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What causes the Magelis to get the error: "Invalid PLC family/model/type" when communicating to a Schneider Electric PLC over Modbus/TCP?

Issue:
What causes the Magelis to get the error:  "Invalid PLC family/model/type" when communicating to a Schneider Electric PLC over Modbus/TCP?

Product Line:
Magelis, XBTGT/GK/GC/GH, HMIGTO/GTU/STO/STU, HMISCU, Box PC, Panel PC, MB/TCP, ModbusEquipment

Environment:


Cause:


Resolution:
This error usually means that the Magelis is not communicating to the correct PLC.  Either there's a duplicate IP address as the PLC on the network.  Or the Magelis is communicating to itself.  Confirm the target network address and compare it to the Equipment IP address under IOManager are not the same.  If they are, change the IP address appropriately.
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