The FlowMeasurementVariableType is a subtype of the AnalogSignalVariableType. It is formally defined in Table 172.
Table 172 – FlowMeasurementVariableType definition
|
Attribute |
Value |
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|
BrowseName |
FlowMeasurementVariableType |
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|
IsAbstract |
False |
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|
ValueRank |
−2 (−2 = ‘Any’) |
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|
DataType |
Float |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of AnalogSignalVariableType defined in 8.2, i.e. inheriting the InstanceDeclarations of that Node |
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|
0:HasProperty |
Variable |
LowFlowCutOff |
0:Float{Any} |
0:PropertyType |
M |
|
0:HasComponent |
Variable |
FlowDirection |
0:UInt32{Any} |
0:MultiStateDictionaryEntryDiscreteType |
O |
|
Conformance Units |
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|
PA-DIM FlowMeasurementVariable |
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|
PA-DIM FlowMeasurementVariable FlowDirection |
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This type defines flow and is formally defined within the subtypes.
LowFlowCutOff: ABJ724#003 defines value of the flow below which the low flow cut-off is switched on, in units of the measuring span, which is fixed to percent. The default value is 1% of the high value of EURange.
FlowDirection: ABN594#002 defines configuration parameter of the value sign of the flow signal for forward flow. For mapping rules see 8.2.4.
The components of FlowMeasurementVariableType have additional references which are defined in Table 173.
Table 173 – FlowMeasurementVariableType additional References
|
SourceBrowsePath |
Reference Type |
Is Forward |
TargetBrowsePath |
|
LowFlowCutOff |
0:HasDictionaryEntry |
True |
|
|
FlowDirection |
0:HasDictionaryEntry |
True |
The child Nodes of the FlowMeasurementVariableType have additional Attribute values defined in Table 174.
Table 174 – FlowMeasurementVariableType Attribute values for child Nodes
|
BrowsePath |
Value Attribute |
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|
FlowDirection |
0 |
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|
ns=3;s=0112/2///61987#ABM885#001 |
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|
positive |