The EngineeringValue Variables are used to expose key results of an analyser and the associated values that qualified it. This type helps the Clientquickly identify important values. For example, the concentration of a given chemical and the associated confidence factors like the F-Ratio from the PLS model. EngineeringValueTypeis formally defined in Table 84

Table 84– EngineeringValueType Definition

Attribute

Value

BrowseName

EngineeringValueType

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the DataItemTypedefined in [OPC 10000-8]

HasComponent

Variable

<Identifier>

DataItemType

OptionalPlaceHolder

The Value Attributeof the EngineeringValueis the main value, for example, the concentration. Its HasComponentelements are there to qualify or describe this value. For example the associated confidence factors like F-Ratio from the PLS model.