Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 85)

Rockwell Automation Publication 1756-UM514C-EN-P - June 2014 85
Messaging Between PLC-5 or SLC 5/04 Controllers and ControlLogix Controllers Chapter 6
DH+ Messaging: SLC 5/04 to a
ControlLogix Controller with
Multiple ControlLogix Chassis This application sends a DH+ message from SLC 5/04 controller A through a
1756-DHRIO or 1756-DHRIOXT module in ControlLogix system number 1
to a 1756-DHRIO or 1756-DHRIOXT module in ControlLogix system
number 2 to ControlLogix controller B. Remote DH+ messaging is required to
send the message.
The following figure illustrates the steps you must use in this application.
SLC 5/04 Controller A
Node Number: 050
DH+ Link
Link ID 1
41286
Channel A
Node number: 010
ControlNet Link
Link ID 2
This can be Ethernet, ControlNet or DH+ networks.
ControlLogix System 1 ControlLogix System 2
1756-CNB
Node Number: 23 ControlLogix Controller
Slot Number: 0 1756-CNB
Node Number: 22 1756-DHRIO
System 2 Backplane
Link ID 3