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6.4.30 SystemStatusChangeEventType

This EventTypeis defined in OPC 10000-3. Its representation in the AddressSpaceis formally defined in Table 51.

Table 51– SystemStatusChangeEventType Definition

Attribute

Value

BrowseName

SystemStatusChangeEventType

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the SystemEventTypedefined in 6.4.28, which means it inherits the InstanceDeclarations of that Node.

HasProperty

Variable

SystemState

ServerState

PropertyType

Mandatory

This EventTypeinherits all Propertiesof the SystemEventType. Their semantic is defined in 6.4.28. The SourceNode Propertyand the SourceNameshall identify the system. The system can be the Serveritself or some underlying system.

The SystemStatespecifies the current state of the system. Changes to the ServerStateof the system shall trigger a SystemStatusChangeEvent, when the event is supported by the system.

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