BCD2, BCR2, BCS2 (C5W, C5)

COMMUNICATION INSTRUCTION MANUAL

No. BCx2CE6 2019.12
This manual contains instructions for communication functions of the BCD2, BCR2, BCS2.
Serial communication and Console communication cannot be used together.
When performing Serial communication, remove the tool cable (CMD-001) from the USB port of the PC andconsole connector of the BCD2, BCR2, BCS2.
When performing Console communication, it is not required to remove the Serial communication cables.
However, do not send a command from the master side.

1. System Configuration

1.1 When Using USB Communication Cable CMC-001-1 (sold separately)
Host computer
USB communication cable
CMC-001-1 (sold separately)
No. 0

BCS2
No. 1

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

BCS2

No. 0

No. 1

(Fig. 1.2-1)

1

No. 302. Wiring

2.1 When Using USB Communication Cable CMC-001-1 (sold separately)
USB communication cable
CMC-001-1 (sold separately)

YA(-)
YB(+)
COM

BCS2

BCR2, BCD2

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG

Host computer
USB port
Shield wireFG

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG

Shield wireFG

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG(Fig. 2.1-1)
2.2 When Using Communication Converter IF-400 (sold separately)
Communication converter IF-400 (sold separately)
RS-232C
RS-485
4
3
1
6

BCS2

BCR2, BCD2

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG

Shieldwire
Shield wire
⑯ YA(-)⑰ YB(+)⑱ SG
Host computer
D-sub 9-pin connector⑩ YA(-)⑪ YB(+)⑫ SG

Shield wire
⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG(Fig. 2.2-1)
Shield wire
Connect only one end of the shield to the FG to avoid a ground loop. If both ends of the shield wire areconnected to the FG, the circuit will be closed, resulting in a ground loop. This may cause noise. Be sureto ground the FG terminal.
Recommended cable: OTSC-VB 2PX0.5SQ (made by Onamba Co., Ltd.) or equivalent (Use a twisted
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 toa personal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator to the communication line because each BCD2, BCR2, BCS2 hasbuilt-in pull-up and pull-down resistors.

33. Setting Communication Parameters
Set communication parameters in Engineering mode 1.
andkeys (in that order) together for approx. 3 seconds
To enter Engineering mode 1, press and hold thein RUN mode.
Use theor
key for settings (or making a selection).
key.
To register the set data, use theSet each communication parameter following the procedure below.
RUN mode
PV/SV Display+(3 sec)Engineering mode 1
Set value lock
(Several times)
Communication protocol

Characters,
Factory Default

Setting Item, Function, Setting Range
Communication protocol• Selects communication protocol.
• Selection item:
Shinko protocol
MODBUS ASCIIMODBUS RTU
Shinko protocol (JC command allocated)
MODBUS ASCII (JC command allocated)
MODBUS RTU (JC command allocated)
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.
• Selection item:
9600 bps
19200 bps
38400 bps
Data bit/Parity• Selects data bit and parity.
• Selection item:
8 bits/No parity
7 bits/No parity
8 bits/Even
7 bits/Even
8 bits/Odd
7 bits/Odd

4Characters,
Factory Default

Setting Item, Function, Setting Range
Stop bit• Selects the stop bit.
• Selection item:
1 bit
2 bitsResponse delay time
• Response from the controller can be delayed after receiving command from the hostcomputer.
• Setting range: 0 to 1000 ms
SVTC bias• Step SV can be received from the connected Shinko programmable controllers PCA1or PCB1. (Select ‘SV digital transmission’ in [Communication protocol] on the PCA1 or
PCB1.)
Refer to Section ‘8. SV Digital Transmission’ on p.46.
• SV adds SVTC bias value to the step SV.
• Setting range: 20% of input span
DC voltage, current inputs: 20% of scaling span (*)
Available only when Shinko protocol is selected in [Communication protocol].

(*) The placement of the decimal point follows the selection.

(Multiple times)
RUN mode
PV/SV Display
Settings are now complete.

54. Communication Procedure
Communication starts with command transmission from the host computer (hereafter Master) andends with the response of the BCx2 (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 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 toprovide 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 fromthe 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 toprovide an idle status (mark status) transmission period of 1 ms or more (*) before sending the response toensure synchronization on the receiving side.
The slave is arranged so as to disconnect the transmitter from the communication line within a 1 charactertransmission period after sending the response.
(*) Can be set in [Response delay time] within a range of 0 to 1000 ms. (See p.5.)6

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 (8 bits) Selectable
Parity: Even (No parity, Odd) Selectable
Stop bit: 1 bit (2 bits) Selectable
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 number of characters.
(1) Write command• Write a single piece of data
Sub
HeaderCommand
Data
AddressData
address
Checksum(02H)
type (50H)
item
(20H)
1
1
1
1
4
4
2
• Write multiple pieces of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1
n: Amount of data
(2) Read command• Read a single piece of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1
• Read multiple pieces of data
Sub
HeaderAddress
address
(02H)
(20H)
1
1
1

Data
item

Data

Checksum

Delimiter
(03H)

1

4

4xn

2

1

Commandtype (20H)

Data
item

Checksum

Delimiter
(03H)

1

4

2

1

Commandtype (24H)

Data
item

1

4

• Response to ‘Read multiple pieces of data’
Sub
HeaderCommandAddress
address(06H)
type (24H)
(20H)
1
1
1
1
n: Amount of data
Checksum2

1

Commandtype (54H)(3) Response with data
• Response to ‘Read a single piece of data’Sub
Command
Headeraddress
Addresstype (20H)
(06H)
(20H)
1
1
1
1

(4) Acknowledgement
HeaderAddress(06H)
1
1

Delimiter(03H)

Delimiter
(03H)
1
7

Amount ofRead datan4

Checksum

Delimiter
(03H)

2

1

Data
item

Data

Checksum

Delimiter
(03H)

4

4

2

1

Data
item

Data

Checksum

Delimiter
(03H)

4

4xn

2

1

(5) Negative acknowledgement
HeaderError
Address
(15H)
code
1
1
1

Checksum
2

Delimiter(03H)
1

Header: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: Code to discern Write command and Read command.
Command
Type
20H
24H

Contents

Description

Read a single piece of data
Read multiple pieces of data

50H
54H

Write a single piece of data
Write multiple pieces of data

Reads a single piece of data.
Reads consecutive multiple piecesof data. (Amount of data: Max. 100)
Writes a single piece of data.
Writes consecutive multiple piecesof data. (Amount of data: Max. 100)

Notes about Reading/Writing multiple pieces of data
When reading/writing multiple pieces of data, as it takes time until slave sends response
data, the master determines no response time based on timeout period below after
sending a command.
Timeout period calculation: 6 ms x Amount of data + Response delay time (*)(*) Refer to Response delay time on p.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. 26 to 40)
The contents of data (values) differ depending on the Write command.
Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to ‘7. Communication Command Table’. (pp. 26 to 40)
2-character data to detect communication errors.
Refer to ‘5.3 Checksum Calculation’ on p.9.
Control code to represent the end of command.
ASCII code ETX (03H) fixed
Represents an error type using ASCII.
Error CodeContents
1 (31H)
Non-existent command
2 (32H)
Not used
3 (33H)
Value outside the setting range
4 (34H)
Status unable to be written (e.g. AT is performing.)
5 (35H)During setting mode by keypad operation

8

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]
SV1 (0001H): 600 (0258H)
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]0010 0000
20H
0010 0000
20H
0101 0000
50H
0011 0000
30H
0011 0000
30H
0011 0000
30H
0011 0001
31H
0011 0000
30H
0011 0010
32H
0011 0101
35H
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)

903H

5.4 Command Example
Numerals written below the command represent number of characters.
(1) Read [Address 1, PV (0100H)]• Read command from the master
Header Address
Sub Command
Data item
Checksum Delimiter
address
type[0100H](02H) (21H)(20H)(20H) (30H 31H 30H 30H) (44H 45H) (03H)
1
1
1
1
4
2
1
• A response from the slave in normal status [When PV=600 (0258H)]
Header Address
Sub Command
Data item
Data
Checksum Delimiter
address
type[0100H][0258H]
(06H)
(21H)
(20H)
(20H) (30H 31H 30H 30H) (30H 32H 35H 38H) (30H 46H) (03H)
1
1
1
1
4
4
2
1
(2) Write [Address 1, SV1 (0001H)]• Write command from the master [when writing SV1 to 600 (0258H)]
Header Address
Sub Command
Data item
Data
Checksum Delimiter
address
type[0001H][0258H]
(02H)
(21H)
(20H)
(50H) (30H 30H 30H 31H) (30H 32H 35H 38H) (44H 46H) (03H)
1
1
1
1
4
4
2
1
• A response from the slave in normal status
Header Address Checksum Delimiter
(06H)
1

(21H)
1

(44H 46H)
2

(03H)
1

(3) Read [Address 1, SV1 (0001H)]• Read command from the master
Header Address
Sub Command
Data item
Checksum Delimiter
address
type[0001H](02H) (21H)(20H)(20H) (30H 30H 30H 31H) (44H 45H) (03H)
1
1
1
1
4
2
1
• A response from the slave in normal status [When SV1=600 (0258H)]
Header Address
Sub Command
Data item
Data
Checksum Delimiter
address
type[0001H][0258H]
(06H)
(21H)
(20H)
(20H) (30H 30H 30H 31H) (30H 32H 35H 38H) (30H 46H) (03H)
1
1
1
1
4
4
2
1

