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What does the blinking COM status led mean on the ATV630 and ATV930 Process drives?

Issue:
What does the blinking COM status led mean on the ATV630 and ATV930 Process drives?

Product Line:
ATV630 and ATV930 

Environment:
All 

Cause:
Com's status LED will blink when they connect the remote HMI display to the modbus port.

Resolution:
LED will flash when the fieldbus is active and communicating.
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