7 OPC UA ObjectTypes ToC Previous Next

7.20 ElectricalQuantitiesType ObjectType Definition ToC Previous Next

The ElectricalQuantitiesType provides Variables for Quantities of electrical properties and is formally defined in Table 43.

Table 43 – ElectricalQuantitiesType Definition

Attribute Value        
BrowseName ElectricalQuantitiesType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5.          
0:HasInterface ObjectType 3:IStatisticsType Defined in OPC 10000-200    
           
0:HasComponent Variable ApparentPower 0:Double 0:BaseAnalogType O, RO
0:HasComponent Variable Current 0:Double 0:BaseAnalogType O, RO
0:HasComponent Variable Energy 0:Double 0:BaseAnalogType O, RO
0:HasComponent Variable Power 0:Double 0:BaseAnalogType O, RO
0:HasComponent Variable Voltage 0:Double 0:BaseAnalogType O, RO
           
Applied from 3:IStatisticsType          
0:HasComponent Method 3:ResetStatistics See 3:IStatisticsType O  
0:HasProperty Variable 3:StartTime 0:DateTime 0:PropertyType O, RO

The Variable StartTime and the Method ResetStatistics are defined by the IStatisticsType and shall be used as defined by the Interface.

The InstanceDeclarations of the ElectricalQuantitiesType have additional Attributes defined in Table 44.

Table 44 – ElectricalQuantitiesType Attribute values for child Nodes

Source Path Value Attribute Description Attribute
ApparentPower   Measured or calculated actual apparent power consumption including all auxiliary components (e.g. on a compressor including fans, controller, …).
Current   Measured or calculated actual root mean square of the electric power consumption including all auxiliary components (e.g. on a compressor including fans, controller, …).
Energy   Measured or calculated accumulated electrical energy consumed including all auxiliary components (e.g. on a compressor including fans, controller, …) since last reset.
Power   Measured or calculated actual electric real power consumption including all auxiliary components (e.g. on a compressor including fans, controller, …).
Voltage   Measured or calculated actual root mean square of the voltage applied including all auxiliary components (e.g. on a compressor including fans, controller, …).

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