Create a Connection between a ViewX Client and a Third-Party OPC Server

To create a connection between a ViewX client and a third-party OPC server, on the ViewX client:

1. In Windows, select the Start menu. Scroll down the alphabetical list of installed applications and expand the EcoStruxure Geo SCADA folder. Select the Configure Connections option.
   The Geo SCADA Expert Client applet runs.
2. Select the Add button to display the Geo SCADA Expert Client Configuration window.
3. Define a name for the system in the System Name field. The name that you enter will be the name that is shown for the system in the OPC Data Bar in ViewX.
4. Use the Type combo box to define the type of server to which the ViewX client is to be connected. To connect to a third-party OPC data server choose the OPC Data Server option.

   

   The OPC Alarm Server and OPC Historic Server options that were available in previous releases of Geo SCADA Expert and ClearSCADA are no longer supported.

5. Leave the default setting for the Use Client Licensing check box in place (it has no effect on ViewX client - third-party OPC server connections).
6. Use the Visible in ViewX check box to define whether the OPC server will be visible in ViewX (shown in the OPC Data Bar).
   • Select the Visible in ViewX check box to set ViewX to connect to the third-party OPC server via the connection. The OPC server will be available in ViewX (via the OPC Data Bar), which means operators, engineers and administrators can use the client to interact with the OPC server.
   • Clear the Visible in ViewX check box to stop ViewX from providing access to the OPC server via the selected connection. If you clear the check box, the connection will be operational and can be used by other OPC applications on the ViewX client but will not be used by ViewX itself.
7. Use the Node tabs to define which third-party OPC servers can be connected to via the connection. Each Node tab represents one third-party OPC server, with the Class Identifier setting being used to choose the appropriate OPC server.

   

   The Class Identifier is provided by the third-party OPC server during its installation. You just need to select the appropriate Class Identifier for each Node.

   For example, if the ViewX client is to connect to 2 third-party OPC servers via the connection, you would use the Node A tab and Node B tabs. On the Node A tab, you would use the browse feature of the Class Identifier field to choose the class identifier of the first OPC server (the class identifier consists of the Name of the OPC server and its unique Class Id code). On the Node B tab, you would use the Class Identifier field to choose the class identifier of the second OPC server.

8. Select the OK button to confirm your selections and close the Geo SCADA Expert Client Configuration window.
9. Select the Close button on the Geo SCADA Expert Client applet.
   When you run ViewX, the connection between ViewX and the third-party OPC server will be available. If you have configured the connection to have the Visible in ViewX setting enabled, you will be able to browse to the OPC server via the OPC Data Bar .