Setting Examples Of Message For Ethernet Interface Module - Mitsubishi Electric MELSEC IQ-R series Reference Manual

Setting examples of message for Ethernet interface module

The following shows the setting example when using a command from an Ethernet interface module.
Examples of device access in ASCII code (3E frame)
The following shows the setting example when using a command for ASCII code and 3E frame.
■Device reading
• ASCII 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
5 0 0 0 0 0
35H 30H 30H 30H 30H 30H
Request data
Command Subcommand
0 4 0 1 0
30H 34H 30H 31H 30H
*1 Monitoring timer (4 bytes) + Request data (20 bytes)
2.
Receive the result.
Response message (Normal completion: Response data)
Subheader Access route
Network
No.
3E frame (response) Host station
D 0 0 0 0 0
44H 30H 30H 30H 30H 30H
*2
Response data (read data)
1 2
31H 32H
*1 End code (4 bytes) + Response data (8 bytes)
*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
PC No. Request destination
module I/O No.
F F 0 3 F
46H 46H 30H 33H 46H
Device code
0 0 0 M *
30H 30H 30H 4DH 2AH
PC No. Request destination
module I/O No.
F F 0 3 F
46H 46H 30H 33H 46H
3 4
33H 34H
0 0 0 2
30 30 30 32
H H H H
0 0 0 2
0 = OFF
1 = ON
to
M116
Request data
*1
length
Request
destination
module
station No.
24
F 0 0 0 0
46H 30H 30H 30H 30H
Head device number
0 0 0 1 0
30H 30H 30H 31H 30H
Response data
*1
length
Request
destination
module
station No.
12
F 0 0 0 0
46H 30H 30H 30H 30H
0 0
30H 30H
Monitoring timer
4 seconds
1 8 0 0 1
31H 38H 30H 30H 31H
Number of device points
0 0 0 0 2
30H 30H 30H 30H 32H
End code
0000H
0 C 0 0 0
30H 43H 30H 30H 30H
0 2
30H 32H
APPENDICES APPENDIX
Appendix 7 Setting Examples
0
30H
A
0
30H
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