28 Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
Chapter 2 About Your Controller
CIP Generic Message Instruction for Run Mode Configuration Change
Run Mode Configuration Change (RMCC) can only be performed by the controller that is sending
the message. To do that, you need to configure the CIP Generic message as a loop-back
message by setting the path to “0,0”.
Configure CIP Generic Message as a Loop-back Message
For Micro830/Micro850/Micro870 controllers, the address configuration change is permanent
and will retained when the controller is power cycled. From firmware revision 10 onwards,
Micro820 controllers also retain the address configuration when the controller is power cycled.
Using Modbus RTU Communication
To use RMCC with the Modbus RTU communication protocol, the serial port must be set to the
Modbus slave role. A CIP Generic message is sent from within a program with the following
parameters.
CIP Generic Message Parameters for RMCC using Modbus RTU
Parameter Value
Service 16
Class 70
Instance
2 – Embedded serial port
5, 6, 7, 8, or 9 – Plug-in modules
Attribute 100
ReqData New node address, 1
ReqLen 2
To Next Page
Loading...
Need help?
General
