InstrumentRange is defined in OPC 10000-8 as Property of the AnalogItemType. In this specification the Property is used for Variables, independent of the VariableType.

The Property uses the DataType Range defined in OPC 10000-8 having a low and a high value. The mapping of an IODD ValueRange to the OPC UA Range is defined in Table 69.

Table 69 – Mapping of IODD ValueRange to OPC UA Range

IODD attribute	OPC UA field
lowerValue	low
upperValue	high