For using PI API, you can refer to the help document "piapi.chm" under folder %pihome%\help:
For PI API examples, you can refer to examples of Basic/C under folder %pihome%\examples.
If you are looking for developer technologies please refer to: OSIsoft Developer Technologies
PI Connectors and PI Interfaces can be used to collect data from standard sources.
If your intention is to develop using PI API, keep in mind that it is a deprecated developer tool.
We strongly recommend using either PI Web API and PI AF SDK for new projects.
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