Shinko JCL-33A Communication Instruction Manual

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COMMUNICATION INSTRUCTION MANUAL JCL-33A (C5)

No.JCL3CE3 2018.11

This manual contains instructions for the communication functions, operations and notes when operating the
JCL-33A.
To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual.

Warning

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

1. System Configuration

1.1 When Using USB Communication Cable CMC-001-1 (Sold Separately)

(Fig. 1.1-1)

1.2 When Using Communication Converter IF-400 (Sold Separately)

(Fig. 1.2-1)

1.3 System Configuration of SV Digital Transmission

By connecting to Shinko Programmable Controllers [PCA1 or PCB1 (with C5 option)],
SV can be received from programmable controllers.

(Fig. 1.3-1)

USB communication

cable CMC-001-1

(sold separately)

Host computer

No. 0 No. 1

No. 30

No. 0 No. 1 No. 30

Communication converter

IF-400 (sold separately)

RS-232C RS-485

Host computer

JCL-33A (Max 31 units)

JCL-33A (Max 31 units)

PCB1 (with C5 option)

No. 0

No. 1

No. 30

JCL-33A (Max 31 units)

-2-

USB communication

cable CMC-001-1

(sold separately)

Host computer
USB port

Shield wire

YA(-)
YB(+)
COM

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

Shield wire

4
3
1
6

Host computer

D-sub 9-pin connector

Shield wire

Communication converter

IF-400 (sold separately)

RS-232C RS-485

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

RXD

TXD

DCD

DTR

DSR

RTS

CTS

23514678GNDRI9

CDM

FG

FG

FG

2. Wiring

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

(Fig. 2.1-1)

2.2 When Using Communication Converter IF-400 (Sold Separately)

(Fig. 2.2-1)

JCL-33A

FG

FG

Shield wire

Shield wire

JCL-33A

-3-

Shield wire

Connect only one end of the shield to the FG terminal to avoid a ground loop. If both ends of the
shield wire are connected to the FG terminal, the circuit will be closed, resulting in a ground loop.
This may cause noise.
Be sure to ground the FG terminal.
Recommended cable: OTSC-VB 2PX0.5SQ (made by Onamba Co., Ltd.) or equivalent (Use a
twisted pair cable.)

Terminator (Terminal resistor)

Communication converter IF-400 (sold separately) has a built-in terminator.
The terminator is mounted at the end of the wire when connecting multiple peripheral devices to a
personal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator to the communication line because the JCL-33A has built-in pull-up
and pull-down resistors.

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3. Setting Communication Parameters

Set communication parameters in Auxiliary function setting mode 1.
To enter Auxiliary function setting mode 1, press the and keys (in that order) together for approx.
3 seconds in PV/SV Display Mode. ’PV/SV indication’ appears.
Press the key 3 times. ‘Communication protocol’ appears.
Use the or key for settings (or selections), and register them with the key.

Display Item, Function, Setting range Factory Default

Communication protocol Shinko protocol

• Selects 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 0

• Sets the instrument number.

The instrument numbers should be set one by one when
multiple instruments are connected in Serial communication,
otherwise communication is impossible.

• Available only when the C5 option is equipped.

• Setting range: 0 to 95

Communication speed 9600 bps

• Selects a communication speed equal to that of the host

computer.

• : 2400 bps
: 4800 bps
: 9600 bps
: 19200 bps
: 38400 bps

Parity Even

• Selects the parity equal to that of the host computer.

• Not available if Shinko protocol or Shinko protocol (Block

Read/Write available) is selected.

• : No parity
: Even
: Odd

Stop bit 1 bit

• Selects the stop bit equal to that of the host computer.

• Not available if Shinko protocol or Shinko protocol (Block

Read/Write available) is selected.

• : 1 bit
: 2 bits

Press the key.
The unit reverts to PV/SV display Mode.

Now, settings are complete.

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4. Communication Procedure

Communication starts with command transmission from the host computer (hereafter Master) and
ends with the response of the JCL-33A (hereafter Slave).

• 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 the
processing 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.

(Fig. 4-1) • Broadcast address (Modbus protocol) is set.

• Communication error (framing error, parity error)

• Checksum error (Shinko protocol), LRC discrepancy (Modbus
ASCII mode), CRC-16 discrepancy (Modbus RTU mode)

Communication Timing of the RS-485 (C5 option)
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 to
send the command again. (It is recommended to execute Retry twice or more.)

Slave Side

When the slave starts transmission through the RS-485 communication line, the slave is arranged so
as to provide an idle status (mark status) of 1 character transmission period or more 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.

Command

Data

Command

Acknowledgement

Command

Negative

acknowledgement

Command

No response

Master Slave

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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 by 2's complement.
Numerals written below the command represent number of characters.

(1) Write command

• Write a single piece of data

Header

(02H)

Address

Sub address

(20H)

Command
type (50H)

Data
item

Data Checksum

Delimiter

(03H)

1 1 1 1 4 4 2 1

• Write multiple pieces of data

Header

(02H)

Address

Sub address

(20H)

Command
type (54H)

Data
item

Data Checksum

Delimiter

(03H)

1 1 1 1 4 4 x n 2 1

n: Amount of data

(2) Read command

• Read a single piece of data

Header

(02H)

Address

Sub address

(20H)

Command
type (20H)

Data

item

Checksum

Delimiter

(03H)

1 1 1 1 4 2 1

• Read multiple pieces of data

Header

(02H)

Address

Sub address

(20H)

Command
type (24H)

Data

item

Amount of

read data n

Checksum

Delimiter

(03H)

1 1 1 1 4 4 2 1

(3) Response with data

• Response to ‘Read a single piece of data’

Header

(06H)

Address

Sub address

(20H)

Command
type (20H)

Data

item

Data Checksum

Delimiter

(03H)

1 1 1 1 4 4 2 1

• Response to ‘Read multiple pieces of data’

Header

(06H)

Address

Sub address

(20H)

Command
type (24H)

Data

item

Data Checksum

Delimiter

(03H)

1 1 1 1 4 4 x n 2 1

n: Amount of data

(4) Acknowledgement

Header

(06H)

Address Checksum

Delimiter

(03H)

1 1 2 1

(5) Negative acknowledgement

Header

(15H)

Address Error code Checksum

Delimiter

(03H)

1 1 1 2 1

-7-

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: Codes for Write command and Read command.

Command

Type

Contents Description

20H Read (A single piece of data) Reads a single piece of data.

