Thanks Hood, I was able to make it swap between MPG & Keyboard jog as you described, however it only works with an input from pins 10-13, active low. It says that you can not use pins 2-9 on the input screen and this appears to be the case, even though I"m using the 2nd parallel port with pins 2-9 as inputs enabled. It accepts these pins for the MPGs but not for anything else. I need 4 inputs for the jog ( feed ) directions, 1 to toggle the MPG/jog function, and 1 to make it rapid traverse (if I can find out how).
Thanks,
Glen.