DCL-33A (C5)COMMUNICATION INSTRUCTION MANUAL

No.DCL32CE3 2019.09
This manual contains instructions for the communication functions, operations and notes when operating theDCL-33A.
To prevent accidents arising from the misuse of this controller, please ensure the operator receives thismanual.

Warning

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

1. System Configuration
1.1 When Using USB Communication Cable CMC-001-3 (Sold Separately)
Host computer
USB communication
cable CMC-001-3(sold separately)

DCL-33A
No. 0

DCL-33A
No. 1

DCL-33A
No. 30(Fig. 1.1-1)
1.2 When Using Communication Converter IF-400 (Sold Separately)
Host computer

Communication converter

IF-400 (sold separately)
RS-232C
RS-485
DCL-33A
No. 0(Fig. 1.2-1)

1

DCL-33A
No. 1

DCL-33A
No.-302. Wiring
2.1 When Using USB Communication Cable CMC-001-3 (Sold Separately)
DCL-33A (Max. 31 units)

USB communication
cable CMC-001-3(sold separately)

CMC-001-3

Host computer
USB port

CDD or CPP (sold separately)

DCL-33A bottom(Fig. 2.1-1)

2.2 When Using Communication Converter IF-400 (Sold Separately)• D-sub 9-pin connector
IF-400(sold separately)

Shieldwire

DCL-33A (Max. 31 units)

FG

Host computer
D-sub 9-pin connector

CDD or CPP (sold separately)(Fig. 2.2-1)

Bottom of IF-400, DCL-33A

2

Shield wire
Be sure to ground only one end of the shield wire to avoid a ground loop. If both ends of the shieldwire are grounded, the circuit will be closed, resulting in a ground loop. This may cause noise.
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 apersonal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator to the communication line because each DCL-33A has built-in pull-up
and pull-down resistors.

3. Setting Communication Parameters
Press and hold theandkeys (in that order) together for approx. 3 seconds in the PV/SV
Display. The unit enters Auxiliary function setting mode 1.
key twice.
Press the“Communication protocol” will appear.
or
key for settings or selections, and register them by pressing thekey.
Use theCharacters,
Setting Item, Function, Setting Range (Selection item)
Factory Default
Communication protocol• Selects the communication protocol.
•: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
: Shinko protocol (Block Read/Write available): MODBUS ASCII mode (Block Read/Write available): MODBUS RTU mode (Block Read/Write available)
Instrument number• 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• Selects a communication speed equal to that of the host computer.
•: 2400 bps: 4800 bps: 9600 bps: 19200 bps: 38400 bps
Parity• Selects the parity.
• Not available if Shinko protocol or Shinko protocol (Block Read/Write available) is
selected in [Communication protocol].
: No parity•: Even: Odd
Stop bit• Selects the stop bit.
• Not available if Shinko protocol or Shinko protocol (Block Read/Write available) is
selected in [Communication protocol].
•: 1 bit: 2 bits
Press thekey. The unit reverts to the PV/SV Display Mode.

Settings are complete.

34. Communication Procedure

Communication starts with command transmission from the host computer (hereafter Master), andends with the response of the DCL-33A (hereafter Slave).
MasterCommand
Data

Slave

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

• Response with data
When the master sends the Read command, the slave
responds with the corresponding set value or current status.
• Acknowledgement
When the master sends the Write command, the slave
responds by sending the 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 between the master and slave
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 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 tosend 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.
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 a hexadecimal number.
The negative numbers are represented in 2's complement.
Numerals written below the command represent the number of characters.
(1) Write command• Write a single piece of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1
• Write multiple pieces of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1

Commandtype (50H)

Data
item

Data

Checksum

Delimiter
(03H)

1

4

4

2

1

Command
type
(54H)
1

Data
item
4
Data

Checksum

4xn
n: Amount of data

(2) Read command• Read a single piece of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1

Command
type
(20H)
1

• Read multiple pieces of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1

Command
type
(24H)
1

(3) Response with data
• Response to ‘Read a single piece of data’Sub
Command
HeaderAddress
address
type
(06H)
(20H)
(20H)
1
1
1
1

5

2

Data
item

Checksum

Delimiter
(03H)

4

2

1

Data
item
4

Amount ofread datan4Delimiter(03H)
1

Checksum

Delimiter
(03H)

2

1

Data
item

Data

Checksum

Delimiter
(03H)

4

4

2

1

• Response to ‘Read multiple pieces of data’Sub
Command
Headeraddress
type
Address
(06H)
(20H)
(24H)
1
1
1
1

Data
item
4
Data

Checksum

4xn

2Delimiter(03H)
1

n: Amount of data
(4) Acknowledgement
HeaderAddress(06H)
1
1

Checksum2(5) Negative acknowledgement
HeaderError
Address
(15H)
code
1
1
1
Header:Delimiter(03H)
1
Checksum
2

Delimiter(03H)
1

Control code to represent the beginning of the command or the response.
ASCII is used.
Write command, Read 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 (20H to 7FH) is 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

Command type: Codes for Write command and Read command.
CommandContents
Description
Type
20H
Read (A single piece of data)
Reads a single piece of data.
24H
Read (Multiple pieces of data)
Reads consecutive multiple piecesof data. (Amount of data: Max. 100)
50H
Write (A single piece of data)
Writes a single piece of data.
54H
Write (Multiple pieces of data)
Writes consecutive multiple piecesof data. (Amount of data: Max. 100)
Notes about Read/Write multiple pieces of data
When reading or writing multiple pieces of data, as it takes time until slave sends
response data, the master determines no response based on the timeout period below
after sending a command.
Timeout period calculation: 6 ms x Amount of data
Data item:

Classification of the command object.
Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to Section ‘7. Communication Command Table’ (pp.23 to 38).

Data:

The contents of data (values) differ depending on the Write command.
Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to Section ‘7. Communication Command Table’ (pp.23 to 38).

Checksum:

2-character data to detect communication errors.
6Delimiter:Control code to represent the end of command.
ASCII code ETX (03H) fixedError code:

Represents an error type using ASCII.
Error CodeContents
1 (31H)
Non-existent command
2 (32H)
Not used
3 (33H)
Setting outside the setting range
4 (34H)
Status unable to be written (e.g. AT is performing.)
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 to that
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.
[Example of checksum calculation]
Write SV1 (0001H) to 600 (0258H). See (Fig. 5.3-1).
Address (instrument number): 0 (20H)
Checksum calculation range[e.g.]
P

STX

0

0

0

1

0

2

5

8

32H

35H

38H

E

0

ETX

[Characters above are represented in ASCII.]
02H

20H

20H

50H

30H

30H

30H

31H

[Hexadecimal][Binary]
20H0010 0000
20H
0010 0000
50H
0101 0000
30H
0011 0000
30H
0011 0000
30H
0011 0000
31H
0011 0001
30H
0011 0000
32H
0011 0010
35H
0011 0101
0011 1000+ 38H
10 0010 0000

30H

45H 30H

Checksum[1's complement]+[2's complement][Hexadecimal][ASCII]

1101 1111
11110 0000
E

0

45H

30H

Checksum(Fig. 5.3-1)

703H

5.4 Command Example
Numerals written below the command represent the number of characters.
(1) Read [Address 1, PV]• Read command from the master
Header Address
(02H)
1

(21H)
1

Sub
Command
Data item
Checksum Delimiter
address
type[0080H](20H)(20H) (30H 30H 38H 30H) (44H 37H)
(03H)
1
1
4
2
1

• A response from the slave in normal status [When PV is 25
Header Address
(06H)
1

(21H)
1

(0019H)]Sub
Command
Data item
Data
Checksum Delimiter
address
type[0080H][0019H](20H)(20H) (30H 30H 38H 30H) (30H 30H 31H 39H) (30H 44H) (03H)
1
1
4
4
2
1

(2) Read [Address 1, SV1]
• Read command from the master
Header Address
(02H)
1

(21H)
1

Sub
Command
Data item
Checksum Delimiter
address
type[0001H](20H)(20H) (30H 30H 30H 31H) (44H 45H)
(03H)
1
1
4
2
1

• A response from the slave in normal status [When SV1 is 600
Header Address
(06H)
1

(21H)
1

(3) Write [Address 1, SV1 600 (0258H)]• Write command from the master
Header Address
(02H)
1

(21H)
1

Sub
Command
Data item
Data
Checksum Delimiter
address
type[0001H][0258H](20H)(50H) (30H 30H 30H 31H) (30H 32H 35H 38H) (44H 46H) (03H)
1
1
4
4
2
1

• A response from the slave in normal status
Header Address

Checksum Delimiter

(06H)
1

(44H 46H)
2

(21H)
1

(0258H)]Sub
Command
Data item
Data
Checksum Delimiter
address
type[0001H][0258H](20H)(20H)(30H 30H 30H 31H) (30H 32H 35H 38H) (30H 46H) (03H)
1
1
4
4
2
1

