Learn about Units of Measure (UOM) and PI Data Archive

The connector can detect a value's unit of measure (UOM). The unit's representation in Data Archive depends on the unit representation in the data source. The connector attempts to map the unit from the data source into a standard unit abbreviation. Representing units in Data Archive is informational only; the units do not affect the representation or storage of the value.

The value for the EngUnits attribute in Data Archive is the unit representation provided by the connector.