Can Historian data be exposed via OPC?

Question

Is there a way where we can expose historian data via OPC UA and then access this data on a 3rd party OPC UA client?

Elliott Middleton · Accepted Answer

It depends on what kind of data you want to expose via OPC. The OI Gateway will serve "latest value" via OPC- DA (but as of April 2024, not OPC-UA) , but will not expose historical data or alarm history. 
 It also depends on what you are trying to achieve with the client: many OPC clients needing historical data also support SQL and REST interfaces for that, which can work with Historian directly. In most cases the SQL interface will be more flexible than the OPC-UA one.

Can Historian data be exposed via OPC?

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