OPC UA functional overview

The Open Platform Communications United Architecture (OPC UA) Server supports reading and writing for tags.

The OPC UA Server has the following limitations:

• The server supports OPC Data Access – real time data only.
• Quality tag extensions are represented as a numeric value. Only the OPC quality is exposed.
• Alarm Properties as Tags are not exposed.
• Extended quality modes "Control Inhibit" and "Tag Override" are not available.
• Redundant OPC UA servers are not supported.