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In the Engineering Environment, navigate to the Info > Settings tab, and look for the OPC Server Runtime configuration. Select the OPC UA, and click on Settings.
An OPC Server configuration dialog will open that will request admin privileges. In the configuration manager, we can configure Endpoint characteristics for the server, manage Client certificates, and create a certificate for the Server.
In this tab, you can define the Endpoints in which the OPC Server will be deployed (1), select the Security Policies (2), and enable/disable anonymous user log in (3).
Clicking on the Add or Edit buttons will open a popup that allows the user to select the IP Address and Port number. Itss also possible to define the IP for a specific network adapter that is available in the system. This can guarantee some security to your OPC; like making it inaccessible for anyone outside of your network.
It is important to make sure the defined ports are not blocked by the OS firewall.
The OPC Server's user management is done by the project's Security Module. The existing Users and Runtime Users, and their associated passwords, can be used to allow client connection.
In this tab, you can import Client Certificates and choose to Trust or Reject them.
The list will display all Clients Certificates that were imported and their current trust status.
In this tab, you can view the details of the Server Certificate, export the file (to import and trust the OPC Client), and Reissue it.
When the Reissue option is selected, all existing trust relationships that depended on the Server Certificate will be invalidated.
Once all the configurations are done, you can launch the Project to test the communication exchange. Remember to have the OPC Server Module enabled in Run > Startup.
Open your OPC Client of choice (that is trusted by the OPC Server) and connect to the Endpoint defined to it. If your configuration was done correctly, you should see the following folders in the Server Address Space:
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The status of the Server can be observed through the Diagnostic tools, which are: