Neither DROs nor motors move.
eStop turns the indicator in the Darwin driver and generates the error message in Mach4 history as I showed in a previous port.
Then I did the following for pins using the Darwin driver config. First, with the machine axes centered I see pins 11-15 on/green
I then stopped M4, started M3, jogged X axis until home switch was activated. Then stopped M3, restarted M4, and see that pin 11 is not off/red. This is the proper pin, configured active low for the X axis home.