GetPIExpressionSummary Properties
- Last UpdatedDec 15, 2025
- 2 minute read
The GetPIExpressionSummary type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
 | Basis | Specifies the method of evaluating the events. |
| Connection | Specifies which connection to a PI Data Archive to use. |
| Expression | PI Performance equation expression to evaluate |
| Intervals | Number of evenly spaced intervals in each time range. This array has to be one element shorter than Times. |
| Reverse | Return values in reverse order |
| SampleIntervals | Number of evenly spaced intervals in each sampling time range. This array has to be one element shorter than SampleTimes. |
| SampleTimes | Timestamps to sample |
| SummaryType | Specifies the kind(s) of summaries to make. Any combination of summaries is valid. To make your own combination, use: [OSIsoft.PI.Net.SummariesType] "option1, option2, ..., optionN" |
| Times | The time ranges. If the whole range is evenly spaced, this argument has only two elements, the starttime and endtime. |