Ah ok, it said in the documentation that UDP wasn't captured but maybe I'm not using the settings on wireshark correctly. I can send to Eweb in UDP and TCP mode. Everything works, except that printer. I've still to try the printer on UDP.
"does not work" is not a really helping anyone.Looks like you're spot on, yet I can only connect to the printer in RAW mode from PuTTy, and using the PLC in TCP client mode does not work. Weird or what.
I am retired now, but I used to use an OPC server from Videojet called Clarinet, I gathered info from printers ( air, ink, jobs, production etc) and send info to them(jobs).
I do not know if they have a free testing version, but you can ask for it.
I also had to have another PC to design printing and troubleshooting printers.
This OPC server was installed on the same machine as our SCADA FTView SE Distributed was installed.