24H Read (Multiple pieces of data) Reads consecutive multiple pieces

of 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 pieces

of 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.21 - 29).

Data: The contents of data (set values) differ depending on the Write command.

Composed of 4-digit hexadecimal numbers, using ASCII.
Refer to Section ‘7. Communication Command Table’ (pp. 21 - 29).

Checksum: 2-character data to detect communication errors.

Refer to Section ‘5.3 Checksum Calculation’ (p.8).

Delimiter: Control code to represent the end of command.

ASCII code ETX (03H) fixed

Error code: Represents an error type using ASCII.

1 (31H).... Non-existent command

2 (32H).... Not used

3 (33H).... 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

-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 the
slaves 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 to 600 (0258H). See (Fig. 5.3-1).
Address (instrument number): 0 (20H)

(Fig. 5.3-1)

20H
20H
50H
30H
30H
30H
31H
30H
32H
35H
38H

0010 0000
0010 0000
0101 0000
0011 0000
0011 0000
0011 0000
0011 0001
0011 0000
0011 0010
0011 0101
0011 1000

+

10 0010 0000

[Hexadecimal] [Binary]

1101 1111

1

+

1110 0000

E 0

45H

30H

[1's complement]

[2's complement]

[Hexadecimal]

[ASCII]

Checksum

STX ETX

P 0 0 0 1 0 2 5 8

02H 20H 20H 50H 30H 30H 30H 31H 30H 32H 35H 38H 03H

[Characters above are represented in ASCII.]

Checksum

Checksum calculation range

[e.g.]

E

45H 30H

0

-9-

5.4 Command Example

Numerals written below the command represent number of characters.

(1) Read [Address 1, PV]

• Read command from the master

Header

(02H)

Address

(21H)

Sub

address

(20H)

Command

type

(20H)

Data item

[0080H]

(30H 30H 38H 30H)

Checksum

(44H 37H)

Delimiter

(03H)

1 1 1 1 4 2 1

• A response from the slave in normal status [When PV=25 (0019H)]

Header

(06H)

Address

(21H)

Sub

address

(20H)

Command

type

(20H)

Data item

[0080H]

(30H 30H 38H 30H)

Data

[0019H]

(30H 30H 31H 39H)

Checksum

(30H 44H)

Delimiter

(03H)

1 1 1 1 4 4 2 1

(2) Read [Address 1, SV1]

• Read command from the master

Header

(02H)

Address

(21H)

Sub

address

(20H)

Command

type

(20H)

Data item

[0001H]

(30H 30H 30H 31H)

Checksum

(44H 45H)

Delimiter

(03H)

1 1 1 1 4 2 1

• A response from the slave in normal status [When SV1=600 (0258H)]

Header

(06H)

Address

(21H)

Sub

address

(20H)

Command

type

(20H)

Data item

[0001H]

(30H 30H 30H 31H)

Data

[0258H]

(30H 32H 35H 38H)

Checksum

(30H 46H)

Delimiter

(03H)

1 1 1 1 4 4 2 1

(3) Write [Address 1, SV1]

• Write command from the master [When writing SV1 to 600 (0258H)]

Header

(02H)

Address

(21H)

Sub

address

(20H)

Command

type

(50H)

Data item

[0001H]

(30H 30H 30H 31H)

Data

[0258H]

(30H 32H 35H 38H)

Checksum

(44H 46H)

Delimiter

(03H)

1 1 1 1 4 4 2 1

• A response from the slave in normal status

Header

(06H)

Address

(21H)

Checksum

(44H 46H)

Delimiter

(03H)

1 1 2 1

-10-

(4) Read [Address 1, 25 commands from SV1]

• Read command from the master

Header

(02H)

Address

(21H)

Sub

address

(20H)

Command

type

(24H)

Data item

[0001H]

(30H 30H 30H 31H)

Amount of read data

25 [0019H]

(30H 30H 31H 39H)

Checksum

(31H 30H)

Delimiter

(03H)

1 1 1 1 4 4 2 1

• A response from the slave in normal status

Header

(06H)

Address

(21H)

Sub

address

(20H)

Command

type

(24H)

Data item

[0001H]

(30H 30H 30H 31H)

11114

Data

[00000000055A

• • •

0000]

(

30H 30H 30H 30H 30H 30H 30H 30H 30H 35H 35H 41H • • • 30H 30H 30H 30H)

Checksum

(43H 38H)

Delimite

r

(03H)

100 (4 x 25) 2 1

Response data becomes as follows.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 0 0000H
0002H Input type K [-200 to 1370 ] 0000H
0003H Scaling high limit 1370 055AH
0004H Scaling low limit -200 FF38H
0005H Decimal point place No decimal point 0000H
0006H Alarm 1 type No alarm action 0000H
0007H Alarm 2 type

No alarm action

0000H

0008H Reserved

0

0000H

0009H Reserved

0

0000H

000AH

SV1/Step 1 SV

0 0000H

000BH

Step 2 SV

0 0000H

000CH

Step 3 SV

0 0000H

000DH

Step 4 SV

0 0000H
000EH Step 5 SV 0 0000H
000FH Step 6 SV 0 0000H
0010H

Step 7 SV

0 0000H
0011H

Step 8 SV

0 0000H
0012H Step 9 SV 0 0000H
0013H Step 1 time 0 0000H
0014H Step 2 time 0 0000H
0015H Step 3 time 0 0000H
0016H Step 4 time 0 0000H
0017H Step 5 time 0 0000H
0018H Step 6 time 0 0000H
0019H Step 7 time 0 0000H

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(5) Write [Address 1, 25 commands from SV1]

(e.g.) The data (25 commands from SV1) is shown below.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 2000 07D0H
0002H Input type K [-199.9 to 400.0 ] 0001H
0003H Scaling high limit 4000 0FA0H
0004H Scaling low limit 0 0000H
0005H Decimal point place 1 digit after decimal

point

0001H

0006H Alarm 1 type High limit alarm 0001H
0007H Alarm 2 type Low limit alarm 0002H
0008H Reserved 0 0000H
0009H Reserved 0 0000H
000AH SV1/Step 1 SV 2000 07D0H
000BH Step 2 SV 2000 07D0H
000CH Step 3 SV 3000 0BB8H
000DH Step 4 SV 3000 0BB8H
000EH Step 5 SV 0 0000H
000FH Step 6 SV 0 0000H
0010H Step 7 SV 0 0000H
0011H Step 8 SV 0 0000H
0012H Step 9 SV 0 0000H
0013H Step 1 time 60 minutes 003CH
0014H Step 2 time 120 minutes 0078H
0015H Step 3 time 30 minutes 001EH
0016H Step 4 time 60 minutes 003CH
0017H Step 5 time 120 minutes 0078H
0018H Step 6 time 0 0000H
0019H Step 7 time 0 0000H

