Configure engineering units

An engineering unit is the unit of measure for an analog tag. Examples of engineering unit types are CPS, pounds, or degrees.

Note: Engineering units are case-sensitive. That means that AVEVA Historian differentiates between ml (milliliters) and ML (megaliters), for example.

A tag's engineering unit displays in charts or reports where the tag is used. The Historian can only convert data between units defined in the engineering units catalog. To use your own familiar labels, you can create engineering units and map them to canonical units in the engineering units catalog. See Configure the engineering units catalog for more information.