Mitsubishi Electric MELSEC IQ-R series Reference Manual page 485

Examples of device access in binary code (3E frame)
The following shows the setting example when using a command for binary code and 3E frame.
■Device reading
• Binary code, 3E 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
Subheader Access route
Network No.
3E frame (request) Host station
50H 00H 00H
Request data
Command Subcommand
0401 0000
01H 04H 00H
*1 Monitoring timer (2 bytes) + Request data (10 bytes)
2.
Receive the result.
Response message (Normal completion: Response data)
Subheader Access route
Network No.
3E frame (response) Host station
D0H 00H 00H
*2
Response data (read data)
M100 to M115
34H
*1 End code (2 bytes) + Response data (4 bytes)
*2 The value of read data corresponds to the access target device as follows.
34 12 02
H H
3 4 1 2
0 0 1 1 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0
M107 M100 M115 M108 M123
to to
PC No. Request
destination
module I/O No.
FFH FFH
Head device number
100
00H 64H
PC No. Request
destination
module I/O No.
FFH FFH
12H
00
H H
0 2 0 0
0 = OFF
1 = ON
M116 M131 M124
to to
Request data
length
Request
destination
module station
No.
12
03H 00H 0CH
Device code
M
00H 00H 90H
Response data
length
Request
destination
module station
No.
6
03H 00H 06H
M116 to M131
02H
Monitoring timer
*1
4 seconds
00H 10H 00H
Number of device
points
2
02H 00H
End code
*1
0000H
00H 00H 00H
00H
APPENDICES APPENDIX
Appendix 7 Setting Examples
A
483