There seems to be a connection problem. Mabe you need a password or security certificate to login to your server. Please turn of your firewall and turn off on your OPCUA server all security settings.

Hello Thomas。

I use GXWorks2 and MX OPC Server，I can change the opc status from GXWorks2，but w

hen I press Import Nodes nothing happened。I have shut down the fire wall。

Sometimes it takes long to import all OPCUA nodes. But I still see a connection error in the log.

Could you please try first to connect with OPCWatch (https://www.traeger.de/downloads/opc-ua-development-toolkit) because it uses the same technology. After you are able to successfully connect with OPCWatch (all Firewall and Security issues need to be solved) try to import only a few subnodes with Unity (select a Top-Node-ID in the Unity OPCUA properties).

Hello Thomas

I open the link，when I press Download it shows：

Forbidden

You don't have permission to access this resource.

I tried other links，it shows the same thing。Can you download it and send it to my Email？1372610017@qq.com

Thank you。