This event is fired when the CommLinkTo reference between two EthernetPortType objects is created, removed or changed. The event is fired by the PnPortType object.
This means that the physical network topology has changed.
The Severity variable (inherited from BaseEventType) shall be set to 1.
Table 104 – PnTopologyChangedEventType Definition
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Attribute |
Value |
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BrowseName |
PnTopologyChangedEventType |
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IsAbstract |
False |
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References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Modelling Rule |
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Subtype of BaseEventType defined in [OPC 10000-5]. |
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The SourceNode variable of the event includes the NodeId of the PnPortType object.