AER-102-DO (C5)COMMUNICATION INSTRUCTION MANUAL

No. AER1CDOE3 2019.08
This manual contains instructions for communication functions of the AER-102-DO.
To prevent accidents arising from the misuse of this instrument, please ensure the operator receives thismanual.

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.

1. System Configuration
System configuration example using Communication converter IF-400 and USB communication
cable CMC-001-1
When using Communication converter IF-400

Host computer

Communication converter
IF-400 (sold separately)
RS-232C
RS-485
AER-102-DO
No. 0

No. 1

No. 30(Fig. 1-1)
When using USB communication cable CMC-001-1
Host computer
USB communication cable
CMC-001-1 (sold separately)USB
RS-485

AER-102-DO
No. 0(Fig. 1-2)
1

No. 1

No. 302. Wiring
Wiring example using Communication converter IF-400 and USB communication cable CMC-001-1
When using communication converter IF-400, use the provided wire harness (C0J: Between IF-400 and
AER-102-DO, C5J: Between AER-102-DO units), shield wire and CDM (sold separately).
When using USB communication cable CMC-001-1, use the provided wire harness (C0J: Between
IF-400 and AER-102-DO, C5J: Between AER-102-DO units).
• When using communication converter IF-400• When using USB communication cable CMC-001-1

Communication converter
IF-400(sold separately)

Host computer

Shieldwire

Host computerFG
USB communication
cable CMC-001-1(sold separately)

Terminal block (commercially available)
is used to relay CMC-001-1 and C0J.

Terminal block (commercially available)
is used to relay CDM and C0J.
Yellow

Yellow

Blue
Black

Blue
Black

CDM (sold separately)

No. 0

AER-102-DO (Max.31 units)
No. 1

No. 30

C5J

C0J
C5J

2 connecters are wired internally.

(Fig. 2-1)
Shield Wire
Connect only one end of the shield to the FG to avoid a ground loop. If both ends of the shield wire
are connected to the FG, 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 atwisted pair cable.)2

Terminator (Terminal Resistor)
Communication converter IF-400 (sold separately) has a built-in terminator.
The terminator is mounted at the end of the wire when connecting multiple peripheral devices to apersonal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator to the communication line because each AER-102-DO has built-in
pull-up and pull-down resistors.

3. Setting Communication Parameters
Communication parameters can be set in the Communication Group.
To enter the Communication Group, follow the procedure below.
(1)

Press thekey 6 times in Display Mode or Cleansing Output Mode.
key 8 times
If EVT3, EVT4 outputs (EVT3 option) are ordered, press thein Display Mode or Cleansing Output Mode.

Press thekey.
The unit enters the Communication Group, and “Communication protocol” willappear.
or
key for settings, and register the value with thekey.)(3) Set each item. (Use the(2)Character

Setting Item, Function, Setting Range
Communication protocol• Selects communication protocol.
: Shinko protocol•: MODBUS ASCII mode
: MODBUS RTU mode

Factory Default
Shinko protocol

Instrument number0• Sets the instrument number of this unit. (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(4) Press theData 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

7 bits/Even

Stop bit• Selects the stop bit.
: 1 bit•: 2 bits

1 bit

key. The unit will revert to Display Mode or Cleansing Output Mode.

34. Communication ProcedureCommunication starts with command transmission from the host computer (hereafter Master) andends with the response of the AER-102-DO (hereafter Slave).
MasterCommand
Data

Slave

Command
Acknowledgement
Command
Negative
acknowledgement
Command
No response(Fig. 4-1)

• Response with data
When the master sends the reading command, the slave
responds with the corresponding set value or current status.
• Acknowledgement
When the master sends the setting command, the slave
responds by sending acknowledgement after theprocessing is terminated.
• Negative acknowledgement
When the master sends a non-existent command or value
out of the setting range, the slave returns a negative
acknowledgement.
• No response
The slave will not respond to the master in the following cases:• Global address (Shinko protocol) is set.
• 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 thecommand to ensure synchronization on the receiving side.
Set the program so that the master can disconnect the transmitter from the communication line within a
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.)
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.

4

5. Shinko Protocol

5.1 Transmission Mode
Shinko protocol is composed of ASCII codes.
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
5.2 Command Configuration
All commands are composed of ASCII.
The data (set value, decimal number) is represented by hexadecimal numbers.
Negative numbers are represented in 2's complement.
Numerals written below the command represent number of characters.
(1) Setting Command
Sub
Data
Command
Header
Data
Checksumaddress
Address
item
type (50H)
(02H)
(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 numbers 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 the Global address, which is used when the same command issent to all the slaves connected. However, a response is not returned.
Sub address:
20H fixed.
Command type: Code to discern Setting command (50H) and Reading command (20H)
5

Data item:

Data:

Checksum:
Delimiter:
Error code:

Classification of the command object.
Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to “7. Communication Command Table”. (pp.11 to 20)
The contents of data (set value) differ depending on the setting command.
Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to “7. Communication Command Table”. (pp.11 to 20)
2-character data to detect communication errors.
Refer to “5.3 Checksum Calculation”.
Control code to represent the end of command.
ASCII code ETX (03H) fixed.
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 calibration)
5 (35H)-----During setting mode by keypad operation

5.3 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 from theslaves so that communication errors can be checked.
The ASCII code (hexadecimal) corresponding to the characters which range from the address(instrument number) to that before the checksum is converted to binary notation, and the total value iscalculated.
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
Data item 001BH (EVT1 ON delay time): 100 seconds (0064H)
Address (instrument number): 0 (20H)[e.g.]
Checksum calculation range
STX

