Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 77)

Rockwell Automation Publication 1756-UM514C-EN-P - June 2014 77
Messaging Between PLC-5 and SLC 5/04 Controllers Chapter 5
DH+ Messaging: PLC-5 to
PLC-5/C Controllers on the
ControlNet Network This application sends a DH+ message from PLC-5 controller A through
1756-DHRIO and 1756-CNB modules to PLC-5C controller B on the
ControlNet network. Remote DH+ messaging is required to send the message.
The following figure illustrates the steps you must use in this application.
1756-CNB
Node Number:22
PLC-5C Controller B
Node Number: 45
41288
ControlNet Link
Link ID 2
1756-DHRIO
PLC-5/25 Controller A
Node Number: 015
Channel A
Node Number: 010
DH+ Link
Link ID 1