Rockwell Automation Publication 2080-UM002N-EN-E - November 2022 29
Chapter 2 About Your Controller
RMCC Modbus Example – Set the Parameters
RMCC Modbus Example – Set the New Node Address
The first byte indicates the new node address for the controller. For this example, the new
node address is “3”. The second byte must always be “1”, this indicates that the Modbus role is
configured as Slave.
RMCC Modbus Example – Set the Message Length
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
IMPORTANT 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.
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