P

0

0

1

B

0

0

6

4

D

3

ETX

[Characters above are represented in ASCII.]
02H 20H 20H 50H 30H 30H 31H 42H 30H 30H 36H 34H 44H 33H 03H
Checksum[Binary][Hexadecimal]
20H
0010 0000
20H
0010 0000
50H
0101 0000
30H
0011 0000
30H
0011 0000
31H
0011 0001
42H
0100 0010
30H
0011 0000
30H
0011 0000
36H
0011 0110
0011 0100+ 34H
10 0010 1101

1101

[2’s complement]

1101

0010
1
0011

[Hexadecimal]

D

3[ASCII code]

44H

33H

[1’s complement]+

Checksum(Fig. 5.3-1)
6

6. MODBUS Protocol
6.1 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)6.2 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 AER-102-DO assumes
that transmission from the master is finished, which results in a communication error, and will not
return a response.
6.3 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 for morethan 3.5-character transmissions.
Communication speed 38400 bps: RTU mode is configured to start after idle time is processed formore than 1.75 ms, and end after idle time is processed for more than 1.75 ms.
3.5 idle
characters

Slave
address

Function
code

Error check
CRC-16Data

7

3.5 idle
characters

6.3.1 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.
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 notrespond.
6.3.2 Function CodeThe function code is the command code for the slave to undertake one of the following actions.
(Table 6.3.2-1)
Function CodeContents
03 (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 to the 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 for the
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 6.3.2-2)(Table 6.3.2-2)
Exception CodeContents
1 (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.) Duringcalibration]
18 (12H)
Shinko protocol error code 5 (During setting mode by keypad operation)
6.3.3 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).
6.3.4 Error CheckASCII Mode
After calculating LRC (Longitudinal Redundancy Check) from the slave address to the end of data,
the calculated 8-bit data is converted to two ASCII characters, and are appended to the end of 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.

8

RTU Mode
After calculating CRC-16 (Cyclic Redundancy Check) from the slave address to the end of the data, thecalculated 16-bit data is appended to the end of message in sequence from low order to high order.
How to calculate CRC-16
In the CRC-16 system, the information is divided by the polynomial series. The remainder is added to theend 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 and the fixedvalue (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.
6.4 Message Example
ASCII Mode
Numerals written below the command represent the number of characters.
1

Reading [Slave address 1, Data item 0080H (DO concentration)]• 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 DO concentration is 1.00 mg/L (0064H)]
The response byte count means the byte count of data which have been read. It is fixed as(30H 32H).
Response
Error check Delimiter
Data
Function
Header Slave
byte countLRC
address[0064H]
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 001BH (EVT1 ON delay time)• A request message from the master [When EVT1 ON delay time is set to 100 seconds (0064H)]
Header Slave
Function
Data item
Data
Error check Delimiter
addresscode[001BH][0064H]
LRC(3AH) (30H 31H) (30H 36H) (30H 30H 31H 42H) (30H 30H 36H 34H) (44H 45H) (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[001BH][0064H]
LRC(3AH) (30H 31H) (30H 36H) (30H 30H 31H 42H) (30H 30H 36H 34H) (44H 45H) (0DH 0AH)
1
2
2
4
4
2
2
9

• 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).
Delimiter
Function Exception code Error check
Header Slave
LRC
[03H]
code
address(0DH 0AH)(37H 36H)(3AH) (30H 31H) (38H 36H) (30H 33H)
1
2
2
2
2
2
RTU Mode
Numerals written below the command represent number of characters.
Reading [Slave address 1, Data item 0080H (DO concentration)]• 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 DO concentration is 1.00 mg/L (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 001BH (EVT1 ON delay time)• A request message from the master [When EVT1 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)
(001BH)(0064H)(F826H)
1
1
2
2
2

2

• Response message from the slave in normal status
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(06H)
(001BH)
1
1
2

Data(0064H)
2

Error check
CRC-16(F826H)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

10

7. Communication Command Table
7.1 Note on Setting/Reading Commands• The data (set value, decimal) is converted to hexadecimal numbers.
Negative numbers are 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 asfollows. 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 0001H (Signal output response time) as an example: Data item in the sending message
is 0001H, however, MODBUS protocol Holding Register address is 40002 (1 + 40001).
• Even if EVT3, EVT4 outputs (EVT3 option) are/is not ordered, setting or reading via softwarecommunication will be possible. However, EVT3 and EVT4 command contents 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, do not change the set values
frequently via software communication. (If a value set via software communication is the same as thevalue 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 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 (EVT1, EVT2, EVT3, EVT4 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 EVT type is changed at [0014H (EVT1 type), 0022H (EVT2 type), 0030H (EVT3 type), 003FH (EVT4type], EVT1, EVT2, EVT3 or EVT4 value will default to 0 (zero).
The output status of EVT1, EVT2, EVT3 or EVT4 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. (p.3)• 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, the response 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.

