BACnetWhoIs (FUN)

FUNCTION BACnetWhoIs : IEC_BACNET_STATUS

Sends a who-Is request.

Return: IEC_BACNET_STATUS

InOut:

Scope	Name	Type	Comment
Return	BACnetWhoIs	IEC_BACNET_STATUS
Input	pSourceAddress	POINTER TO IEC_BACNET_ADDRESS	If the BACnet application has only one device constructed and installed, this can be NULL. In this case the MAC address of this device will be used. Otherwise this shall be the MAC address returned on device object construction.
	pDestinationAddress	POINTER TO IEC_BACNET_ADDRESS	This is the MAC address of the device to which the request should be sent.
	filterMin	IEC_BACNET_INST_NUMBER	Argument limit the lower range of Device instance numbers which shall respond to this request. The range is omitted if the value is set to ::BACNET_NO_FILTER.
	filterMax	IEC_BACNET_INST_NUMBER	Argument limit the upper range of Device instance numbers which shall respond to this request. The range is omitted if the value is set to ::BACNET_NO_FILTER.