Omron 3G8F5-DRM21-E - V2 Operation Manual page 123

Section 4-11
Displaying Device Properties
PLC Information
The name of the PLC model in use and the unit number of the master as PLC
Information will be displayed. To change the PLC model, click the Change
Unit Button. If the network configuration is read from the actual network, the
PLC model cannot be changed.
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