"Peter Tolgyesi rpted that he tried the cable with the FX0 and it didn't work with Melsec Medoc FX/WIN 3.2. He shorted 2-6 and 7-8 on PC side, and now it works. He has a jumper, not a resistor (removed the resistor to see if that's why it didn't want to communicate)." I am running Melsec FX/GX/WIN 3.0 to FXo14. Tried all configs of sergi's and others--Comm Error!