Converting COM Connector classes to and from native PI classes

Special handling is required in case of a native PI point's PtClassName edit to a COM Connector point class or vice versa. The difficulty arises because to allow transparent retrieval of data for a point that has some data in a foreign database and some in a PI archive, Data Archive must be aware of the cutoff times and go to the correct source. The possibility that the conversion may occur multiple times adds to the complexity.

History of the conversions is ignored and a data request is directed to the current data source.

Note: Starting with Data Archive 2018 SP3 Patch 1, COM connectors are no longer supported. If you need help to migrate any COM connectors, contact Customer Portal.