General settings

The General tab in the TwinCAT OPC UA Gateway Configurator can be used to make general settings for the gateway.

General settings 1:

These settings are described in more detail below.

Autostart

In this area you can configure the autostart behavior of the TwinCAT OPC UA Gateway. Activate the UaGateway Runtime Process option to start the Windows service of the gateway automatically when the computer is switched on. Activate the Notification Area Icon option to start the Windows system tray icon of the gateway when a user logs on.

Launching User

The TwinCAT OPC UA Gateway is registered as a Windows service by default and is automatically started when the system is started. A specific user context is assigned to the Windows service. The user you select here is assigned to the Windows service. In addition, the user is granted the "LogOnAsService" right and is added to the local user group "UaGatewayUsers".

User Authentication

In this area, you can define which IdentityTokens are available when an OPC UA client is connected to the gateway. You can also define a user group that should have access to the gateway. Users from this user group can then be used by an OPC UA client when establishing a connection.

Configuration Permissions

It is possible to allow only certain users to change the configuration of the gateway, i.e. to add or remove connections to lower-level servers. You can select from the following settings:

Everyone

Any user (including users logged in anonymously via OPC UA) who can establish a connection with the gateway can change the configuration.

Limit to operating system users

Only local users and users from the same domain can change the configuration.

Limit to users of this group

Only users in a specific group are allowed to change the configuration.

UA Discovery Registration

Activate the Register at Local Discovery Server option if the gateway is to be registered with the local Local Discovery Server (LDS).

General settings 2:

Remote DCOM Access

Depending on the version of the TwinCAT OPC UA Gateway used, the configuration option Remote DCOM Access may also be displayed. These configuration parameters are not supported by the gateway and can be ignored. See also System requirements.