MultiStateDiscreteControlVariableType – OPC UA for Process Automation Devices

The MultiStateDiscreteControlVariableType is a subtype of the MultiStateDiscreteSignalVariableType. It is formally defined in Table 270.

Table 270 – MultiStateDiscreteControlVariableType definition

Attribute	Value
BrowseName	MultiStateDiscreteControlVariableType
IsAbstract	False
ValueRank	−1 (−1 = ‘Scalar’)
DataType	UInt32

References	NodeClass	BrowseName	DataType	TypeDefinition	Other
Subtype of MultiStateDiscreteSignalVariableType defined in 8.16, i.e. inheriting the InstanceDeclarations of that Node
0:HasComponent	Variable	Setpoint	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	M
0:HasComponent	Variable	OperatingDirection	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	O
0:HasComponent	Variable	FaultState	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	O
0:HasDictionaryEntry	Object	3:0112/2///61987#ABP644#002		0:IrdiDictionaryEntryType

Conformance Units
PA-DIM MultiStateDiscreteControlVariable
PA-DIM MultiStateDiscreteControlVariable OperatingDirection
PA-DIM MultiStateDiscreteControlVariable FaultState

This type defines control which is used for multi state discrete output.

Setpoint: ABP645#002 defines in a control loop, the multi-state target value the process value is intended to assume.

OperatingDirection: ABD740#003 defines output change to a given input signal, for example direct or reverse.

FaultState: ABP651#002 defines replacement value of a multi-state output in the case of a failure.

ABP644#002 defines parameter indicating the discrete readback value in a control loop.

The components of MultiStateDiscreteControlVariableType have additional references which are defined in Table 271.

Table 271 – MultiStateDiscreteControlVariableType additional References

The child Nodes of the MultiStateDiscreteControlVariableType have additional Attribute values defined in Table 272.

Table 272 – MultiStateDiscreteControlVariableType Attribute values for child Nodes