117.2 Setting/Reading Command
Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 0001H Signal output response
time
50H/20H 06H/03H 0003H Salinity correction
50H/20H 06H/03H 0004H Altitude correction
50H
06H
0005H DO concentration
calibration mode

50H

06H

0006H DO concentration
calibration startData
Set value (1 to 120)
‘1’ corresponds to 5 seconds, and‘120’ corresponds to 600 seconds.
Set value
Set value
0000H: Display Mode
0001H: DO concentration 1-pointcalibration mode
0002H: DO concentration 2-pointcalibration mode
0003H: Concentration option calibrationmode
DO concentration 1-point calibration:
0000H: DO concentration 1-pointcalibration mode
0001H: 1-point calibration (100% saturation
calibration) start
0003H: Measured value fixed
DO concentration 2-point calibration:
0000H: DO concentration 2-pointcalibration mode
0001H: 1st-point calibration (100% saturation
calibration) start
0002H: 2nd-point calibration (0-pointcalibration) start
0003H: Measured value fixed

50H/20H
50H/20H

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

Concentration option calibration:
0000H: Concentration option calibration mode
0001H: Concentration option calibration start
0003H: Measured value fixed
06H/03H 0007H Concentration desired value Set value (Decimal point ignored.)
06H/03H 0008H Transmission output 1 type 0000H: DO concentration transmission
0001H: Water temperature transmission
0002H: DO % saturation transmission
0003H: Oxygen partial pressure transmission
0004H: EVT1 MV transmission
0005H: EVT2 MV transmission
0006H: EVT3 MV transmission (*)
0007H: EVT4 MV transmission (*)
06H/03H 0009H Transmission output 1 high limit Set value (Decimal point ignored.)
06H/03H 000AH Transmission output 1 low limit Set value (Decimal point ignored.)
06H/03H 000BH Transmission output 2 type 0000H: DO concentration transmission
0001H: Water temperature transmission
0002H: DO % saturation transmission
0003H: Oxygen partial pressure transmission
0004H: EVT1 MV transmission
0005H: EVT2 MV transmission
0006H: EVT3 MV transmission (*)
0007H: EVT4 MV transmission (*)(*) If ‘Setting’ is executed while EVT3, EVT4 outputs (EVT3 option) is not ordered, the following error code
will be returned.
• Shinko protocol: Error code 3 (33H)• MODBUS: Exception code 3 (03H)

12

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 000CH Transmission output 2 high limit
50H/20H 06H/03H 000DH Transmission output 2 low limit
50H
06H
000EH Transmission output 1 adjustment
mode

50H/20H 06H/03H 000FH Transmission output 1 Zeroadjustment value
50H/20H 06H/03H 0010H Transmission output 1 Spanadjustment value
50H
06H
0011H Transmission output 2 adjustment
mode

Data
Set value (Decimal point ignored.)
Set value (Decimal point ignored.)
0000H: Display Mode
0001H: Transmission output 1 Zeroadjustment mode
0002H: Transmission output 1 Spanadjustment modeSet value (Decimal point ignored.)
Set value (Decimal point ignored.)
0000H: Display Mode
0001H: Transmission output 2 Zeroadjustment mode
0002H: Transmission output 2 Spanadjustment modeSet value (Decimal point ignored.)

50H/20H 06H/03H 0012H Transmission output 2 Zeroadjustment value
50H/20H 06H/03H 0013H Transmission output 2 Span
Set value (Decimal point ignored.)adjustment value
50H/20H 06H/03H 0014H EVT1 type
0000H: No action
0001H: DO concentration input high limit action
0002H: DO concentration input low limit action
0003H: Water temperature input high limit action
0004H: Water temperature input low limit action
0005H: DO % saturation input high limit action
0006H: DO % saturation input low limit action
0007H: Oxygen partial pressure input high limit
action0008H: Oxygen partial pressure input low limit
action0009H: Sensor cap replacement timer
000AH: Cleansing output
000BH: DO concentration input High/Low limits
independent action
000CH: Water temperature input High/Low limits
independent action
000DH: DO % saturation input High/Low limits
independent action
000EH: Oxygen partial pressure input High/Low
limits independent action
50H/20H 06H/03H 0015H EVT1 value
Set value (Decimal point ignored.)
50H/20H 06H/03H 0016H EVT1 proportional bandSet value (Decimal point ignored.)
50H/20H 06H/03H 0017H EVT1 reset
Set value (Decimal point ignored.)
50H/20H 06H/03H 0018H EVT1 hysteresis type
0000H: Medium Value
0001H: Reference Value
50H/20H 06H/03H 0019H EVT1 ON side
Set value (Decimal point ignored.)
50H/20H 06H/03H 001AH EVT1 OFF side
Set value (Decimal point ignored.)
50H/20H 06H/03H 001BH EVT1 ON delay time
Set value
50H/20H 06H/03H 001CH EVT1 OFF delay time
Set value
50H/20H 06H/03H 001DH EVT1 proportional cycle
Set value
50H/20H 06H/03H 001EH EVT1 output high limit
Set value
50H/20H 06H/03H 001FH EVT1 output low limit
Set value
50H/20H 06H/03H 0020H Output ON time when EVT1 output ON Set value
50H/20H 06H/03H 0021H Output OFF time when EVT1 output ON Set value
13

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 0022H EVT2 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

Data

0000H: No action
0001H: DO concentration input high limit action
0002H: DO concentration input low limit action
0003H: Water temperature input high limit action
0004H: Water temperature input low limit action
0005H: DO % saturation input high limit action
0006H: DO % saturation input low limit action
0007H: Oxygen partial pressure input high limit
action0008H: Oxygen partial pressure input low limit
action0009H: Sensor cap replacement timer
000AH: Cleansing output
000BH: DO concentration input High/Low limits
independent action
000CH: Water temperature input High/Low limits
independent action
000DH: DO % saturation input High/Low limits
independent action
000EH: Oxygen partial pressure input High/Low
limits independent action
06H/03H 0023H EVT2 value
Set value (Decimal point ignored.)
06H/03H 0024H EVT2 proportional bandSet value (Decimal point ignored.)
06H/03H 0025H EVT2 reset
Set value (Decimal point ignored.)
06H/03H 0026H EVT2 hysteresis type
0000H: Medium Value
0001H: Reference Value
06H/03H 0027H EVT2 ON side
Set value (Decimal point ignored.)
06H/03H 0028H EVT2 OFF side
Set value (Decimal point ignored.)
06H/03H 0029H EVT2 ON delay time
Set value
06H/03H 002AH EVT2 OFF delay time
Set value
06H/03H 002BH EVT2 proportional cycle
Set value
06H/03H 002CH EVT2 output high limit
Set value
06H/03H 002DH EVT2 output low limit
Set value
06H/03H 002EH Output ON time when EVT2
Set value
output ON
06H/03H 002FH Output OFF time when EVT2
Set value,
output ON