10

(4) Write (Address 1, Program pattern data) (Write multiple pieces of data)
Example of program pattern setting
Step
SV ( )
Time
Wait value ( )

1
200
1:00
10

2
200
2:00
0

3
300
0:30
10

4
300
1:00
0

5
0
2:00
0

0:30

1:00

2:00

300
200
0
2:00
1:00
Program control starts(Fig. 5.4-1)
When writing the above program pattern, Command data in the message becomes as follows.
Data is converted to hexadecimal.
Data Item
Data
Data (Converted to Hexadecimal)
1000H Step 1 SV
200
00C8H
1001H Step 1 time
60 minutes (1:00)
003CH
1002H Step 1 wait value
10000AH
1003H Step 2 SV
200
00C8H
1004H Step 2 time
120 minutes (2:00)
0078H
1005H Step 2 wait value
00000H
1006H Step 3 SV
300
012CH
1007H Step 3 time
30 minutes (0:30)
001EH
1008H Step 3 wait value
10000AH
1009H Step 4 SV
300
012CH
100AH Step 4 time
60 minutes (1:00)
003CH
100BH Step 4 wait value
00000H
100CH Step 5 SV
00000H
100DH Step 5 time
120 minutes (2:00)
0078H
100EH Step 5 wait value
00000H• Write command from the master (When writing the above program pattern data)
Header Address
Sub Command
Data item
address
type[1000H](02H) (21H)(20H)(54H) (31H 30H 30H 30H)
1
1
1
1
4
Data
[00C8003C000A00C800780000012C001E000A012C003C0000000000780000H](30H 30H 43H 38H 30H30H 33H 43H ・・・・・・30H 30H 37H 38H 30H 30H 30H 30H)
60 (4 x 15)
Checksum Delimiter(38H 36H)
2
11

(03H)
1

• Response from the slave in normal status
Header Address Checksum Delimiter
(06H)
1

(21H)
1

(44H 46H)
2

(03H)
1

(5) Read (Address 1, Program pattern data) (Read multiple pieces of data)• Read command from the master [Amount of data: 15 (000FH), when reading the program patterndata on p.11]
Header Address
Sub Command
Data item
Amount of read data Checksum Delimiter
address
type[1000H]15 [000FH](02H) (21H)(20H)(24H) (31H 30H 30H 30H) (30H 30H 30H 46H) (30H 34H) (03H)
1
1
1
1
4
4
2
1
• Response from the slave in normal status
Header Address
Sub Command
Data item
address
type[1000H](06H) (21H)(20H)(24H) (31H 30H 30H 30H)
1
1
1
1
4
Data
[00C8003C000A00C800780000012C001E000A012C003C0000000000780000H](30H 30H 43H 38H 30H30H 33H 43H ・・・・・・30H 30H 37H 38H 30H 30H 30H 30H)
60 (4 x 15)
Checksum Delimiter(42H 36H)
2

Response data becomes as follows.
Data Item
Data
1000H Step 1 SV
200
1001H Step 1 time
60 minutes (1:00)
1002H Step 1 wait value
101003H Step 2 SV
200
1004H Step 2 time
120 minutes (2:00)
1005H Step 2 wait value
01006H Step 3 SV
300
1007H Step 3 time
30 minutes (0:30)
1008H Step 3 wait value
101009H Step 4 SV
300
100AH Step 4 time
60 minutes (1:00)
100BH Step 4 wait value
0100CH Step 5 SV
0100DH Step 5 time
120 minutes (2:00)
100EH Step 5 wait value
0

12

(03H)
1

Data (Converted to Hexadecimal)
00C8H
003CH
000AH
00C8H
0078H
0000H
012CH
001EH
000AH
012CH
003CH
0000H
0000H
0078H
0000H

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 (8 bits) (Selectable)
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 9600 bps, 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 BCx2 assumes that transmission
from the master is finished, which results in a communication error, and will not return a 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 message 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 9600 bps, 19200 bps: 3.5 character transmission times,
Communication speed 38400 bps: 1.75 ms)
Data section: Max. 252 bytes
3.5 idle
Slave
FunctionError check3.5 idleDatacharacters addresscode
CRC-16characters13(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 0 (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.
Function
Sub-Function
Type
Contents
Code
Code
Reads a single or multiple piece(s) of data
03 (03H)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 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
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.)
18 (12H)
Shinko protocol error code 5(During setting mode by keypad operation)(3) Data
Data differs depending on the function code.
A request message from the master is composed of a data item, amount of data and setting data.
A response message from the slave is composed of the byte count, data and exception 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.26 to 40).
(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.
14

4

5
6

Add a value of 1 to X. This is assumed as X.
Set X as an LRC to the end of the message.
Convert the whole message to ASCII characters.

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 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 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.

15

6.4 Message Example
6.4.1 ASCII Mode
Numerals written below the command represent the number of characters.
(1) Read [Slave address 1, PV (0100H)]• A request message from the master
HeaderSlave
Function
Data item
Amount of data
addresscode[0100H][0001H](3AH) (30H 31H) (30H 33H) (30H 31H 30H 30H) (30H 30H 30H 31H)
1
2
2
4
4
• Response message from the slave in normal status [When PV=600
Slave
Functionaddresscode(3AH) (30H 31H) (30H 33H)

Header1

2

2

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

Error check
LRC(46H 41H)
2

Delimiter
CR+LF(0DH 0AH)
2(0258H)]

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

Error check
LRC(41H 30H)

Delimiter
CR+LF(0DH 0AH)

422(2) Write [Slave address 1, SV1 (0001H)]• A request message from the master [When writing SV1 to 600 (0258H)]
Header Slave
Function
Data item
Data
Error check
Delimiter
address
code[0001H][0258H]
LRC
CR+LF(3AH) (30H 31H) (30H 36H) (30H 30H 30H 31H) (30H 32H 35H 38H)
(39H 45H)(0DH 0AH)
1
2
2
4
4
2
2
• Response message from the slave in normal status
Header Slave
Function
Data item
Data
Error check
Delimiter
address
code[0001H][0258H]
LRC
CR+LF(3AH) (30H 31H) (30H 36H) (30H 30H 30H 31H) (30H 32H 35H 38H)
(39H 45H)(0DH 0AH)
1
2
2
4
4
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 [86H (38H 36H)].
The exception code 03H (30H 33H: Value out of the setting range) is returned (error).
Header Slave
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
(3) Read [Slave address 1, SV1 (0001H)]• A request message from the master
Header Slave
Function
Data item
Amount of data
address
code[0001H][0001H](3AH) (30H 31H) (30H 33H) (30H 30H 30H 31H) (30H 30H 30H 31H)
1
2
2
4
4
• Response message from the slave in normal status [When SV1=600
Slave
Functionaddresscode(3AH) (30H 31H) (30H 33H)

Header1

2

2

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

Error check
LRC(46H 41H)
2

Delimiter
CR+LF(0DH 0AH)
2(0258H)]

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

Error check
LRC(41H 30H)

Delimiter
CR+LF(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 (38H 33H)].
The exception code 02H (30H 32H: Non-existent data address) is returned (error).
Header Slave
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
16

(4) Write (Slave address 1, Program pattern data) (Write Multiple pieces of data)
Example of program pattern setting
Step
SV ( )
Time
Wait value ( )

1
200
1:00
10

2
200
2:00
0

3
300
0:30
10

4
300
1:00
0

5
0
2:00
0

0:30

1:00

2:00

300
200
0
2:00
1:00
Program control starts(Fig. 6.4.1-1)
When writing the above program pattern, Data in the message becomes as follows.
Amount of data: 15 (000FH)
Byte count: 30 (1EH)
Data is converted to hexadecimal.
Data Item
Data
Data (Converted to Hexadecimal)
1000H Step 1 SV
200
00C8H
1001H Step 1 time
60 minutes (1:00)
003CH
1002H Step 1 wait value
10000AH
1003H Step 2 SV
200
00C8H
1004H Step 2 time
120 minutes (2:00)
0078H
1005H Step 2 wait value
00000H
1006H Step 3 SV
300
012CH
1007H Step 3 time
30 minutes (0:30)
001EH
1008H Step 3 wait value
10000AH
1009H Step 4 SV
300
012CH
100AH Step 4 time
60 minutes (1:00)
003CH
100BH Step 4 wait value
00000H
100CH Step 5 SV
00000H
100DH Step 5 time
120 minutes (2:00)
0078H
100EH Step 5 wait value
00000H• A request message from the master (When writing the above program pattern data)
Header Slave
Function
Data item
address
code[1000H](3AH) (30H 31H) (31H 30H) (31H 30H 30H 30H)
1
2
2
4
Data
[000F1E00C8003C000A00C800780000012C001E000A012C003C0000000000780000H](30H 30H 30H 46H 31H 45H 30H 30H ・・・・・・30H 30H 37H 38H 30H 30H 30H 30H)
66
Error check
LRC(32H 45H)
2

17

Delimiter
CR+LF(0DH 0AH)
2• A response message from the slave in normal status
Header Slave
Function
Data item
Data
address
code[1000H][000FH](3AH) (30H 31H) (31H 30H) (31H 30H 30H 30H) (30H 30H 30H 46H)
1
2
2
4
4

Error check
LRC(44H 30H)
2

Delimiter
CR+LF(0DH 0AH)
2(5) Read (Slave address 1, Program pattern data) (Read multiple pieces of data)• A request message from the master (When reading the program pattern data on p.17)
Header Slave
Function
Data item
Amount of data
Error checkaddress
code[1000H][000FH]
LRC(3AH) (30H 31H) (30H 33H) (31H 30H 30H 30H) (30H 30H 30H 46H)
(44H 44H)
1
2
2
4
4
2

