PI points, PI AF elements, and attributes

PI Connector for OPC UA implements a few significant design changes. Some of them were already mentioned - the introduction of the PI Data Collection Manager and PI Connector Relay. The concept of operational modes is yet another important modification. In version 2, you have the option to operate the connector in four modes - Generic, ISA95, PCS7, and TagsOnly. Refer to Modes of operation for details on the individual modes.

In all modes but TagsOnly, the connector tries to create the closest replica of the discovered OPC UA objects in PI System. In cases when it is not possible, such as replicating child OPC UA variables to child attributes in PI AF, the connector will continue running without creating the objects.