Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 92)

92 Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Chapter 7 Messaging Between ControlLogix Controllers and PLC-5 or SLC 5/04 Controllers
DH+ Messaging:
ControlLogix Controller to a
SLC 5/04 Controller
over ControlNet and DH+
Networks This application sends a DH+ message from ControlLogix controller A to
SLC 5/04 controller B over ControlNet and DH+ networks. Remote DH+
messaging is used to send the message in this application.
The following figure illustrates the steps you must use in this application.
SLC-500 Controller B
Node Number: 025
DH+ Link
Link ID 4
41287
Channel B
Node Number: 020
DH+ Link
Link ID 3
ControlLogix System 1
Link ID 1 ControlLogix System 2
Link ID 2
1756-CNB
Node Number:22
Slot Number:3 ControlLogix Controller
Slot Number: 0 1756-CNB
Node Number:23
Slot Number:3 1756-DHRIO
Slot Number: 0