Delimiter
CR+LF(0DH 0AH)
2• Response message from the slave in normal status
Response
Header Slave
Functionbyte countaddresscode[1EH](3AH) (30H 31H) (30H 33H)
(31H 45H)
1
2
2
2
Data
[00C8003C000A00C800780000012C001E000A012C003C0000000000780000H](30H 30H 43H 38H 30H 30H 33H 43H ・・・・・・30H 30H 37H 38H 30H 30H 30H 30H)
60
Error check
LRC(35H 41H)
2
Data in the response message becomes as follows.
Data Item
Data
1000H Step 1 SV
200
1001H Step 1 time
60 minutes (1:00)
1002H Step 1 wait value
101003H Step 2 SV
200
1004H Step 2 time
120 minutes (2:00)
1005H Step 2 wait value
01006H Step 3 SV
300
1007H Step 3 time
30 minutes (0:30)
1008H Step 3 wait value
101009H Step 4 SV
300
100AH Step 4 time
60 minutes (1:00)
100BH Step 4 wait value
0100CH Step 5 SV
0100DH Step 5 time
120 minutes (2:00)
100EH Step 5 wait value
018

Delimiter
CR+LF(0DH 0AH)
2

Data (Converted to Hexadecimal)
00C8H
003CH
000AH
00C8H
0078H
0000H
012CH
001EH
000AH
012CH
003CH
0000H
0000H
0078H
0000H

6.4.2 RTU Mode
Numerals written below the command represent number of characters.
(1) Read [Slave address 1, PV (0100H)]• A request message from the master
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(03H)
(0100H)
1
1
2

Amount of data
(0001H)2• Response message from the slave in normal status
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(06H)
(0001H)
1
1
2

Data(0258H)2

3.5 idle
characters(0258H)]
Error check
CRC-16(B8DEH)2

3.5 idle
characters(0258H)]
Error check
CRC-16(D890H)2

3.5 idle
characters• Response message from the slave in normal status [When PV is 600
Slave
Function
Response
Data
3.5 idle
addresscodebyte countcharacters
(01H)
(03H)
(02H)
(0258H)1112(2) Write [Slave address 1, SV1 (0001H)]• A request message from the master [When SV1 is written to 600
Slave
Function
Data item
Data
3.5 idle
addresscodecharacters
(01H)
(06H)
(0001H)(0258H)1
1
2
2

Error check
CRC-16(85F6H)
2

Error check
CRC-16(D890H)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, and 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)1112(3) Read [Slave address 1, SV1 (0001H)]• A request message from the master
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(03H)
(0001H)
1
1
2

Data(0001H)
2

Error check
CRC-16(D5CAH)2• Response message from the slave in normal status [When SV1 is 600 (0258H)]
Slave
Function
Response
Data
Error check3.5 idle
addresscodebyte countCRC-16characters
(01H)
(03H)
(02H)
(0258H)(B8DEH)1
1
1
2
2

3.5 idle
characters

3.5 idle
characters• 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
Function Exception code
Error check3.5 idle
3.5 idle
addresscode
CRC-16characterscharacters
(01H)
(83H)
(02H)
(C0F1H)
1
1
1
2

19

(4) Write (Slave address 1, Program pattern data) (Write multiple pieces of data)
Program pattern setting example
Step
SV ( )
Time
Wait value ( )

1
200
1:00
10

2
200
2:00
0

3
300
0:30
10

4
300
1:00
0

5
0
2:00
0

0:30

1:00

2:00

300
200
0
2:00
1:00
Program control starts(Fig. 6.4.2-1)
When writing the above program pattern, Data in the message becomes as follows.
Amount of data: 15 (000FH)
Byte count: 30 (1EH)
Data is converted to hexadecimal.
Data Item
Data
Data (Converted to Hexadecimal)
1000H Step 1 SV
200
00C8H
1001H Step 1 time
60 minutes (1:00)
003CH
1002H Step 1 wait value
10000AH
1003H Step 2 SV
200
00C8H
1004H Step 2 time
120 minutes (2:00)
0078H
1005H Step 2 wait value
00000H
1006H Step 3 SV
300
012CH
1007H Step 3 time
30 minutes (0:30)
001EH
1008H Step 3 wait value
10000AH
1009H Step 4 SV
300
012CH
100AH Step 4 time
60 minutes (1:00)
003CH
100BH Step 4 wait value
00000H
100CH Step 5 SV
00000H
100DH Step 5 time
120 minutes (2:00)
0078H
100EH Step 5 wait value
00000H• A request message from the master (When writing the above program pattern data)
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(10H)
(1000H)1
1
2
Data(000F1E00C8003C000A00C800780000012C001E000A012C003C0000000000780000H)
33
Error check
CRC-16(13EEH)220

3.5 idle
characters• Response message from the slave in normal status
Slave
Function
Data item
3.5 idle
addresscodecharacters
(01H)
(10H)
(1000H)1
1
2

Data(000FH)
2

Error check
CRC-16(84CDH)2

3.5 idle
characters(5) Read (Slave address 1, Program pattern data) (Read multiple pieces of data)• A request message from the master (When reading the program pattern data on p.20)
Slave
Function
Data item
Amount of data
Error check3.5 idle
3.5 idle
addresscode
CRC-16characterscharacters
(01H)
(03H)
(1000H)(000FH)(010EH)1
1
2
2
2• Response message from the slave in normal status
Slave
Function
Response
3.5 idle
addresscodebyte countcharacters
(01H)
(03H)
(1EH)
1
1
1
Data
(00C8003C000A00C800780000012C001E000A012C003C0000000000780000H)
30Error check
CRC-16(F340H)
2
Data in the response message becomes as follows.
Data Item
Data
1000H Step 1 SV
200
1001H Step 1 time
60 minutes (1:00)
1002H Step 1 wait value
101003H Step 2 SV
200
1004H Step 2 time
120 minutes (2:00)
1005H Step 2 wait value
01006H Step 3 SV
300
1007H Step 3 time
30 minutes (0:30)
1008H Step 3 wait value
101009H Step 4 SV
300
100AH Step 4 time
60 minutes (1:00)
100BH Step 4 wait value
0100CH Step 5 SV
0100DH Step 5 time
120 minutes (2:00)
100EH Step 5 wait value
021

3.5 idle
characters

Data (Converted to Hexadecimal)
00C8H
003CH
000AH
00C8H
0078H
0000H
012CH
001EH
000AH
012CH
003CH
0000H
0000H
0078H
0000H

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
HeaderFunctionaddress(:)
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 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, 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-existent sub-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.
Function code
08H
1 ByteSub-function code 1 Byte
0000H fixedDatan x 2 Bytes Random value (Max. 100)22

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.
01 Product code (model)(e.g.) BCS2R00-00
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 check:16-bit data to detect communication errors.
Refer to Section ‘6.3 Message Configuration (4) Error Check (pp.14, 15).
6.5.2 Message Example
Message example in RTU mode are shown below.
Numerals written below the command 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)]
Slave
Function
Sub-function
Data
Error check3.5 idle
addresscode
code
CRC-16characters (01H)(08H)(0000H)(00C8003C000AH)(E7D9H)1
1
2
nx2
2• Response message from the slave in normal status (Echoes back the same message.)
Slave
Function
Sub-function
Data
Error check3.5 idle
addresscode
code
CRC-16characters (01H)(08H)(0000H)(00C8003C000AH)(E7D9H)
1
1
2
nx2
2

23

3.5 idle
characters

3.5 idle
characters(2) Read Slave address 1, Device identification information (Vendor name)• A request message from the master
Slave
Function
Sub-functionData
3.5 idle
addresscode
codecharacters (01H)
(2BH)
(0EH)
(0400H)11
1
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
Sub-function
3.5 idle
addresscode
codecharacters (01H)
(2BH)
(0EH)
1
1
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
1 ByteConformity level
1 ByteMore Follows
1 ByteNext Object ID
1 ByteNumber of Objects
1 ByteList of Object ID
1 ByteList of Object length
List of Object value
Object length

24

04H
81H
00H
00H
01H
00H
24(18H)
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)

3.5 idle
characters(3) Read Slave address 1, Device identification information (Product code)• A request message from the master
Slave
Function
Sub-functionData
3.5 idle
addresscode
codecharacters (01H)
(2BH)
(0EH)
(0401H)11
1
2

Error check
CRC-16(B2E7H)2

3.5 idle
characters• Response message from the slave in normal status (BCD2R00-01)
Slave
Function
Sub-function
3.5 idle
addresscode
codecharacters (01H)
(2BH)
(0EH)
1
1
1
Data
(0481000001010A424344325230302D3031H)
17
Data in the response message becomes as follows.
Data
Read Device ID code 1 Byte
1 ByteConformity level
1 ByteMore Follows
1 ByteNext Object ID
1 ByteNumber of Objects
1 ByteList of Object ID
1 ByteList of Object length
List of Object value
Object length

Error check
CRC-16(FDEEH)2

3.5 idle
characters

04H
81H
00H
00H
01H
01H
10(0AH)
B(42H)C(43H)
D(44H)
2(32H)
R(52H)
0(30H)
0(30H)-(2DH)
0(30H)
1(31H)• 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 isreturned.
Exception code 01H (Non-existent function) is returned (error).
Function Exception code
Error checkSlave
3.5 idle
3.5 idle
code
CRC-16
address
characterscharacters(ABH)(9EF0H)
(01H)
(01H)
1
1
1
2

