[adam_m]

I'm just now getting around to wiring up Mach3 my G540 and my Hyuanyang VFD. Currently, I'm manually turning on and off the spindle via the VFD but I'm finding that to be inconvenient due to its location and if I can do it via software then that makes total sense.

Could someone explain how the control process works... mentally I'd like to understand what is taking place before I try and wire it up.

I don't understand what the modbus is and how its used in the connectivity and why its needed?? I'm also seeing a plug in that is being used is this still needed..? https://www.machsupport.com/forum/in...c,22806.0.html

I also found a post by "Al_the_Man" which seems simple enough from a connectivity perspective, is this still good?



Thanks for any insight.

Adam,