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OPC UA Server Configuration

The OPC UA Server Configuration page in allows users to manage and connect to OPC UA servers. These servers facilitate secure and reliable data exchange between industrial machines and the MES system.

Asaf Cohen avatar
Written by Asaf Cohen
Updated over 2 months ago

Navigation

  • Go to Modeling → Production Entity → OPC UA Servers

  • Select an existing server or add a new one

Fields and Their Descriptions

Active Toggle

  • ON: The server connection is active

  • OFF: The server connection is disabled

Name (Required)

  • The display name of the OPC UA server.

Endpoint URL (Required)

  • The connection URL for the OPC UA server.

  • Example: opc.tcp://<server_address>:49320

Security Mode (Required)

  • Defines the security level for communication.

  • Options:

    1. None – No security, communication is unencrypted.

    2. Sign – Messages are signed for integrity verification, preventing tampering but without encryption.

    3. Sign & Encrypt – Messages are both signed and encrypted, ensuring confidentiality and integrity.

Security Policy (Required)

  • Determines the encryption algorithm used for securing the communication.

  • Options:

    • None – No encryption applied.

    • Basic256Sha256 – Strong encryption with 256-bit keys and SHA-256 hashing.

    • Basic256 – Older encryption standard with 256-bit keys.

    • Basic128Rsa15 – Weaker encryption using 128-bit keys.

    • Aes256_Sha256_RsaPss – Advanced encryption with AES-256 and RSA-PSS signature.

    • Aes128_Sha256_RsaOaep – Uses AES-128 encryption with RSA-OAEP for key management.

User Name (Optional)

  • The username required for authentication.

  • If security mode is set to None, authentication may not be required.

Password (Optional)

  • The password associated with the username for authentication.

  • If modifying an existing server, leaving this field blank will retain the current password.

Actions

Test Connection

  • Validates the server configuration and checks if a connection can be established.

  • Useful for troubleshooting connectivity issues before saving changes.

Save

  • Saves the configuration changes.

  • Ensures that the provided details are stored for future use.

Troubleshooting

  • Ensure the Endpoint URL is correct and accessible.

  • Verify the Security Mode and Security Policy match the server settings.

  • If authentication fails, check the Username and Password.

  • Use the Test Connection button to confirm the connection before saving.

  • Open access for Next Plus’s external IPs:

    • 18.194.235.252

    • 3.67.56.178

    • 51.17.255.39

    • 51.17.120.178

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