According to BACnet specification 15.7.3.1.2 the service ReadPropertyMultiple with property identifier ALL means all properties including any proprietary properties are to be accessed.
BACnett4J does not return proprietary properties for ReadPropertyMultile requests when ListOfPropertyReferences is ALL (checked with Wireshark and AnalogValue/BinaryValue objects)
According to BACnet specification 15.7.3.1.2 the service ReadPropertyMultiple with property identifier ALL means all properties including any proprietary properties are to be accessed.
BACnett4J does not return proprietary properties for ReadPropertyMultile requests when ListOfPropertyReferences is ALL (checked with Wireshark and AnalogValue/BinaryValue objects)