Hello Community,
Our customer is struggling in performing OPC-UA communication between a CtrlX Core as client and a remote CtrlX Core as server. 'Remote' means server can be accessed on a different remote network by internet.
The use of UA Expert leads to a successful communication whereas unsuccessful with CtrlX Core Client.
Unfortunately there is no accurate info regarding this error code.
I also tried on my side with both 1.20 and 2.6.3 versions but unsuccessful as well.
However connection to remote Ip is successful:
Any hints from would be appreciable.
Hello @Nathanael ,
Have you trusted the certificate for the ctrlX CORE OPC UA Client on the ctrlX CORE hosting the OPC UA Server?
EX:
Hello,
OPC-Client Core is located in our customer office whereas OPC Server Core and 2 additional machines are located in a plant.
Today, these 2 addtional machines equipped with B&R PLC and OPC Servers are properly operating with OPC UA communication (I mean with the OPC Client Core).
Here is the explanation you asked for the Core application:
Hello,
It's still not 100% clear for me what is the reason for the problem, so I will try to summarise all the information I have right now. Please correct me if someting is wrong:
- The ctrlX CORE X3 is in the office is acting as OPC UA server
- The ctrlX CORE X7 is located in the plant and working as a OPC UA client.
- The OPC UA client (X7) can't connect to the OPC UA server (X3).
- The OPC UA client (X7) can connect to the OPC UA server of two B&R machines inside the plant.
- You can ping the X3 (office) from the X7 (plant) by using the hostname.
- You can connect to OPC UA server of the X3 (office) with the UA-Expert from a PC within the office network
So the setting should look like this:
I guess a ping from the X3 (office) to the X7 (plant) would also work.
We think that the OpenSecureConnection fails because of firewall settings between the two networks.
Your screenshot of the installed apps showed that the OPC UA server app is installed on the X7. Can you please try to connect OPC UA server of the X7 (plant) with the UA Expert (PC in the office)? Does it work and if not, which error message do you get inside the UA Expert? Please create a WireShark trace of this connection attempt, so we can see more details.
Hello,
Basically, I also misunderstood a bit our customer architecture and I messed up a bit the case... sorry 😔
Here is the current architecture:
So, OPC UA communication operates properly between the office and the 2 plants with B&R PLC as Clients.
But not operating between the office and the plant with CtrlX Core as Client.
After a discussion with customer, he's going on site next week and will test with UA Expert as well from the plant where the CtrlX Core (Client OPC UA) is located, in order to check if this is related to plant IT issues or CtrlX Core issues with OPC-UA.
Then, I will inform you about the status.
Many thanks for your support and the time you spend 😉