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3 result(s) for Subscription.

• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.14.1.4 Functions
  CreateNotificationMsg() Increment the SeqNum and create a NotificationMessage from the MonitoredItems assigned to the Subscription . Save the newly-created NotificationMessage in the retransmission queue. If all available Notifications ... FALSE. Otherwise, it is set to TRUE. CreateSubscription() Attempt to create the Subscription . DeleteAckedNotificationMsgs() Delete the NotificationMessages from the retransmission queue that were acknowledged by the request. DeleteClientPublReqQueue() Clear
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  6.7 Re-establishing connections
  establishing connections After a Client establishes a connection to a Server and creates a Subscription , the Client monitors the connection status. Figure 36 shows the steps to connect a Client ... Client to monitor the connection status is through the keep-alive of the Subscription . A Client should subscribe for the State Variable in the ServerStatus to detect shutdown or other
• OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions
  D.3.9.4 Filter by area
  Proxy implements Area filtering by adjusting the set of MonitoredItem s associated with a Subscription . In the simple case where the Client selects no area filter ... Proxy will create a UA Subscription which contains just one MonitoredItem , the Server Object . In doing so, the A&E COM UA Proxy will receive Event s from