5i25/7i76 Modbus to Hitachi WJ200

Last on my list of things is to hook up my VFD. It's a HItachi WJ200. Wanted to try and use modbus with it. Can anyone help me out with this or should I just use the inputs on the VFD and the spindle control on the Mesa. Everything I've seen looks real complicated and I'm definitely not a programming genius.

Actually gonna put this on the back burner for now and hook it up to the Mesa. Question though, how do you wire the mesa to a 3 wire setup? Spindle start, spindle stop and for/rev. I'm guessing you hook up only one of the direction wires and set it up in hal or something right?

The VFD has start/stop and f/r or it has f/r. I guess it has 4 but it doesn't look like you can wire it that way.

I justupdated to 2.64 last night and it shows in the changelog that there is a driver for the WJ200 now. Where do I find this and what does it do? Is it for modbus? That would make my life a lot easier.