Hi all,
I encountered a similar problem. I wanted to connect to an OPCUA server that was running on a different machine. Connection via different OPCUA client like Matrikon or UA Expert or something like this were no problem, but with my Matlab application no change.
The first thing is connection via opcua('opc.tcp://myIPadress:myPort') is not working. The first step is to change it in the following:
opcua( obj.Host,obj.Portnum)
The next issue is that when now browsing via opcuaserverinfo, the server cannot find any Endpoints. No Endpoints no connection. The reason seems that Matlabs Toolbox is currently not capable of resolve Hostname other than localhost, also IP adress not working.
The solution is go to C:\Windows\System32\drivers\etc
Open the hosts file with a text Editor and write your IP adress and then your Hostname in the file like this
myIPAdress MySuperServerHostname
Afterwards Matlab is directly able to make a connection, no restart needed.
Best regards,
Thomas
