I have a g540 connected to a uc300eth-lpt5. E-Stop is connected to port 2 pin 15. Works fine in Mach 3 but does not work in UCCNC.

If I set the E-stop configuration to the actual port/pin with active low unchecked, just like mach 3 is configured, I cannot get uccnc to reset. If I move it to another pin or disable it altogether UCCNC works fine.

Any clues as to what is going on here?

Ben Gasser
Kansas City