How to Connect Third-Party Clients
In this tutorial we will show how to use third party OPC-UA clients when connecting to our OPC UA server.
We use the OPC URL opc.tcp://localhost:4841 in the following tutorial. This URL is the one exported by the Demo Server.
You may connect to the OPC-UA Demo Server with any OPC-UA client. We are using the following clients in this tutorial:
UAExpert
After starting UAExpert, click on the plus icon button.
![../_images/uaexpert0.png](../_images/uaexpert0.png)
Double click on “Double click to Add Server” in the popup window.
![../_images/uaexpert1.png](../_images/uaexpert1.png)
Enter endpoint URL ‘opc.tcp://localhost:4841’ and click OK.
![../_images/uaexpert2.png](../_images/uaexpert2.png)
Expand the subtree under endpoint URL, select ‘None – None’ and click OK.
![../_images/uaexpert3.png](../_images/uaexpert3.png)
The left pane shows the OPC-UA server name. Connect to the OPC-UA server by clicking on the connect icon as shown in the following screenshot.
![../_images/uaexpert4.png](../_images/uaexpert4.png)
The address space is shown in the left pane after connecting. The right pane and the upper pane shows attributes of selected node.
![../_images/uaexpert5.png](../_images/uaexpert5.png)
ProSys OPCUA
Start the ProSys OPCUA client application. Enter Endpoint URL and click on the arrow icon.
![../_images/prosys1.png](../_images/prosys1.png)
The following screenshot show the popup that appears after clicking the arrow icon. Select security mode ‘None’ and security policy ‘None’. Click OK.
![../_images/prosys2.png](../_images/prosys2.png)
The address space is shown in the left pane after connecting. The middle pane shows attributes of selected node and the right pane shows references of selected node.
![../_images/prosys3.png](../_images/prosys3.png)
dataFEED OPCUA
Start the dataFEED OPCUA client
![../_images/datafeed1.png](../_images/datafeed1.png)
Double click to add session. Add the following Endpoint URL in the popup window: ‘opc.tcp://localhost:4841’ and click OK.
![../_images/datafeed2.png](../_images/datafeed2.png)
After connecting, the middle pane shows the Address Space tree and the left pane shows the attributes of the selected node.
![../_images/datafeed3.png](../_images/datafeed3.png)