14

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 0030H EVT3 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

Data

0000H: No action
0001H: DO concentration input high limit action
0002H: DO concentration input low limit action
0003H: Water temperature input high limit action
0004H: Water temperature input low limit action
0005H: DO % saturation input high limit action
0006H: DO % saturation input low limit action
0007H: Oxygen partial pressure input high limit
action0008H: Oxygen partial pressure input low limit
action0009H: Sensor cap replacement timer
000AH: Cleansing output
000BH: DO concentration input High/Low limits
independent action
000CH: Water temperature input High/Low limits
independent action
000DH: DO % saturation input High/Low limits
independent action
000EH: Oxygen partial pressure input High/Low
limits independent action
06H/03H 0031H EVT3 value
Set value (Decimal point ignored.)
06H/03H 0032H EVT3 proportional bandSet value (Decimal point ignored.)
06H/03H 0033H EVT3 reset
Set value (Decimal point ignored.)
06H/03H 0034H EVT3 hysteresis type
0000H: Medium Value
0001H: Reference Value
06H/03H 0035H EVT3 ON side
Set value (Decimal point ignored.)
06H/03H 0036H EVT3 OFF side
Set value (Decimal point ignored.)
06H/03H 0037H EVT3 ON delay time
Set value
06H/03H 0038H EVT3 OFF delay time
Set value
06H/03H 0039H EVT3 proportional cycle
Set value
06H/03H 003AH EVT3 output high limit
Set value
06H/03H 003BH EVT3 output low limit
Set value
06H/03H 003CH Output ON time when EVT3
Set value
output ON
06H/03H 003DH Output OFF time when EVT3
Set value,
output ON

15

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 003EH EVT4 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

Data

0000H: No action
0001H: DO concentration input high limit action
0002H: DO concentration input low limit action
0003H: Water temperature input high limit action
0004H: Water temperature input low limit action
0005H: DO % saturation input high limit action
0006H: DO % saturation input low limit action
0007H: Oxygen partial pressure input high limit
action0008H: Oxygen partial pressure input low limit
action0009H: Sensor cap replacement timer
000AH: Cleansing output
000BH: DO concentration input High/Low limits
independent action
000CH: Water temperature input High/Low limits
independent action
000DH: DO % saturation input High/Low limits
independent action
000EH: Oxygen partial pressure input High/Low
limits independent action
06H/03H 003FH EVT4 value
Set value (Decimal point ignored.)
06H/03H 0040H EVT4 proportional bandSet value (Decimal point ignored.)
06H/03H 0041H EVT4 reset
Set value (Decimal point ignored.)
06H/03H 0042H EVT4 hysteresis type
0000H: Medium Value
0001H: Reference Value
06H/03H 0043H EVT4 ON side
Set value (Decimal point ignored.)
06H/03H 0044H EVT4 OFF side
Set value (Decimal point ignored.)
06H/03H 0045H EVT4 ON delay time
Set value
06H/03H 0046H EVT4 OFF delay time
Set value
06H/03H 0047H EVT4 proportional cycle
Set value
06H/03H 0048H EVT4 output high limit
Set value
06H/03H 0049H EVT4 output low limit
Set value
06H/03H 004AH Output ON time when EVT4
Set value
output ON
06H/03H 004BH Output OFF time when EVT4
Set value,
output ON

16

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 0068H Cleansing time
50H/20H 06H/03H 0069H Cleansing inactive interval
50H
06H
006AH Forced cleansing mode
50H/20H 06H/03H 006BH Set value lock50H/20H 06H/03H 006EH Backlight selection

50H/20H 06H/03H 006FH DO color

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

06H/03H 0070H DO color reference value
06H/03H 0071H DO color range
06H/03H 0072H Backlight time
06H/03H 0073H Bar graph indication

50H/20H 06H/03H 0074H EVT output when input errors
occur
50H/20H 06H/03H 0075H Data clear selection
50H

06H

0076H Data clear Stop/Perform

50H/20H 06H/03H 0077H Standby after cleansing
50H
06H
007FH Key operation change flag clearing

17

Data
Set value
Set value
0001H: Forced cleansing mode
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
0000H: All are backlit.
0001H: DO Display is backlit.
0002H: Temperature Display isbacklit.
0003H: Action indicators are backlit.
0004H: DO Display + Temperature
Display are backlit.
0005H: DO Display + Action
indicators are backlit.
0006H: Temperature Display + Action
indicators are backlit.
0000H: Green
0001H: Red
0002H: Orange
0003H: DO color changes
continuously.
Set value (Decimal point ignored.)
Set value (Decimal point ignored.)
Set value
0000H: No indication
0001H: Transmission output 1
0002H: Transmission output 2
0000H: Enabled
0001H: Disabled
0000H: Calibration value
0001H: Set value
0000H: Data clear Stop
0001H: Data clear Perform
Set value
0001H: Clear change flag

