E_BACNETPOLARITY

PLC mapping of BACnet data type BACnetPolarity. See BACnet specification DIN EN ISO 16484-5 for property Polarity.

TYPE E_BACNETPOLARITY :
(
  BACnetPolarity_normal   := 0,
  BACnetPolarity_reverse  := 1
)
END_TYPE

BACnetPolarity_normal: Normal: e.g. BACnet binary input physically active (24V level/TRUE/ACTIVE) → property Present_Value = ACTIVE (if property Reliability = NO_FAULT_DETECTED and Out_Of_Service = FALSE).

BACnetPolarity_reverse: Reverse: e.g. BACnet binary input physically active (24V level/TRUE/ACTIVE) → property Present_Value = INACTIVE (if property Reliability = NO_FAULT_DETECTED and Out_Of_Service = FALSE).

Attention: The property Polarity does not affect the evaluation of the property Feedback_Value (e.g. BACnet binary output).