(03H)
1

8

(4) Read [Address 1, 25 commands from SV1]
• Read command from the master
Header Address
(02H)
1

(21H)
1

Amount of read data Checksum Delimiter
Data item
Sub Command
25 [0019H][0001H]address
type(20H)(24H) (30H 30H 30H 31H) (30H 30H 31H 39H) (31H 30H) (03H)
1
1
4
4
2
1

• A response from the slave in normal status
Header Address
(06H)
1

(21H)
1

Data item
Sub Command[0001H]address
type(20H)(24H) (30H 30H 30H 31H)
1
1
4

Data
Checksum Delimiter[00000000055A • • • 0000](30H 30H 30H 30H 30H 30H 30H 30H 30H 35H 35H 41H • • • 30H 30H 30H 30H) (43H 38H) (03H)
100 (4 x 25)
2
1

Response data becomes as follows.
0001H
0002H
0003H
0004H
0005H
0006H
0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Data Item

Data

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place
Alarm 1 type
Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2
Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value0
K [-200 to 1370 ]
1370
-200
No decimal point
No alarm action
No alarm action
No alarm action
No alarm action
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

9

Data
(Converted to Hexadecimal)
0000H
0000H
055AH
FF38H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H

(5) Write [Address 1, 25 commands from SV1]
(e.g.) The data (25 commands from SV1) is shown below.
Data Item
0001H
0002H
0003H
0004H
0005H

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place

0006H

Alarm 1 type

0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2
Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value

Data
2000
K [-199.9 to 400.0 ]4000
0XXX.X (1 digit after
decimal point)
High/Low limits
independent alarmHigh limit alarm
Low limit alarm
No alarm action
0
0
0
0
2000
0
0
0
1000
500
1000
0
-1500
0
0
0

Data
(Converted to Hexadecimal)
07D0H
0001H
0FA0H
0000H
0001H
000AH
0001H
0002H
0000H
0000H
0000H
0000H
0000H
07D0H
0000H
0000H
0000H
03E8H
01F4H
03E8H
0000H
FA24H
0000H
0000H
0000H

• Write command from the master (When writing the above data)
Header Address
(02H)
1

(21H)
1

Sub Command
Data item
address[0001H]
type(20H)(54H) (30H 30H 30H 31H)
1
1
4

Data
Checksum Delimiter[07D000010FA0 • • • 0000](30H 37H 44H 30H 30H 30H 30H 31H 30H 46H 41H 30H • • • 30H 30H 30H 30H) (45H 46H) (03H)
100 (4 x 25)
2
1• Response from the slave in normal status
Header Address Checksum Delimiter
(06H)
1

(21H)
1

(44H 46H)
2

(03H)
1

10

6. MODBUS Protocol
6.1 Transmission Mode
There are 2 transmission modes (ASCII and RTU) in MODBUS protocol.
6.1.1 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
Parity: Even (No parity, Odd) (Selectable)
Stop bit: 1 bit (2 bits) (Selectable)
Error detection : LRC (Longitudinal Redundancy Check)
6.1.2 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
6.2.1 ASCII ModeNo communication interval limit between characters
6.2.2 RTU Mode
1.5 character transmission times or less(Communication speed 2400, 4800, 9600, 19200 bps: 1.5 character transmission times,
Communication speed 38400 bps: 750 s)
To transmit continuously, an interval between characters which consist of one message, must bewithin 1.5 character transmission times.
If an interval lasts longer than 1.5 character transmission times, the DCL-33A assumes thattransmission from the master is finished, which results in a communication error, and will not returna response.
6.3 Message Configuration
6.3.1 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)].
Data section: Max. 2 x 252 characters
HeaderSlave
FunctionError check
Delimiter Delimiter
Data(:)
address
code
LRC
(CR)
(LF)
6.3.2 RTU Mode
RTU mode is configured to start after idle time is processed for more than 3.5 charactertransmissions, and end after idle time is processed for more than 3.5 character transmissions.
(Communication speed 2400, 4800, 9600, 19200 bps: 3.5 character transmission times,
Communication speed 38400 bps: 1.75 ms)
Data section: Max. 252 bytes
Slave
Function
3.5 idle
Error check3.5 idleDatacharacters addresscode
CRC-16characters11(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 addressin 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 6.3-1)
TypeFunction Code Sub-Function CodeContentsReads
asingleormultiple piece(s) of
03 (03H)
data from slave(s).
04(04H)
Reads information from slave(s).
Data access
06 (06H)
Writes a single piece of data to slave(s).
16 (10H)
Writes multiple pieces of data to slave(s).
08 (08H)
00
Echoes back the request message.
Diagnostics
43 (2BH)
14
Reads device identification information.
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 13H to the function code by mistake,slave returns 93H by setting the MSB to 1, because the former is an illegal function.
For negative acknowledgement, the exception codes below (Table 6.3-2) 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)
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)
Shinko protocol error code 4
17 (11H)(Status unable to be written. (e.g.) AT is performing.)
Shinko protocol error code 5
18 (12H)(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 codesin negative acknowledgements, corresponding to the request message.
The effective range of data is -32768 to 32767 (8000H to 7FFFH).
Refer to Section “7. Communication Command Table” (pp.23 to 38).
(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.
12

RTU Mode
After calculating CRC-16 (Cyclic Redundancy Check) from the slave address to the end of the data,
the calculated 16-bit data is appended to the end of message in sequence from low order to highorder.
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 and thefixed 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.
6.4 Message Example
6.4.1 ASCII Mode
Numerals written below the message represent the number of characters.
(1) Read [Slave address 1, PV (0100H)]• A request message from the master
HeaderSlave
Function
Data item
addresscode[0100H](3AH) (30H 31H) (30H 33H) (30H 31H 30H 30H)
12
2
4

Amount of data
[0001H](30H 30H 30H 31H)
4

• Response message from the slave in normal status [When PV is 600
Slave
Functionaddresscode(3AH) (30H 31H) (30H 33H)

Header1

2

2

Response
byte count[02H](30H 32H)
2

Data[0258H](30H 32H 35H 38H)

HeaderSlave
Function
Data item
address
code[0001H](3AH) (30H 31H) (30H 36H) (30H 30H 30H 31H)
1
2
2
4Delimiter
CR+LF(0DH 0AH)
2(0258H)]
Error check Delimiter
LRC
CR+LF
(41H 30H) (0DH 0AH)

4(2) Write [Slave address 1, SV1 (0001H)]• A request message from the master [When writing SV1 to 600

Error check
LRC(46H 41H)
22

2(0258H)]

Data
Error check Delimiter[0258H]
LRC
CR+LF(30H 32H 35H 38H) (39H 45H) (0DH 0AH)
4
2
2

• Response message from the slave in normal status
HeaderSlave
Function
Data item
address
code[0001H](3AH) (30H 31H) (30H 36H) (30H 30H 30H 31H)
1
2
2
4

Data
Error check Delimiter[0258H]
LRC
CR+LF(30H 32H 35H 38H) (39H 45H) (0DH 0AH)
4
2
2

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

13

(3) Read [Slave address 1, SV1 (0001H)]• A request message from the master
HeaderSlave
Function
Data item
Amount of data
Error check Delimiter
address
code[0001H][0001H]
LRC
CR+LF(3AH) (30H 31H) (30H 33H) (30H 30H 30H 31H) (30H 30H 30H 31H) (46H 41H) (0DH 0AH)
1
2
2
4
4
2
2

• Response message from the slave in normal status [When SV1 is 600
HeaderSlave
Functionaddresscode(3AH) (30H 31H) (30H 33H)
1

2

2

Response
byte count[02H](30H 32H)
2(0258H)]

Data
Error check Delimiter
LRC
CR+LF
[0258H](30H 32H 35H 38H) (41H 30H) (0DH 0AH)
4

2

2

• Response message from the slave in exception (error) status (When data item is incorrect)
The function code MSB is set to 1 for the response message in exception (error) status [83H (38H33H)].
The exception code 02H (30H 32H: Non-existent data address) is returned (error).
HeaderSlave
Function Exception code Error check Delimiter
address
code
[02H]
LRC
CR+LF
(3AH) (30H 31H) (38H 33H) (30H 32H)
(37H 41H) (0DH 0AH)
1
2
2
2
2
2

(4) Read [Slave address 1, 25 commands from SV1]
• A request message from the master
HeaderSlave
Function
Data item
Amount of data
Error check Delimiter
address
code[0001H][0019H]
LRC
CR+LF(3AH) (30H 31H) (30H 33H) (30H 30H 30H 31H) (30H 30H 31H 39H) (45H 32H) (0DH 0AH)
1
2
2
4
4
2
2

• Response message from the slave in normal status
Slave
Functionaddresscode(3AH) (30H 31H) (30H 33H)