• Write command from the master (When writing the above data)

Header

(02H)

Address

(21H)

Sub

address

(20H)

Command

type

(54H)

Data item

[0001H]

(30H 30H 30H 31H)

1 1 1 1 4

Data

[07D000010FA0 • • • 0000]

(30H 37H 44H 30H 30H 30H 30H 31H 30H 46H 41H 30H • • • 30H 30H 30H 30H)

Checksum

(42H 35H)

Delimiter

(03H)

100 (4 x 25) 2 1

• Response from the slave in normal status

Header

(06H)

Addres

s

(21H)

C

hecksum

(44H 46H)

D

elimiter

(03H)

112

1

-12-

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 (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 Mode

No 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
be within 1.5 character transmission times.
If an interval lasts longer than 1.5 character transmission times, the JCL-33A 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

Header

(:)

Slave

address

Function

code

Data

Error check

LRC

Delimiter

(CR)

Delimiter

(LF)

6.3.2 RTU Mode

RTU mode is configured to start after idle time is processed for more than 3.5 character
transmission times, and end after idle time is processed for more than 3.5 character transmission
times.
(Communication speed 2400, 4800, 9600, 19200 bps: 3.5 character transmission times,
Communication speed 38400 bps: 1.75 ms)
Data section: Max. 252 bytes

3.5 idle

characters

Slave

address

Function

code

Data

Error check

CRC-16

3.5 idle

characters

-13-

(1) Slave Address

Slave address is an individual instrument number on the slave side, and is set within the range
0 to 95 (00H to 5FH). The master identifies slaves by the slave address of the requested message.
The slave informs the master which slave is responding to the master by placing its own address
in the response message.
Slave address 00H (Broadcast address) can identify all the slaves connected. However, slaves
do not respond.

(2) Function Code

The function code is the command code for the slave to undertake one of the following actions.

(Table 6.3-1)

Type Function Code Sub-Function Code Contents

Data access

03 (03H)

Reads a single or multiple piece(s) of

data from slave(s).
06 (06H) Writes a single piece of data to slave(s).

16 (10H) Writes multiple pieces of data to slave(s).

The function code is used to discern whether the response is normal (acknowledgement) or if any
error (negative acknowledgement) has occurred when the slave returns the response message to
the master.
When acknowledgement is returned, the slave simply returns the original function code.
When negative acknowledgement is returned, the MSB of the original function code is set as 1 for
the response.
For example, if the master sends request message setting 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 Code Contents

1 (01H) Illegal function (Non-existent function)
2 (02H) Illegal data address (Non-existent data address)
3 (03H) Illegal data value (Value out of the setting range)

17 (11H)

Shinko protocol error code 4
(Status unable to be 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 codes
in 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.21 - 29).

(4) Error Check

ASCII 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.

-14-

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+ X15+ X2+ 1)

1

Initialize the CRC-16 data (assumed as X) (FFFFH).

2

Calculate exclusive OR (XOR) with the 1st data and X. This is assumed as X.

3

Shift X one bit to the right. This is assumed as X.

4

When a carry is generated as a result of the shift, XOR is calculated by X of

3

and the

fixed value (A001H). This is assumed as X. If a carry is not generated, go to step5.

5

Repeat steps3and4until shifting 8 times.

6

XOR is calculated with the next data and X. This is assumed as X.

7

Repeat steps3to5.

8

Repeat steps3to

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

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Data item

[0100H]

(30H 31H 30H 30H)

Amount of data

[0001H]

(30H 30H 30H 31H)

Error check

LRC

(46H 41H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 4 4 2 2

• Response message from the slave in normal status [When PV=600 (0258H)]

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Response byte

count [02H]

(30H 32H)

Data

[0258H]

(30H 32H 35H 38H)

Error check

LRC

(41H 30H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 2 4 2 2

(2) Write [Slave address 1, SV1 (0001H)]

• A request message from the master [When writing SV1 to 600 (0258H)]

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 36H)

Data item

[0001H]

(30H 30H 30H 31H)

Data

[0258H]

(30H 32H 35H 38H)

Error check

LRC

(39H 45H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 4 4 2 2

• Response message from the slave in normal status

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 36H)

Data item

[0001H]

(30H 30H 30H 31H)

Data

[0258H]

(30H 32H 35H 38H)

Error check

LRC

(39H 45H)

Delimiter

CR+LF

(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 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).

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(38H 36H)

Exception code

[03H]

(30H 33H)

Error check

LRC

(37H 36H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 2 2 2

-15-

(3) Read [Slave address 1, SV1 (0001H)]

• A request message from the master

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Data item

[0001H]

(30H 30H 30H 31H)

Amount of data

[0001H]

(30H 30H 30H 31H)

Error check

LRC

(46H 41H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 4 4 2 2

• Response message from the slave in normal status [When SV1=600 (0258H)]

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Response byte

count [02H]

(30H 32H)

Data

[0258H]

(30H 32H 35H 38H)

Error check

LRC

(41H 30H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 2 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

(3AH)

Slave

address

(30H 31H)

Function

code

(38H 33H)

Exception code

[02H]

(30H 32H)

Error check

LRC

(37H 41H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 2 2 2

-16-

(4) Read [Slave address 1, 25 commands from SV1]

• A request message from the master

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Data item

[0001H]

(30H 30H 30H 31H)

Amount of data

[0019H]

(30H 30H 31H 39H)

Error check

LRC

(45H 32H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 4 4 2 2

• Response message from the slave in normal status

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(30H 33H)

Response byte

count [32H]

(33H 32H)

1 2 2 2

Data

[00000000055A • • • 0000]

(30H 30H 30H 30H 30H 30H 30H 30H 30H 35H 35H 41H • • • 30H 30H 30H 30H)

Error check

LRC

(33H 34H)

Delimiter

CR+LF

(0DH 0AH)

100 (4 x 25) 2 2

Response data section is shown below.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 0 0000H
0002H Input type K [-200 to 1370 ] 0000H
0003H Scaling high limit 1370 055AH
0004H Scaling low limit -200 FF38H
0005H Decimal point place No decimal point 0000H
0006H Alarm 1 type No alarm action 0000H
0007H Alarm 2 type

