Schaublin 125-CNC retrofit.

Thanks guys. Excellent feedback.

800w 24VDC? CNC welder?
Mark

RotarySMP wrote: 800w 24VDC? CNC welder?

I might have misremembered. It might be only 500W (24.7V @ 20A). In any case, a bit of a bargain at £20 brand-new in box.
uk.rs-online.com/web/p/din-rail-power-supplies/4596533/

Hell yeah. As space is not an issue on that build, it is an excellent deal.

If so then it should be possible to use the modbus MB2.HAL component to address the separate drives and output velocity commands to them.

As far as I am aware there have been a few stabs at getting Modbus working in real time space using mesa cards but I don't think anything usable as come out of any of those. In my opinion Modbus is fine for configuration only.
There are some videos out there that seem to be controlling the drives over modbus, altough not with Lcnc, but I'm sceptical.
If I wanted a serial interface to control my drives with Lcnc I would choose EtherCAT (or maybe SSCNET if I already had the drives and motors). That is what has been shown to work.

Thanks for your inputs guys.This really helps. Analog control it will be.
Mark

I got scammed by far east, ordered drivers with analog but got step/dir so I have to live with it, works.

Same brand...

So go with analog Mark.