36 Rockwell Automation Publication 1756-UM004C-EN-P - June 2021
Chapter 3 Connect Redundant EtherNet/IP Adapters
12. To verify that the redundancy feature created a redundant adapter
system, click on the general tab.
You should see the properties for the module defined with both Slot 0
and Slot 1.
If the primary module was in slot 1 and a switchover occurred, you can see a
change in the serial number of the module to match the module in slot 1.