Appendix 7 Setting Examples; Setting Examples Of Message For Serial Communication Module - Mitsubishi Electric MELSEC IQ-R series Reference Manual

Appendix 7
This section explains the setting example of the message.

Setting examples of message for serial communication module

The following shows the setting example when using a command from a serial communication module.
Examples of device access in ASCII code (Format 1, 3C frame)
The following shows the setting example when using a command for format 1 and 3C frame.
■Device reading
• Format 1 (sum check enabled), 3C frame
• Access target: QCPU of the connected station (host station)
• Command: Batch read in word units (command: 0401)
• Device: M100 to M131 (for 2 words)
1.
Read values from devices.
Request message
Control Frame ID No.
code
ENQ 3C frame
F 9
05H 46H 39H
 The subtotal of the additional value of binary data = 22BH
Request data
Command Subcommand
0 4 0 1 0 0
30H 34H 30H 31H 30H 30H
The subtotal of the additional value of binary data = 3DFH
*1 The addition result of the sum check range: 22BH+3DF=60AH
2.
Receive the result.
Response message (Normal completion: Response data)
Control code Frame ID No.
STX 3C frame
F 9
02H 46H 39H
 The subtotal of the additional value of binary data = 22BH
*2
Response data (read data)
1 2 3
31H 32H 33H
The subtotal of the additional value of binary data = 18FH
*1 The addition result of the sum check range: 22BH + 18F = 3BAH
*2 The value of read data corresponds to the access target device as follows.
1 2 3 4
31 32 33 34
H H H H
1 2 3 4
0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
to
M115 M100 M131
Setting Examples
Access route
Station No. Network No.
Host station
0 0 0
30H 30H 30H
Device code
0 0 M *
30H 30H 4DH 2AH
Access route
Station No. Network No.
Host station
0 0 0
30H 30H 30H
4 0 0
34H 30H 30H
0 0 0 2
30 30 30 32
H H H H
0 0 0 2
0 = OFF
1 = ON
to
M116
PC No.
0 F
30H 46H
Head device number
0 0 0 1 0 0
30H 30H 30H 31H 30H 30H
PC No.
0 F
30H 46H
Control code
0 2 ETX
30H 32H 03H
Self-station No.
F 0 0
46H 30H 30H
Sum
check
Number of device
*1
code
points
0 0 0 2 0
30H 30H 30H 32H 30H

Self-station No.
F 0 0
46H 30H 30H
*1
Sum check code
B A
42H 41H

APPENDICES APPENDIX

Appendix 7 Setting Examples

A
A
41H
477