Get Interpolated Points

Returns interpolated values for tags across a time range.

Signature

• EIGEN.GETRANGE(datasource, tags, startT, endT, count = 1000, headers = false, showTag = true, tabular = false)

Parameters

• datasource (string): Historian name. If omitted, reads default from settings.
• tags (string[][]): One or more tag names.
• startT / endT (string): UTC start and end times. formatBounds normalizes inputs.
• count (number): Number of interpolated points to return per tag. Default: 1000.
• headers, showTag, tabular: see Advanced Options.

Returns

• string[][] — Array of rows with interpolated values sampled at regular intervals across the time range.
  • Default format: Each row is [Tag, Timestamp, Value] for each interpolation point.
  • With headers=true: Header row ["Tag", "Timestamp", "Value"] precedes data.
  • Multi-tag results: Returns all points for tag 1, then all points for tag 2, etc.

Notes

• Use count to control resolution; large counts may increase query time.

Example

• =EIGEN.GETRANGE("Demo-influxdb", "DEMO_02TI301.PV", "01/01/2024 00:00:00", "01/01/2024 01:00:00", 12) — 12 interpolated points across one hour for DEMO_02TI301.PV.

Sample output (3 of 12 points shown):

Tag	Timestamp	Value
DEMO_02TI301.PV	2024-01-01 00:00:00	70.0
DEMO_02TI301.PV	2024-01-01 00:05:00	71.3
DEMO_02TI301.PV	2024-01-01 00:10:00	72.5
…	…	…

Support

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