| Name | Description | |
|---|---|---|
 | BackwardTimeOrder | Establish whether to resolve a query in backward time order (true) or forward time order (false). |
| CalculationMode | Establish a calculation mode for a query. See DataCriteria.CalculationModeType. |
| End | Establish an end time for a query. |
| FilterComparisonMode | Establish a filter comparison mode for a query. See DataCriteria.FilterComparisonModeType. |
| FilterComparisonValue | Establish a constant value to filter a query. This value is compared using FilterComparisonMode. |
| FilterExpression | Provide a complete filter Expression to query on. This is independent of the FilterTag. When the Filterexpression is set a FilterComparisonMode or FilterComparisonValue should not be provided. e.g. (Testag1 > 5000) |
| FilterMode | Establish a filter mode for a query. See DataCriteria.FilterModeType. |
| FilterTag | Establish a tag name to filter a query. Filtered tag queries evaluate the value of the filter tag against a constant comparison value and only retain time intervals where this comparison evaluates true. Filtered tag queries are further modified by DataCriteria.FilterModeType and DataCriteria.FilterComparisonModeType. |
| Interval | |
| IntervalMicroseconds | Establish a number of milliseconds between data samples for a query. |
| IntervalType | |
| NumberOfSamples | Establish a number of data samples to retrieve for a query. |
| QueryModifiers | Establish the QueryModifiers to a query. |
| SamplingMode | Establish a sampling mode for a query. See DataCriteria.SamplingModeType. |
| Start | Establish a start time for a query. |
| StateValue | Establish a value to for the calculation mode Statevalue or StateCount. |
| Tagnames | Establish a set of tag names for a query. |
Proficy Historian Client Access API