
13.1 Error Codes(Table13.1-1)
Error
Code

Error
Type
Fail
Fail
Error
Error

Fail

Occurrence

Error Contents
When Self-check output from the Turbidity/SS Sensor isreceived.
Analog signal (+ white, – black) cable of the Turbidity/SS
Sensor is disconnected or short-circuited.
Turbidity/SS input value has exceeded the value equivalent
to 20.5 mA DC.
Turbidity/SS input value has become lower than the value
equivalent to 3.5 mA DC.
During calibration, the output signal from the Turbidity/SS
Sensor does not reach approx. 2 mA DC.
(Before calibration signal output is turned from ON to OFF, if the output
signal from the Turbidity/SS Sensor is within 1 to 3 mA DC, it isregarded as normal. If the output signal is outside this range, it isregarded as an error.)

After calibration is complete, the output signal from theTurbidity/SS Sensor does not return to 4 mA DC.
Fail

Error
Error

When
measuringWhencalibrating(Approximately 5 seconds after calibration signal output is turned fromON to OFF, if the output signal from the Turbidity/SS Sensor is within
3.5 to 4.5 mA DC, it is regarded as normal. If the output signal isoutside this range, it is regarded as an error.)

During Span output signal adjustment, the Turbidity/SS input
value has exceeded the value equivalent to 20.5 mA DC.
During Zero output signal adjustment, the Turbidity/SS input
value has become lower than the value equivalent to 3.5 mA
DC.

When
adjusting

13.2 Solutions to Problems
If any malfunction occurs, refer to the following items after checking that power is being supplied to theWIL-101-TU.

13.2.1 Indication
Problem
The Turbidity/SS
Display (CH1) is unlit.

The Turbidity/SS
Display (CH1) is dark.
The Setting Display(CH2) is unlit.
The Setting Display(CH2) flashes [].

Possible Cause
The time set in [Indication time
(p.30)] has elapsed.

(Enabled) is selected in[Auto-light function (p.29)].
oris selected in[Display selection (p.30)].
The Turbidity/SS Sensor ismalfunctioning.
Incorrect wiring of the Turbidity/SS
Sensor cable

62

Solution
If any key is pressed while thedisplay is unlit, it will re-light.
Set the indication time to a suitable
time-frame.
Select(Disabled).
Make a selection except.
and
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.

Problem
The Setting Display(CH2) flashes [The Setting Display(CH2) flashes [The Setting Display(CH2) flashes [The Setting Display(CH2) flashes [The Setting Display(CH2) flashes [].

Possible Cause
Analog signal (+ white, – black) cableof the Turbidity/SS Sensor is
disconnected or short-circuited.
The Turbidity/SS Sensor ismalfunctioning.

].

Incorrect wiring of the Turbidity/SS
Sensor cable
The Turbidity/SS Sensor ismalfunctioning.

].

Incorrect wiring of the Turbidity/SS
Sensor cable
The Turbidity/SS Sensor ismalfunctioning.

].

Incorrect wiring of the Turbidity/SS
Sensor cable
The Turbidity/SS Sensor ismalfunctioning.

].

Incorrect wiring of the Turbidity/SS
Sensor cable
The light beam between the lenses
has not been completely blocked.

The Turbidity/SS
Display (CH1) indicates[] andTurbidity/SS input value
alternately.
The Turbidity/SS Sensor ismalfunctioning.

Incorrect wiring of the Turbidity/SS
Sensor cable
The lens(es) of the Turbidity/SS
Sensor is not clean.

The Turbidity/SS
Display (CH1) indicates[] andTurbidity/SS input value The Turbidity/SS Sensor isalternately.
malfunctioning.

The Turbidity/SS
Display (CH1) indicates[].

Incorrect wiring of the Turbidity/SS
Sensor cable
Internal memory is defective.

63

Solution
Check the Turbidity/SS Sensor
cable.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
Make sure the light beam iscompletely blocked for more than
30 seconds, then adjust Span
output signal again.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
Clean the lens(es) of Turbidity/SS
Sensor, then adjust Zero output
signal again.
It is necessary to repair the
Turbidity/SS Sensor.
Contact our agency or us.
Wire it correctly.
Contact our agency or us.

