The PatMeasurementVariableType is a subtype of the AnalyticalMeasurementVariableType. It is formally defined in Table 188.
Table 188 – PatMeasurementVariableType definition
|
Attribute |
Value |
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|
BrowseName |
PatMeasurementVariableType |
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|
IsAbstract |
False |
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|
ValueRank |
−1 (−1 = ‘Scalar’) |
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|
DataType |
Float |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of AnalyticalMeasurementVariableType defined in 8.13, i.e. inheriting the InstanceDeclarations of that Node |
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|
0:HasProperty |
Variable |
PatMeasurandDescription |
ChemicalSubstanceDataType |
0:PropertyType |
O |
|
0:HasProperty |
Variable |
PatMatrixDescription |
ChemicalSubstanceDataType[] |
0:PropertyType |
O |
|
0:HasDictionaryEntry |
Object |
3:<DictionaryEntryName> |
|
0:IrdiDictionaryEntryType |
|
|
Conformance Units |
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|
PA-DIM PatMeasurementVariableType |
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|
PA-DIM PatMeasurementVariableType PatMatrixDescription |
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This type defines a PAT measurement value.
PatMatrixDescription: The matrix is an array of all quantities that make up an entity of interest. Quantities are defined by an ID (from a dictionary like CAS or PAT, or defined by user resp. manufacturer) and an associated label.
PatMeasurandDescription: A Measurand is the quantity that is measured. Is it always a part of the matrix. Any quantity of the matrix can become a measurand within one analytical device. Measurands are defined by an ID (from a dictionary like CAS or PAT, or defined by user resp. manufacturer) and an associated label.
3:<DictionaryEntryName> is an optional placeholder for an object of IrdiDictionaryEntryType that defines a predefined group of one or more properties of the classes ABN688 (Concentration measurement variables) or ABN689 (Liquid analysis measurement variables), e.g. ABN628 – mass concentration (per volume) or ABN617 – pH value. ABN688 and ABN689 and their properties are defined in IEC 61987 Common Data Dictionary (CDD). They represent classes of analytical measurement variables.
The components of PatMeasurementVariableType have additional references which are defined in Table 189.
Table 189 – PatMeasurementVariableType additional References
|
SourceBrowsePath |
Reference Type |
Is Forward |
TargetBrowsePath |
|
PatMeasurandDescription |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP496#001 |
|
PatMatrixDescription |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP495#001 |