Header1

2

2

Response
byte count[32H](33H 32H)
2

Data
Error check Delimiter[00000000055A • • • 0000]
LRC
CR+LF
(30H 30H 30H 30H 30H 30H 30H 30H 30H 35H 35H 41H • • • 30H 30H 30H 30H) (33H 34H) (0DH 0AH)
100 (4 x 25)
2
2

Response data section is shown below.
Data Item
0001H
0002H
0003H
0004H
0005H
0006H
0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place
Alarm 1 type
Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2

Data
0
K [-200 to 1370 ]
1370
-200
No decimal point
No alarm action
No alarm action
No alarm action
No alarm action
0
0
0
0
0
0
14

Data
(Converted to Hexadecimal)
0000H
0000H
055AH
FF38H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H

0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value

0
0
0
0
0
0
0
0
0
0

0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H

(5) Write (Slave address 1, 25 commands from SV1)
(e.g.) The data (25 commands from SV1) is shown below.
Data Item
0001H
0002H
0003H
0004H
0005H

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place

0006H

Alarm 1 type

0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2
Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value

Data
2000
K [-199.9 to 400.0 ]4000
0XXX.X (1 digit after
decimal point)
High/Low limits
independent alarmHigh limit alarm
Low limit alarm
No alarm action
0
0
0
0
2000
0
0
0
1000
500
1000
0
-1500
0
0
0

• A request message from the master (when writing the above data)
HeaderData(Converted to Hexadecimal)
07D0H
0001H
0FA0H
0000H
0001H
000AH
0001H
0002H
0000H
0000H
0000H
0000H
0000H
07D0H
0000H
0000H
0000H
03E8H
01F4H
03E8H
0000H
FA24H
0000H
0000H
0000H

Slave
Function
Data item
Amount of data
address
code[0001H][0019H](3AH) (30H 31H) (31H 30H) (30H 30H 30H 31H) (30H 30H 31H 39H)
1
2
2
4
4

Byte count[32H](33H 32H)
2

Data
Error check Delimiter[07D00001 • • • 0000
LRC
CR+LF
(30H 37H 44H 30H 30H 30H 30H 31H • • • 30H 30H 30H 30H) (34H 45H) (0DH 0AH)
100 (4 x 25)
2
2• Response message from the slave in normal status
HeaderSlave
Function
Data item
Amount of data
Error check Delimiter
address
code[0001H][0019H]
LRC
CR+LF(3AH) (30H 31H) (31H 30H) (30H 30H 30H 31H) (30H 30H 31H 39H) (44H 35H) (0DH 0AH)
1
2
2
4
4
2
2

15

6.4.2 RTU Mode
Numerals written below the message represent the number of characters.
(1) Read [Slave address 1, PV (0100H)]• A request message from the masterSlave
3.5 idle
address
characters(01H)
1

Function Data item Amount of data Error check3.5 idle
code
CRC-16characters(03H)(0100H)(0001H)(85F6H)
1
2
2
2• Response message from the slave in normal status [When PV is 600
Slave
3.5 idle
address
characters(01H)
1

Function
code
(03H)
1

Response
byte count
(02H)
1

Data

(2) Write [Slave address 1, SV1 (0001H)]• A request message from the master [When SV1 is written to 600
Slave
3.5 idle
address
characters(01H)
1(0258H)]

Error check3.5 idle
CRC-16characters(0258H)(B8DEH)2
2(0258H) ]Function Data item Data Error check3.5 idle
code
CRC-16characters(06H)(0001H) (0258H) (D890H)
12
2
2• Response message from the slave in normal status
Slave
3.5 idle
address
characters(01H)
1

Function Data item Data Error check3.5 idle
code
CRC-16characters(06H)(0001H) (0258H) (D890H)
12
2
2• 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, and 86H isreturned.
The Exception code 03H (Value out of the setting range) is returned (error).
Slave
3.5 idle
address
characters(01H)
1

Function
code
(86H)
1

Exception code Error check3.5 idle
CRC-16characters(03H)(0261H)1
2(3) Read [Slave address 1, SV1 (0001H)]• A request message from the masterSlave
3.5 idle
address
characters(01H)
1

Function Data item Data Error check3.5 idle
code
CRC-16characters(03H)(0001H) (0001H) (D5CAH)
1
2
2
2• Response message from the slave in normal status [When SV1 is 600
Slave
3.5 idle
address
characters(01H)
1

Function
code
(03H)
1

Response
byte count
(02H)
1

Data

(0258H)]

Error check3.5 idle
CRC-16characters(0258H) (B8DEH)
2
2• Response message from the slave in exception (error) status (When data item is incorrect)
The function code MSB is set to 1 for the response message in exception (error) status, and 83H
is returned. The Exception code 02H (Non-existent data address) is returned (error).
Slave
3.5 idle
address
characters(01H)
1

Function
code
(83H)
1

Exception code Error check3.5 idle
CRC-16characters(02H)(C0F1H)
1
2

16

(4) Read [Slave address 1, 25 commands from SV1]
• A request message from the masterSlave Function Data item Amount of Error check3.5 idle
3.5 idle
addresscode
data
CRC-16characterscharacters
(01H)
(03H)
(0001H) (0019H)(D5C0H)1
1
2
2
2• Response message from the slave in normal status
Slave Function
3.5 idle
addresscodecharacters
(01H)
(03H)
1
1

Response
byte count
(32H)
1

Data

Error check3.5 idle
CRC-16characters(00000000055A • • • 0000H) (60D9H)
50 (2 x 25)
2

Response data section is shown below.
0001H
0002H
0003H
0004H
0005H
0006H
0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Data Item

Data

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place
Alarm 1 type
Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2
Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value0
K [-200 to 1370 ]
1370
-200
No decimal point
No alarm action
No alarm action
No alarm action
No alarm action
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

17

Data
(Converted to Hexadecimal)
0000H
0000H
055AH
FF38H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H

(5) Write [Slave address 1, 25 commands from SV1]
(e.g.) The data (25 commands from SV1) is shown below.
Data Item

Data

0001H
0002H
0003H
0004H
0005H

SV1
Input type
Scaling high limit
Scaling low limit
Decimal point place

0006H

Alarm 1 type

0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
0017H
0018H
0019H

Alarm 2 type
Alarm 3 type
Alarm 4 type
Reserved
Reserved
Reserved
Reserved
SV1
SV2
Reserved
Reserved
Alarm 1 value
Alarm 1 high limit alarm value
Alarm 2 value
Alarm 2 high limit alarm value
Alarm 3 value
Alarm 3 high limit alarm value
Alarm 4 value
Alarm 4 high limit alarm value

2000
K [-199.9 to 400.0 ]4000
0XXX.X (1 digit after
decimal point)
High/Low limits
independent alarmHigh limit alarm
Low limit alarm
No alarm action
0
0
0
0
2000
0
0
0
1000
500
1000
0
-1500
0
0
0

Data
(Converted to Hexadecimal)
07D0H
0001H
0FA0H
0000H
0001H
000AH
0001H
0002H
0000H
0000H
0000H
0000H
0000H
07D0H
0000H
0000H
0000H
03E8H
01F4H
03E8H
0000H
FA24H
0000H
0000H
0000H

• A request message from the master (When writing the above data)
Slave Function
3.5 idle
address codecharacters
(01H)
(10H)
1
1

Data item(0001H)
2

Amount ofdata(0019H)
2

Byte
count
(32H)
1

Data
(07D000010FA0 • • • 0000H)
50 (2 x 25)• Response message from the slave in normal status
Slave Function
3.5 idle
addresscodecharacters
(01H)
(10H)
1
1

Data item(0001H)
2

Amount ofdata(0019H)
2

18

Error check3.5 idle
CRC-16characters(5C89H)
2

Error check3.5 idle
CRC-16characters(5003H)2

6.5 Diagnostics Function
MODBUS protocol has the following diagnostics functions.
• Echoes back the request message.
• Reads device identification information.
6.5.1 Message Configuration
ASCII mode
Slave
Function
Headeraddress(:)
code
RTU mode
3.5 idle
characters

Slave
address

Function
code

Data

Error check
LRC

Delimiter
(CR)

