I have set up the Index signal from a parallel port input and it toggles correctly as seen in the Diagnostics window.

But no matter what , RPM values are never displayed in the Spindle Speed window. I even tried emulating with hot-key but although the input shoes the pulses, Mach3 seems to ignore it for reasons I can´t understand.

Hope someone can help me on this, I send attached the xml file.

Thanks.

 

Have you enabled the spindle with an M3 command? The speed is only  shown if the spindle has been turned on in Mach3.

Cheers,

Peter

Hello Peter.
Yes, I have also tried the M3 command both in MIDI and g-code file but still the same...