Wiring Diagram check

[JAZZCNC]

I was not intending to use panel control, but speed and direction control from the CSMIO-IP-S.

Eurikain was talking about using the control panel but in anycase I don't see the point in what you suggest other than to disable ON?OFF. The Software allows you to manualy control spindle ON/OFF rather than G-code. The way you Suggest would work but is open to Error from forgetting to switch back and not turn spindle on before code starts and I don't care how fast you think you are there will be times when you do for get and can't reach it. Just like you can't reach O-shite button fast enough before it snaps cutter.!!
If you do want an actual Manual ON/OFF switch then better to use an Input and set up OEM trigger in Mach to turn Spindle ON/OFF.
If for Safety reasons then would only do this if it was tied to Reset so Control software can't start.

My understanding was that DCM connected to FOR by a relay would cause the VFD to spin the motor according to the (0-10v) voltage applied to V1 and that opening the DCM, FOR connection would allow it to coast to a stop. All the setup articles I have seen are just how to connect R,S,T to single phase input and UVW to the motor, presumably then using the front panel to control ON/OFF and speed. I can't find any proper explanantion of the way RST (reset) works and what exactly it does.

Your understanding is correct.
RST works just like Pressing STOP. Each of the VFD Inputs are programmable and can be set to do various controls and RST is set by default to same as pressing STOP button on control panel. When you Connect DCM to RST it Stops the VFD. Putting this thru E-stop contact will disable the VFD

I would love someone to provide a simple wiring diagram with on one side the BOB's VFD control terminal and on the other side the VFD control interface and tell me how to wire the together..

I'm not trawling back thru your posts to find out what BOB etc you have but if you post details again then I'll draw something for you.