BACnetWritePropertyInstance (FUN)¶

FUNCTION BACnetWritePropertyInstance : IEC_BACNET_STATUS

Updates an object property with new data value.

This function works like ::BACnetStorePropertyInstance does but it emulates the access like an external WriteProperty access from an external BACnet client. All access, priorization and range checks are executed by this call and on return the occurred BACnet error code will be returned.

Return: IEC_BACNET_STATUS

InOut:

Scope	Name	Type	Comment
Return	`BACnetWritePropertyInstance`	IEC_BACNET_STATUS
Input	`instNumber`	IEC_BACNET_INST_NUMBER	The device instance number in which the object exists.
	`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.
	`priority`	IEC_BACNET_PRIORITY_LEVEL	The priority level for the Write-Property request, in case the Property is a commandable Property. If not the priority level BACNET_VOID_PRI should be used.
	`pValue`	POINTER TO IEC_BACNET_PROPERTY_CONTENTS	Pointer to a property pontents containing a buffer which contains the value.
	`pValueSrc`	POINTER TO IEC_BACNET_AUDIT_VALUE_SOURCE	Pointer to a value source structure which describes the source of the new value.
	`pError`	POINTER TO IEC_BACNET_ERROR	A pointer to store the returned BACnet error code.