Hello I have the same problem, I have to read data from a B&R server in OPC UA with a Siemens PLC, I can find the variables transmitted by the B&R via the online interface on tia portal but my opc ua reading block can not read the values of variables. Do you have a solution?
Are you getting any sort of error information? It’s hard to make suggestions without knowing more about what’s happening. It sounds like you’re able to read the data with UA Expert, so something probably needs to be changed in the Siemens software but having never used it I couldn’t tell you what that may be.
Is your communication in one direction only (reading the nodes from the B&R PLC with the Siemens PLC)? If you have bidirectional communication, it would be interesting to know if that communication is working the other way or not.
With UA Expert I can connect, but not with OPC Scout V10. We only read variables. With a Siemens server, the PLC is able to read data. We’ve configured the client in exactly the same way, but when the server is a b&r we can’t read the data. Our reading block tries to connect, but displays a status telling us that it can’t connect.
Is it possible to make a Wireshark trace of the startup of this OPC UA communication and provide in this post?
What OPC UA client function blocks are used and with what settings?
Finally, the problem came from the fact that we were using routers, so we had to copy the url address in the DB configuration into the server uri variable and restart the PLC.Finally, the problem came from the fact that we were using routers, so we had to copy the url address in the DB configuration into the server uri variable and restart the PLC.