My Process Drive with Modbus serial is not indicating when my cable is disconnected or no Modbus communication?

Issue:
My Process Drive with  Modbus serial is not indicating when my cable is disconnected or no Modbus communication?

Product Line:
Altivar Machines

Environment:
All models and serial numbers

Cause:
Not default program to the drive.

Resolution:
Drive has to be configured for command and/or reference from Modbus or drive sees this as monitoring only, will not trip if it's not there.  Under Error/Warning Handling > Fieldbus Monitoring > SLL - Response to Modbus Interruption is set to Freewheel

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