Thank you jazz, initially I thought of something similar with no outputs dedicated for this, like the HWenable from CSMIO also powers the green led while the E-Stop when goes low red light comes up using relay or something. but then I found a link in CSMIO website which someone put up to show an example of using the outputs to show the states as they are in mach3 instead so I thought of doing it like that, but your way I guess is a good compromise! screw the yellow light lol ( it will be the NC one) and red and green will come from mach3 based on the light state there.

For reference: http://www.cs-lab.eu/en/artykul-131-...nal_Tower.html