25

7. Communication Command Table
Communication command can be selected in [Communication protocol].
(Shinko protocol),(MODBUS ASCII) or(MODBUS RTU) is selected, communication
If
commands (pp. 26 to 35) can be used.
If(Shinko protocol, JC command allocated),(MODBUS ASCII, JC command allocated) or(MODBUS RTU, JC command allocated) is selected, JC command (pp. 36 to 40) can be used.
7.1 Shinko Protocol / MODBUS ASCII / MODBUS RTU
7.1.1 A Single / Multiple Piece(s) of Data Read / Write Command(20/24/50/54H: 20H/24H/50H/54H, 03/06/10H: 03H/06H/10H)
ShinkoMODBUS
CommandFunction
Data Item
Data
Type
Code
20/24/50/54H 03/06/10H 0001H SV1
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 0002H Input type
0000H: K-200 to 1370
0001H: K-200.0 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-200.0 to 400.0
0008H: N-200 to 1300
0 to 1390
0009H: PL000AH: C(W/Re5-26) 0 to 2315
000BH: Pt100 -200.0 to 850.0
000CH: JPt100 -200.0 to 500.0000DH: Pt100 -200 to 850
000EH: JPt100 -200 to 500
000FH: K-328 to 2498
0010H: K-328.0 to 752.0
0011H: J-328 to 1832
0012H: R
32 to 3200
0013H: S
32 to 3200
0014H: B
32 to 3308
0015H: E-328 to 1472
0016H: T-328.0 to 752.0
0017H: N-328 to 2372
0018H: PL32 to 2534
0019H: C(W/Re5-26) 32 to 4199
001AH: Pt100 -328.0 to 1562.0
001BH: JPt100 -328.0 to 932.0001CH: Pt100 -328 to 1562
001DH: JPt100 -328 to 932
001EH: 4 to 20 mA DC -2000 to 10000001FH: 0 to 20 mA DC -2000 to 10000
0020H: 0 to 1 V DC
-2000 to 10000
0021H: 0 to 5 V DC
-2000 to 10000
0022H: 1 to 5 V DC
-2000 to 10000
0023H: 0 to 10 V DC -2000 to 10000
20/24/50/54H 03/06/10H 0003H Scaling high limit
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 0004H Scaling low limit
Set value (Decimal point ignored)
0000H: No decimal point
20/24/50/54H 03/06/10H 0005H Decimal point place
0001H: 1 digit after decimal point
0002H: 2 digits after decimal point
0003H: 3 digits after decimal point
26

ShinkoCommandType
20/24/50/54H

MODBUS
FunctionCode
03/06/10H

0006H

Event output EV1
allocation (*1)

20/24/50/54H

03/06/10H

0007H

Event output EV2
allocation (*1)

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

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

0008H
:
000AH

Reserved (*2):
Reserved (*2)

Data Item

Data

27

0000H: No event
0001H: Alarm output, High limit alarm
0002H: Alarm output, Low limit alarm
0003H: Alarm output, High/Low limits alarm
0004H: Alarm output, High/Low limits
independent alarm
0005H: Alarm output, High/Low limit range
alarm
0006H: Alarm output, High/Low limit range
independent alarm
0007H: Alarm output, Process high alarm
0008H: Alarm output, Process low alarm
0009H: Alarm output, High limit with standby
alarm
000AH: Alarm output, Low limit with standby
alarm
000BH: Alarm output, High/Low limits withstandby alarm
000CH: Alarm output, High/Low limits withstandby independent alarm
000DH: Heater burnout alarm output
000EH: Loop break alarm output
000FH: Time signal output
0010H: Output during AT
0011H: Pattern end output
0012H: Output by communication command
0000H: No event
0001H: Alarm output, High limit alarm
0002H: Alarm output, Low limit alarm
0003H: Alarm output, High/Low limits alarm
0004H: Alarm output, High/Low limits
independent alarm
0005H: Alarm output, High/Low limit range
alarm
0006H: Alarm output, High/Low limit range
independent alarm
0007H: Alarm output, Process high alarm
0008H: Alarm output, Process low alarm
0009H: Alarm output, High limit with standby
alarm
000AH: Alarm output, Low limit with standby
alarm
000BH: Alarm output, High/Low limits withstandby alarm
000CH: Alarm output, High/Low limits withstandby independent alarm
000DH: Heater burnout alarm output
000EH: Loop break alarm output
000FH: Time signal output
0010H: Output during AT
0011H: Pattern end output
0012H: Output by communication command
0013H: Heating/Cooling control
relay contact output

ShinkoCommandType
20/24/50/54H

MODBUS
FunctionCode
03/06/10H

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20/24/50/54H

Data Item

Data

000BH

Transmission output type03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H:
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H

000CH
000DH
000EH
000FH
0010H
0011H
0012H
0013H
0014H
0015H
0016H
:
001BH
001CH
001DH
001EH
001FH
0020H

Transmission output high limit
Transmission output low limit
SV1
SV2
SV3
SV4
EV1 alarm value (*1)
EV1 high limit alarm value (*1)
EV2 alarm value (*1)
EV2 high limit alarm value (*1)
Reserved (*2):
Reserved (*2)
Heater burnout alarm 1 value
Heater burnout alarm 2 value
Loop break alarm time
Loop break alarm band
Event input DI1 allocation

0000H: PV transmission
0001H: SV transmission
0002H: MV transmission
0003H: DV transmission
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)

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

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

0021H
0022H
0023H
0024H

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20/24/50/54H

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

0025H
0026H
0027H

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03/06/10H

0028H

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20/24/50/54H

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

0029H
002AH
002BH

Event input DI2 allocation
Reserved (*2)
Reserved (*2)
EV1 alarm value 0
Enabled/Disabled
EV1 alarm hysteresis
EV1 alarm delay time
EV1 alarm
Energized/De-energizedEV2 alarm value 0
Enabled/Disabled
EV2 alarm hysteresis
EV2 alarm delay time
EV2 alarm
Energized/De-energized28

Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value
Set value (Decimal point ignored)
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: Remote/Local
0008H: Program control RUN/STOP
0009H: Program control
Holding/Not holding
000AH: Program control
Advance function
000BH: Integral action Holding
Same as Event input DI1 allocation
0000H: Disabled
0001H: Enabled
Set value (Decimal point ignored)
Set value
0000H: Energized
0001H: De-Energized
0000H: Disabled
0001H: Enabled
Set value (Decimal point ignored)
Set value
0000H: Energized
0001H: De-EnergizedShinkoCommandType
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MODBUS
FunctionCode
03/06/10H:
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H
03/06/10H

002CH
:
003BH
003CH
003DH
003EH
003FH
0040H
0041H
0042H
0043H
0044H
0045H
0046H

Reserved (*2):
Reserved (*2)
OUT1 proportional band
Integral time
Derivative time
ARW
Manual reset
OUT1 proportional cycle
OUT1 ON/OFF hysteresis
OUT1 high limit
OUT1 low limit
OUT1 rate-of-change
OUT2 cooling method

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

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

0047H
0048H
0049H
004AH
004BH
004CH
004DH

OUT2 proportional band
OUT2 proportional cycle
OUT2 ON/OFF hysteresis
OUT2 high limit
OUT2 low limit
Overlap band/Dead band
Direct/Reverse action

20/24/50/54H

03/06/10H

004EH

Set value lock20/24/50/54H
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20/24/50/54H
20/24/50/54H

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

004FH
0050H
0051H
0052H
0053H
0054H
0055H
0056H
0057H

Sensor correction coefficient
Sensor correction
PV filter time constant
Response delay time
SVTC bias
External setting input high limit
External setting input low limit
Remote bias
SV Rise/Fall rate start type20/24/50/54H
20/24/50/54H
20/24/50/54H

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

0058H
0059H
005AH

SV rise rate
SV fall rate
Indication when control output
OFF

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

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

005BH
005CH

20/24/50/54H

03/06/10H

005DH

AT biasOutput status when input
errors occur
Auto/Manual after power ON

Data Item

29

Data

Set value (Decimal point ignored)
Set value
Set value
Set value
Set value (Decimal point ignored)
Set value
Set value (Decimal point ignored)
Set value
Set value
Set value
0000H: Air cooling
0001H: Oil cooling
0002H: Water coolingSet value (Decimal point ignored)
Set value
Set value (Decimal point ignored)
Set value
Set value
Set value (Decimal point ignored)
0000H: Reverse (Heating) action
0001H: Direct (Cooling) action
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
0004H: Lock 40005H: Lock 5
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
0000H: SV start
0001H: PV start
Set value (Decimal point ignored)
Set value (Decimal point ignored)
0000H: OFF indication
0001H: No indication
0002H: PV indication
0003H: PV indication + Any Alarm
activeSet value (Decimal point ignored)
0000H: Output OFF
0001H: Output ON
0000H: Automatic control
0001H: Manual control

ShinkoCommandType
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MODBUS
FunctionCode
03/06/10H
03/06/10H
03/06/10H
03/06/10H:
03/06/10H
03/06/10H

20/24/50/54H

Data Item

Data

005EH
005FH
0060H
0061H
:
006CH
006DH

Indication time
OUT1 MV preset value
OUT2 MV preset value
Reserved (*2):
Reserved (*2)
Step time unit

Set value
Set value (Decimal point ignored)
Set value (Decimal point ignored)

03/06/10H

006EH

Power restore action

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

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

006FH
0070H

Program start temperature
Program control start type20/24/50/54H
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20/24/50/54H
20/24/50/54H:
20/24/50/54H