Shinko MODBUS
Command Function
Data ItemType
Code
50H/20H 06H/03H 0100H EVT1 High/Low limits independent
lower side value
50H/20H 06H/03H 0101H EVT2 High/Low limits independent
lower side value
50H/20H 06H/03H 0102H EVT3 High/Low limits independent
lower side value
50H/20H 06H/03H 0103H EVT4 High/Low limits independent
lower side value
50H/20H 06H/03H 0106H EVT1 High/Low limits independent
upper side value
50H/20H 06H/03H 0107H EVT2 High/Low limits independent
upper side value
50H/20H 06H/03H 0108H EVT3 High/Low limits independent
upper side value
50H/20H 06H/03H 0109H EVT4 High/Low limits independent
upper side value
50H/20H 06H/03H 010CH EVT1 hysteresis
50H/20H 06H/03H 010DH EVT2 hysteresis
50H/20H 06H/03H 010EH EVT3 hysteresis
50H/20H 06H/03H 010FH EVT4 hysteresis
50H/20H 06H/03H 0112H Transmission output 1 status whencalibrating
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

Data

0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
06H/03H 0113H Transmission output 1 value HOLD Set value (Decimal point ignored.)when calibrating
06H/03H 0114H Transmission output 2 status when 0000H: Last value HOLD
0001H: Set value HOLD
calibrating
0002H: Measured value
06H/03H 0115H Transmission output 2 value HOLD Set value (Decimal point ignored.)when calibrating
06H/03H 0200H User save area 1-32768 to 32767 (8000H to 7FFFH)
06H/03H 0201H User save area 2-32768 to 32767 (8000H to 7FFFH)
06H/03H 0202H User save area 3-32768 to 32767 (8000H to 7FFFH)
06H/03H 0203H User save area 4-32768 to 32767 (8000H to 7FFFH)
06H/03H 0204H User save area 5-32768 to 32767 (8000H to 7FFFH)
06H/03H 0205H User save area 6-32768 to 32767 (8000H to 7FFFH)
06H/03H 0206H User save area 7-32768 to 32767 (8000H to 7FFFH)
06H/03H 0207H User save area 8-32768 to 32767 (8000H to 7FFFH)
06H/03H 0208H User save area 9-32768 to 32767 (8000H to 7FFFH)
06H/03H 0209H User save area 10-32768 to 32767 (8000H to 7FFFH)

18

7.3 Read Only Command
Shinko MODBUS
Command Function
Data Item
Data
Type
Code
20H
03H
0080H DO concentration
DO concentration (Decimal point ignored.)
20H
03H
0081H DO % saturation
DO % saturation (Decimal point ignored.)
20H
03H
0082H Oxygen partial pressure Oxygen partial pressure (Decimal point ignored.)
20H
03H
0083H Status flag 10000 0000 0000 0000
to
20
215
20 digit: Outside measurement range of DO concentration (high limit)
0: Normal
1: Error
21 digit: Outside measurement range of DO concentration (low limit)
0: Normal
1: Error
22 digit: Outside measurement range of DO % saturation (high limit)
0: Normal
1: Error
23 digit: Outside measurement range of DO % saturation (low limit)
0: Normal
1: Error
24 digit: Outside measurement range of Oxygen partial pressure (high limit)
0: Normal
1: Error
25 digit: Outside measurement range of Oxygen partial pressure (low limit)
0: Normal
1: Error
26 digit: Communication errors have occurred or DO Sensor is not connected.
0: Normal
1: Error
27 digit: Sensor cap of DO Sensor is not attached, or it is incorrectly attached.
0: Normal
1: Error
28 digit: Calibration error 0: Normal
1: Error
0: Display Mode 1: Setting mode
29 digit: Unit status flag
210, 211 digits: Calibration mode status flag
211 210
Status0
0 Display Mode0
1 DO concentration 1-point calibration mode
1
0 DO concentration 2-point calibration mode
1
1 Concentration option calibration mode
212, 213 digits: Calibration status flag
213 212
Status00 Standby0
1 During 1st-point calibration (100% saturation
calibration)
1
0 During 2nd-point calibration (0-point calibration)
1
1 During concentration option calibration
214 digit: Normal measurement value cannot be obtained from the DO
Sensor.
0: Normal
1: Error
215 digit: Change in key operation
0: No
1: Yes
20H
20H
20H
20H

03H
03H
03H
03H

0084H EVT1 Manipulated Variable
0085H EVT2 Manipulated Variable
0086H EVT3 Manipulated Variable
0087H EVT4 Manipulated Variable

19

MV (Decimal point ignored.)MV (Decimal point ignored.)MV (Decimal point ignored.)MV (Decimal point ignored.)Shinko MODBUS
Command Function
Data Item
Data
Type
Code
20H
03H
0090H Temperature
Temperature (Decimal point ignored.)
Sensor cap replacement timer
20H
03H
0091H Sensor cap replacement timer
remainder
remaining time
20H
03H
0093H Status flag 20000 0000 0000 0000
to
20
215
0
2 digit: Outside temperature measurement range (high limit)
0: Normal
1: Error
21 digit: Outside temperature measurement range (low limit)
0: Normal
1: Error
22 digit: EVT1 output
0: OFF
1: ON
0: OFF
1: ON
23 digit: EVT2 output
0: OFF
1: ON
24 digit: EVT3 output
25 digit: EVT4 output
0: OFF
1: ON
26, 27 digits: Not used (Always 0)
28, 29 digits: Transmission output 1 adjustment status flag
29 28
Status0
0 Display Mode01 During Transmission output 1 Zero adjustment
in Transmission output 1 adjustment mode
10 During Transmission output 1 Span adjustment
in Transmission output 1 adjustment mode
210, 211 digits: Transmission output 2 adjustment status flag
211 210
Status0
0 Display Mode01 During Transmission output 2 Zero adjustment
in Transmission output 2 adjustment mode
10 During Transmission output 2 Span adjustment
in Transmission output 2 adjustment mode
212, 213 digits: Cleansing status flag
213 212
Status0
0 Display Mode01 During Cleansing inactive interval
10 During Cleansing time1
1 During Standby after cleansing
214 digit: Self-check output 0: OFF
215 digit: Not used (Always 0)

