Mitsubishi Electric MELSEC iQ-R Series - Page 481

APPENDICES APPENDIX
Appendix 7 Setting Examples
479
A
Examples of device access in binary code (Format 5, 4C frame)
The following shows the setting example when using a command for format 5 and 4C frame.
■Device reading
• Format 5 (sum check enabled), 4C 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
*1 Frame ID No. (1 byte) + Access route (7 bytes) + Request data (10 bytes)
*2 The addition result of the sum check range: 30BH + FBH = 406H
2. Receive the result.
Response message (Normal completion: Response data)
*1 Frame ID No. (1 byte) + Access route (7 bytes) + Response ID code (2 bytes) + Normal completion code (2 bytes) + Response data (4
bytes)
*2 Additional code. Calculate the sum check code except for the additional code. (Page 35 Additional code (10H))
*3 The addition result of the sum check range: 309H + 246h = 54FH
*4 The value of read data corresponds to the access target device as follows.
Control code Number of data
bytes
*1
Frame ID
No.
Access route
Station
No.
Network No. PC No. Request
destination
module I/O No.
Request
destination
module station
No.
Self-
station
No.
DLE STX 18 bytes 4C frame Host station
10H 02H 12H 00H F8H 00H 00H FFH FFH 03H 00H 00H
 The subtotal of the additional value of binary data = 30BH
Request data Control code Sum check code
*2
Command Subcommand Head device
number
Device code Number of
device points
0401 0000 100 M 2 DLE ETX 0 6
01H 04H 00H 00H 64H 00H 00H 90H 02H 00H 10H 03H 30H 36H
The subtotal of the additional value of binary data = FBH 
Control code Number of data
bytes
*1
Frame ID
No.
Access route
Station
No.
Network No. PC No. Request
destination
module I/O No.
Request
destination
module station
No.
Self-
station
No.
DLE STX 16 bytes 4C frame Host station
10H 02H 10H 10H 00H F8H 00H 00H FFH FFH 03H 00H 00H

*2
The subtotal of the additional value of binary data = 309H
Response ID
code
Normal
completion code
Response data (read data)
*4
Control code Sum check code
*3
FFFFH 0000H M100 to M115 M116 to M131 DLE ETX 4 F
FFH FFH 00H 00H 34H 12H 02H 00H 10H 03H 34H 46H
The subtotal of the additional value of binary data = 246H 
M107
34120200
001 1010 0000 1001 0000 0001 0000 0000 0
34
H 12 H 02 H 00 H
M100 M115 M108 M123 M116 M131 M124
0=OFF
1=ON
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