Data

Error check
CRC-16

3.5 idle
characters

Delimiter(LF)(1) Slave address
Slave address is an individual instrument number on the slave side, and is set within the range 1 to
95 (01H 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.
Diagnostics function is disabled for the Slave address 0 (00H, broadcast address).
(2) Function code
The function code is the command code for the slave to undertake the following action types.
Type
Function Code Sub-Function CodeContents
08 (08H)
00 (0000H)
Echoes back the request message.
Diagnostics
43 (2BH)
14 (0EH)
Reads device identification information.
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 themaster.
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, when the master sends request message setting 0FH to the sub-function code by
mistake, slave returns ABH by setting the MSB to 1, because the former is a non-existentsub-function code.
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.
Exception CodeContents
Illegal function (Non-existent function)
1 (01H)
Sub-function code is not correct.
Illegal data address (Non-existent data address)
2 (02H)For function code 43: Object ID is any value other than 00, 01, 02.
Illegal data value (Value out of the setting range)
3 (03H)For function code 08: Data is less than 1, or has exceeded 100.
For function code 43: Read Device ID code is any value other than 01, 04.
(3) Data
Data differs depending on the function code.
For the Function code 08 (08H), a request message from the master side is composed of‘Sub-function code 2 Bytes (0000H)’ and ‘Data n x 2 Bytes’. [n: Amount of data (Max. 100)]
In normal status, a response message from the slave side is the same as the request message.
1 ByteFunction code
08H
Sub-function code 1 Byte
0000H fixedDatan x 2 Bytes Random value (Max. 100)
19

For Function code 43 (2BH), the request message from the master side is composed of
Sub-function code 14 (0EH), Read Device ID code and Object ID.
Function code
1 Byte2BH
Sub-function code (MEI type)
1 Byte0EH
Read Device ID code
1 Byte01H/04H(Corresponds to Basic category)Object ID
1 Byte00 Vendor nameSHINKO TECHNOS CO., LTD.
Productcode (model)
01(e.g.) DCL-33A-R/M
02 Version number (D, T, MP)(e.g.) Dxx-xxxx-xx, MPxxxx-xx
Response message from the slave is composed of Sub-function code 14 (0EH) (for request),
Read Device ID code and Object ID.
Function code
1 Byte2BH
Sub-function code (MEI type)
1 Byte0EH
Data
Read Device ID code 1 Byte
01H/04H
Conformity level
1 Byte01H/81H
More Follows
1 Byte00H/FFH
Next Object ID
1 ByteObject ID number
Number of Objects
1 ByteList of Object ID
1 ByteList of Object length
1 ByteList of Object value
Object length
For the response message (negative acknowledgement), an exception code is set and returned.
Function code
1 ByteABH
Exception code
1 Byte01H/02H/03H(4) Error check16-bit data to detect communication errors.
Refer to Section ‘6.3 Message Configuration (4) Error Check (pp.12, 13).
6.5.2 Message Example
Message example in RTU mode are shown below.
Numerals written below the message represent the number of characters.
(1) Echo back Slave address 1, Request message• A request message from the master [Test data 200 (00C8H), 60 (003CH), 10 (000AH)]
3.5 idle
characters

Slave
address(01H)1

Function
code
(08H)
1

Sub-functioncode(0000H)
2

Data(00C8003C000AH)
nx2

Error check
CRC-16(E7D9H)2

3.5 idle
characters• Response message from the slave in normal status (Echoes back the same message.)
3.5 idle
characters

Slave
address(01H)1

Function
code
(08H)
1

Sub-functioncode(0000H)
2

20

Data

(00C8003C000AH)
nx2

Error check
CRC-16(E7D9H)2

3.5 idle
characters(2) Read Slave address 1, Device identification information (Vendor name)• A request message from the master3.5 idle
characters

Slave
address(01H)1

Function
code
(2BH)
1

Sub-function
code
(0EH)
1

Data

(0400H)
2

Error check
CRC-16(7327H)2

3.5 idle
characters• Response message from the slave in normal status (SHINKO TECHNOS CO., LTD.)
Slave Function
3.5 idle
addresscodecharacters
(01H)
(2BH)
1
1

Sub-function
code
(0EH)
1

Data
(048100000100185348494E4B4F20544543484E4F5320434F2E2C204C54442EH)

31

Error check
CRC-16(1C54H)

2

Data in the response message becomes as follows.
Data
Read Device ID code 1 Byte
04H
1 ByteConformity level
81H
1
Byte
More Follows
00H
1 ByteNext Object ID
00H
1
Byte
Number of Objects
01H
1 ByteList of Object ID
00H
1 ByteList of Object length24(18H)
List of Object value
Object length S(53H)
H(48H)
I(49H)
N(4EH)
K(4BH)
O(4FH)(20H)
T(54H)
E(45H)C(43H)
H(48H)
N(4EH)
O(4FH)
S(53H)(20H)
C(43H)
O(4FH).(2EH),(2CH)(20H)
L(4CH)
T(54H)
D(44H).(2EH)

21

3.5 idle
characters(3) Read Slave address 1, Device identification information (Product code)• A request message from the master
Slave
Function Sub-function Data Error check3.5 idle
3.5 idle
addresscode
code
CRC-16characters (01H)
characters
(2BH)
(0EH)
(0401H) (B2E7H)
1
1
1
2
2
• Response message from the slave in normal status (DCL-33A-R/M)
Slave
Function
Sub-function
3.5 idle
addresscode
codecharacters (01H)
(2BH)
(0EH)
1
1
1
Data
(0481000001010B44434C2D3333412D522F4DH)

Error check3.5 idle
CRC-16characters(8EF3H)

18

2

Data in the response message becomes as follows.
Data
Read Device ID code 1 Byte
04H
1
Byte
Conformity level
81H
1 ByteMore Follows
00H
1 ByteNext Object ID
00H
1
Byte
Number of Objects
01H
1 ByteList of Object ID
01H
1
Byte
List of Object length11(0BH)
List of Object value
Object length D(44H)
C(43H)
L(4CH)-(2DH)
3(33H)
3(33H)
A(41H)-(2DH)
R(52H)/(2FH)
M(4DH)• Response message from the slave in exception (error) status [when Sub-function code (MEI type)
is incorrect]
The function code MSB is set to 1 for the response message in exception (error) status, and ABH
is returned.
Exception code 01H (Non-existent function) is returned (error).
Slave
3.5 idle
address
characters(01H)
1

Function Exception code Error check3.5 idle
code
CRC-16characters(ABH)(9EF0H)
(01H)
1
1
2

22

7. Communication Command Table

7.1 Shinko Protocol, MODBUS ASCII Mode, MODBUS RTU Mode Commands
7.1.1 A Single Piece of Data Read/Write Command
ShinkoMODBUS
Command Function
Data Item
Data
Type
Code
20H/50H
03H/06H 0001H SV1
Set value
20H/50H
03H/06H 0003H AT Perform/Cancel
0000H: AT Cancel
0001H: AT Perform
20H/50H
03H/06H 0004H OUT1 proportional bandSet value
20H/50H
03H/06H 0005H OUT2 proportional bandSet value
20H/50H
03H/06H 0006H Integral time
Set value
Derivativetime
20H/50H
03H/06H 0007H
Set value
20H/50H
03H/06H 0008H OUT1 proportional cycle
Set value
20H/50H
03H/06H 0009H OUT2 proportional cycle
Set value
20H/50H
03H/06H 000AH Manual reset
Set value
20H/50H
03H/06H 000BH Alarm 1 value
Set value
Heaterburnoutalarmvalue
20H/50H
03H/06H 000FH
Set value
20H/50H
03H/06H 0010H Loop break alarm time
Set value
20H/50H
03H/06H 0011H Loop break alarm bandSet value
0000H: Unlock
20H/50H
03H/06H 0012H Set value lock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
20H/50H
03H/06H 0015H Sensor correction
Set value
20H/50H
03H/06H 0016H Overlap/Dead bandSet value
20H/50H
03H/06H 0018H Scaling high limit
Set value
20H/50H
03H/06H 0019H Scaling low limit
Set value
20H/50H
03H/06H 001AH Decimal point place
0000H: XXXX (No decimal point)
0001H: XXX.X (1 digit after decimal point)
0002H: XX.XX (2 digits after decimal point)
0003H: X.XXX (3 digits after decimal point)
20H/50H
03H/06H 001BH PV filter time constantSet value
20H/50H
03H/06H 001CH OUT1 high limit
Set value
20H/50H
03H/06H 001DH OUT1 low limit
Set value
20H/50H
03H/06H 001EH OUT1 ON/OFF hysteresis
Set value
20H/50H
03H/06H 001FH OUT2 cooling method
0000H: Air cooling (Linear
characteristic)
0001H: Oil cooling (1.5th power ofthe linear characteristic)
0002H: Water cooling (2nd powerof the linear characteristic)
20H/50H
03H/06H 0020H OUT2 high limit
Set value
20H/50H
03H/06H 0021H OUT2 low limit
Set value
20H/50H
03H/06H 0022H OUT2 ON/OFF hysteresis
Set value
0000H: No alarm action
20H/50H
03H/06H 0023H Alarm 1 type
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit with standby alarm
0008H: Low limit with standby alarm
0009H: High/Low limits with standby
23

