The VariableType defines the general characteristics of a MeasuredItem. A MeasuredItem is an OPC UA variable that represents a measured value. It adds some properties that describe the measurement parameters. It is formally defined in Table 137 and is leaned to the AnalogItemType from OPC 10000-8.

Figure 68 – Overview MeasuredItemType

Table 137 – MeasuredItemType Definition

Attribute	Value
BrowseName	MeasuredItemType
IsAbstract	False
ValueRank	-2
DataType	BaseDataType
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the DataItemType
0:HasProperty	Variable	0:EngineeringUnits	0:EUInformation	0:PropertyType	Mandatory
0:HasProperty	Variable	0:EURange	0:Range	0:PropertyType	Mandatory
0:HasProperty	Variable	0:InstrumentRange	0:Range	0:PropertyType	Optional

EngineeringUnits specifies the units for the DataItem’s value (e.g. DEGC, hertz, seconds). The 0:EUInformation type is specified in OPC 10000-8. If the DataType is a WeightItemType or a PrintableWeightItemType it is the unit of net, gross and tare.

EURange is specified like the EURange of the AnalogItemType in OPC 10000-8. If the DataType is a WeightItemType or a PrintableWeightItemType it is the Range of net, gross and tare.

InstrumentRange is specified like the EURange of the AnalogItemType in OPC 10000-8.