20

1: ON

7.4 DO Concentration Calibration via Communication Command
For DO concentration calibration, there are 3 calibration methods (like a key operation) via softwarecommunication:
DO concentration 1-point calibration mode, DO concentration 2-point calibration mode, Concentration
option calibration mode
7.4.1 Preparation(1) Clean the DO Sensor body and measurement section, and remove all moisture.
(2) Remove the storage cap of the calibration container, and replace with a calibration cap (ventilating
cap).

Calibration cap Storage cap(Fig. 7.4.1-1)(3) Keep the water, used for DO Sensor and calibration, at room temperature for approx. 30 minutes.
(4) Select a mode from Sections 7.4.2 (DO Concentration 1-point Calibration Mode), 7.4.3 (DOConcentration 2-point Calibration Mode), and 7.4.4 (Concentration Option Calibration Mode),and perform calibration.
7.4.2 DO Concentration 1-point Calibration Mode

Caution• If salinity concentration has been previously corrected, return the salinity concentration correction
value to 0 PSU, then start calibration.
[Data item 0003H: Salinity correction].
If calibration is performed with salinity concentration being corrected, an error will occur, or
calibration will not be performed normally.
• When using a sensor in geographically high elevation sites, perform altitude correction for accurate
calibration, then start calibration.
[Data item 0004H: Altitude correction].
The following outlines the calibration procedure.
(1) Pour approx. 10 mL of ion-exchanged water into the calibration container sponge.
(2) Insert the DO Sensor into the calibration container until the measurement section of the sensor
is situated approximately 2 cm away from the sponge.
Approx. 2 cm

(Fig. 7.4.2-1)(3) Allow it to settle, undisturbed, for 5 to 10 minutes.

Caution• Do not leave the sensor attached to the calibration container for more than 30 minutes. This will
result in dew condensation in measurement section, which will affect measurement value.
If dew condensation has occured, remove the moisture from the measurement section, then start
calibration again.
(4) Set Data item 0005H (DO concentration calibration mode) to 0001H.
The unit moves to DO concentration 1-point calibration mode.
If 211, 210 digits are read at Data item 0083H (Status flag 1), 01 (DO concentration 1-point calibrationmode) will be returned.
21

(5) Set Data item 0006H (DO concentration calibration start) to 0001H.
1-point calibration (100% saturation calibration) starts.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 01 [During 1st-point calibration (100%saturation calibration)] will be returned.
(6) Set Data item 0006H (DO concentration calibration start) to 0003H.
The measured value will be fixed, and automatic calibration will be performed.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 00 (Standby) will be returned.
1-point calibration (100% saturation calibration) is completed.
(7) Set Data item 0006H (DO concentration calibration start) to 0000H.
The unit reverts to DO concentration 1-point calibration mode.
(8) Set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
If calibration cannot be performed during 1-point calibration (100% saturation calibration) due to unstable
DO concentration input or temperature correction error, etc., and if 28 digit is read at Data item 0083H(Status flag 1), 1 (Error) will be returned.
To release the error, set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
7.4.3 DO Concentration 2-point Calibration Mode

Caution• When using a sensor in geographically high elevation sites, perform altitude correction for accurate
calibration, then start calibration.
[Data item 0004H: Altitude correction]
The following outlines the calibration procedure.
(1) Pour approx. 10 mL of ion-exchanged water into the calibration container sponge.
(2) Insert the DO Sensor into the calibration container until the measurement sectionof the sensor is situated approximately 2 cm away from the sponge.
Approx. 2 cm

(Fig. 7.4.3-1)(3) Allow it to settle, undisturbed, for 5 to 10 minutes.

Caution• Do not leave the sensor attached to the calibration container for more than 30 minutes. This will
result in dew condensation in measurement section, which will affect measurement value.
If dew condensation has occured, remove the moisture from the measurement section, then start
calibration again.
(4) Set Data item 0005H (DO concentration calibration mode) to 0002H.
The unit moves to DO concentration 2-point calibration mode.
If 211, 210 digits are read at Data item 0083H (Status flag 1), 10 (DO concentration 2-point calibrationmode) will be returned.
22

(5) Set Data item 0006H (DO concentration calibration start) to 0001H.
1st-point calibration (100% saturation calibration) starts.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 01 [During 1st-point calibration (100%saturation calibration)] will be returned.
(6) Set Data item 0006H (DO concentration calibration start) to 0003H.
The measured value will be fixed, and automatic calibration will be performed.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 00 (Standby) will be returned.
1st-point calibration (100% saturation calibration) is completed.
(7) Prepare a zero standard solution.
Zero standard solution is 100 mL of ion-exchanged water into which 5 g or more of sodium sulfite
has been added and completely dissolved.
(8) Take out the calibration container sponge used for 1st-point calibration, and pour the zero standard
solution into the calibration container up to the Fill Line.

(Fig. 7.4.3-2)(9) Insert the temperature sensor of the DO Sensor until it is immersed in the prepared zero standard
solution.

