Inactivity

The probe can disconnect from the OPC Unified Architecture (UA) server and shut down if there is no event activity for a predefined amount of time.

You can use the Inactivity property to specify how long, in seconds, the probe waits before disconnecting from the OPC UA server and shutting down. If the probe receives no events during that time, it disconnects from the server and shuts down. To ensure that the probe never disconnects from the server, set the value of the property to 0, which is the default value.