ShinkoCommandType
20H/50H

MODBUS
FunctionCode
03H/06H 0023H

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

03H/06H 0025H
03H/06H 0029H
03H/06H 0040H

20H/50H

03H/06H 0042H

Alarm 1 hysteresis
Alarm 1 delay time
Alarm 1
Energized/De-energized
Alarm 1 HOLD function

20H/50H

03H/06H 0044H

Input type

20H/50H

03H/06H 0045H

Direct/Reverse action

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

03H/06H 0047H
03H/06H 0048H
03H/06H 006FH

AT biasARW
Key lock

Data Item
Alarm 1 type

24

Data
000AH: High/Low limits independent
000BH: High/Low limit range
independent
000CH: High/Low limits with standby
independent
Set value
Set value
0000H: Energized
0001H: De-energized
0000H: Not holding
0001H: Holding
0000H: K [-200 to 1370 ]
0001H: K [-199.9 to 400.0 ]0002H: J [-200 to 1000 ]
0003H: R [0 to 1760 ]
0004H: S [0 to 1760 ]
0005H: B [0 to 1820 ]
0006H: E [-200 to 800 ]
0007H: T [-199.9 to 400.0 ]0008H: N [-200 to 1300 ]
0009H: PL- [0 to 1390 ]000AH: C (W/Re5-26) [0 to 2315 ]
000BH: Pt100 [-199.9 to 850.0 ]000CH: JPt100 [-199.9 to 500.0 ]000DH: Pt100 [-200 to 850 ]000EH: JPt100 [-200 to 500 ]
000FH: K [-320 to 2500 ]
0010H: K [-199.9 to 750.0 ]0011H: J [-320 to 1800 ]
0012H: R [0 to 3200 ]0013H: S [0 to 3200 ]0014H: B [0 to 3300 ]
0015H: E [-320 to 1500 ]
0016H: T [-199.9 to 750.0 ]0017H: N [-320 to 2300 ]0018H: PL- [0 to 2500 ]
0019H: C (W/Re5-26) [0 to 4200 ]001AH: Pt100 [-199.9 to 999.9 ]001BH: JPt100 [-199.9 to 900.0 ]001CH: Pt100 [-300 to 1500 ]
001DH: JPt100 [-300 to 900 ]
001EH: 4 to 20 mA DC [-1999 to 9999](Externally mounted shunt resistor)
001FH: 0 to 20mA DC [-1999 to 9999](Externally mounted shunt resistor)
0020H: 0 to 1 V DC [-1999 to 9999]
0021H: 0 to 5 V DC [-1999 to 9999]
0022H: 1 to 5 V DC [-1999 to 9999]
0023H: 0 to 10 V DC [-1999 to 9999]
0024H: 0 to 20 mA DC [-1999 to 9999](Built-in shunt resistor)
0025H: 0 to 20mA DC [-1999 to 9999](Built-in shunt resistor)
0000H: Heating (Reverse action)
0001H: Cooling (Direct action)
Set value
Set value
0000H: Key Enabled
0001H: Key Locked7.1.2 A Single Piece of Data Write Command
ShinkoMODBUS
Command Function
Data Item
Type
Code
50H
06H
0070H Key operation change flagclearing

7.1.3 A Single Piece of Data Read Command
ShinkoMODBUS
Command Function
Data Item
Type
Code
20H
03H
0080H PV
20H
03H
0081H OUT1 MV (MV1)20H
03H0082H OUT2 MV (MV2)20H
03H0085H Status flag

Data
0000H: No action
0001H: Clear key operation change
flag

Data
PV (Process variable)
Current OUT1 MV (MV1)
Current OUT2 MV (MV2)0000 0000 0000 0000
to
20
215
20 digit: OUT1
0: OFF 1: ON
21 digit: Not used (Always 0)
22 digit: Alarm 1 output
0: OFF 1: ON
3 to 25 digits: Not used (Always 0)
2
26 digit: Heater burnout alarm output
0: OFF 1: ON(For sensor burnout, 0: OFF)7 digit: Loop break alarm output
2
0: OFF 1: ON
8 digit: Overscale
2
0: OFF 1: ON
9 digit: Underscale
2
0: OFF 1: ON
10 digit: Not used (Always 0)2
211 digit: During AT
0: OFF 1: During AT
212 digit: Not used (Always 0)
213 digit: Controller/Converter
0: Controller 1: Converter
14 digit: Not used (Always 0)2
215 digit: Change in key operation
0: No 1: Yes

25

7.2 Shinko Protocol (Block Read/Write available), MODBUS ASCII Mode (Block Read/Writeavailable), MODBUS RTU Mode (Block Read/Write available) Commands
7.2.1 A Single/Multiple Piece(s) of Data Read/Write Command
ShinkoMODBUS
Data Item
Data
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 0001H SV1
Set value
0000H: K [-200 to 1370 ]20H/24H/50H/54H 03H/06H/10H 0002H Input type
0001H: K [-199.9 to 400.0 ]0002H: J [-200 to 1000 ]
0003H: R [0 to 1760 ]
0004H: S [0 to 1760 ]
0005H: B [0 to 1820 ]
0006H: E [-200 to 800 ]
0007H: T [-199.9 to 400.0 ]0008H: N [-200 to 1300 ]
0009H: PL- [0 to 1390 ]000AH: C (W/Re5-26) [0 to 2315 ]
000BH: Pt100 [-199.9 to 850.0 ]000CH: JPt100 [-199.9 to 500.0 ]000DH: Pt100 [-200 to 850 ]000EH: JPt100 [-200 to 500 ]
000FH: K [-320 to 2500 ]
0010H: K [-199.9 to 750.0 ]0011H: J [-320 to 1800 ]
0012H: R [0 to 3200 ]0013H: S [0 to 3200 ]0014H: B [0 to 3300 ]
0015H: E [-320 to 1500 ]
0016H: T [-199.9 to 750.0 ]0017H: N [-320 to 2300 ]0018H: PL- [0 to 2500 ]
0019H: C (W/Re5-26) [0 to 4200 ]001AH: Pt100 [-199.9 to 999.9 ]001BH: JPt100 [-199.9 to 900.0 ]001CH: Pt100 [-300 to 1500 ]
001DH: JPt100 [-300 to 900 ]
001EH: 4 to 20 mA DC [-1999 to 9999](Externally mounted shunt resistor)
001FH: 0 to 20 mA DC [-1999 to 9999](Externally mounted shunt resistor)
0020H: 0 to 1 V DC [-1999 to 9999]
0021H: 0 to 5 V DC [-1999 to 9999]
0022H: 1 to 5 V DC [-1999 to 9999]
0023H: 0 to 10 V DC [-1999 to 9999]
0024H: 0 to 20 mA DC [-1999 to 9999](Built-in shunt resistor)
0025H: 0 to 20 mA DC [-1999 to 9999](Built-in shunt resistor)
Set
value
20H/24H/50H/54H 03H/06H/10H 0003H Scaling high limit
Set value
20H/24H/50H/54H 03H/06H/10H 0004H Scaling low limit
20H/24H/50H/54H 03H/06H/10H 0005H Decimal point place 0000H: XXXX (No decimal point)
0001H: XXX.X (1 digit after decimal
point)
0002H: XX.XX (2 digits after decimal
point)
0003H: X.XXX (3 digits after decimal
point)

26

Shinko
MODBUS
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 0006H

Data Item

Data

Alarm 1 type

20H/24H/50H/54H

03H/06H/10H 0007H

Alarm 2 type

20H/24H/50H/54H

03H/06H/10H 0008H

Alarm 3 type

20H/24H/50H/54H

03H/06H/10H 0009H

Alarm 4 type

0000H: No alarm action
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit with standby alarm
0008H: Low limit with standby alarm
0009H: High/Low limits with standby
000AH: High/Low limits independent
000BH: High/Low limit range
independent
000CH: High/Low limits with standby
independent
0000H: No alarm action
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit with standby alarm
0008H: Low limit with standby alarm
0009H: High/Low limits with standby
000AH: High/Low limits independent
000BH: High/Low limit range
independent
000CH: High/Low limits with standby
independent
0000H: No alarm action
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit with standby alarm
0008H: Low limit with standby alarm
0009H: High/Low limits with standby
000AH: High/Low limits independent
000BH: High/Low limit range
independent
000CH: High/Low limits with standby
independent
0000H: No alarm action
0001H: High limit alarm
0002H: Low limit alarm
0003H: High/Low limits alarm
0004H: High/Low limit range alarm
0005H: Process high alarm
0006H: Process low alarm
0007H: High limit with standby alarm
0008H: Low limit with standby alarm
0009H: High/Low limits with standby
000AH: High/Low limits independent
000BH: High/Low limit range
independent
000CH: High/Low limits with standby
independent

