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7 result(s) for ModelChangeEvent

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.1 General
  Variable or VariableType are also considered as model changes and therefore a ModelChangeEvent is generated if the DataType Attribute changes
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.2 NodeVersion Property
  correlation between ModelChangeEvents and the NodeVersion Property of Nodes . Every time a ModelChangeEvent is issued for a Node , its NodeVersion shall be changed, and every time the NodeVersion is changed ... ModelChangeEvent shall be generated. A Server shall support both the ModelChangeEvent and the NodeVersion Property or neither, but never only one of the two mechanisms. This relation also implies that
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.3 Views
  Views A ModelChangeEvent is always generated in the context of a View, including the default View where the whole AddressSpace is considered. Therefore the only Notifiers which report the ModelChangeEvents ... View Nodes and the Server Object representing the default View . Each action generating a ModelChangeEvent may lead to several Events since it may affect different Views . If, for example
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.4 Event compression
  series may constitute a logical grouping or a temporal grouping of changes. A single ModelChangeEvent may be issued after the last change of the series, to cover
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.6 GeneralModelChangeEventType
  about the Node that was changed and the action that occurred to cause the ModelChangeEvent (e.g. add a Node , delete a Node , etc.). If the affected Node is a Variable
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  9.32.7 Guidelines for ModelChangeEvents
  Server and the nature of the update. An OPC UA Server may use either ModelChangeEvent type depending on circumstances. It may also define subtypes of these EventTypes adding additional information ... present, then it should identify every Node that has changed since the preceding ModelChangeEvent. The OPC UA Server should emit exactly one ModelChangeEvent for an update or series of updates
• OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model
  6.4.32 GeneralModelChangeEventType
  additional Property defined for this EventType reflects the changes that issued the ModelChangeEvent . It shall contain at least one entry in its array. Its structure is defined