Hello,
I am using an EPC to collect data and send it to InfluxDB. For that I am using this example in Node-Red: EdgeDevices/03_OPCUA_to_Influx.md at main · PLCnext/EdgeDevices · GitHub
It worked perfectly until yesterday, when I just changed the name of the project in the PLCnext Engineer and load it again. Since then, The OPC UA Nodes in Node-Red can´t connect to the server.
Under the OPC UA Browser I get a message saying „No Items“
Under the OPC UA Client I get a message like this "Invalid endpoint opt.tcp:/IP:4840 Error: Fail to connect to server opt.tcp:/IP:4840 to collect certificate server. Endpoint the conncetion may have been rejected by the server…
I have tried with other client (UA Expert) and works fine…
Do you have any suggestion on what has happened and how to solve this error?
Thanks in advance!
Asier
Hello Asier,
I assume you find a solution and closed the ticket yourself? - If you like, I would be very interested to know what helped and what fixed your error.
Just from my own experience, any error I encountered with rejected OPC UA certificates from the UA server could be solved very easily.
The problem was always caused due to differently configured times from UA server to UA client. Might be, when donwloading the Engineer project to the EPC, your host time-configuration was also donwloaded to your EPC.
If such an error is reported by the UA client node „…rejected by the server“, please check the configured time on the OPC UA server and compare that one to the time configuration of your EPC. The OPC UA protocoll can be very strict and any deviation within some minutes can cause this error.
Remember, the time configuration of the EPC can be done very easely, just connect to your Cockpit (default: X1 - 192.168.1.10/cockpit) and select „Extended configuration“. Configure the right time settings (which are then similar to your UA server) and restart your device.
Let me know if you are still facing the error.
Daniel