8.4 FlowMeasurementVariableType
The FlowMeasurementVariableType is a subtype of the AnalogSignalVariableType. It is formally defined in Table 240.
| Attribute | Value | ||||
| BrowseName | FlowMeasurementVariableType | ||||
| IsAbstract | False | ||||
| ValueRank | −2 (−2 = ‘Any’) | ||||
| DataType | Float | ||||
| References | NodeClass | BrowseName | DataType | TypeDefinition | Other |
|---|---|---|---|---|---|
| Subtype of AnalogSignalVariableType defined in 8.2, i.e. inheriting the InstanceDeclarations of that Node | |||||
| 0:HasProperty | Variable | LowFlowCutOff | 0:Float{Any} | 0:PropertyType | M |
| 0:HasComponent | Variable | FlowDirection | 0:UInt32{Any} | 0:MultiStateDictionaryEntryDiscreteType | O |
| Conformance Units | |||||
|---|---|---|---|---|---|
| PA-DIM FlowMeasurementVariable | |||||
| PA-DIM FlowMeasurementVariable FlowDirection |
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#003 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 241.
| SourceBrowsePath | Reference Type | Is Forward | TargetBrowsePath |
| LowFlowCutOff | 0:HasDictionaryEntry | True | 3:0112/2///61987#ABJ724#003 |
| FlowDirection | 0:HasDictionaryEntry | True | 3:0112/2///61987#ABN594#003 |
The child Nodes of the FlowMeasurementVariableType have additional Attribute values defined in Table 242.
| BrowsePath | Value Attribute |
| FlowDirection | 0 |
| ns=3;s=0112/2///61987#ABM885#001 | |
| positive |