Mitsubishi Electric MELSEC IQ-R series Reference Manual page 490

Connecting with a multidrop link and via network
The following shows setting examples for connecting with a multidrop connection and via network.
■Other stations via network from a multidrop connection
Specify the setting for a multidrop connection including the connected station (host station) and the setting for a connection
via network each.
Specify the station No. of a multidrop connection station for a relay to the station No.
Specify the network No. and station No. of an access target to the network No. and PC No.
The following shows the setting example of the cases below.
• Multidrop connection station of the relay station: Station No.1
• Network module of the access target: Network No.1, station No.2
External device
: Unnecessary
Access target
Other stations via
network from a multidrop
connection
■Multidrop connection station via network
For accessing a multidrop connection station in the target via network, specify the start input/output number of a multidrop
connection source module and the station No. of an access target to the request destination module I/O No. and the request
destination module station No. For the request destination module I/O No., specify the value obtained by dividing the start
input/output number by 16 in 4 digits (hexadecimal).
Specify the network No. and station No. of a network module for a relay station to the network No. and PC No.
The following shows the setting example of the cases below.
• Network module for the relay station: Network No.1, station No.2
• Multidrop connection source module of the relay station: Start input/output number 0050H (request destination module I/O
No.0005H)
• Multidrop connection station of the access target: Station No.1
External device
: Unnecessary
Access target
Multidrop connection
station via network
APPENDICES APPENDIX
488
Appendix 7 Setting Examples
Multidrop connection
Station No.1
Connected station (Relay station)
(Host station)
Frame Station No. Network No.
4C 01 01
3C 01 01
Connected station
(Host station)
Network
No.1
Frame Station No. Network No.
4C 00 01

4E/3E 01
Station No.2
Network
No.1
Other stations
PC No. Request
destination
module I/O No.
02 03FF
02 
Multidrop connection
(Relay station)
Station No.2
Station No.1
Start
input/output No.
0005
PC No. Request
destination
module I/O No.
02 0005
02 0005
:Station specified to the station No.
:Access target station
(Station specified to the network No. and PC No.)
Request
destination
module station
No.
00

:Station specified to the network No.
and PC No.
:Station specified to the request
destination module I/O No.
:Access target station
(Station specified to the request
destination module station No.)
Request
destination
module station
No.
01
01
Self-
station
No.
00
00
Self-
station
No.
00
