OPC UA Client Driver

The OPC UA Client Driver page appears under Plant SCADA in Configurator, when the Plant SCADA OPCUA driver is installed. This is one of the communication drivers that is installed with Plant SCADA by default (see Install Communication Drivers).

Note: The Configurator's OPC UA Client Driver page is used to manage secure device communications via an external OPC UA server. It is not related to the Plant SCADA OPC UA Server, which delivers runtime data to third-party OPC UA clients.

Plant SCADA's OPCUA driver supports the use of user credentials when connecting to a device. It allows you to establish a secure connection between the driver and an external OPC UA server using X509 client and server certificates. The driver needs access to the server certificate and the server needs access to the driver's client certificate.

To support this, the OPC UA Client Driver page under Plant SCADA in Configurator allows you to:

• Create security settings.

• Select the client certificate from the Windows® certificate store.

• Import the client certificate from a file into the Windows certificate store.

• Issue a Plant SCADA OPC UA client certificate, store it in the Windows certificate store and export it to a file.

• Import the server certificate from the file into the Windows certificate store.

• Test connection to the OPC UA server.

For further instructions, see the topic Security Configuration in the OPCUA driver documentation. You can access the driver documentation via the Driver Reference Help toolbar button in Plant SCADA Studio's Topology | I/O Devices view.