Configure the InTouch OPC UA Server

The InTouch OPC UA Server provides access from an OPC UA client to InTouch HMI data, without the need for a gateway, or other protocol translation mechanism.

1. Launch AVEVA InTouch HMI Application Manager.

2. On the Tools tab, select OPC UA Configuration.

   The OPC UA Server dialog box appears.

3. The OPC UA server will be disabled by default. To configure the server, select Enable OPCUA.

   

4. Edit the Port Number. By default the port will be set to 48032.

   Note: The port number is unique for a user and RDS session. Assign alternate port numbers for additional RDS sessions.

5. Security Configuration: It is strongly recommended that you enable this option, as this will encrypt the payloads across the connection. Note that the client must match this configuration.

6. The Client Access Rules options allow you to determine the type of access the client will have to InTouch data.

   1. Select the Allow anonymous client connection (no username/password) checkbox to allow anonymous access.

   2. Select the Allow authenticated InTouch Users to write to attributes, depending on their security role checkbox to allow only authenticated users.

7. Select OK.

8. After configuration, start the WindowViewer to launch the OPC UA Server. OPC UA clients can now access InTouch HMI data.