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4.4.8 StateType

States of a FiniteStateMachine are represented as Objects of the StateType. Each Object of the StateType or one of its subtypes shall be referenced from the ObjectType FiniteStateMachineType or one of its subtypes using a HasComponent Reference or a subtype of HasComponent and shall not have a ModellingRule as they are not applied on the instances.

The StateType is formally defined in Table 7.

Table 7 – StateType definition

Attribute

Value

BrowseName

StateType

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the BaseObjectType defined in OPC 10000-5

Note that a Reference to this subtype is not shown in the definition of the BaseObjectType.

HasProperty

Variable

StateNumber

UInt32

PropertyType

Mandatory

HasSubtype

ObjectType

InitialStateType

Defined in 4.4.9

HasSubtype

ObjectType

ChoiceStateType

Defined in 4.6.2

Conformance Units

Base Info Finite State Machine Instance

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