Hi,
The software looks great. I haven't been able to use it yet, - I need a cable to connect my Pylontechs (C models) to my PC. Despite several useful posts on the subject, I wasn't too clear, and I don't have RS232 anywhere, but then I found this youtube video which may help others in the same boat. https://www.youtube.com/watch?v=F-sj5_fNzKA
RS232 involved, just adapt a standard ethernet cable and buy a usb/rj45 converter. Very clear annotations
The same guy has done this video https://www.youtube.com/watch?v=JggcIt0v7jw for older Pylontechs, adapting an rj10/11 cable.