No alarm action

0000H
0008H Reserved 0 0000H
0009H Reserved 0 0000H
000AH SV1/Step 1 SV 0 0000H
000BH Step 2 SV 0 0000H
000CH Step 3 SV 0 0000H
000DH

Step 4 SV

0 0000H

000EH

Step 5 SV

0 0000H

000FH

Step 6 SV

0 0000H

0010H

Step 7 SV

0 0000H

0011H

Step 8 SV

0 0000H

0012H

Step 9 SV

0 0000H
0013H Step 1 time 0 0000H
0014H

Step 2 time

0 0000H
0015H

Step 3 time

0 0000H
0016H

Step 4 time

0 0000H
0017H

Step 5 time

0 0000H
0018H

Step 6 time

0 0000H
0019H

Step 7 time

0 0000H

-17-

(5) Write (Slave address 1, 25 commands from SV1)

The data (25 commands from SV1) is shown below as an example.

Amount of data: 25 (0019H)
Byte count: 50 (32H)
Data: Converted to hexadecimal as follows.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 2000 07D0H
0002H Input type K [-199.9 to 400.0 ] 0001H
0003H Scaling high limit 4000 0FA0H
0004H Scaling low limit 0 0000H
0005H Decimal point place 1 digit after decimal

point

0001H

0006H Alarm 1 type High limit alarm 0001H
0007H Alarm 2 type Low limit alarm 0002H
0008H Reserved 0 0000H
0009H Reserved 0 0000H
000AH SV1/Step 1 SV 2000 07D0H
000BH Step 2 SV 2000 07D0H
000CH Step 3 SV 3000 0BB8H
000DH

Step 4 SV

3000 0BB8H
000EH

Step 5 SV

0 0000H
000FH

Step 6 SV

0 0000H
0010H

Step 7 SV

0 0000H
0011H

Step 8 SV

0 0000H
0012H

Step 9 SV

0 0000H
0013H Step 1 time 60 minutes 003CH
0014H

Step 2 time

120 minutes 0078H
0015H

Step 3 time

30 minutes 001EH
0016H

Step 4 time

60 minutes 003CH
0017H

Step 5 time

120 minutes 0078H
0018H

Step 6 time

0 0000H
0019H

Step 7 time

0 0000H

• A request message from the master (when writing the above data)

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(31H 30H)

Data item

[0001H]

(30H 30H 30H 31H)

Amount of data

[0019H]

(30H 30H 31H 39H)

Byte count

[32H]

(33H 32H)

1 2 2 4 4 2

Data

[07D00001

• • •

0000

(30H 37H 44H 30H 30H 30H 30H 31H

• • •

30H 30H 30H 30H)

Error check

LRC

(35H 45H)

Delimiter

CR+LF

(0DH 0AH)

100(4x

25)22

• Response message from the slave in normal status

Header

(3AH)

Slave

address

(30H 31H)

Function

code

(31H 30H)

Data item

[0001H]

(30H 30H 30H 31H)

Amount of data

[0019H]

(30H 30H 31H 39H)

Error check

LRC

(44H 35H)

Delimiter

CR+LF

(0DH 0AH)

1 2 2 4 4 2 2

-18-

6.4.2 RTU Mode

Numerals written below the message represent number of characters.

(1) Read [Slave address 1, PV (0100H)]

• A request message from the master

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Data item

(0100H)

Amount of data

(0001H)

Error check

CRC-16
(85F6H)

3.5 idle

characters

1 1 2 2 2

• Response message from the slave in normal status [When PV is 600 (0258H)]

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Response byte

count
(02H)

Data

(0258H)

Error check

CRC-16

(B8DEH)

3.5 idle

characters

1 1 1 2 2

(2) Write [Slave address 1, SV1 (0001H)]

• A request message from the master [When 600 (0258H) is written to SV1]

3.5 idle

characters

Slave

address

(01H)

Function

code

(06H)

Data item

(0001H)

Data

(0258H)

Error check

CRC-16

(D890H)

3.5 idle

characters

1 1 2 2 2

• Response message from the slave in normal status

3.5 idle

characters

Slave

address

(01H)

Function

code

(06H)

Data item

(0001H)

Data

(0258H)

Error check

CRC-16

(D890H)

3.5 idle

characters

1 1 2 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 is
returned.
The Exception code 03H (Value out of the setting range) is returned (error).

3.5 idle

characters

Slave

address

(01H)

Function

code

(86H)

Exception code

(03H)

Error check

CRC-16
(0261H)

3.5 idle

characters

1 1 1 2

(3) Read [Slave address 1, SV1 (0001H)]

• A request message from the master

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Data item

(0001H)

Data

(0001H)

Error check

CRC-16

(D5CAH)

3.5 idle

characters

1 1 2 2 2

• Response message from the slave in normal status [When SV1 is 600 (0258H)]

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Response byte

count
(02H)

Data

(0258H)

Error check

CRC-16

(B8DEH)

3.5 idle

characters

1 1 1 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).

3.5 idle

characters

Slave

address

(01H)

Function

code

(83H)

Exception code

(02H)

Error check

CRC-16

(C0F1H)

3.5 idle

characters

1 1 1 2

-19-

(4) Read [Slave address 1, 25 commands from SV1]

• A request message from the master

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Data item

(0001H)

A

mount of

data

(0019H)

Error check

CRC-16

(D5C0H)

3.5 idle

characters

1 1 2 2 2

• Response message from the slave in normal status

3.5 idle

characters

Slave

address

(01H)

Function

code

(03H)

Response

byte count

(32H)

Data

(00000000055A

• • •

0000H)

Error check

CRC-16

(60D9H)

3.5 idle

characters

1 1 1 50 (2 x 25) 2

Response data section is shown below.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 0 0000H
0002H Input type K [-200 to 1370 ] 0000H
0003H Scaling high limit 1370 055AH
0004H Scaling low limit -200 FF38H
0005H Decimal point place No decimal point 0000H
0006H Alarm 1 type No alarm action 0000H
0007H Alarm 2 type

No alarm action

0000H
0008H Reserved 0 0000H
0009H Reserved 0 0000H
000AH SV1/Step 1 SV 0 0000H
000BH Step 2 SV 0 0000H
000CH Step 3 SV 0 0000H
000DH

Step 4 SV

0 0000H

000EH

Step 5 SV

0 0000H

000FH

Step 6 SV

0 0000H

0010H

Step 7 SV

0 0000H

0011H

Step 8 SV

0 0000H

0012H

Step 9 SV

0 0000H
0013H Step 1 time 0 0000H
0014H

Step 2 time

0 0000H
0015H

Step 3 time

0 0000H
0016H

Step 4 time

0 0000H
0017H

Step 5 time

0 0000H
0018H

Step 6 time

0 0000H
0019H

Step 7 time

0 0000H

-20-

(5) Write (Slave address 1, 25 commands from SV1)

The data (25 commands from SV1) is shown below as an example.

