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3 result(s) for RefreshRequiredEventType

• OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions
  5.11.4 RefreshRequiredEventType
  RefreshRequiredEventType This EventType is used by a Server to indicate that a significant change has occurred in the Server or in the subsystem below the Server that could or does ... Subscription . Its representation in the AddressSpace is formally defined in Table 135 . Table 135 - RefreshRequiredEventType definition Attribute Value BrowseName RefreshRequiredEventType IsAbstract True References NodeClass BrowseName DataType TypeDefinition ModellingRule Subtype
• OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions
  4.5 Condition state synchronization
  with the underlying system. In these cases, the Server sends an Event of the RefreshRequiredEventType to advise the Client that a Refresh may be necessary. A Client receiving this special ... ensure a Client is always informed, the three special EventTypes ( RefreshEndEventType , RefreshStartEventType and RefreshRequiredEventType ) ignore the Event content filtering associated with a Subscription and will always be delivered
• OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions
  5.14.3 Redundant A & C servers
  Subscriptions for Events may require a Refresh operation. The Server shall issue a RefreshRequiredEventType Event if it is required. For transparent redundancy, a Server shall not require any action