I have an old Kuhnke 657 PLC in a machine. It has an HMI which we would like to replace with a C-More. Does anyone know what comm protocol this PLC uses?
I emailed Kuhnke asking about obtaining the software for this. The only answer I got was "Sorry this product is obsolete. Please GOOGLE KUHNKE 657". Really? How do they think I got their contact information?
Anyway, does anyone here know how I might get the software?