Mitsubishi Electric MELSEC iQ-R Series - Accessing Devices for Indirect Specification

APPENDICES APPENDIX
Appendix 1 Read/Write by Device Extension Specification
451
A
Accessing devices for indirect specification
Access the device corresponding to the address stored in the word device (2 points).
Store the address of the access target device in the device for the indirect specification, and represent the data as '@ + device
for indirect specification'.
For details on the indirect specification, refer to the following manual.
 MELSEC iQ-R CPU Module User's Manual (Application)
The following device access commands can be used for access.
Message format for device extension specification
■Data communication in ASCII code
■Data communication in binary code
Function Command Subcommand
Random read 0403 0080, 0082, 00C0
Random write 1402 0080, 0082
Register monitor data 0801 0080, 0082, 00C0
Subcommand type ASCII code
For MELSEC-Q/L series
For MELSEC iQ-R series
Subcommand type Binary code
For MELSEC-Q/L series
For MELSEC iQ-R series
Z
Device
code
Indirect
specification
Device number
Device modification
+
@
00
30 H 30 H
0
30 H
00
30 H 30 H
0
30 H
0
30 H 40 H
0
30 H
Device
code
Device
modification
Device number
@
0
30 H 40 H
0
30 H
0
30 H
0
30 H
0
30 H
0
30 H
0
30 H
0
30 H
0
30 H
Device code Device number Device modification
@
00 H 00 H
H
8 H
00 H 00 H 00 H
Device
code
Device
number
Indirect specification
Device modification
H 8 H
00 H 00 H 00 H 00 H 00 H
Device
code
Device number
Indirect specification
Device modification