Caution• Insert the measurement section so that approximately 1 cm of gap is left between it and thebottom of the calibration container.
• Insert the measurement section so that air bubbles cannot attach to it.
(10) Allow it to settle, undisturbed, for at least 5 minutes to stabilize the temperature.
(11) Set Data item 0006H (DO concentration calibration start) to 0002H.
2nd-point calibration (0-point calibration) starts.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 10 [During 2nd-point calibration (0-pointcalibration)] will be returned.
(12) Set Data item 0006H (DO concentration calibration start) to 0003H.
The measured value will be fixed, and automatic calibration will be performed.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 00 (Standby) will be returned.
2nd-point calibration (0-point calibration) is completed.
2-point calibration (both 100% saturation calibration and 0-point calibration) is completed.
(13) Set Data item 0006H (DO concentration calibration start) to 0000H.
The unit reverts to DO concentration 2-point calibration mode.
(14) Set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
If calibration cannot be performed during DO concentration 2-point calibration due to unstable
DO concentration input or temperature correction error, etc., and if 28 digit is read at Data item
0083H (Status flag 1), 1 (Error) will be returned.
To release the error, set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
23

7.4.4 Concentration Option Calibration Mode
Immerse the DO Sensor in an aqueous solution (of known concentration), then the measurement
value can be matched to the concentration.
Factory default value: 0.00 mg/L
DO concentration can be set within a range of 0.00 to 20.00 mg/L.
The following outlines the calibration procedure.
(e.g.) Setting to the (already-known) concentration of 7.77 mg/L
(1) Pour the already-known concentration solution into the calibration container up to the Fill Line.

(Fig. 7.4.4-1)(2) Insert the temperature sensor of the DO Sensor until it is immersed in the poured solution.

Caution• Insert the measurement section so that approximately 1 cm of gap is left between it andthe bottom of the calibration container.
• Insert the measurement section so that air bubbles cannot attach to it.
(3) Allow it to settle, undisturbed, for at least 5 minutes to stabilize the temperature.
(4) Set Data item 0005H (DO concentration calibration mode) to 0003H.
The unit moves to Concentration option calibration mode.
If 211, 210 digits are read at Data item 0083H (Status flag 1), 11 (Concentration option
calibration mode) will be returned.
(5) Set Data item 0007H (Concentration desired value) to the desired value (7.77).
(6) Set Data item 0006H (DO concentration calibration start) to 0001H.
Concentration option calibration starts.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 11 (During concentration
option calibration) will be returned.
(7) Set Data item 0006H (DO concentration calibration start) to 0003H.
The measured value will be fixed, and calibration will be performed.
If 213, 212 digits are read at Data item 0083H (Status flag 1), 00 (Standby) will be returned.
Concentration option calibration is completed.
(8) Set Data item 0006H (DO concentration calibration start) to 0000H.
The unit reverts to Concentration option calibration mode.
(9) Set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
If errors occur during concentration option calibration, and if 28 digit is read at Data item 0083H(Status flag 1), 1 (Error) will be returned.
To release the error, set Data item 0005H (DO concentration calibration mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.

24

7.5 Transmission output 1 and 2 Adjustments
7.5.1 Transmission output 1 Adjustment Mode
Fine adjustment of Transmission output 1 is performed.
This DO meter (AER-102-DO) is adjusted at the factory, however, differences may occur between theindication value of the connected equipment (recorders, etc.) and the output value of this instrument.
In this case, perform Transmission output 1 Zero adjustment and Span adjustment.
The following outlines the procedure for Transmission output 1 adjustment.
(1) Set Data item 000EH (Transmission output 1 adjustment mode) to 0001H.
The unit moves to Transmission output 1 Zero adjustment mode.
If 29, 28 digits are read at Data item 0093H (Status flag 2), 01 (During Transmission output 1 Zeroadjustment in Transmission output 1 adjustment mode) will be returned.
(2) Set Transmission output 1 Zero adjustment value at Data item 000FH (Transmission output 1 Zeroadjustment value), while checking the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 span(3) Set Data item 000EH (Transmission output 1 adjustment mode) to 0002H.
The unit moves to Transmission output 1 Span adjustment mode.
If 29, 28 digits are read at Data item 0093H (Status flag 2), 10 (During Transmission output 1 Spanadjustment in Transmission output 1 adjustment mode) will be returned.
(4) Set Transmission output 1 Span adjustment value at Data item 0010H (Transmission output 1 Spanadjustment value), while checking the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 span(5) Repeat steps (1) to (4) if necessary.
(6) Set Data item 000EH (Transmission output 1 adjustment mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
7.5.2 Transmission output 2 Adjustment Mode
Fine adjustment of Transmission output 2 is performed.
This DO meter (AER-102-DO) is adjusted at the factory, however, differences may occur between theindication value of the connected equipment (recorders, etc.) and the output value of this instrument.
In this case, perform Transmission output 2 Zero adjustment and Span adjustment.
The following outlines the procedure for Transmission output 2 adjustment.
(1) Set Data item 0011H (Transmission output 2 adjustment mode) to 0001H.
The unit moves to Transmission output 2 Zero adjustment mode.
If 211, 210 digits are read at Data item 0093H (Status flag 2), 01 (During Transmission output 2 Zeroadjustment in Transmission output 2 adjustment mode) will be returned.
(2) Set Transmission output 2 Zero adjustment value at Data item 0012H (Transmission output 2 Zeroadjustment value), while checking the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 span(3) Set Data item 0011H (Transmission output 2 adjustment mode) to 0002H.
The unit moves to Transmission output 2 Span adjustment mode.
If 211, 210 digits are read at Data item 0093H (Status flag 2), 10 (During Transmission output 2 Spanadjustment in Transmission output 2 adjustment mode) will be returned.
(4) Set Transmission output 2 Span adjustment value at Data item 0013H (Transmission output 2 Spanadjustment value), while checking the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 span(5) Repeat steps (1) to (4) if necessary.
(6) Set Data item 0011H (Transmission output 2 adjustment mode) to 0000H.
The unit reverts to Display Mode or Cleansing Output Mode.
25

