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9 result(s) for EventNotifier Attribute

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  4.7.1 General
  AddressSpace . Objects and Views can be used to subscribe to Events . The EventNotifier Attribute of those Nodes identifies if the Node allows subscribing to Events . Clients subscribe to such Nodes ... exposed through other Nodes anywhere in the AddressSpace . These Nodes (identified via the EventNotifier Attribute ) provide some subset of the Events generated by the Server . The position in the AddressSpace
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.4 View NodeClass
  context of the View may lead to loops. EventNotifier M EventNotifierType The EventNotifier Attribute is used to indicate if the Node can be used to subscribe to Events ... able to identify if the View contains loops or not. The mandatory EventNotifier Attribute identifies if the View can be used to subscribe to Events that either occur
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.5.1 Object NodeClass
  NodeClass Attributes M -- Inherited from the Base NodeClass . See 5.2 . EventNotifier M EventNotifierType The EventNotifier Attribute is used to indicate if the Node can be used to subscribe to Events ... only be used for Objects having their "SubscribeToEvents" bit set in the EventNotifier Attribute . See 7.17 for details. HasNotifier 0..* The HasNotifier Reference points to notifiers
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.13.1.1 Overview
  change in value for these Attributes causes a Notification to be generated. The Value Attribute is used when monitoring Variables . Variable values are monitored for a change in value ... monitor Events . Events are only available from Nodes where the SubscribeToEvents bit of the EventNotifier Attribute is set. The filter defined in this document (see 7.22.3 ) is used to determine
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.3.4 HasCurrentEvent ReferenceType
  HistoricalEventNode. The Target node shall be any Object or View that has the EventNotifier Attribute set to TRUE. Table 9 - HasCurrentEvent ReferenceType Attributes Value BrowseName HasCurrentEvent InverseName HasHistoricalEvent Symmetric False
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.4.4 HistoricalEventNode Attributes
  history of the Events is writable. (0 means not writable, 1 means writable). The EventNotifier Attribute is used to indicate if the Node can be used to read and/or update
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.6.4 HistoricalEventNodes Address Space Model
  Views in the AddressSpace that expose historical Events . These Nodes are identified via the EventNotifier Attribute , and provide some historical subset of the Events generated by the Server . Each HistoricalEventNode ... historical Events are available, a Client will look for the HistoryRead/HistoryWrite states in the EventNotifier Attribute . See OPC 10000-3 for details on the use of this Attribute. Figure
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.5.2.1 ReadEventDetails structure details
  defines the ReadEventDetails structure. This parameter is only valid for Objects that have the EventNotifier Attribute set to TRUE (see OPC 10000-3 ). At least two of the three parameters
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  6.5.2.3 ReadEventDetails2 structure details
  event retrieval operations. ReadEventDetails2 is only valid for Objects that have the EventNotifier Attribute set to TRUE (see OPC 10000-3 ). At least two of the three parameters, numValuesPerNode , startTime