20H/24H/50H/54H

03H/06H/10H 000AH Reserved (*1)
27

Shinko
MODBUS
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 000BH
20H/24H/50H/54H 03H/06H/10H 000CH
20H/24H/50H/54H 03H/06H/10H 000DH
20H/24H/50H/54H 03H/06H/10H 000EH
20H/24H/50H/54H 03H/06H/10H 000FH
20H/24H/50H/54H 03H/06H/10H 0010H
20H/24H/50H/54H 03H/06H/10H 0011H
20H/24H/50H/54H 03H/06H/10H 0012H
20H/24H/50H/54H 03H/06H/10H 0013H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0014H
03H/06H/10H 0015H

20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0016H
03H/06H/10H 0017H

20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0018H
03H/06H/10H 0019H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 001AH
03H/06H/10H 001BH
03H/06H/10H 001CH

20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 001DH
03H/06H/10H 001EH

20H/24H/50H/54H

03H/06H/10H 001FH

20H/24H/50H/54H

03H/06H/10H 0020H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0021H
03H/06H/10H 0022H
03H/06H/10H 0023H

Data Item
Reserved (*1)
Reserved (*1)
Reserved (*1)
SV1
SV2
Reserved (*1)
Reserved (*1)
Alarm 1 value
Alarm 1 high limit
alarm value
Alarm 2 value
Alarm 2 high limit
alarm value
Alarm 3 value
Alarm 3 high limit
alarm value
Alarm 4 value
Alarm 4 high limit
alarm value
Reserved (*1)
Reserved (*1)
Heater burnout
alarm value
Reserved (*1)
Loop break alarmtime
Loop break alarmband
Event input DI
allocation

Reserved (*1)
Reserved (*1)
Reserved (*1)

28

Data

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
0000H: No event
0001H: Set value memory
0002H: Control ON/OFF
0003H: Direct/Reverse action
0004H: Preset output 1 ON/OFF
0005H: Preset output 2 ON/OFF
0006H: Auto/Manual control
0007H: Integral action Holding/
Usual integral action
0008H: Set value memory
0009H: Control ON/OFF
000AH: Direct/Reverse action
000BH: Preset output 1 ON/OFF
000CH: Preset output 2 ON/OFF
000DH: Auto/Manual control
000EH: Integral action Holding/
Usual integral action

Shinko
MODBUS
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 0024H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0025H
03H/06H/10H 0026H
03H/06H/10H 0027H

20H/24H/50H/54H

03H/06H/10H 0028H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0029H
03H/06H/10H 002AH
03H/06H/10H 002BH

20H/24H/50H/54H

03H/06H/10H 002CH

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 002DH
03H/06H/10H 002EH
03H/06H/10H 002FH

20H/24H/50H/54H

03H/06H/10H 0030H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0031H
03H/06H/10H 0032H
03H/06H/10H 0033H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H

0034H
0035H
0036H
0037H
0038H
0039H
003AH
003BH
003CH

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H

003DH
003EH
003FH
0040H
0041H

20H/24H/50H/54H

03H/06H/10H 0042H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0043H
03H/06H/10H 0044H
03H/06H/10H 0045H

Data Item
Alarm 1 value 0
Enabled/Disabled
Alarm 1 hysteresis
Alarm 1 delay time
Alarm 1 Energized/
De-energized
Alarm 2 value 0
Enabled/Disabled
Alarm 2 hysteresis
Alarm 2 delay time
Alarm 2 Energized/
De-energized
Alarm 3 value 0
Enabled/Disabled
Alarm 3 hysteresis
Alarm 3 delay time
Alarm 3 Energized/
De-energized
Alarm 4 value 0
Enabled/Disabled
Alarm 4 hysteresis
Alarm 4 delay time
Alarm 4 Energized/
De-energized
Reserved (*1)
Reserved (*1)
Reserved (*1)
Reserved (*1)
Reserved (*1)
Reserved (*1)
Reserved (*1)
Reserved (*1)
OUT1 proportional
band
Integral time
Derivative time
ARW
Manual reset
OUT1 proportional
cycle
OUT1 ON/OFF
hysteresis
OUT1 high limit
OUT1 low limit
Reserved (*1)

29

Data
0000H: Disabled
0001H: Enabled
Set value
Set value
0000H: Energized
0001H: De-energized
0000H: Disabled
0001H: Enabled
Set value
Set value
0000H: Energized
0001H: De-energized
0000H: Disabled
0001H: Enabled
Set value
Set value
0000H: Energized
0001H: De-energized
0000H: Disabled
0001H: Enabled
Set value
Set value
0000H: Energized
0001H: De-energized

Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set valueShinko
MODBUS
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 0046H

20H/24H/50H/54H

03H/06H/10H 0047H

20H/24H/50H/54H

03H/06H/10H 0048H

20H/24H/50H/54H

03H/06H/10H 0049H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H

20H/24H/50H/54H

03H/06H/10H 004EH

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 004FH
03H/06H/10H 0050H
03H/06H/10H 0051H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0052H
03H/06H/10H 0053H
03H/06H/10H 0054H

20H/24H/50H/54H

03H/06H/10H 0055H

20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 0056H
03H/06H/10H 0057H

20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H
03H/06H/10H

20H/24H/50H/54H

03H/06H/10H 005DH

20H/24H/50H/54H
20H/24H/50H/54H

03H/06H/10H 005EH
03H/06H/10H 005FH

20H/24H/50H/54H

03H/06H/10H 0060H

20H/24H/50H/54H

03H/06H/10H 0061H

20H/24H/50H/54H

03H/06H/10H 0062H

004AH
004BH
004CH
004DH

0058H
0059H
005AH
005BH
005CH

Data ItemOUT2 coolingmethodOUT2 proportionalband
OUT2 proportional
cycle
OUT2 ON/OFF
hysteresis
OUT2 high limit
OUT2 low limit
Overlap/Dead band
Direct/Reverse
actionSet value lockReserved (*1)
Sensor correction
PV filter time
constant
Reserved (*1)
SVTC bias
External setting
input high limit
External setting
input low limit
Remote bias
SV Rise/Fall rate
start typeSV rise rate
SV fall rate
Reserved (*1)
AT biasOutput status when
input errors occur
Auto/Manual
after power ON
Reserved (*1)
OUT1 MV presetvalue
OUT2 MV preset
value
Alarm 1 HOLD
function
Alarm 2 HOLD
function
30

Data
0000H: Air cooling (Linear
characteristic)
0001H: Oil cooling (1.5th power ofthe linear characteristic)
0002H: Water cooling (2nd power ofthe linear characteristic)
Set value
Set value
Set value
Set value
Set value
Set value
0000H: Heating (Reverse action)
0001H: Cooling (Direct action)
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
Set value
Set value

Set value
Set value
Set value
Set value
0000H: SV start
0001H: PV start
Set value
Set value
Set value
0000H: Output OFF
0001H: Output ON
0000H: Automatic control
0001H: Manual control
Set value
Set value
0000H: Not holding
0001H: Holding
0000H: Not holding
0001H: Holding

Shinko
MODBUS
Command Type Function Code20H/24H/50H/54H 03H/06H/10H 0063H
20H/24H/50H/54H
20H/24H/50H/54H:
20H/24H/50H/54H
20H/24H/50H/54H:
20H/24H/50H/54H

Data Item

Alarm 3 HOLD
function
03H/06H/10H 0064H Alarm 4 HOLD
function
03H/06H/10H 0065H Reserved (*1):::
03H/06H/10H 008CH Reserved (*1)
03H/06H/10H 008DH Not used (*2):::
03H/06H/10H 00DFH Not used (*2)

31

Data
0000H: Not holding
0001H: Holding
0000H: Not holding
0001H: Holding7.2.2 A Single Piece of Data Read/Write Command
ShinkoMODBUS
Command Function
Data ItemType
Code
20H/50H
03H/06H 00E0H SUB-MODE key function

20H/50H

03H/06H 00E1H

20H/50H

03H/06H 00E2H

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

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

20H/50H

03H/06H 00E7H

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

03H/06H 00E8H
03H/06H 00E9H
03H/06H 00EAH

20H/50H

03H/06H 00EBH

20H/50H

03H/06H 00ECH

20H/50H

03H/06H 00EDH

20H/50H

03H/06H 00EEH

20H/50H

03H/06H 00EFH

20H/50H

03H/06H 00F0H

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

03H/06H 00F1H::
03H/06H 00FDH
03H/06H 00FEH

00E3H
00E4H
00E5H
00E6H

Data

0000H: Control output OFF function
0001H: Auto/Manual control
0002H: Alarm HOLD cancel
Remote/Local
0000H: Local
0001H: Remote
Control output OFF function， Control output OFF function
Auto/Manual control,
0000H: Control output ON
or
0001H: Control output OFF
Alarm HOLD cancel
Auto/Manual control
0000H: Automatic control
0001H: Manual control
Alarm HOLD cancel
0000H: No action
0001H: Alarm HOLD cancel
Reserved (*1)
Reserved (*1)
Manual control MV (*3)
Set value
AT Perform/Cancel
0000H: AT Cancel
0001H: AT Perform
Controller/Converter
0000H: Controller
0001H: Converter
Reserved (*1)
Reserved (*1)
Control output OUT1/EVT
0000H: OUT10001H: EVTHeater burnout alarm output 0000H: Disabled
Enabled/Disabled
0001H: Enabled
Loop break alarm output
0000H: Disabled
Enabled/Disabled
0001H: Enabled
Alarm 1 output
0000H: Disabled
Enabled/Disabled
0001H: Enabled
Alarm 2 output
0000H: Disabled
Enabled/Disabled
0001H: Enabled
Alarm 3 output
0000H: Disabled
Enabled/Disabled
0001H: Enabled
Alarm 4 output
0000H: Disabled
Enabled/Disabled
0001H: Enabled
Not used (*2):
Not used (*2)
Reserved (*1)