Amount of data: 25 (0019H)
Byte count: 50 (32H)
Data: Converted to hexadecimal as follows.

Data Item Data

Data

(Converted to Hexadecimal)

0001H SV1 2000 07D0H
0002H Input type K [-199.9 to 400.0 ] 0001H
0003H Scaling high limit 4000 0FA0H
0004H Scaling low limit 0 0000H
0005H Decimal point place 1 digit after decimal

point

0001H

0006H Alarm 1 type High limit alarm 0001H
0007H Alarm 2 type Low limit alarm 0002H
0008H Reserved 0 0000H
0009H Reserved 0 0000H
000AH SV1/Step 1 SV 2000 07D0H
000BH Step 2 SV 2000 07D0H
000CH Step 3 SV 3000 0BB8H
000DH

Step 4 SV

3000 0BB8H
000EH

Step 5 SV

0 0000H
000FH

Step 6 SV

0 0000H
0010H

Step 7 SV

0 0000H
0011H

Step 8 SV

0 0000H
0012H

Step 9 SV

0 0000H
0013H Step 1 time 60 minutes 003CH
0014H

Step 2 time

120 minutes 0078H
0015H

Step 3 time

30 minutes 001EH
0016H

Step 4 time

60 minutes 003CH
0017H

Step 5 time

120 minutes 0078H
0018H

Step 6 time

0 0000H
0019H

Step 7 time

0 0000H

• A request message from the master (When writing the above data)

3.5 idle

characters

Slave

address

(01H)

Function

code

(10H)

Data item

(0001H)

Amount of

data

(0019H)

Byte
count
(32H)

1 1 2 2 1

Data

(07D000010FA0

• • •

0000H)

Error check

CRC-16

(269AH)

3.5 idle

characters

50 (2 x 25) 2

• Response message from the slave in normal status

3.5 idle

characters

Slave

address

(01H)

Function

code

(10H)

Data item

(0001H)

Amount of

data

(0019H)

Error check

CRC-16
(5003H)

3.5 idle

characters

1 1 2 2 2

-21-

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

Shinko

Command

Type

Modbus

Function

Code

Data Item Data

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 band Set value
20H/50H 03H/06H 0005H OUT2 proportional band Set value
20H/50H 03H/06H 0006H

Integral time

Set value
20H/50H 03H/06H 0007H

Derivative time

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 A1 value Set value
20H/50H 03H/06H 000CH

A2 value

Set value
20H/50H 03H/06H 0012H Set value lock

0000H: Unlock

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 band Set 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: No decimal point

0001H: 1 digit after decimal point

0002H: 2 digits after decimal point

0003H: 3 digits after decimal point
20H/50H 03H/06H 001BH PV filter time constant Set 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 0022H OUT2 ON/OFF hysteresis Set value
20H/50H 03H/06H 0023H A1 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

alarm

000AH: Timer function

000BH: Pattern end output
20H/50H 03H/06H 0024H A2 type Same as those of A1 type
20H/50H 03H/06H 0025H A1 hysteresis Set value
20H/50H 03H/06H 0026H A2 hysteresis Set value
20H/50H 03H/06H 0029H A1 delay time Set value
20H/50H 03H/06H 002AH A2 delay time Set value
20H/50H 03H/06H 0037H ON/OFF (RUN/STOP)

0000H: ON (STOP)

0001H: OFF (RUN)

-22-

Shinko

Command

Type

Modbus

Function

Code

Data Item Data

20H/50H 03H/06H 0042H Alarm HOLD function

0000H: Alarm Not Holding
0001H: Alarm Holding

20H/50H 03H/06H 0044H Input type

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]

001FH: 0 to 20 mA DC[-1999 to 9999]

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]
20H/50H 03H/06H 0045H Direct/Reverse action 0000H: Reverse (Heating)

0001H: Direct (Cooling)

20H/50H 03H/06H 0047H AT bias

Set value

20H/50H 03H/06H 0048H ARW

Set value

20H/50H 03H/06H 006FH Key lock

0000H: Key Enabled

0001H: Key Locked
20H/50H 03H/06H 1110H Step 1 SV (*) Set value
20H/50H 03H/06H 1111H Step 1 time Set value
20H/50H 03H/06H 1120H Step 2 SV Set value
20H/50H 03H/06H 1121H Step 2 time Set value
20H/50H 03H/06H 1130H Step 3 SV Set value
20H/50H 03H/06H 1131H Step 3 time Set value
20H/50H 03H/06H 1140H Step 4 SV Set value
20H/50H 03H/06H 1141H Step 4 time Set value
20H/50H 03H/06H 1150H Step 5 SV Set value
20H/50H 03H/06H 1151H Step 5 time Set value
20H/50H 03H/06H 1160H Step 6 SV Set value

(*) Step 1 SV (1110H) is the same as SV1 (0001H).

