Hello PLCnext community, I’ve recently installed NodeRed in my AXC F 2152 controller with the help of the Balena container. In my project, I’m trying to read in NodeRed several variables published by the controller via OPC UA. I’ve been able to read the variables with the UA Expert tool but when deploying the NodeRed flow, the OPC UA port of the controller seems to be inaccesible. My Laptop is located in the 192.168.0.20 adress while the PLCnext is in the 192.168.0.72. Together with this post I upload pictures of the NodeRed flow, where I’m using the node-red-contrib-opcua palette, and the OPC UA configuration in the project. Thanks in advance, Kind regards Guzmán
Hi Guzman, unfortunately are nether me or the others from the PLCnext Support Team real Node.red experts. But I’ve found this makers blog entry, which might help you. Otherwise I’m sure that some others from the community could share their Nore.red knowledge. BR, Frank
Hello Frank, Thank you very much for your response. I will try the tips given in the Maker’s blog, it surely looks as a viable solution. Thanks again, Regards Guzmán
Hello, I think you are missing a : in your URL,. The correct URL is opc.tcp://192.168.0.72:4840. In your screenshot it looks like the first : is missing.
Hello all, I’ve made it work by fixing some mistakes. The first of these was the DNS name/IP address setting on the OPC UA settings of the PLCnext, this field was set with the DNS name and so the PLCnext was listening from another direction different to what I thought. Second of all, I changed the parameters of the OPC UA Client node to activate the SHA256 security and sing into the controller, you can have a look at the picture. Thank you all for your help, I hope this is useful for someone else. Regards Guzmán