7.2.3 A Single Piece of Data Write Command
ShinkoMODBUS
Command Function
Data Item
Type
Code
50H
06H
00FFH Key operation change flagclearing (*4)

32

Data
0000H: No action
0001H: Clear key operation change flag7.2.4 A Single/Multiple Piece(s) of Data Read Command
ShinkoModbusCommand Function
Data ItemType
Code
20H/24H
03H/04H 0100H PV
20H/24H
03H/04H 0101H OUT1 MV (MV1)
20H/24H
03H/04H 0102H OUT2 MV (MV2)
20H/24H
03H/04H 0103H Current SV
20H/24H
03H/04H 0104H Reserved (*1)
20H/24H
03H/04H 0105H Reserved (*1)
20H/24H
03H/04H 0106H Reserved (*1)
20H/24H
03H/04H 0107H Reserved (*1)
20H/24H
03H/04H 0108H Reserved (*1)
20H/24H
03H/04H 0109H CT1 current value
20H/24H
20H/24H
20H/24H
20H/24H

03H/04H
03H/04H
03H/04H
03H/04H

010AH
010BH
010CH
010DH

Reserved (*1)
Reserved (*1)
Reserved (*1)
Status flag 1

Data
PV (Process variable)
Current OUT1 MV (MV1)
Current OUT2 MV (MV2)
Current SV (desired value)CT1 current value (current value when
OUT1 is ON)

0000 0000 0000 0000
215
to
20
20 digit: OUT1
0: OFF 1: ON(Current output: Unfixed)
21 digit: OUT2
0: OFF 1: ON(Current output: Unfixed)
2 digit: Alarm 1 output
2
0: OFF 1: ON
3 digit: Alarm 2 output
2
0: OFF 1: ON
4 digit: Alarm 3 output
2
0: OFF 1: ON
5 digit: Alarm 4 output
2
0: OFF 1: ON
6 digit: Heater burnout alarm output
2
0: OFF 1: ON(When sensor burnout, 0: OFF)27 digit: Loop break alarm output
0: OFF 1: ON
28 digit: Oversclae
0: OFF 1: ON
29 digit: Underscale
0: OFF 1: ON
210 digit: Not used (Always 0)
211 digit: During AT
0: OFF 1: During AT
12 digit: Not used (Always 0)2
213 digit: Controller/Converter
0: Controller 1: Converter
214 digit: Not used (Always 0)
215 digit: Change in key operation
0: No 1: Yes

33

ShinkoCommandType
20H/24H

MODBUS
Function
Data Item
Code
03H/04H 010EH Status flag 2

Data0000 0000 0000 0000
215
to
20
20 digit: Event input DI1
0: OFF 1: ON
1
5
2 to 2 digits: Reserved
26 digit: Unit status
0: PV/SV Display mode
1: Setting mode
7
2 digit: Warm-up
0: Finished 1: Warm-up
8
9
2 to 2 digits: Reserved
210 digit: Auto/Manual control
0: Automatic 1: Manual
211 to 215 digits: Reserved

20H/24H
20H/24H
20H/24H
20H/24H

03H/04H
03H/04H
03H/04H
03H/04H

010FH
0110H
0111H
0112H

Reserved (*1)
Reserved (*1)
Software version
Unit model information 1

Software version No.
0000 0000 0000 0000
215
to
20
20 digit: Event input DI1 Enabled/Disabled
0: Disabled 1: Enabled
21 digit: External setting input
Enabled/Disabled
0: Disabled 1: Enabled
2 digit: Alarm 1 function Enabled/Disabled
2
0: Disabled 1: Enabled
3 digit: Alarm 2 function Enabled/Disabled
2
0: Disabled 1: Enabled
4 digit: Alarm 3 function Enabled/Disabled
2
0: Disabled 1: Enabled
5 digit: Alarm 4 function Enabled/Disabled
2
0: Disabled 1: Enabled
6 digit: Heater burnout alarm output
2
Enabled/Disabled
0: Disabled 1: Enabled
27 digit: Loop break alarm output
Enabled/Disabled
0: Disabled 1: Enabled
8 digit: Heater burnout alarm output
2
rated current (5A)
0: 10A, 20A, 50A 1: 5A
29 digit: Heater burnout alarm output
rated current (10A)
0: 5A, 20A, 50A 1: 10A
10 digit: Heater burnout alarm output
2
rated current (20A)
0: 5A, 10A, 50A 1: 20A
211 digit: Heater burnout alarm output
rated current (50A)
0: 5A, 10A, 20A 1: 50A
12
15
2 to 2 digits: Not used (Always 0)

34

ShinkoCommandType
20H/24H

MODBUS
FunctionCode
03H/04H 0113H

Data Item

Data

Unit model information 20000 0000 0000 0000
215
to
20
20 to 22 digits: Model
0: xxD
1: xxR (Vertical type)
2: xxM
3: xxS
4: xxL
5: xxR (Horizontal type)3
4
2 to 2 digits: OUT1 output type
0: R/M (Relay contact)
1: S/M (Non-contact voltage)
2: A/M (Direct current)
5
15
2 to 2 digits: Not used (Always 0)(*1) For ‘Reserved’ items, if a Single/Multiple piece(s) of data Read is/are executed, acknowledgement
will be returned (but data is 0).
If a Single/Multiple piece(s) of data Write is/are executed, acknowledgement will be returned, anddata will be discarded.
(*2) For ‘Not used’ items, if a Single/Multiple piece(s) of data Read/Write is executed, Error code 1 (31H,
Shinko protocol) or Exception code 2 (02H, MODBUS protocol) will be returned.
(*3) For 00E5H (Manual control MV), if Write is executed for the following, Error code 3 (33H, Shinko
protocol) or Exception code 3 (03H, MODBUS protocol) will be returned:• For ON/OFF control action, if Write is executed for any value other than OUT1 low limit value,
OUT1 high limit value• When Heating side (in Heating/Cooling control) is ON/OFF control, and
if Write is executed for any value other than OUT1 low limit value, OUT1 high limit value on Heatingside, or if Write is executed for any value other than OUT2 low limit value, OUT2 high limit value on
Cooling side
• When Cooling side (in Heating/Cooling control) is ON/OFF control, and
if Write is executed for any value other than [from OUT1 low limit value to OUT1 high limit value] on
Heating side, or if Write is executed for any value other than OUT2 low limit value, OUT2 high limit
value on Cooling side(*4) For 00FFH (Key operation change flag clearing), if Read is executed, Error code 1 (31H, Shinko
protocol) or Exception code 2 (02H, MODBUS protocol) will be returned.
If any value other than 0001H (Clear key operation change flag) is written, Error code 3 (33H,
Shinko protocol) or Exception code 3 (03H, MODBUS protocol) will be returned.