-23-

Shinko

Command

Type

Modbus

Function

Code

Data Item Data

20H/50H 03H/06H 1161H Step 6 time Set value
20H/50H 03H/06H 1170H Step 7 SV Set value
20H/50H 03H/06H 1171H Step 7 time Set value
20H/50H 03H/06H 1180H Step 8 SV Set value
20H/50H 03H/06H 1181H Step 8 time Set value
20H/50H 03H/06H 1190H Step 9 SV Set value
20H/50H 03H/06H 1191H Step 9 time Set value

7.1.2 A Single Piece of Data Write Command

Shinko

Command

Type

Modbus

Function

Code

Data Item Data

50H 06H 0070H Key operation change flag

clearing

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

flag

7.1.3 A Single Piece of Data Read Command

Shinko

Command

Type

Modbus

Function

Code

Data Item Data

20H 03H 0080H PV PV
20H 03H 0081H OUT1 MV Current OUT1 MV
20H 03H 0082H OUT2 MV Current OUT2 MV
20H 03H 0083H Current SV Current SV
20H 03H 0084H Running step remaining time Remaining time
20H 03H 0085H Status flag

0000 0000 0000 0000
2

15

to 2

0

20digit: OUT1

0: OFF 1: ON
(For current output, Not fixed)

21digit: OUT2

0: OFF 1: ON

22digit: A1 output

0: OFF 1: ON

23digit: A2 output

0: OFF 1: ON
24to 27digits: Not used (Always 0)
28digit: Overscale

0: OFF 1: ON
29digit: Underscale

0: OFF 1: ON
210digit: ON (STOP) / OFF (RUN)

0: ON (STOP) 1: OFF (RUN)

211digit: During AT

0: OFF 1: During AT

212digit: OUT/OFF key function

0: Control output ON/OFF
1: Program control

213digit: Controller/Converter

0: Controller 1: Converter
214digit: Not used (Always 0)
215digit: Change in key operation

0: No 1: Yes

20H 03H 0086H Running step Running step

-24-

7.2 Shinko Protocol (Block Read/Write), Modbus ASCII Mode (Block Read/Write), Modbus RTU Mode
(Block Read/Write) Commands

7.2.1 A Single/Multiple Piece(s) of Data Read/Write Command

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H/50H/54H 03H/06H/10H 0001H SV1 Set value
20H/24H/50H/54H 03H/06H/10H 0002H Input type 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]
001FH: 0 to 20 mA DC [-1999 to 9999]
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]
20H/24H/50H/54H 03H/06H/10H 0003H Scaling high limit Set value
20H/24H/50H/54H 03H/06H/10H 0004H Scaling low limit Set value
20H/24H/50H/54H 03H/06H/10H 0005H Decimal point place 0000H: No decimal point

0001H: 1 digit after decimal point

0002H: 2 digits after decimal point

0003H: 3 digits after decimal point

-25-

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H/50H/54H 03H/06H/10H 0006H A1 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

alarm

000AH: Timer function

000BH: Pattern end output
20H/24H/50H/54H 03H/06H/10H 0007H A2 type Same as those of A1 type
20H/24H/50H/54H 03H/06H/10H 0008H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0009H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 000AH Step 1 SV (*2)

Set value

20H/24H/50H/54H 03H/06H/10H 000BH Step 2 SV

Set value

20H/24H/50H/54H 03H/06H/10H 000CH Step 3 SV

Set value

20H/24H/50H/54H 03H/06H/10H 000DH Step 4 SV

Set value

20H/24H/50H/54H 03H/06H/10H 000EH Step 5 SV

Set value

20H/24H/50H/54H 03H/06H/10H 000FH Step 6 SV

Set value

20H/24H/50H/54H 03H/06H/10H 0010H Step 7 SV

Set value

20H/24H/50H/54H 03H/06H/10H 0011H Step 8 SV

Set value

20H/24H/50H/54H 03H/06H/10H 0012H Step 9 SV

Set value

20H/24H/50H/54H 03H/06H/10H 0013H Step 1 time

Set value

20H/24H/50H/54H 03H/06H/10H 0014H Step 2 time

Set value

20H/24H/50H/54H 03H/06H/10H 0015H Step 3 time

Set value

20H/24H/50H/54H 03H/06H/10H 0016H Step 4 time

Set value

20H/24H/50H/54H 03H/06H/10H 0017H Step 5 time

Set value

20H/24H/50H/54H 03H/06H/10H 0018H Step 6 time

Set value

20H/24H/50H/54H 03H/06H/10H 0019H Step 7 time

Set value

(*1) For ‘Reserved’ items, if a single/multiple piece(s) of data is/are read, 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.

(*2) Step 1 SV (000AH) is the same as SV1 (0001H).

-26-

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H/50H/54H 03H/06H/10H 001AH

Step 8 time

Set value
20H/24H/50H/54H 03H/06H/10H 001BH

Step 9 time

Set value
20H/24H/50H/54H 03H/06H/10H 001CH A1 value Set value
20H/24H/50H/54H 03H/06H/10H 001DH A2 value Set value
20H/24H/50H/54H 03H/06H/10H 001EH Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 001FH Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0020H A1 hysteresis Set value
20H/24H/50H/54H 03H/06H/10H 0021H A2 hysteresis Set value
20H/24H/50H/54H 03H/06H/10H 0022H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0023H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0024H A1 delay time Set value
20H/24H/50H/54H 03H/06H/10H 0025H A2 delay time Set value
20H/24H/50H/54H 03H/06H/10H 0026H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0027H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0028H OUT1 proportional

band

Set value

20H/24H/50H/54H 03H/06H/10H 0029H

Integral time

Set value
20H/24H/50H/54H 03H/06H/10H 002AH

Derivative time

Set value
20H/24H/50H/54H 03H/06H/10H 002BH ARW Set value
20H/24H/50H/54H 03H/06H/10H 002CH Manual reset Set value
20H/24H/50H/54H 03H/06H/10H 002DH OUT1 proportional

cycle

Set value

20H/24H/50H/54H 03H/06H/10H 002EH OUT1 ON/OFF

hysteresis

Set value

20H/24H/50H/54H 03H/06H/10H 002FH OUT1 high limit Set value
20H/24H/50H/54H 03H/06H/10H 0030H OUT1 low limit Set value
20H/24H/50H/54H 03H/06H/10H 0031H OUT2 proportional

band

Set value

20H/24H/50H/54H 03H/06H/10H 0032H OUT2 proportional

cycle

Set value

20H/24H/50H/54H 03H/06H/10H 0033H OUT2 ON/OFF

hysteresis

Set value

20H/24H/50H/54H 03H/06H/10H 0034H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0035H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0036H Overlap/Dead band Set value
20H/24H/50H/54H 03H/06H/10H 0037H Reserved (*1)
20H/24H/50H/54H 03H/06H/10H 0038H Direct/Reverse

action

0000H: Reverse (Heating)

0001H: Direct (Cooling)
20H/24H/50H/54H 03H/06H/10H 0039H Set value lock 0000H: Unlock

0001H: Lock 1

0002H: Lock 2

0003H: Lock 3
20H/24H/50H/54H 03H/06H/10H 003AH Sensor correction Set value
20H/24H/50H/54H 03H/06H/10H 003BH PV filter time

constant

Set value

20H/24H/50H/54H 03H/06H/10H 003CH AT bias Set value

(*1) For ‘Reserved’ items, if a single/multiple piece(s) of data is/are read, 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.

