Configuration of the endpoints
The UA Endpoints tab in the TwinCAT OPC UA Gateway Configurator allows you to make settings for the OPC UA endpoint configuration. The OPC UA endpoint is the connection information required by an OPC UA client to connect to the gateway.
The configuration options available in this tab are described in more detail below.
General
In this area, you can enable the configuration switch Allow deprecated security policies to activate deprecated and potentially insecure security policies in the gateway. However, we recommend leaving this option disabled and enabling it only in case of compatibility issues with old OPC UA clients. In this case, however, the correct procedure would be to contact the client vendor for an update.
Endpoints
Here you can define all necessary settings for the different OPC UA endpoints, create new endpoints or remove them. A predefined endpoint is already available on delivery, which should normally be sufficient for all applications. This endpoint defines the available security policies, as well as settings for the Network Configuration, Port, Reverse Connect Client URLs and any Security Check Overrides.
These configuration elements are described in more detail in the following sections.
Network Configuration
In this area, you can define the network interface for which the endpoint is to be configured. The endpoint that is defined in the delivery state of the gateway is automatically configured for all network interfaces. This means that the gateway can be accessed through any network interface installed and configured in the operating system. The following configuration parameters can be defined here:
Configuration parameters | Description |
|---|---|
Endpoint URL | Endpoint URL of the gateway as it appears in the OPC UA client when GetEndpoint is called. |
Protocol | Protocol to be used. Only the "UA TCP" protocol is supported. |
Hostname / IP | Host name or IP address of the device on which the gateway was installed. |
Network Adapter | Selection of the network adapter under which the gateway should be accessible for OPC UA clients. |
Port | Network port (TCP) under which the gateway should be accessible for OPC UA clients. |
Security
In this area, you can configure the supported security policies of the endpoint. Activate the checkboxes in front of the respective security policy to configure it for the endpoint. Next to the security policy is a selection element for the Message Security Mode that applies to the endpoint.
Reverse Connect Client URLs
In this area, you can enter the endpoint URLs of clients that are to be used for the Reverse Connect functionality.
Security Check Overrides
In this area, you can configure exception rules for the validation of various security options.