Art gave us another toy. He has added a G100 I/O only plug-in in the downloads section. 

http://www.artsoftcontrols.com/artsoft/plugin.htm

It is no good for motion, it is for I/O only. I will either add a section to the Set-up guide or make a guide just for it ASAP. The only limitations I know of at this time are,

1. No time critical signals,...probe, home , limits.
2. Enocders are a bit slow, about 4Hz.
3. The step and direction pins are not usable at all.

You must have the firmware installed as shown in the Set-Up Guide. If you follow the Set-Up Guide, you should be able to get it all working, it is very much the same. The biggest difference is this, all pins on the G100 are set to port 3 for the I/O only plug-in.

I wish I could give more detail, but I"ll have to play with it a little myself first. I have used some of the inputs and outputs, that is all as of now though.

Brett