Ignition has a few drivers in the form of modules that allow you to connect to specific types of devices over OPC UA. Each module provides the ability to connect to different types of devices.
Device Diagnostic Tags
All drivers include built-in diagnostic tags that can be used to monitor the health of the device connection. Some of these metrics can also be found on the Device Connections Status page on the Gateway.
Root Diagnostic Tags
A Boolean representing the connection between the device and the OPC UA server.
Replaced the legacy "isConnected" tag, which was functionally the same.
|Hostname||The hostname of the device, as configured in the device configuration on the Gateway.|
|Name||The name of the device, as configured in the device configuration on the Gateway.|
|Port||Represents the port used to communicate with the device.|
|State||A string representing the state of the device configuration. Example: "Connected", "Disconnected".|
|Status||A string representing the status of the device configuration. Generally provides more granular information than the State tag.|