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2 result(s) for SemanticChange

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.6.2 Variable NodeClass
  such a request is rejected. StatusCodes are defined in OPC 10000-4 . The SemanticChange flag of the AccessLevel Attribute is used for Properties that may change and define semantic aspects ... this example, if the EngineeringUnits Property may change while the Server is running, the SemanticChange flag shall be set for it. Servers that support Event Subscriptions shall generate a SemanticChangeEvent
• OPC-10000-25 – OPC Unified Architecture - Part 25: Object Serialization
  5.3 Semantic Property handling
  separate browse and read operations. Metadata changes can be notified using ModelChange and SemanticChange Events . When using Subscriptions , the Server can inform the Clients about metadata changes by setting ... scenarios. Another possibility is the establishment of Subscriptions comprising only the metadata ( ModelChange or SemanticChange Events , see above). To enable each of the possible scenarios for metadata handling outlined above