Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 93)

Rockwell Automation Publication 1756-UM514C-EN-P - June 2014 93
Messaging Between ControlLogix Controllers and PLC-5 or SLC 5/04 Controllers Chapter 7
Configure the Module Switches
In this application, you must set switches on the 1756-DHRIO and
1756-DHRIOXT modules for DH+ and the switches on the 1756-CNB
modules to the correct node addresses. The 1756-CNB module in system
number 1 uses node address 22 and the 1756-CNB module in system number 2
uses node address 23.
Configure a Routing Table for the Module
Use RSLinx software to configure a routing table for the 1756-DHRIO and
1756-DHRIOXT modules in ControlLogix system number 2. The following
figure shows the routing table necessary for this example.
IMPORTANT The switches on the 1756-CNB modules must match the information in the
1756-DHRIO routing table.