13.2.2 Key Operation
Problem• None of the values
can be changed.
• The values do not,change bykeys.
• Only A
value canbe set. Other settings
are impossible.
• The values do notchange by,keys.
Unable to enter
Turbidity/SS Sensor
calibration mode,
Zero output signal
adjustment mode orSpan output signal
adjustment mode.

Possible Cause“(Lock 1)” is selected in [Setvalue lock (p.28)].

SelectSolution(Unlock).

(Lock 2)” is selected in [Set Select“value lock (p.28)].

(Unlock).

(Lock 1),
(Lock 2) or Select(Lock 3) is selected in [Setvalue lock (p.28)].

(Unlock).

13.2.3 Communication
Check that power is being supplied to the master and slave that customers use.
If communication failure still occurs, check the following.
ProblemPossible Cause
Solution
Communication cable is not securely Check the communication cableCommunication failure
connected, or is disconnected/defective.
and the connector.
Incorrect wiring of the communication Check the communication cable
cable and/or connector
and the connector.
Imperfect contact between the communication cable and the connector,
or between the communication
connector and instrument port
Communication speed of the slave
does not match that of the master.

Check the communication cableand the connector.

The instrument number (address) of
the slave does not correspond tothat of the command.
The instrument numbers (addresses)
are duplicated in multiple slaves.

Check the instrument number(address) of the slave and thecommand.
Check that each slave has adifferent instrument number (address).

Set the same communication speed
on the master and the slave.
The data bit, parity and stop bit of the Set the same data bit, parity andmaster do not correspond to those of stop bit on the master and theslave.
the slave.

Make sure that the program is appropriate for the transmission timing.
Although communication A non-existent command code has
is occurring, thebeen sent.
response is negative
The setting command data exceeds
the setting range of the slave.
acknowledgement.

Check the program.
Check the command code.
Check the setting range of theslave.
Check the slave status.

The instrument cannot be set during
Turbidity/SS Sensor calibration mode,
Zero output signal adjustment modeor Span output signal adjustment mode.
The WIL-101-TU is in the front
Return the unit to Turbidity/SS
keypad operation setting mode.
Display Mode.
For all other malfunctions, please contact our main office or dealers.

6414. Character Tables
The following shows our character tables. Use data column for your reference.
Setting Groups
Character

Setting Group
Turbidity/SS Input Function GroupOutput Function Group
Basic Function Group

Turbidity/SS Sensor Calibration Mode
Character
Setting Item, Setting Range
Factory Default
Turbidity/SS Sensor Calibration Mode(*)
After the time set in [Calibration wait time] has elapsed, calibration
automatically starts. During calibration, calibration signal output is turnedon the Turbidity/SS Display (CH1)
ON for 3 seconds, indicatingon the Setting Display (CH2).
and

Data

After Calibration is complete, the calibration signal output is turned
OFF, indicating
on the Turbidity/SS Display (CH1), and
on the Setting Display (CH2).
(*)

and Calibration wait time are alternately displayed.

Zero Output Signal Adjustment Mode
Character
Setting Item, Setting Range
Factory Default[Input value] Zero output signal adjustment value
0.0(*1)
Setting range: 5% of measurement span (*2)

Data

(*1)
and Zero output signal adjustment value are alternately displayed.
(*2) The measurement unit and decimal point place follow the measurement range.

Span Output Signal Adjustment Mode
Character
Setting Item, Setting Range
Factory Default[Input value] Span output signal adjustment value
0.0(*1)
Setting range: 5% of measurement span (*2)

Data

(*1)
and Span output signal adjustment value are alternately displayed.
(*2) The measurement unit and decimal point place follow the measurement range.

