Performing OPC UA Client Adapter Offline Configuration

Scenario: You want to prepare the OPC UA configuration in offline mode by importing CSV files and editing configuration data in the OPC UA Client Adapter web client.

 

Offline engineering is recommended if you want to work with OPC UA offline data.
Performing online engineering is recommended instead if you want to work with OPC UA online data.
Furthermore, to set functions and alarms, see Setting OPC UA Client Advanced Configuration; to customize an alarm table, see Customizing Alarm Classes.

 

In each configuration section of the OPC UA Client Adapter web client, an asterisk (*) indicates unsaved changes.
Since Desigo CC will not inform you of any OPC UA client unsaved data, before changing node selection in System Browser, make sure that you have saved the changes in the OPC UA Client Adapter web client, or your changes will be lost.

 

Reference: For background information, see the reference section.

 

Workflow diagram:

 

 

Prerequisites:

For security reasons, the OPC UA Client Adapter web client must run on the same computer where the adapter software was installed. For instructions, see Installing and Starting the OPC UA Client Adapter.

 

  • The OPC UA Client extension is installed and included in the active project. The following dependent extension is also included automatically:
    • SORIS Driver
  • System Manager is in Engineering mode.
  • System Browser is in Management View.

 

Steps:

1 – Select the OPC UA Server
  1. In the OPC UA Client Configuration section, click Connection Settings.
  1. In the Servers Discovery area, do the following:
    a. Click Recently Used.
    b.     From the list select one of the available recently used OPC UA third-party servers.
    NOTE: To remove the configuration of a server from the list, select it, click Delete server configuration , and then click Yes.
  • The Server Settings and Authentication Mode parameters are retrieved from the configuration file. For security reasons, connection parameters settings edited in offline mode are not saved. (As a matter of fact only in online mode you can definitely check that the server settings and authentication mode allow establishing a connection to the OPC UA third-party server.)

 

2 – Activate Offline Mode
  • In the Connection Settings section, do the following:
    a. Toggle on Offline Mode.
    b. Click Connect.

 

3 – Adjust Offline Data

 

4 – Save the Configuration
  1. To save the changes in the configuration file, in the OPC UA Client Configuration section, click Save.
    NOTE: If the configuration is invalid, the OPC UA Client Configuration dialog box informs you of the errors. In particular, the severity of the errors is graphically indicated, including a brief description of the error.
    If there are critical errors , the current configuration will not be saved.
    If there are less severe errors or the current configuration will be saved, but any points with errors will not be imported.
    You may want to click Export Logs to export the errors to the Logs.txt file, and then revise the configuration.
  1. If prompted to confirm the changes, click Yes.
  • An event is generated to indicate that the adapter is loading the latest configuration.
  1. Proceed to step 5 – Discover the Adapter Configuration.

 

5 – Discover the Adapter Configuration
  • In the Extended Operation tab, next to the URL property, click Discover.
  • System Browser refreshes and displays the OPC UA Client configuration.