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

0071H
0072H
0073H
0074H
0075H
0076H
0077H
0078H
:
008CH
008DH
:
00DFH

Number of repetitions
TS1 output step number
TS1 OFF time (*12)
TS1 ON time (*12)
TS2 output step number
TS2 OFF time (*12)
TS2 ON time (*12)
Reserved (*2):
Reserved (*2)
Not used (*3):
Not used (*3)

300000H: Hours:Minutes
0001H: Minutes:Seconds
0000H: Stops after power isrestored.
0001H: Continues (resumes) after
power is restored.
0002H: Suspends (on hold) after
power is restored.
Set value (Decimal point ignored)
0000H: PV start
0001H: PVR start
0002H: SV start
Set value
Set value
Set value
Set value
Set value
Set value
Set value7.1.2 A Single Piece of Data Read/Write Command
ShinkoMODBUS
CommandFunction
Data ItemType
Code
20H/50H
03H/06H
00E0H OUT/OFF key function
20H/50H

03H/06H

00E1H

Remote/Local

20H/50H

03H/06H

00E2H

Control output OFF function,
Auto/Manual control,
Program control

20H/50H

03H/06H

00E3H

20H/50H

03H/06H

00E4H

20H/50H
20H/50H

03H/06H
03H/06H

00E5H
00E6H

Program control
Holding/Not holding
Output by communicationcommandManual control MV (*4)
AT/Auto-reset Perform/Cancel

20H/50H

03H/06H

00E7H

Controller/Converter

20H/50H

03H/06H

00E8H

AT gain

7.1.3 A Single Piece of Data Write Command
ShinkoMODBUS
CommandFunction
Data Item
Type
Code
50H
06H
00E9H Program control
Advance function (*5)
50H
06H
00EAH Not used (*3)
:
:
:
:
50H
06H
00FDH Not used (*3)
50H
06H
00FEH Data clear (*6)
50H
06H00FFH Key operation change flagclearing (*7)

31

Data
0000H: Control output OFF function
0001H: Auto/Manual control
0002H: Program control
0000H: Local
0001H: Remote
When control output OFF function is
selected:
0000H: Control output ON
0001H: Control output OFF
When Auto/Manual control isselected:
0000H: Automatic control
0001H: Manual control
When Program control is selected:
0000H: Program control STOP
0001H: Program control RUN
0000H: Not holding
0001H: Holding
B0 EV1 output 0 : OFF, 1: ON
B1 EV2 output 0 : OFF, 1: ON
Set value
0000H: AT/AT on startup/ Auto-reset
Cancel0001H: AT/Auto-reset Perform
0002H: AT on Startup Perform
0000H: Controller
0001H: Converter
Set value (Decimal point ignored)

Data
0001H: Advance Perform

1234H: Clear data
0001H: Clear key operation changeflag7.1.4 Read Command
ShinkoMODBUS
CommandFunctionType
Code
20H/24H
03H/04H
20H/24H
03H/04H
20H/24H
03H/04H
20H/24H
03H/04H
20H/24H
03H/04H
20H/24H
03H/04H

Data Item
0100H
0101H
0102H
0103H
0104H
0105H

20H/24H
20H/24H

03H/04H
03H/04H

0106H
0107H

20H/24H

03H/04H

0108H

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

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

0109H
010AH
010BH
010CH
010DH

20H/24H

03H/04H

010EH

Data

PV
Read value (Decimal point ignored)
OUT1 MV
Read value (Decimal point ignored)
OUT2 MV
Read value (Decimal point ignored)
Current SV
Read value (Decimal point ignored)
Set value memory number
Read value
Remaining time when program Read value
control runs
Reserved (*2)
Step number when program
Read value
control runs
Number of repetitions when
Read value
program control runs
CT1 current value
Read value (Decimal point ignored)
CT2 current value
Read value (Decimal point ignored)
Reserved (*2)
Key operation changed item
Data item changed by key operation
Status flag 1
B0: OUT1 output
0: OFF
1: ON
B1: OUT2 output
0: OFF
1: ON
B2: EV1 output
0: OFF
1: ON
B3: EV2 output
0: OFF
1: ON
B4: Reserved:
B8: Reserved
B9: AT/ Auto-reset, AT on startup Perform/Cancel
0: Cancel
1: Perform
B10: AT/Auto-reset, AT on startup
0: AT/Auto-reset
1: AT on startup
B11: Heater burnout alarm (*9) 0: OFF
1: ON
B12: Loop break alarm
0: OFF
1: ON
0: OFF
1: ON
B13: Overscale (*9)
B14: Underscale (*9)
0: OFF
1: ON
B15: Change in key operation 0: No
1: YesStatus flag 2
B0: DI1 input
0: OFF
1: ON
B1: DI2 input
0: OFF
1: ON
B2: Reserved
B3: Reserved
B4: Not used, Always 0
B5: Unit status 1 (Program control)
0: Standby
1: Program control RUN
B6: Unit status 2 (Fixed value control)
0: PV/SV Display 1: Setting mode
B7: Warm-up 0: Finished 1: Warm-up
B8: USB connection
0: Standard connection 1: USB connection
B9: Control output OFF (Fixed value control)
0: Control output ON 1: Control output OFF
B10: Auto/Manual control 0: Automatic 1: Manual
B11: Control mode
0: Fixed value control 1: Program control
B12: Program control
0: Standby 1: RUN
B13: Wait function
0: OFF
1: ON
B14: Hold function
0: OFF
1: ON
B15: Pattern end function 0: OFF
1: ON

32

ShinkoCommandType
20H/24H

MODBUS
FunctionCode
03H/04H

010FH

Error status
flag 1 (*8)

20H/24H

03H/04H

0110H

Error status
flag 2 (*8)

20H/24H

03H/04H

0112H

Unit model
information 1

20H/24H

03H/04H

0113H

Unit model
information 2

Data Item

Data

33

B0: Error 01
0: OFF
1: ON
B1: Error 02
0: OFF
1: ON
B2: Reserved
B3: Reserved
B4: Error 05
0: OFF
1: ON
B5: Error 06
0: OFF
1: ON
B6: Error 07
0: OFF
1: ON
B7: Reserved
B8: Reserved
B9: Error 10
0: OFF
1: ON
B10: Reserved:
B15: Reserved
B0: Reserved
B1: Reserved
B2: Reserved
B3: Error 20
0: OFF
1: ON
B4: Reserved:
B15: Reserved
B0: Event input Enabled/Disabled
0: Disabled
1: Enabled
B1: Event output EV2 Enabled/Disabled
0: Disabled
1: Enabled
B2: Reserved:
B4: Reserved
B5: Heater burnout alarm output
Enabled/Disabled
0: Disabled
1: Enabled
B6: Heater burnout alarm output rated current
0: 20.0 A
1: 100.0 A
B7: Serial communication Enabled/Disabled
0: Disabled
1: Enabled
B8: Heating/Cooling control Enabled/Disabled
0: Disabled
1: Enabled
B9: Transmission output Enabled/Disabled
0: Disabled
1: Enabled
B10: External setting input Enabled/Disabled
0: Disabled
1: Enabled
B11: Insulated power output Enabled/Disabled
0: Disabled
1: Enabled
B12 to B15: Not used, Always 0
B0 to B2: Model
0: xxD
1: xxR (Vertical type)
2: xxM
3: xxS
4: xxL
5: xxR (Horizontal type)
B3 to B4: OUT1 output type
0: R (Relay contact)
1: S (Non-contact voltage)
2: A (Direct current)
B5 to B6: OUT2 output type
0: DR (Relay contact)
1: DS (Non-contact voltage)
2: DA (Direct current)
B7 to B15: Not used, Always 0

7.1.5 A Single/Multiple Piece(s) of Data Read/Write Command (for Program Control)(20/24/50/54H: 20H/24H/50H/54H, 03/06/10H: 03H/06H/10H)
ShinkoMODBUS
CommandFunction
Data Item (*10)
Data
Type
Code
20/24/50/54H 03/06/10H 1000H Step 1 SV (*11)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1001H Step 1 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1002H Step 1 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1003H Step 2 SV (*12)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1004H Step 2 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1005H Step 2 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1006H Step 3 SV (*12)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1007H Step 3 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1008H Step 3 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1009H Step 4 SV (*12)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100AH Step 4 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100BH Step 4 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100CH Step 5 SV
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100DH Step 5 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100EH Step 5 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 100FH Step 6 SV
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1010H Step 6 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1011H Step 6 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1012H Step 7 SV
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1013H Step 7 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1014H Step 7 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1015H Step 8 SV
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1016H Step 8 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1017H Step 8 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1018H Step 9 SV
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 1019H Step 9 time (*13)
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 101AH Step 9 wait value
Set value (Decimal point ignored)
20/24/50/54H 03/06/10H 101BH Reserved (*2)::::
20/24/50/54H 03/06/10H 102FH Reserved (*2)(*1) If any action is changed at 0006H (Event output EV1 allocation) or 0007H (Event output EV2 allocation), EV1 alarm value, EV2
alarm value, etc. will revert to factory default value.
For the items to be initialized: Refer to Section ‘7.7 Items to be Initialized by Changing Settings’ (p.44).
(*2) 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 is/are written, data will be discarded, and acknowledgement will be returned.
(*3) For ‘Not used’ items, if a single/multiple piece(s) of data Read/Write is/are executed, Error code 1 (31H, Shinko protocol) or
Exception code 2 (02H, MODBUS protocol) will be returned.
(*4) For 00E5H (Manual control MV), if the following is written, Error code 3 (33H, Shinko protocol) or Exception code 3 (03H,
MODBUS protocol) will be returned.
• When OUT1 is in ON/OFF control, and if any items except OUT1 low limit and OUT1 high limit values are written.
• When Heating side (of Heating/Cooling control) is in ON/OFF control, and if any items – except Heating side OUT1 low limit,
OUT1 high limit value, Cooling side OUT2 low limit and OUT2 high limit value – are written.
• When Cooling side (of Heating/Cooling control) is in ON/OFF control, and if any items – except Heating side OUT1 low limit to
OUT1 high limit value, Cooling side OUT2 low limit and OUT2 high limit value – are written.
(*5) If 00E9H (Program control Advance function) is read, Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS
protocol) will be returned.
If any value except 0001H (Advance Perform) is written, Error code 3 (33H, Shinko protocol) or Exception code 3 (03H,
MODBUS protocol) will be returned.
(*6) If 00FEH (Data clear) is executed, all values will revert to factory default values.
If communicating using parameters which are unequal to the factory default, it will be impossible to communicate.
Set the communication parameters again.
(Refer to Section ‘3. Setting Communication Parameters’.)
If 00FEH (Data clear) is read, Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS protocol) will be returned.
If any value except 1234H (Clear data) is written, Error code 3 (33H, Shinko protocol) or Exception code 3 (03H, MODBUS
protocol) will be returned.

