Note: The sensor automatically creates a lookup channel if the OPC UA server returns a Boolean. If the server returns the value 0 (false), the channel shows the Down status. If the server returns the value 1 (true), the channel shows the Up status. You can reverse the behavior by changing the lookup in the channel settings.
Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.