357.3 Data
7.3.1 Notes about Write/Read Command• The data (set value, decimal) is converted to a hexadecimal number.
Negative numbers are represented in 2's complement.
• When connecting multiple slaves, the address (instrument number) must not be duplicated.
• Do not use undefined Data items. If they are used, negative acknowledgement will be returned or arandom value will be written or read, resulting in malfunction.
• 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 (SV1) as an example: Data item in the sending message is 0001H, however,
MODBUS protocol Holding Register address is 40002 (1 + 40001).
7.3.2 Write Command• Setting range of each item is the same as that of keypad operation.
• When data (set value) has a decimal point, a whole number (hexadecimal) without a decimal point is used.
• Writing via software communication will be possible even in the set value lock status.
• If Lock 3 is selected in [Set value lock], the written data will not be saved in the non-volatile IC memory.
Therefore, if the power is turned off, they will return to their value before Lock 3.
• If an alarm type is changed in [Alarm type] (Data items 0023H, 0006H, 0007H, 0008H, 0009H), thealarm value (Data items 000BH, 0012H, 0014H, 0016H, 0018H) will default to 0 (zero). Alarm output
status will also be initialized.
• Even if options are not ordered, writing via software communication will be possible. However, theircommand contents will not function.
• Communication parameters such as Instrument Number, Communication Speed of the slave cannot
be written by software communication. They can only be set via the keypad. See p.3.
• When writing 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.
• Up to 1,000,000 (one million) entries can be stored in non-volatile IC memory.
If the number of writings exceeds the limit, the data will not be saved. So, do not change the set values
frequently via software communication. (If a value written via software communication is the same as
the value before the writing, the value will not be written in non-volatile IC memory.)
7.3.3 Read Command• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal point
is used for a response.
7.4 Negative Acknowledgement
The slave will return Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS protocol)in the following case:• When non-existent data item is read or written.
The slave will return Error code 3 (33H, Shinko protocol) or Exception code 3 (03H, MODBUS protocol)in the following case:• When a value out of the setting range is written.
The slave will return Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, MODBUS
protocol) in the following cases:• When 0001H (AT Perform) is written at Data item 0003H or 00E6H (AT Perform/Cancel) during PI
control or ON/OFF control action• While AT is performing, and if 0001H (AT Perform) is written at Data item 0003H or 00E6H (ATPerform/ Cancel)• When Write is executed for Manual control MV (00E5H) during automatic control
The slave will return Error code 5 (35H, Shinko protocol) or Exception code 18 (12H, MODBUS
protocol) in the following case:• During setting mode by keypad operation
36

7.5 Notes on Programming Monitoring Software
7.5.1 How to Speed up the Scan Time
When monitoring multiple units of the controller, set the program so that the requisite minimum piecesof data such as Data item 0080H or 0100H (PV), Data item 0081H or 0101H (OUT1 MV), Data item
0082H or 0102H (OUT2 MV), Data item 0085H (Status flag), Data item 010DH (Status flag 1), can beread. For other data, set the program so that they can be read only when their set value has changed.
This will speed up the scan time.
7.5.2 How to Read the Set Value Changes Made by Front Keypad Operation
If any set value is changed by the keypad operation, the controller sets 0085H (Status flag) or 010DH(Status flag 1, 215: Change in key operation) to “1 (Yes)”.
There are 2 methods of reading the set value changes made by front keypad.
(1) Reading method 1
1 On the monitoring software side, check that 0085H (Status flag) or 010DH (Status flag 1, 215:
Change in key operation) has been set to “1 (Yes)”, then read all set values.
2 Clear 0085H (Status flag) or 010DH (Status flag 1, 215: Change in key operation), by writing 0001H(Clear key operation change flag) at Data item 0070H or 00FFH (Key operation change flagclearing).
If 0001H (Clear key operation change flag) is written at Data item 0070H or 00FFH (Key operation
change flag clearing) during the setting mode of the controller, Error code 5 (35H, Shinko protocol) or
Exception Code 18 (12H, MODBUS protocol) will be returned as a negative acknowledgement. And
0085H (Status flag) or 010DH (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 0085H (Status flag) or 010DH (Status flag 1, 215:
Change in key operation) has been set to “1 (Yes)”, then write 0001H (Clear key operation changeflag) at Data item 0070H or 00FFH (Key operation change flag clearing).
2 Set the program depending on the 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 Data item
0080H or 0100H (PV), 0081H or 0101H (OUT1 MV), 0082H or 0102H (OUT2 MV), 0085H(Status flag), 010DH (Status flag 1), then return 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.
7.5.3 How to Read PID Parameters after AT Finishes
While AT is performing, this controller sets 0085H (Status flag) or 010DH (Status flag 1, 211: During AT)
to “1 (During AT)”.
After AT is finished, PID parameters are updated.
On the monitoring software side, check that 0085H (Status flag) or 010DH (Status flag 1, 211: DuringAT) has been set to “0 (OFF)”, then read parameters such as P, I, D, ARW.
7.5.4 Note When Sending All Set Values Simultaneously• When changing alarm types at Data item 0023H, 0006H, 0007H, 0008H or 0009H (Alarm type), thealarm values will default to 0 (zero).
First, send the selected alarm type, then send each alarm value.
• When changing input types at Data item 0044H or 0002H (Input type), the set values such as SV1,
OUT1 proportional band, Alarm value will be initialized.
First, send the selected input type, then send other set values.
377.6 When Communicating with a PLC
To communicate with a PLC, use the SIF-600, Shinko PLC Interface Unit.
No programming is needed for connection. However, Shinko protocol Multiple pieces of data Read (24H)
and Multiple pieces of data Write (54H) are not available.
PLCs corresponding to the SIF-600, its manufacturer and host link units:
PLC manufacturer
Mitsubishi Electric Corp.

PLC model
MELSEC Q, QnA series (*)
MELSEC FX series (*)

Omron Corp.

SYSMAC CJ series

Keyence Corp.
Yokogawa Electric Corp.
Fuji Electric Co., Ltd.

KV
FA-M3
MICREX-SX series

Host link unit model
AJ71UC24, A1SJ71UC24-R2/R4/PRF
A1SJ71C24-R2/R4/PRF, QJ71C24
CS1W-SCU21-V1
CJ1W-SCU21, CJ1W-SCU41
KV-L20V
F3LC11-2N, F3LC11-1F, F3LC12-1F
NP1L-RS1, NP1L-RS2, NP1L-RS3, NP1L-RS4(*) Models with compatible QR/QW communication commands (MC protocol 1C Format 4).

38

8. SV Digital Transmission

Step SV can be received from the connected Shinko programmable controllers PCA1 or PCB1 (on which‘SV digital transmission’ should be selected in [Communication protocol]).

8.1 Wiring
When connecting to the PCB1, connect YA (-) to YA (-), YB (+) to YB (+), SG (PCB1) to COM (DCL-33A)
respectively.
Up to 31 units of the DCL-33A can be connected.
The following shows a connection example of PCB1 and DCL-33A (Fig. 8.1-1).
PCB1

DCL-33A (Max. 31 units)
10 YA(-)
11 YB(+)
12 SG

CDM (Sold separately)

CDD or CPP (Sold separately)(Fig. 8.1-1)
8.2 Setting Method of Controllers(1) Setting the PCB1
Set the following. Refer to the Instruction Manual for the PCB1.
• Select “SV digital transmission (Shinko protocol)” in [Communication protocol].
• Select 9600 bps, 19200 bps or 38400 bps in [Communication speed].
(2) Setting the DCL-33A
Check the following settings. (Refer to the Instruction Manual for the DCL-33A.)• Shinko protocol has been selected in [Communication protocol].
• Communication speed of the DCL-33A is identical with that of PCB1 (9600 bps, 19200 bps
or 38400 bps).
(3) The SV Digital Transmission starts.
Enter the program values on the PCB1, and press the RUN key to perform program control.
Step SV of the PCB1 will be transmitted to the DCL-33A.
During Program control STOP (in Standby), 0 (zero) is sent to the DCL-33A.
39

9. Specifications
Cable length:

1.2 km (Max.) Cable resistance: Within 50(Terminators are not necessary,
minimum on both sides.)but if used, use 120
Communication line:
EIA RS-485
Communication method: Half-duplex communication
Communication speed: 2400/4800/9600/19200/38400 bps (Selectable by keypad) (Default: 9600 bps)
Synchronization method: Start-stop synchronization
Code form:
ASCII, binaryCommunication protocol: Shinko protocol/MODBUS ASCII/MODBUS RTU (Selectable by keypad)(Default: Shinko protocol)
Data format:
Communication protocol Shinko Protocol
MODBUS ASCIIMODBUS RTU
Start bit1
1
1
Data bit
7
7
8
ParityEven
Even (No parity, Odd)
No parity (Even, Odd)
Selectable
Selectable
Stop bit
1
1 (2)
1 (2)
Selectable
Selectable
Error correction: Command request repeat system
Error detection: Parity check, checksum (Shinko protocol), LRC (MODBUS ASCII), CRC-16 (MODBUS RTU)

10. 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 failure
Check if any of the following have occurred.
Imperfect contact between the communication cable and the connector, or between thecommunication connector and instrument port
Incorrect wiring of the communication cable and/or connector.
Communication speed of the slave does not match that of the master.
The data bit, parity and stop bit of the master do not correspond to those of the slave.
The instrument number (address) of the slave does not correspond to that of the command.
The instrument numbers (addresses) are duplicated in multiple slaves.
Make sure that the program is appropriate for the transmission timing.

• Problem: Although communication is occurring, the response is negative acknowledgement.
Check if any of the following have occurred.
A non-existent command code has been sent.
The Write command data exceeds the setting range of the slave.
The DCL-33A cannot be written when functions such as AT are performing.
The DCL-33A is in front keypad operation setting 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/
URL:
Tel : +81-72-727-6100
E-mail:overseas@shinko-technos.co.jp
Fax: +81-72-727-7006
40