...
The AVEVA PI import connects to the AVEVA PI Web API (see https://docs.aveva.com/bundle/pi-web-api-reference/page/help.html) and supports importing the latest value, interpolated values and recorded values. If no relative view period is specified, a single value, which is the latest recorded, is imported. If start and end times are specified (i.e. a relative period is defined) and the timestep of the timeSeriesSet is non equidistant, recorded values are imported. If start and end times are specified (i.e. a relative period is defined) and the timestep of the timeSeriesSet is equidistant, interpolated values are imported.
Timestep type | Relative view period configured | Endpoint used | result |
Non-equidistant | No | /getValue | Last observed value |
Non-equidistant | Yes | /getRecorded | All observations within the relative view period |
Equidistant | Yes | /gettinterpolated | Interpolated values within the relative view period |
Equidistant | No | /getValue | Last observed value and logs a warning message |
AVEVA PI has a concept of web id which is equivalent to the combination of a location and a parameter. Web ids have to be configured in an id mapping configuration file.
...