16 Rockwell Automation Publication 2080-UM005E-EN-E - March 2018
Chapter 2 About Your Controller
When the new node address is configured and applied, the port is not restarted.
You can verify that the node address has changed after performing RMCC by
looking at the Communication Diagnostics tab for the controller.
RMCC Modbus Example – Verify Address Change
You must ensure that the new node address being configured is unique
as it will not be checked against existing node addresses of other
devices.