CAG2 : Communication Error Modbus Gateway

The number on the end of the error code refers to which module is having the issue.  A-F represents numbers above 9.  For example CAG#.

System does not detect a Modbus CGM that was registered as being connected at power up.

  • Unplug the Modbus CGM from the CAN network and re-plug it back in so that it re-registers with the new address.


  • Check that the Modbus CGM is properly connected to the CAN network and it's LEDs indicate it is powered.