This EventTypeis used by a Serverto indicate that a significant change has occurred in the Serveror in the subsystem below the Serverthat may or does invalidate the Conditionstate of a Subscription. Its representation in the AddressSpaceis formally defined in Table 135.
Table 135– RefreshRequiredEventType definition
Attribute |
Value |
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BrowseName |
RefreshRequiredEventType |
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IsAbstract |
True |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
|
|
|
|
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Subtype of the SystemEventTypedefined in 10000-5, i.e. it has HasProperty Referencesto the same Nodes. |
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ConformanceUnits |
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A & C Refresh |
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A & C Refresh2 |
When a Serverdetects an Eventqueue overflow, it shall track if any Condition Events have been lost, if any Condition Events were lost, it shall issue a RefreshRequiredEventType Eventto the Clientafter the Eventqueue is no longer in an overflow state.