Hello,
I am using Visual Components Premium 4.4
I was trying to establish a connection in between VC’s OPC UA and CODESYS. I was following this video : Connect a Remote OPC UA Server - YouTube
But the connection initiation is giving error like the picture given below:
Discovery server: opc.tcp://localhost:4840
Server address: opc.tcp://192.168.0.15:4840
My IPv4 address: 192.168.0.15
Anyone help me out with that ? What could be the possible reason for that ?
Thanks in Advance.
Maybe your OPC UA server is configured to require user authentication like username and password, but you haven’t selected that in the connection settings.
every time I start the plc project this user name and password is required. Did you mean this one also need to be in the connection setting of Visual component ?
I don’t know, you’ll need to read codesys documentation to figure out how user access and credentials are configured.
Solved: disabling user authentication established the connection properly!
Can you explain me how you did to solve the problem because I am having the same problem?
Hello,
If you are trying to establish the connection without user authentication through OPC plug-in then you have to disable the login authentication in Codesys as well, to do that: try the instruction there Codesys#Disable the User Password |
When I want to change the communication policy for desactivate the login authentication I have this error message.
However my gateway is configured with the localhost like the tutorial Connect a Remote OPC UA Server.
Just a fyi if someone else stumbles upon this issue or topic.
