I'm having a problem getting programs into my Mitsubishi M64 controller with RS232. I am able to send programs from the CNC to the PC fine, but when I try to send programs from the PC to the CNC I get an error E60 IOP ERROR -20. The Mitsubishi manual says this is a (framing and H/W error).
I tried this with my original cable which is around 50' long and the transfer from CNC to PC works fine. I made a new cable about 3' long and the same thing happens.
The base parameters let you input a "port number". I can choose any number as long as that number is '2'.
Any ideas? There are a lot of parameters that can be set. I set the parameters the same for both the DATA OUT and DATA IN. I would assume that if one direction works the parameters should be correct.
I am using a USB to serial converter. I am using OneCNC link for the communication.
Is there some kind of a board where the rs232 input meets the NC unit that can go bad. Looking at the diagram shows only a serial cable connecting to the board that the NC unit plugs into. There does not appea to be any easily replaceable components.
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