Can we use VAM 4C (current I/O unit) as a stand alone over current protection relay?

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Issue:
Using VAM 4C as a stand alone over current relay without being connected to VAMP 321.

Environment:
VAMP I/O units

Resolution:
VAM 4C can not be used as a stand alone over current protection relay. VAM 4C is a Modbus slave that always requires a master.