Manage server connections

If the desired server does not appear in the dropdown, click on More and Manage Server Connections.

To add a new server to the list, click on Add at the bottom left and provide the following properties:

Name

The name that should appear in the server dropdown.

Endpoint URL

The physical address available on the network that allows clients to access the server. Besides standard URLs with HTTP, OPC UA uses its own schemes, such as opc.tcp. Examples of server endpoint URL strings are:

• http://opcua.example.com:51211/UA/SampleServer

• opc.tcp://opcua.example.com:51210/UA/SampleServer

Security Policy

Select the security policy that is supported by all clients the server needs to interact with. Avelon only supports policies that are considered secure. Weaker security policies with outdated algorithms are not available, but it is possible to not select a security policy at all and use anonymous authentiation.

Message Security Mode

Configures the general level of security applied to messages exchanged between client and server.

Sign

All messages are signed but not encrypted.

Sign and Encrypt

All messages are signed and encrypted.

Authentication

User authentication allows the server to verify the identity of the client user credentials.

Anonymous

No user information.

Password

The user is identified by a username and password.

Certificate

The user is identified by an X509v3 certificate.

Username

Username. Only available if Authentication is set to Password.

Password

Password. Only available if Authentication is set to Password.

To test whether a connection to the server can be established, click on Test Connection below.

To save the connection, click on Save at the bottom right. The server will now appear in the Server dropdown in the left sidebar.