34

(*7) If 00FFH (Key operation change flag clearing) is read, Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS
protocol) will be returned.
If any value except 0001H (Clear key operation change flag) is written, Error code 3 (33H, Shinko protocol) or Exception code 3(03H, MODBUS protocol) will be returned.
(*8) Contents of error code are shown below.
Error CodeError 01
Error 02
Error 05
Error 06
Error 07
Error 10Error 20

Contents
Internal non-volatile IC memory is defective.
Data writing (in non-volatile IC memory) error when power failure occurs.
Overscale.
PV has exceeded Input range high limit value (Scaling high limit value for DC voltage, current inputs).
Underscale.
PV has dropped below Input range low limit value (Scaling low limit value for DC voltage, current inputs).
Input burnout or disconnection.
Input value is outside of the Indication range and control range.
Hardware malfunction
AT or AT on startup has not been completed even if approx. 4 hours has elapsed since starting.
For AT on startup, PV slope and delay time cannot be measured normally for P, I, D calculation.

(*9) If B13 or B14 is “1: ON”, B11 will also be “1: ON”.
(*10) Data item
163 digit:
0: Fixed value control, 1: Program control
162 to 160 digits: Data item code (serial number) for each step(*11) Step 1 SV (1000H) corresponds to SV1 (0001H) and SV1 (000EH).
(*12) Step 2 SV to Step 4 SV (1003H, 1006H, 1009H) correspond to SV2 to SV4 (000FH, 0010H, 0011H).
(*13) For TS1 OFF time (0073H), TS1 ON time (0074H), TS2 OFF time (0076H), TS2 ON time (0077H), and Steps 1 to 9 time
(1001H, 1004H, 1007H, 100AH, 100DH, 1010H, 1013H, 1016H, 1019H):
Calculate the step time using the smaller time unit at 006DH (Step time unit), then convert it to hexadecimal numbers.
Use hexadecimal numbers for settings as follows.
Setting range: 00:00 to 99:59 (0 to 5999) (e.g.) When ‘Hours:Minutes’ is selected in [Step time unit].
1:00
1 x 60 + 00=60
003CH
1:30
1 x 60 + 30=90
005AH
FFFFH: The step time is held, and Fixed value control is performed.

35

7.2 JC Command Table(Shinko protocol, JC command allocated),(MODBUS ASCII, JC command allocated) or
If(MODBUS RTU, JC command allocated) is selected in [Communication protocol], the following JC
command can be used.
7.2.1 A Single Piece of Data Read/Write Command
ShinkoMODBUS
CommandFunction
Data ItemType
Code
20H/50H
03H/06H
0001H SV1
20H/50H
03H/06H
0002H Not used (*1)
20H/50H
03H/06H
0003H AT/Auto-reset Perform/Cancel
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/50H
20H/50H
20H/50H

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

0004H
0005H
0006H
0007H
0008H
0009H
000AH
000BH
000CH
000DH
000EH
000FH
0010H
0011H
0012H

OUT1 proportional band
OUT2 proportional band (*2)(*3)
Integral time
Derivative time
OUT1 proportional cycle
OUT2 proportional cycle
Not used (*1)
EV1 alarm value (*4)
EV2 alarm value (*4)
Not used (*1)
Not used (*1)
Heater burnout alarm value
Loop break alarm time
Loop break alarm bandSet value lock (*2)(*5)

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

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

0013H
0014H
0015H
0016H
0017H
0018H
0019H
001AH

SV high limit (*6)
SV low limit (*6)
Sensor correction
Overlap/Dead bandNot used (*1)
Scaling high limit
Scaling low limit
Decimal point place

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

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

001BH
001CH
001DH
001EH
001FH

PV filter time constant
OUT1 high limit
OUT1 low limit
OUT1 ON/OFF hysteresis
OUT2 cooling method

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

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

0020H
0021H
0022H

OUT2 high limit
OUT2 low limit
OUT2 ON/OFF hysteresis

36

Data
Set value (Decimal point ignored)
0000H: AT/ Auto-reset Cancel
0001H: AT/ Auto-reset Perform
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value
Set value
Set value
Set value
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value
Set value (Decimal point ignored)
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value (Decimal point ignored)
0000H: No decimal point
0001H: 1 digit after decimal point
0002H: 2 digits after decimal point
0003H: 3 digits after decimal pointSet value (Decimal point ignored)
Set value
Set value
Set value (Decimal point ignored)
0000H: Air cooling
0001H: Oil cooling
0002H: Water coolingSet value
Set value
Set value (Decimal point ignored)ShinkoCommandType
20H/50H

MODBUS
FunctionCode
03H/06H

0023H

Event output EV1 allocation

20H/50H

03H/06H

0024H

Event output EV2 allocation

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

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

0025H
0026H
0027H
0028H
0029H
002AH
002BH
002CH
002DH
002EH
002FH
0030H
0031H
0032H
0033H
0034H
0035H
0036H
0037H

EV1 alarm hysteresis
EV2 alarm hysteresis
Not used (*1)
Not used (*1)
EV1 alarm delay time
EV2 alarm delay time
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Not used (*1)
Control output OFF (*8)

20H/50H

03H/06H

0038H

Auto/Manual control (*9)

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

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

0039H
003AH
003BH
003CH

Manual control MV (*10)
Not used (*1)
Not used (*1)
Not used (*1)

Data Item

Data(*2)(*7)(*2)(*7)370000H: No event
0001H: Alarm output, High limit alarm
0002H: Alarm output, Low limit alarm
0003H: Alarm output, High/Low limits alarm
0004H: Alarm output, High/Low limit range
alarm
0005H: Alarm output, Process high alarm
0006H: Alarm output, Process low alarm
0007H: Alarm output, High limit withstandby alarm
0008H: Alarm output, Low limit withstandby alarm
0009H: Alarm output, High/Low limits withstandby alarm
0000H: No event
0001H: Alarm output, High limit alarm
0002H: Alarm output, Low limit alarm
0003H: Alarm output, High/Low limits alarm
0004H: Alarm output, High/Low limit range
alarm
0005H: Alarm output, Process high alarm
0006H: Alarm output, Process low alarm
0007H: Alarm output, High limit withstandby alarm
0008H: Alarm output, Low limit withstandby alarm
0009H: Alarm output, High/Low limits withstandby alarm
Set value (Decimal point ignored)
Set value (Decimal point ignored)
Set value
Set value

0000H: Control output ON
0001H: Control output OFF
0000H: Automatic control
0001H: Manual control
Set valueShinkoCommandType
20H/50H
20H/50H
20H/50H
20H/50H

MODBUS
FunctionCode
03H/06H
03H/06H
03H/06H
03H/06H

003DH
003EH
003FH
0040H

20H/50H

03H/06H

0041H

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

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

0042H
0043H
0044H

Not used (*1)
Not used (*1)
Not used (*1)
EV1 alarm
Energized/De-energizedEV2 alarm
Energized/De-energizedNot used (*1)
Not used (*1)
Input type

20H/50H

03H/06H

0045H

Direct/Reverse action

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

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

0046H
0047H
0048H
006FH

Not used (*1)
AT biasARW
Key lock (*11)

Data Item

Data

0000H: Energized
0001H: De-energized
0000H: Energized
0001H: De-energized

0000H: K-200 to 1370
0001H: K-200.0 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-200.0 to 400.0
0008H: N-200 to 1300
0 to 1390
0009H: PL000AH: C(W/Re5-26) 0 to 2315
000BH: Pt100-200.0 to 850.0
000CH: JPt100 -200.0 to 500.0000DH: Pt100-200 to 850
000EH: JPt100 -200 to 500
000FH: K-328 to 2498
0010H: K-328.0 to 752.0
0011H: J-328 to 1832
0012H: R
32 to 3200
0013H: S
32 to 3200
0014H: B
32 to 3308
0015H: E-328 to 1472
0016H: T-328.0 to 752.0
0017H: N-328 to 2372
32 to 2534
0018H: PL0019H: C(W/Re5-26) 32 to 4199
001AH: Pt100-328.0 to 1562.0
001BH: JPt100 -328.0 to 932.0001CH: Pt100-328 to 1562
001DH: JPt100 -328 to 932
001EH: 4 to 20 mA DC -2000 to 10000001FH: 0 to 20 mA DC -2000 to 10000
0020H: 0 to 1 V DC
-2000 to 10000
0021H: 0 to 5 V DC
-2000 to 10000
0022H: 1 to 5 V DC
-2000 to 10000
0023H: 0 to 10 V DC
-2000 to 10000
0000H: Reverse action
0001H: Direct action
Set value (Decimal point ignored)
Set value
0000H: Key lock Disabled (Front keys
Enabled)0001H: Key lock Enabled (Front keys
Disabled)

