AI 16-channel 4-20 mA HART card LEDs

The following table describes the LEDs on the simplex S-series AI 16-Channel 4-20 mA HART card and the redundant S-series AI 16-Channel 4-20 mA HART Plus card.

Table: AI 8-Channel 4-20 mA HART card LEDs
LED correct operating condition Fault indication Possible causes and corrective action
Power/Active On (green)
  • Continuous green for the active card
  • Flashing green for the standby card
Off System power is not supplied to the card due to a possible line power problem. Check the power connections.
Internal fault. Contact technical support.
Error-Off Red (continuous)
No field power. Check field power source and connections.
Controller is not scanning card. Check controller operation.
Card failed self-test. Contact technical support.
Redundant card (red flashing) No field power. Check field power source and connections and use the DeltaV Diagnostics Clear Saved Fault Information command when the problem is fixed.
Controller is not scanning card. Check controller operation.
Hardware error. Replace card with card of same type, contact technical support.
Simplex card (red flashing) Controller is not scanning card. Check controller operation.