I know this thread is a little old, but was hoping not to start a new one for one quick question. I was told by someone (who I hope simply doesn't know what he's talking about) that the M560 cannot use G code programs. I realize Okuma has always had a great conversational system, but hard for me to believe that you can't program off-line and download G code. Should be easy question for someone in the know.
You can absolutely use G-code. Even their version of the conversational code still outputs into G-code anyway.