that maual is not the best for mach3 plugin also the port do not come up as named in purmotix it just has a list of about 70 ports,see the picture for a more mach3 biased manual help on ports and pinsClick image for larger version. 

Name:	Screenshot (22).png 
Views:	369 
Size:	641.5 KB 
ID:	27548

as jazz says above i did wire as pnp but turns out my proxy are npn so i guess would of worked, i think its a great product just needs more English support and clearer instructions for lower lever builders like myself