Mitsubishi Electric MELSEC IQ-R series Reference Manual page 488

Connecting with a multidrop connection
When accessing a multidrop connection station, specify the station No. of an access target to the station No.
When requiring to distinguish request sources in a m:n connection, specify the station No. of an external device to the self-
station No.
The following shows setting examples for accessing a multidrop connection station.
External device
External device
External device : Station No. 31
: Unnecessary
Access target
Multidrop connection station
• Station No.1
All stations connected with a
multidrop connection
(Global function)
Multidrop connection station
(At m:n connection)
• Station No.1
• Station No.31 (1FH) of the
external device
APPENDICES APPENDIX
486
Appendix 7 Setting Examples
Multidrop connection
Multidrop connection
(Global function)
m:n multidrop connection
C24
Frame Station No.
4C 01
3C 01
2C 01
1C 01
4C FF
3C FF
2C FF
4C 01
3C 01
2C 01
Station No.1
:Access target station
(Station specified to the station No.)
:Access target station
C24: Station No.1
Network No. PC No.
00 FF
00 FF
 
 FF
00 FF
00 FF
 
00 FF
00 FF
 
:Request source external device
(Station specified to the Self-station No.)
:Access target station
(Station specified to the station No.)
Request Request
destination destination
module I/O No. module station
No.
03FF 00
 
 
 
03FF 00
 
 
03FF 00
 
 
Self-
station
No.
00
00
00

00
00
00
1F
1F
1F