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Entering Level 1 Node SAP OPC Data Access (SAP ODA)SAP OPC Data Access (SAP ODA)Leaving Level 1 Node SAP OPC Data Access (SAP ODA)
   Entering Level 2 Node Basic Concepts of OPC and SAP ODABasic Concepts of OPC and SAP ODALeaving Level 2 Node Basic Concepts of OPC and SAP ODA
      Entering Level 3 Node Technical CommunicationTechnical CommunicationLeaving Level 3 Node Technical Communication
      Entering Level 3 Node OPC Data Access Servers (DA Servers)OPC Data Access Servers (DA Servers)Leaving Level 3 Node OPC Data Access Servers (DA Servers)
      Entering Level 3 Node OPC Alarms/Events Servers (AE Servers)OPC Alarms/Events Servers (AE Servers)Leaving Level 3 Node OPC Alarms/Events Servers (AE Servers)
   Entering Level 2 Node SAP ODA FunctionsSAP ODA FunctionsLeaving Level 2 Node SAP ODA Functions
      Entering Level 3 Node Reading and Writing of ItemsReading and Writing of ItemsLeaving Level 3 Node Reading and Writing of Items
      Entering Level 3 Node Item SubscriptionItem SubscriptionLeaving Level 3 Node Item Subscription
      Entering Level 3 Node Event SubscriptionEvent SubscriptionLeaving Level 3 Node Event Subscription
   Entering Level 2 Node Installation and Deinstallation of the SAP ODA ConnectorInstallation and Deinstallation of the SAP ODA ConnectorLeaving Level 2 Node Installation and Deinstallation of the SAP ODA Connector
      Entering Level 3 Node Installing the SAP ODA ConnectorInstalling the SAP ODA ConnectorLeaving Level 3 Node Installing the SAP ODA Connector
      Entering Level 3 Node Using MS DOS Commands to Operate the SAP ODA ConnectorUsing MS DOS Commands to Operate the SAP ODA ConnectorLeaving Level 3 Node Using MS DOS Commands to Operate the SAP ODA Connector