Profibus DP card LEDs

Table: Profibus DP card LEDs
LED correct operating condition Fault indication Possible causes and corrective action
Power-On (green):
  • Continuous green for the simplex card
  • Flashing green for the redundant card
Off System power is not supplied to card due to a possible line power problem. Check the power connections.
Internal fault. Contact technical support.
Error-Off Red (continuous) Controller is not scanning card. Check controller operation.
Card failed self-test. Contact technical support.
Red (flashing) Controller is not scanning card. Check controller operation.
Address conflict. Replace card with known good card of same type; contact technical support.

Port 1 - On (yellow)

Port 2 is reserved

Off No communications. Check connections, cable, and external device.
Port not enabled. Enable port.
No configuration for this port. Configure port.
Yellow (flashing) Communication error on this port. Check connections, cable, and external device.