Hi people, please excuse me if this question has been asked and answered before but, I have a mitz mill with a meldas 520 control very old. I am having problems getting the control and pc to communicate. I spoke with the mitz tech he sent me a 15 pg procedure on how to set it up but didnt work. I would really like to dnc. I am using mcx3 communications as my way of sending. I keep getting a e04 error message at the control/not ready or broken wire something like that. I dont think it is a broken wire I think the controller is not set proper. Thanks in advance.