-27-

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H/50H/54H 03H/06H/10H 003DH SVTC bias

Set value

20H/24H/50H/54H 03H/06H/10H 003EH Timer delay time

Set value

003FH Not used (*3)

￤ ￤

00CFH Not used (*3)

20H/24H/50H/54H 03H/06H/10H 00D0H PV/SV indication 0000H: PV indication

0001H: SV indication
20H/24H/50H/54H 03H/06H/10H 00D1H Output status when

input errors occur

0000H:

OUT1: Outputs OFF (4 mA) or OUT1

low limit value.

OUT2: OFF

0001H:

OUT1: Outputs a value between

OFF (4mA) and ON (20mA), or a
value between OUT1 low limit
value and OUT1 high limit value
depending on deviation.

OUT2: ON

20H/24H/50H/54H 03H/06H/10H 00D2H EV1 output 0000H: A1 output

0001H: A2 output

0002H: Common to A1 and A2 output
20H/24H/50H/54H 03H/06H/10H 00D3H EV2 output Same as those of EV1 output
20H/24H/50H/54H 03H/06H/10H 00D4H Alarm HOLD

function

0000H: Alarm Not Holding

0001H: Alarm Holding

00D5H Not used (*3)

￤ ￤

00DFH Not used (*3)

20H/50H 03H/06H 00E0H OUT/OFF key

function

0000H: Control output ON/OFF

0001H: Program control

20H/50H 03H/06H 00E1H ON/OFF

(RUN/STOP)

0000H: ON (STOP)

0001H: OFF (RUN)

20H/50H 03H/06H 00E2H AT Perform/Cancel 0000H: AT Cancel

0001H: AT Perform

20H/50H 03H/06H 00E3H

Controller/Converter

function

0000H: Controller

0001H: Converter

20H/50H 03H/06H 00E4H DI input function 0000H: SV1/SV2 external selection

0001H: ON/OFF (RUN/STOP)

external selection

0002H: Timer

20H/50H 03H/06H 00E5H Step time unit 0000H: Hours:Minutes

0001H: Minutes:Seconds

20H/50H 03H/06H 00E6H Delay action type 0000H: ON delay

0001H: OFF delay

0002H: ON/OFF delay

20H/50H 03H/06H 00E7H Key lock 0000H: Key Enabled

0001H: Key Locked

00E8H Not used (*3)

￤ ￤

00EFH Not used (*3)

(*3) 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.

-28-

7.2.2 A Single Piece of Data Write Command

Sh

inko

Command

Type

Modbus

Function Code

Data Item Data

50H 06H 00FFH Key operation

change flag clearing
(*4)

0000H: No action

0001H: Clear key operation change

flag

(*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 Write is executed for any value other than 0001H (Clear key operation change flag), Error code 3
(33H, Shinko protocol) or Exception code 3 (03H, Modbus protocol) will be returned.

7.2.3 A Single/Multiple Piece(s) of Data Read Command

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H 03H 0100H PV PV
20H/24H 03H 0101H OUT1 MV Current OUT1 MV
20H/24H 03H 0102H OUT2 MV Current OUT2 MV
20H/24H 03H 0103H Current SV Current SV
20H/24H 03H 0104H Current running step Running step
20H/24H 03H 0105H

Running step
remaining time

Remaining time

20H/24H 03H 0106H Status flag 0000 0000 0000 0000

2

15

to 2

0

20digit: OUT1

0: OFF 1: ON
(Current output: Unfixed)

21digit: OUT2

0: OFF 1: ON

22digit: A1 output

0: OFF 1: ON

23digit: A2 output

0: OFF 1: ON
24to 27digits: Not used (Always 0)
28digit: Overscale

0: OFF 1: ON
29digit: Underscale

0: OFF 1: ON
210digit: ON (STOP) / OFF (RUN)

0: ON (STOP) 1: OFF (RUN)
211digit: During AT

0: OFF 1: During AT
212digit: OUT/OFF key function

0: Control output ON/OFF

1: Program control
213digit: Controller/Converter

0: Controller 1: Converter
214digit: Not used (Always 0)
215digit: Change in key operation

0: No 1: Yes

-29-

Shinko

Command

Type

Modbus

Function Code

Data Item Data

20H/24H 03H 0108H Software version Software version No.
20H/24H 03H 0109H Unit model

information 1

0000 0000 0000 0000
2

15

to 2

0

20digit: Not used (Always 0)
21digit: Heating/Cooling control output

Enabled/Disabled

0: Disabled 1: Enabled

22digit: Alarm 1 function

Enabled/Disabled

0: Disabled 1: Enabled

23digit: Alarm 2 function

Enabled/Disabled

0: Disabled 1: Enabled

24to 215digits: Not used (Always 0)

20H/24H 03H 010AH Unit model

information 2

0000 0000 0000 0000
2

15

to 2

0

20to 22digits: Model

4: xxL

23to 24digits: OUT1 output type

0: R/M (Relay contact)
1: S/M (Non-contact voltage)
2: A/M (Direct current)

25to 215digits: Not used (Always 0)

-30-

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 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 the alarm type is changed in [A1 type (0023H or 0006H)] or in [A2 type (0024H or 0007H)], A1 value
or A2 value 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, their command contents will not function.

• The Communication protocol, Instrument Numbers, Communication Speed, Parity and Stop bit of the
slave cannot be written by software communication. They can only be set via the keypad.

• 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, the response 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 communication. (If a value written via software communication is the same as the value
before 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 1 (01H, Modbus protocol)
during PI control or ON/OFF control action in the following case:

• When AT Perform/Cancel (0003H or 00E2H) is read or written

The slave will return Error code 4 (34H, Shinko protocol) or Exception code 17 (11H, Modbus protocol)
in the following cases:

• While AT is cancelled, and if 0003H or 00E2H (AT Perform/Cancel) is written to 0000H (AT Cancel)

• While AT is performing, and if 0003H or 00E2H (AT Perform/Cancel) is written to 0001H (AT
Perform)

-31-

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 data such as Data item 0080H or 0100H (PV), Data item 0081H or 0101H (OUT1 MV), Data item
0085H or 0106H (Status flag), 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 0085H or 0106H (Status flag,
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 or 0106H (Status flag, 215: Change in key

operation) has been set to “1 (Yes)”, then read all set values.