7.6 Notes on Programming Monitoring Software
7.6.1 How to speed up the scan time
When monitoring multiple units of AER-102-DO, set the program so that the requisite minimum pieces ofdata such as Data item 0080H (DO concentration), Data item 0090H (Temperature), Data item 0083H(Status flag 1), Data item 0093H (Status flag 2) can be read. For other data, set the program so that they
can be read only when their set value has been changed. This will speed up the scan time.
7.6.2 How to read the set value changes made by the front keypad operation
If any set value is changed by keypad operation, the AER-102-DO will set [0083H (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 [0083H (Status flag 1) 215: Change in key operation]
has been set to 1 (Yes), then read all set values.
2

Clear the [0083H (Status flag 1) 215: Change in key operation], by setting Data item 007FH (Key
operation change flag clearing) to 0001H (Clear change flag).
If Data item 007FH (Key operation change flag clearing) is set to 0001H (Clear change flag) during
setting mode of this instrument, Error code 5 (35H, Shinko protocol) or Exception Code 18 (12H,
MODBUS protocol) will be returned as a negative acknowledgement. And [0083H (Status flag 1)
215: Change in key operation] cannot be cleared.
Set a program so that all set values can be read when a negative acknowledgement is returned.
3 Read all set values again after acknowledgement is returned.
(2) Reading method 2
1 On the monitoring software side, check that [0083H (Status flag 1) 215: Change in key operation]
has been set to 1 (Yes), then set 007FH (Key operation change flag clearing) to 0001H (Clearchange flag).
2

Set the program depending on acknowledgement or negative acknowledgement as follows.
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(DO concentration), 0090H (Temperature), 0083H (Status flag 1), 0093H (Status flag 2), thenreturn to step 1 .

Thus, programs which do not affect the scan time can be created using the methods described above,even if set values on the monitoring software will not be updated until settings are complete.
7.6.3 Note when sending all set values at one time
• When EVT type is changed at Data items 0014H (EVT1 type), 0022H (EVT2 type), 0030H (EVT3 type)or 003EH (EVT4 type), EVT1, EVT2, EVT3 or EVT4 value will default to 0 (zero).
The output status of EVT1, EVT2, EVT3 or EVT4 will also be initialized.
First, send the EVT1, EVT2, EVT3, EVT4 type, then send the EVT1, EVT2, EVT3, EVT4 value set at
Data items 0015H (EVT1 value), 0023H (EVT2 value), 0031H (EVT3 value) and 003FH (EVT4 value).

26

8. Specifications
Serial communication

Cable length

Communicationline
Communication
methodCommunication
speed
Synchronization
Code form
Communication
protocolData bit/Parity
Stop bit
Error correction
Error detection
Data format

The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of the DO concentration, DO % saturation, Oxygen partialpressure, temperature and status(3) Function change, Adjustment(4) Reading and setting of user save area
1.2 km (Max.), Cable resistance: Within 50(Terminators are not necessary, but if used, use 120
minimum on bothsides.)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 bit, 2 bits (Selectable by keypad.)
Command request repeat system
Parity check, Checksum (Shinko protocol), LRC (MODBUS protocol ASCII),
CRC-16 (MODBUS protocol RTU)
ShinkoMODBUSMODBUS
Communication
ProtocolASCII
RTU
protocolStart bit1
1
1
Data bit7
7 (8) Selectable
8
Even (No parity, Odd) No parity (Even, Odd)
ParityEven
Selectable
Selectable
1 (2)
1 (2)
Stop bit1
Selectable
Selectable27

9. Troubleshooting
Check that power is being supplied to the master and slave that customers use. If communication failure
still occurs, check the following.
Problem
Communication
failureAlthoughcommunication
is occurring,
the response isnegative
acknowledgement.

Possible Cause
Communication cable is not securely
connected, or is disconnected/
defective.
Incorrect wiring of the communication
cable and/or connector
Imperfect contact between thecommunication cable and theconnector, or between thecommunication connector andinstrument port
Communication speed of the slave
does not match that of the master.
The data bit, parity and stop bit of themaster do not correspond to those of
the slave.
The instrument number (address) of
the slave does not correspond to thatof the command.
The instrument numbers (addresses)
are duplicated in multiple slaves.
Make sure that the program isappropriate for the transmission
timing.
A non-existent command code has
been sent.
The setting command data exceeds
the setting range of the slave.
The AER-102-DO cannot be set whilecalibration is being performed.
The AER-102-DO is in front keypad
operation setting mode.

Solution
Check the communication cable andconnector.
Check the communication cable andconnector.
Check the communication cable andconnector.

Set the same communication speed on
the master and the slave.
Set the same data bit, parity and stop biton the master and the slave.
Check the instrument number (address)of the slave and the command.
Check that each slave has a different
instrument number (address).
Check the program.

Check the command code.
Check the setting range of the slave.
Check the slave status.
Return the unit to Display Mode or
Cleansing Output Mode.

For all other malfunctions, please contact our main office or dealers.

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:28