38

7.2.2 A Single Piece of Data Write Command
ShinkoMODBUS
Command Function
Data Item
Type
Code
50H
06H
0070H Key operation change flag clearing(*12)

7.2.3 Read Command
ShinkoMODBUS
Command Function
Type
Code
20H
03H
03H
20H
03H
20H
03H
20H
03H
20H
03H
20H

0080H
0081H
0082H
0083H
0084H
0085H

Data
0001H: Clear key operation
change flag

Data Item

Data

PV
OUT1 MV
OUT2 MV
Not used (*1)
Not used (*1)
Status flag
0000 0000 0000 0000

Read value (Decimal point ignored)
Read value (Decimal point ignored)
Read value (Decimal point ignored)

20
21
22
23
24
25
26
27
28
29
210
211
212
213
214
215

OUT1 output (*13)
0: OFF 1: ON
OUT2 output (*13)
0: OFF 1: ON
EV1 output
0: OFF 1: ON
EV2 output
0: OFF 1: ON
Not used, Always 0
Not used, Always 0
Heater burnout alarm
0: OFF 1: ON
Loop break alarm
0: OFF 1: ON
Overscale
0: OFF 1: ON
Underscale
0: OFF 1: ON
Control output OFF function
0: Control output ON 1: Control output OFF
AT/Auto-reset, Perform/Cancel
0: Cancel 1: Perform
OUT/OFF key function
0: Control output OFF function
1: Auto/Manual control
Not used, Always 0
Auto/Manual control
0: Automatic control 1: Manual control
Change in key operation 0: No 1: Yes(*1) For ‘Not used’ items, if a single piece of data Read/Write is executed, Error code 1 (31H, Shinko protocol) or Exception code
2 (02H, MODBUS protocol) will be returned.
(*2) The Read/Write range of setting values is different from that of keypad operation.
(*3) For writing 0005H (OUT2 proportional band), write the multiplied value (0.0 to 10.0) of OUT1 proportional band.
For reading 0005H (OUT2 proportional band), the controller internally calculates the multiplied value using OUT1 and OUT2
proportional bands, and returns the result as response data.
Even if the multiplied value exceeds 10.0, the exceeding value will be returned as response data.
(*4) If 000BH (EV1 alarm value) or 000CH (EV2 alarm value) is changed, EVT1 high limit alarm value or EVT2 high limit alarm
value will be automatically changed to the same value.
(*5) For 0012H (Set value lock), Lock 4 and Lock 5 can be selected, which is the same as 004EH (Set value lock) of the BCx2
(p.29).
(*6) If 0013H (SV high limit) or 0014H (SV low limit) is changed, Scaling high limit or Scaling low limit will be automaticallychanged to the same value.
(*7) If any action is changed at 0023H (Event output EV1 allocation) or at 0024H (Event output EV2 allocation), EV1 alarm value,
EV2 alarm value, etc. will revert to factory default value.
For the items to be initialized, refer to Section “7.7 Items to Be Initialized by Changing Settings” (p.44).
The following items cannot be selected via software communication (They can only be set via the keypad):High/Low limits independent alarm, High/Low limit range independent alarm, High/Low limits with standby independent
alarm, Loop break alarm output, Time signal output, Output during AT, Pattern end output, Output via communicationcommand, Heating/Cooling control relay contact output (EV2 only)39

(*8) For 0037H (Control output OFF), if Control output OFF function is not selected in [OUT/OFF key function], Error code 1 (31H,
Shinko protocol) or Exception code 2 (02H, MODBUS protocol) will be returned.
(*9) For 0038H (Auto/Manual control), if Auto/Manual control is not selected in [OUT/OFF key function], Error code 1 (31H,
Shinko protocol) or Exception code 2 (02H, MODBUS protocol) will be returned.
(*10) For 0039H (Manual control MV), if Write is executed during automatic control, Error code 1 (31H, Shinko protocol) or
Exception code 2 (02H, MODBUS protocol) will be returned.
If the following are written, Error code 3 (33H, Shinko protocol) or Exception code 3 (03H, MODBUS protocol) will be
returned.
• When OUT1 is in ON/OFF control, and if any items except OUT1 low limit and OUT1 high limit values are written.
• When Heating side (of Heating/Cooling control) is in ON/OFF control, and if any items – except Heating side OUT1 low
limit, OUT1 high limit value, Cooling side OUT2 low limit and OUT2 high limit value – are written.
• When Cooling side (of Heating/Cooling control) is in ON/OFF control, and if any items – except Heating side OUT1 low limit
to OUT1 high limit value, Cooling side OUT2 low limit and OUT2 high limit value – are written.
(*11) Key lock Enabled/Disabled can be selected.
If Key lock Enabled (Front keys Disabled) is selected, front keys cannot be used. However, if the power to the BCx2 isturned OFF, then ON again, the Key lock will be cancelled, and front keys can be used.
(*12) If 0070H (Key operation change flag clearing) is read, Error code 1 (31H, Shinko protocol) or Exception code 2 (02H,
MODBUS protocol) will be returned.
If any value except 0001H (Clear key operation change flag) is written, Error code 3 (33H, Shinko protocol) or Exception
code 3 (03H, MODBUS protocol) will be returned.
(*13) For direct current output, data is not fixed.

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 a random
value will be written or read, resulting in malfunction.
• MODBUS protocol uses Holding Register addresses. The Holding Register addresses are created as follows.
A Shinko command data item is converted to decimal number, and the offset of 40001 is added. The result isthe 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• 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 the value
before the setting, the value will not be written in non-volatile IC memory.)• 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.
• If any action is changed at 0006H (Event output EV1 allocation) or at 0007H (Event output EV2 allocation),
the following values will revert to the factory default value:
EV1 alarm value (0012H), EV2 alarm value (0014H), etc.
For the items to be initialized, refer to Section “7.7 Items to Be Initialized by Changing Settings” (p.44).
• Writings via software communication are possible while in Set value lock status.
• Even if options are not ordered, writing or reading via software communication will be possible.
However, their command contents will not function.
• 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. See pages 4, 5.
• When Write is executed using the Global address [95 (7FH), Shinko protocol] command or Broadcast
address [(00H) MODBUS protocol] command, the command is sent to all the connected slaves. However,a response is not returned.
7.3.3 Read Command• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal point isused for a response.
40

7.4 Negative Acknowledgement
7.4.1 Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS protocol)
The slave will return Error code 1 (31H, Shinko protocol) or Exception code 2 (02H, MODBUS protocol) in thefollowing case.
• When non-existent data item is read or written.
7.4.2 Error code 3 (33H, Shinko protocol) or Exception code 3 (03H, MODBUS protocol)
The slave will return Error code 3 (33H, Shinko protocol) or Exception code 3 (03H, MODBUS protocol) in thefollowing case.
• When a value out of the setting range is written.
7.4.3 Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, MODBUS protocol)
The slave will return Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, MODBUS protocol) in thefollowing cases.
• When 0001H (AT/Auto-reset Perform) or 0002H (AT on startup Perform) is written at 00E6H (AT/Auto-reset
Perform/Cancel) during PI control or ON/OFF control action.
• While AT is performing during Fixed value control, if 0001H (AT/Auto-reset Perform) or 0002H (AT on startup
Perform) is written at 00E6H (AT/Auto-reset Perform/Cancel).
While AT is performing in Fixed value control, and if 00E0H (OUT/OFF key function) is written.
• While AT is performing during Program control, if 0001H (AT/Auto-reset Perform) or 0002H (AT on startup
Perform) is written at 00E6H (AT/Auto-reset Perform/Cancel).
While AT is performing during Program control, and if 00E0H (OUT/OFF key function) is written.
• When 00E5H (Manual control MV) is written during automatic control
7.4.4 Error code 5 (35H, Shinko protocol) or Exception code 18 (12H, MODBUS protocol)
The slave will return Error code 5 (35H, Shinko protocol) or Exception code 18 (12H, MODBUS protocol) in thefollowing case.
• During setting mode by keypad operation

41

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 pieces of datasuch as Data item 0100H (PV), Data item 0101H (OUT1 MV), Data item 010DH (Status flag 1), can be read.
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 the [010DH (Status flag 1) B15:
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 [010DH (Status flag 1) B15: Change in key operation] hasbeen set to 1 (Yes), then read all set values.
2