Transmission Output Adjustment Mode
Character
Setting Item, Setting Range
Factory Default
0.00%
Transmission output Zero adjustment
value
Setting range: 5.00% of Transmission output span
0.00%
Transmission output Span adjustment
value
Setting range: 5.00% of Transmission output span

65

Data

Turbidity/SS input Function Group
Character
Setting Item, Setting Range
Measurement range
Selection

Measurement Range
0.0 to 100.0(Formazin)
0 to 500(Formazin)
0 to 3000(Formazin)
0 to 1000 mg/L (Kaolin)
0 to 50000 mg/L (Kaolin) (*)

Factory Default
0.0 to 100.0 (Formazin)

Data

Model
Turbidity Sensor TC-100
Turbidity Sensor TC-500
Turbidity Sensor TC-3000
SS Sensor TCS-1000(E)SS Sensor TS-MxS-A

Turbidity/SS inputs for moving average
20
Setting range: 1 to 120
Aoutput when input errors occur
Disabled: Enabled: Disabled
Turbidity/SS input filter time constant
0.0 seconds
Setting range: 0.0 to 10.0 seconds
Turbidity/SS input sensor correction
0.0
Setting range: 10% of measurement span (*2)
Calibration wait time
1 minute
Setting range: 0 to 10 minutes
Measurement unit
Formazin: Formazin: Kaolin (mg/L)
Span setting
100.0 (Formazin)
Setting range: See (Table 14-1).
(*1) The measurement range of the SS Sensor TS-MxS-A is 0 to 50000 mg/L (Kaolin).
As the Turbidity/SS Display (CH1) has 4 digits, the value 10000 mg/L or higher cannot be indicated.
Therefore, the ones digit of current Turbidity/SS input value is rounded off, divided by 10, and then indicated.
(e.g.) 25004 mg/L (Kaolin): Indicated as 2500.
25005 mg/L (Kaolin): Indicated as 2501.
(*2) The measurement unit and decimal point place follow the measurement range.
If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value
set in [Span setting].

(Table 14-1)
Measurement Range
Measurement Unit
0.0 to 100.0 (Formazin) Kaolin (mg/L)
0 to 500 (Formazin )0 to 3000 (Formazin)
Measurement ranges and units except theabove.

Setting Range
0.0 to 900.0 (Formazin)
0 to 9000 (Formazin)
0 to 9000 (Formazin)
0.0 to 900.0 (Formazin)This setting item is notindicated.

66

Factory Default
100.0 (Formazin)
500 (Formazin)
3000 (Formazin)
100.0 (Formazin)Output Function Group
Character
Setting Item, Setting Range
Factory Default
A11 type
No action: No action: Turbidity/SS input low limit action: Turbidity/SS input high limit action: Error output: Fail output: Turbidity/SS input High/Low limits independent action
A12 type
No action
Selection item: Same as those of A11 type
A21 type
No action
Selection item: Same as those of A11 type
A22 type
No action
Selection item: Same as those of A11 typeA11 value
0.0 (Formazin)
Setting range: Measurement range low limit to
Measurement range high limit (*1)(*2)
A12 value
0.0 (Formazin)
Setting range: Measurement range low limit to
Measurement range high limit (*1)(*2)
A21 value
0.0 (Formazin)
Setting range: Measurement range low limit to
Measurement range high limit (*1)(*2)
A22 value
0.0 (Formazin)
Setting range: Measurement range low limit to
Measurement range high limit (*1)(*2)
A11 hysteresis type
Reference Value: Medium Value: Reference Value
A11 ON side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A11 OFF side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A12 hysteresis type
Reference Value: Medium Value: Reference Value
A12 ON side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A12 OFF side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A21 hysteresis type
Reference Value: Medium Value: Reference Value
A21 ON side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A21 OFF side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A22 hysteresis type
Reference Value: Medium Value: Reference Value

Data(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will
become the value set in [Span setting].
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value(*3) If
set in [Span setting].

