Process Automation Devices - PADIM - 8.11 ControlVariableType

The ControlVariableType is a subtype of the AnalogSignalVariableType. It is formally defined in Table 249.

Table 249 – ControlVariableType definition

Attribute	Value
BrowseName	ControlVariableType
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:HasComponent	Variable	Setpoint	0:Float{Any}	0:BaseAnalogType	M
0:HasComponent	Variable	OperatingDirection	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	M
0:HasComponent	Variable	ActuatorType	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	M
0:HasDictionaryEntry	Object	3:0112/2///61987#ABP588#001		0:IrdiDictionaryEntryType
Conformance Units
PA-DIM ControlVariable

This type defines control which is used e.g. for an actuator, positioner.

ABP588#001 defines readback value of the position of an analog final control element within the travel span (between OPEN and CLOSE position). The unit of this value is provided by the EngineeringUnits property.

Setpoint: ABN607#002 defines set point for a valve position.

OperatingDirection: ABD740#003 defines output change to a given input signal. For mapping rules see 8.2.4.

ActuatorType: ABD742#003 defines classification of a positioner according to the actuator for which it can be used. For mapping rules see 8.2.4.

The components of ControlVariableType have additional references which are defined in Table 250.

Table 250 – ControlVariableType additional References

SourceBrowsePath

Reference Type

Is Forward

TargetBrowsePath

Setpoint

0:HasDictionaryEntry

True