2

Clear 0085H or 0106H (Status flag, 215: Change in key operation), by writing Data item 0070H or

00FFH (Key operation change flag clearing) to 0001H (Clear key operation change flag).

If 0070H or 00FFH (Key operation change flag clearing) is written to 0001H (Clear key operation
change flag) 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 or 0106H (Status flag, 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 or 0106H (Status flag, 215: Change in key
operation) has been set to “1 (Yes)”, then write 0070H or 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 a negative acknowledgement;

Consider it as still in setting mode, and read the requisite minimum pieces of data such as 0080H

or 0100H (PV), 0081H or 0101H (OUT1 MV), 0085H or 0106H (Status flag), 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 or 0106H (Status flag, 211: During AT) to “1 (During
AT)”.
After AT is finished, PID parameters are updated.
On the monitoring software side, check that 0085H or 0106H (Status flag, 211: During AT) 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 0023H or 0006H (A1 type), 0024H or 0007H (A2 type), A1 value or A2
value will default to 0 (zero).

First, send the selected alarm type, then send each alarm value.

• When changing input types at 0044H or 0002H (Input type), the set values such as SV1, OUT1
proportional band, A1 value will be initialized.

First, send the selected input type, then send other set values.

-32-

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 PLC model Host link unit model

Mitsubishi Electric Corp.

MELSEC Q, QnA series (*)

AJ71UC24, A1SJ71UC24-R2/R4/PRF
A1SJ71C24-R2/R4/PRF, QJ71C24

MELSEC FX series (*)

Omron Corp. SYSMAC CJ series

CS1W-SCU21-V1
CJ1W-SCU21, CJ1W-SCU41

Keyence Corp.

KV KV-L20V

Yokogawa Electric Corp.

FA-M3 F3LC11-2N, F3LC11-1F, F3LC12-1F

Fuji Electric Co., Ltd.

MICREX-SX series

NP1L-RS1, NP1L-RS2, NP1L-RS3, NP1L-RS4

(*) Models with compatible QR/QW communication commands.

-33-

8. SV Digital Transmission

By connecting to Shinko programmable controllers [PCA1 or PCB1 (with C5 option)], the step SV
can be digitally transmitted.

8.1 Wiring

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

(Fig. 8.1-1)

8.2 Setting Communication Parameters

To use the SV digital transmission function between PCB1 and JCL-33A, communication parameters

should be set as follows. Refer to the Instruction Manual for the JCL-33A and PCB1 for details.

Setting Method of Controllers

(1) Setting the PCB1

Select “SV digital transmission (Shinko protocol)” in [Communication protocol].

(2) Setting the JCL-33A

Check the following settings in Auxiliary function setting mode 1.
Refer to Section ‘3 Setting Communication Parameters’ (p.4).

• Shinko protocol has been selected in [Communication protocol].

• Communication speed of the JCL-33A is identical with that of PCB1.

(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 JCL-33A.
During program control stop (or in standby mode), 0 (zero) is sent to the JCL-33A.

FG

FG

FG

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

⑩ YA(-)
⑪ YB(+)
⑫ SG

YA(-) ⑩

YB(+) ⑪

SG ⑫

Shield wire

Shield wire

Shield wire

PCB1

JCL-33A

-34-

9. Specifications

Cable length 1.2 km (Max.), Cable resistance: Within 50 (Terminators are not necessary,

but if used, use 120 or more on both sides.)
Communication
line

EIA RS-485

Communication
method

Half-duplex communication

Communication
speed

2400, 4800, 9600, 19200, 38400 bps (Selectable by keypad)

Synchronization
method

Start-stop synchronization

Code form ASCII, Binary
Communication
protocol

Shinko protocol, Modbus ASCII, Modbus RTU

In addition, each protocol above is available with Block Read/Write.
Data format

Communication

protocol

Shinko protocol Modbus ASCII Modbus RTU

Start bit

1 1 1

Data bit

7 7 8

Parity

Even

Even (No parity, Odd)
Selectable

No parity (Even, Odd)
Selectable

Stop bit

1

1 (2)
Selectable

1 (2)

Selectable
Number of
connectable
units

Max 31 units to 1 host computer

Error correction Command request repeat system

Error detection Parity check, checksum (Shinko protocol), LRC (Modbus ASCII), CRC-16 (Modbus

RTU)

Digital external
setting

Receives digital SV from Shinko programmable controllers (PCA1 or PCB1 with C5

option).

-35-

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 Possible Cause Solution

Communication
failure

Communication cable is not securely
connected, or is disconnected/defective.

Check the communication cable and

connector.
Incorrect wiring of the communication
cable and/or connector

Check the communication cable and

connector.

Refer to Section ‘2. Wiring’ (pp. 2, 3).
Imperfect contact between the
communication cable and the connector,
or between the communication connector
and instrument port

Check the communication cable and

connector.

Communication speed of the slave does
not match that of the master.

Set the same communication speed on

the master and the slave.

Refer to Section ‘3. Setting

Communication Parameters’ (p. 4).
The data bit, parity and stop bit of the
master do not correspond to those of
the slave.

Set the same data bit, parity and stop

bit on the master and the slave.

Refer to Section ‘3. Setting

Communication Parameters’ (p. 4).
The instrument number (address) of the
slave does not correspond to that of
the command.

Check the instrument number (address)

of the slave and the command.

Refer to Section ‘3. Setting

Communication Parameters’ (p. 4).
The instrument numbers (addresses) are
duplicated in multiple slaves.

Check that each slave has a different

instrument number (address).

Refer to Section ‘3. Setting

Communication Parameters’ (p. 4).
Make sure that the program is
appropriate for the transmission timing.

Check the program.

Refer to Section ‘4. Communication

Procedure’ (p. 5).

Although communica­tion is occurring, the
response is negative
acknowledgement.

A non-existent command code has been
sent.

Check the command code.

Refer to Section ‘7.Communication

Command Table’ (pp.21 to 29).
The Write command data exceeds the
setting range of the slave.

Check the setting range of the slave.

The controller cannot be written when
functions such as AT are performing.

Check the slave status.

The instrument is in front keypad
operation setting mode.

Return the instrument to RUN mode.

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

SHINKO TECHNOS CO., LTD.

OVERSEAS DIVISION

:Head Office

URL:
E-mail:

2-5-1, Senbahigashi, Minoo, Osaka, Japan
http://www.shinko-technos.co.jp/e/
[e-mail]

Tel :
Fax:

[phone]
[phone]