nt
        when a node’s values and attributes have been fully queried.
        At the
        time this notification is sent, the node’s information has been fully read at
        least once.  So this notification might
        trigger “full” display of the node’s information, values, etc.
        If this
        notification is not sent, it indicates that there has been a problem
        initializing the device.  The most
        common issue is that the node is a “sleeping” device.  The 