This ReferenceType is a concrete ReferenceType that can be used directly. It is a subtype of the NonHierarchicalReferences ReferenceType and will be used to relate HistoricalEventNode to a Node that is the source of the data being historized. Typically, this node is an external node in another Server.
Its representation in the AddressSpace is specified in Table 9. The Source node of this reference type shall be a HistoricalEventNode. The Target node shall be any Object or View that has the EventNotifier Attribute set to TRUE.
Table 9 – HasCurrentEvent ReferenceType
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Attributes |
Value |
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BrowseName |
HasCurrentEvent |
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InverseName |
HasHistoricalEvent |
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Symmetric |
False |
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IsAbstract |
False |
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References |
NodeClass |
BrowseName |
Comment |
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The subtype of NonHierarchicalReferences ReferenceType is defined in OPC 10000-5. |
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ConformanceUnits |
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Historical Access HasCurrentEvent |
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