BACnetRetrievePropertyInstance (FUN)

FUNCTION BACnetRetrievePropertyInstance : IEC_BACNET_STATUS

Reads a property value from the BACnet server database.

An application can get read access to any property stored in the local servers object database. It will not initiate an ReadProperty request to remote devices.

Return: IEC_BACNET_STATUS

InOut:

Scope	Name	Type	Comment
Return	BACnetRetrievePropertyInstance	IEC_BACNET_STATUS
Input	instNumber	IEC_BACNET_INST_NUMBER	Instance number of a Device object.
	pObjectID	POINTER TO IEC_BACNET_OBJECT_ID	A pointer to the object Identifier.
	ePropertyID	IEC_BACNET_PROPERTY_ID	The Property identifier of the local property.
	nIndex	IEC_BACNET_ARRAY_INDEX	The optional index information of an array item from a property if this property contains an array. BACnet array indexes start counting at 1.
	pVal	POINTER TO IEC_BACNET_PROPERTY_CONTENTS	Pointer to a property pontents containing a buffer which contains the value.