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OPC UA configuration checklist

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  • Last UpdatedJul 16, 2024
  • 2 minute read

Required tasks for end-to-end configuration of the OPC UA server and OPC UA client

The configuration tasks are shown in the order in which they must be completed.

  1. Configure the System Management Server: The System Management Server is used for establishing a trust relationship between machines, and must be configured to ensure secure communications between nodes. The System Management Server is normally configured during initial System Platform installation but can be changed as needed. See Common Platform Services for details.

  2. Set Galaxy Security: Enabling Galaxy security is not mandatory but is strongly recommended. The OPC UA Server supports the Galaxy security configuration, and where username and password are required, it will leverage the Galaxy security configuration. See Configure security for details.

  3. Configure and deploy the OPC UA server: Set the configuration options and deploy the OPC UA server to a run-time node. For details, see Configure and deploy the OPC UA service.

  4. IT compliance/firewall validation: Firewall configuration and verification must be completed at this point of the configuration. The node to which the OPC UA Server has been deployed must have Inbound Rules for the firewall configured and verified.

    IMPORTANT! A firewall test must be successfully performed before proceeding with the remaining configuration tasks.

  5. Configure the OPC UA Client: Client configuration may include the following:

    • Define the OPC UA server address (in the format opc.tcp://<ServerName>:<PortNumber>).

    • Select the correct OPC UA server security policy (Basic256Sha256).

    • Enter the configured OPC UA User Credentials (username and password).

    • Recommended: Disable Anonymous User. Anonymous User is enabled by default.

  6. Security Certificate: Download and configure the OPC UA security certificate on the run-time node.

  7. Validate connectivity: Open the OPC UA client and verify that you can connect to the OPC UA Server, and can view items in the namespace.

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