The extractor copies the OPC hierarchy to CDF, then streams datapoints to time series in CDF. The OPC Classic extractor supports the following:Documentation Index
Fetch the complete documentation index at: https://docs.cognite.com/llms.txt
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- Connecting to multiple OPC servers over DCOM or COM+.
- Extracting string and numeric datapoints from OPC tags.
- Reading historical data from OPC HDA, storing progress in a local or remote state store.
- Starting from a local JSON file instead of reading the server on each startup, improving performance.