67

Character

Setting Item, Setting Range
Factory Default
A22 ON side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A22 OFF side
1.0 (Formazin)
Setting range: 10% of measurement span (*1)(*3)
A11 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A12 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A21 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A22 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A11 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A12 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A21 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A22 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A11 High/Low limits independent lower side value
0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A12 High/Low limits independent lower side value
0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A21 High/Low limits independent lower side value
0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A22 High/Low limits independent lower side value
0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A11 High/Low limits independent upper side value
0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A12 High/Low limits independent upper side value 0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A21 High/Low limits independent upper side value 0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A22 High/Low limits independent upper side value 0.0 (Formazin)
Setting range: Measurement range low limit to high limit (*1)(*2)
A11 hysteresis
1.0 (Formazin)
Setting range: 0.1 to 10% of measurement span (*1)(*3)
A12 hysteresis
1.0 (Formazin)
Setting range: 0.1 to 10% of measurement span (*1)(*3)
A21 hysteresis
1.0 (Formazin)
Setting range: 0.1 to 10% of measurement span (*1)(*3)
A22 hysteresis
1.0 (Formazin)
Setting range: 0.1 to 10% of measurement span (*1)(*3)

Data(*1) The measurement unit and decimal point place follow the measurement range.
(*2) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will
become the value set in [Span setting].
(*3) If[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement span will become the value
set in [Span setting].

68Basic Function Group
Character
Setting Item, Setting Range
Factory Default
Set value lock
Unlock: Unlock: Lock 1: Lock 2: Lock 3
Communication protocol
Shinko protocol: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number
0
Setting range: 0 to 95
Communication speed
9600 bps: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bit/Even: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit: 1 bit: 2 bits
Transmission output high limit
100.0 (Formazin)
Setting range: Transmission output low limit to
Measurement range high limit (*1)(*2)
Transmission output low limit
0.0 (Formazin)
Setting range: Measurement range low limit toTransmission output high limit (*1)
Transmission output status

Last value HOLD
when calibrating: Last value HOLD (Retains the last value before calibration,and outputs it.): Set value HOLD (Outputs the value set in [Transmission output
value HOLD when calibrating].): Measured value (Outputs the measured value when calibrating.)
Transmission output value HOLD
0.0 (Formazin)
when calibrating
Setting range: Measurement range low limit to high limit (*1)(*2)
Transmission output status

Last value HOLD
when adjusting output signal: Last value HOLD (Retains the last value before the output
signal adjustment, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output
value HOLD when adjusting output signal].): Measured value (Outputs the measured value when adjusting
output signal.)
Transmission output value HOLD
0.0 (Formazin)
when adjusting output signal
Setting range: Measurement range low limit to high limit (*1)(*2)

Data(*1) The measurement unit and decimal point place follow the measurement range.
[Kaolin (mg/L)] is selected in [Measurement unit], the Measurement range high limit value will become(*2) If
the value set in [Span setting].

69

Character

Setting Item, Setting Range
Factory Default
Auto-light function
Disabled: Disabled: Enabled
Turbidity/SS Display (CH1):
Display selection
Turbidity/SS input value
Setting Display (CH2): No indication
Item

Turbidity/SS Display (CH1)
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
Turbidity/SS input value
No indication

Setting Display (CH2)
No indication
A11 valueA12 value
A21 value
A22 value
No indication

Indication time
00.00
Setting range: 00.00 (Remains lit)
00.01 to 60.00 (Minutes.Seconds)
A1 output allocation
A11 type: A11 type
: A12 type
: A21 type
: A22 type
: A11, A12 types: A21, A22 types: A11, A21 types: A12, A22 types: A11, A12, A21, A22 types
Output ON time when A1 output ON
0 seconds
Setting range: 0 to 9999 seconds
Output OFF time when A1 output ON
0 seconds
Setting range: 0 to 9999 seconds

70

Data

71

***** Inquiries *****For any inquiries about this unit, please contact our agency or thevendor where you purchased the unit after checking the following.
[Example]• Model--------------------------- WIL-101-TU• Serial number----------------- No. 194F05000

In addition to the above, please let us know the details of themalfunction, or discrepancy, and the operating conditions.

SHINKO TECHNOS CO., LTD.
OVERSEAS DIVISION
Head Office : 2-5-1, Senbahigashi, Minoo, Osaka, Japan
http://www.shinko-technos.co.jp/e/Tel : +81-72-727-6100
overseas@shinko-technos.co.jp
Fax: +81-72-727-7006

URL:
E-mail:No. WIL11CTUE3 2019.11