Clear [010DH (Status flag 1) B15: Change in key operation], by writing Data item 00FFH (Key operation
change flag clearing) to 0001H (Clear key operation change flag).
If 00FFH (Key operation change flag clearing) is written to 0001H (Clear key operation change flag) during thesetting 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 [010DH (Status flag 1) B15: 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 [010DH (Status flag 1) B15: Change in key operation] hasbeen set to 1 (Yes), then write the 00FFH (Key operation change flag clearing) to 0001H (Clear key
operation change flag).
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 anegative acknowledgement;
Consider it as still in setting mode, and read the requisite minimum pieces of data such as 0100H (PV)0101H (OUT1 MV), 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 or ‘AT on Startup’ Finishes
While AT or ‘AT on startup’ is performing, this controller sets [010DH (Status flag 1) B9: AT/Auto-reset, AT on
startup Perform/Cancel] to 1 (Perform).
After AT or ‘AT on startup’ is finished, PID parameters are updated.
On the monitoring software side, check that [010DH (Status flag 1) B9: AT/Auto-reset, AT on startup
Perform/Cancel] has been set to 0 (Cancel), then read parameters such as P, I, D, ARW.
7.5.4 Note When Sending All Set Values Simultaneously• When changing alarm types at 0006H (Event output EV1 allocation) or at 0007H (Event output EV2
allocation), the following values will revert to 0 (zero).
EV1 alarm value (0012H), EV2 alarm value (0014H)
First, send the selected alarm type, then send each alarm value.
Refer to Section ‘7.7 Items to be Initialized by Changing Settings’. (p.44)• When changing input types at 0002H (Input type), values such as SV1, OUT1 proportional band, EV1 Alarm
value, etc. will be initialized.
First, send the selected input type, then send other set values.
427.6 When Communicating with a PLC
To communicate with a PLC, use a Shinko PLC Interface Unit SIF-600.
No programming is needed for connection.
Shinko protocol 24H (Multiple pieces of data read command) and 54H (Multiple pieces of data write
command) are not available.
PLCs corresponding to the SIF-600, its manufacturer and host link units:
PLC Manufacturer
Mitsubishi Electric Corp.

PLC Model, Series Name
MELSEC Q, QnA series (*)

Omron Corp.

MELSEC FX series (*)
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).

43

7.7 Items to be Initialized by Changing Settings
7.7.1 Shinko protocol / MODBUS ASCII / MODBUS RTU
If settings are changed, the following items will be initialized.
: Initialized
X: Not initialized
Setting item to be
Event output
Input type
ItemchangedEV1 allocation(0002H)to be initialized(0006H)X
SV1 to SV9 (1000H to 1018H)
X
Steps 1 to 9 wait value (1002H to 101AH)
X
AT bias (005BH)
X
OUT1 proportional band (003CH)X
Manual reset (0040H)
X
SV rise rate (0058H)
X
SV fall rate (0059H)
X
Scaling high limit (0003H)
X
Scaling low limit (0004H)
X
Program start temperature (006FH)
EV1 alarm value (0012H)
EV1 high limit alarm value (0013H)
X
Loop break alarm time (001EH)
X
Loop break alarm band (001FH)X
SVTC bias (0053H)
X
Remote bias (0056H)
X
EV2 alarm value (0014H)
X
EV2 high limit alarm value (0015H)
X
Transmission output high limit (000CH)
X
Transmission output low limit (000DH)X
OUT2 proportional band (0047H)
X
EV1 alarm value 0 Enabled/Disabled (0024H)
X
EV1 alarm hysteresis (0025H)
X
EV1 alarm delay time (0026H)
X
EV1 alarm Energized/De-energized (0027H)
X
X
EV2 alarm value 0 Enabled/Disabled (0028H)
X
X
EV2 alarm hysteresis (0029H)
X
X
EV2 alarm delay time (002AH)
X
X
EV2 alarm Energized/De-energized (002BH)
X
Sensor correction coefficient (004FH)
X
Sensor correction (0050H)
X
External setting input high limit (0054H)
X
External setting input low limit (0055H)

44

Event output
EV2 allocation(0007H)

Transmission
output(000BH)

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X
X
X

X
X
X

X

X

X

X

X

X

X

X

X
X
X
X
X

X

X

X

X

X

X

X

X

7.7.2 JC Command
For the JC command, the following items will be initialized when settings are changed.
: Initialized
X: Not initialized
Setting item to be changed
Event output
Event output
Input type
Item
EV1 allocation EV2 allocation(0044H)to be initialized(0023H)(0024H)
X
X
SV1 (0001H)
X
X
AT bias (0047H)
X
X
OUT1 proportional band (0004H)
X
X
Scaling high limit (0018H)
X
X
Scaling low limit (0019H)
X
EV1 alarm value (000BH)
X
X
Loop break alarm time (0010H)
X
X
Loop break alarm band (0011H)
X
EV2 alarm value (000CH)
X
X
OUT2 proportional band (0005H)
X
X
EV1 alarm hysteresis (0025H)
X
X
EV1 alarm delay time (0029H)
X
X
EV1 alarm Energized/De-energized (0040H)
X
X
EV2 alarm hysteresis (0026H)
X
X
EV2 alarm delay time (002AH)
X
X
EV2 alarm Energized/De-energized (0041H)
X
X
Sensor correction (0015H)

45

8. SV Digital Transmission
Step SV can be received from the connected Shinko programmable controllers PCA1 or PCB1. (Select ‘SVdigital transmission’ in [Communication protocol] on the PCA1 or PCB1.)
8.1 Wiring
For the SV digital transmission, connect YA (-) to YA (-), YB (+) to YB (+), SG to SG terminal respectively
in the same way as Serial communication (RS-485).
Up to 31 units of the BCS2 / BCR2 / BCD2 can be connected.
The following shows a connection example of PCB1 and BCS2 / BCR2 / BCD2.
PCB1

BCS2

BCR2, BCD2

YA(-) ⑩
YB(+) ⑪SG ⑫

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG

Shieldwire

FG

Shield wireFG

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG

Shield wireFG

⑯ YA(-)⑰ YB(+)⑱ SG⑩ YA(-)⑪ YB(+)⑫ SG(Fig. 8.1-1)
8.2 Setting Method of PCA1, PCB1 and BCx2
(1) Setting the PCA1 or PCB1
Select ‘SV digital transmission’ in [Communication protocol].
(2) Setting the BCx2
Check the following in Engineering mode 1.
Refer to Section ‘3. Setting Communication Parameters’. (pp. 4, 5)• ‘Shinko protocol’ has been selected in [Communication protocol].
• Communication speed of the BCx2 is equal to that of the PCA1 or PCB1 (9600 bps, 19200 bps
or 38400 bps).
(3) Starting ‘SV digital transmission’Enter the program set values on the PCA1, PCB1.
If the program is executed by pressing the RUN Key, Step SV of the PCA1 or PCB1 will be sent
to the BCx2.
During program Standby, 0 (zero) will be sent to the BCx2.

46

9. Specifications
Cable length
Communication line
Communication method
Communication speed
Synchronization method
Code form
Data bit/Parity
Stop bit
Communication protocol
Data format

Number of connectable
units
Error correction
Error detection
Digital external setting

1.2 km (Max.), Cable resistance: Within 50(Terminators are not necessary,
but if used, use 120
minimum on both sides.)EIA RS-485
Half-duplex communication
9600, 19200, 38400 bps (Selectable by keypad)
Start-stop synchronization
ASCII, binary
7, 8 / Even, Odd, No parity (Selectable by keypad)
1, 2 (Selectable by keypad)
Shinko protocol, MODBUS ASCII, MODBUS RTU (Selectable by keypad)
Communication
ProtocolStart bit

Shinko Protocol

MODBUS ASCIIMODBUS RTU

1
7 (8)Data bit
Selectable
Even (No parity,
ParityOdd)
Selectable
1 (2)Stop bit
Selectable
Max 31 units to 1 host computer1
7 (8)Selectable
Even (No parity,
Odd)
Selectable
1 (2)Selectable1
8
No parity (Even,
Odd)
Selectable
1 (2)Selectable

Command request repeat system
Parity, checksum (Shinko protocol), LRC (MODBUS ASCII), CRC-16 (MODBUS
RTU)Step SV can be received from the connected Shinko programmable controllers
PCA1 or PCB1. (Select ‘SV digital transmission’ in [Communication protocol]on the PCA1 or PCB1.)47

10. Troubleshooting

Check that power is being supplied to the master and slave that customers use. If communication failure still
occurs, check the following.
ProblemPossible Cause
Solution

Communication
failureCommunication cable is not securely
connected, or is disconnected/defective.
Incorrect wiring of the communication
cable and/or connector
Imperfect contact between thecommunication cable and the connector,
or between the communication connector
and instrument 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 theslave does not correspond to that of
the command.
The instrument numbers (addresses) are
duplicated in multiple slaves.

Make sure that the program isappropriate for the transmission timing.
Althoughcommunication
is occurring, theresponse isnegative
acknowledgement.

A non-existent command code has been
sent.
The Write command data exceeds thesetting range of the slave.
The controller cannot be written whenfunctions such as AT are performing.
The BCx2 is in front keypad operation
setting mode.

Check the communication cable andconnector.
Check the communication cable andconnector.
Refer to Section ‘2. Wiring’ (pp. 2, 3).
Check the communication cable andconnector.

Set the same communication speed on themaster and the slave.
Refer to Section ‘3. Setting Communication
Parameters’ (pp. 4, 5).
Set the same data bit, parity and stop bit on
the master and the slave.
Refer to Section ‘3. Setting Communication
Parameters’ (pp. 4, 5).
Check the instrument number (address)of the slave and the command.
Refer to Section ‘3. Setting Communication
Parameters’ (pp. 4, 5).
Check that each slave has a different
instrument number (address).
Refer to Section ‘3. Setting Communication
Parameters’ (pp. 4, 5).
Check the program.
Refer to Section ‘4. Communication
Procedure’ (p.6).
Check the command code.
Check the setting range of the slave.
Check the slave status.
Return the controller to RUN 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
48