-------- Original-Nachricht --------
> Datum: Fri, 31 Jul 2009 14:11:38 -0600
> Von: Sebastian Kuzminsky <s...@highlab.com>
> An: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Betreff: Re: [Emc-users] Mesa 7i33 encoder inputs and up/down counter mode

> Gerhard Pircher wrote:
> > I'm using the Mesa 7i33 card to interface three RS-422 linear encoders
> > to EMC2. Now I would like to use the fourth input for the spindle speed
> > sensor, which delivers a 12V pulse and direction signal. But I wonder
> > which input of the 7i33 card should be connected to the pulse resp.
> > direction signal (if possible at all, but the Hostmot2 driver allows
> > to run encoders in counter mode).
> 
> The hostmot2 firmware currently supports Quadrature and Up/Down mode, 
> but not Step/Dir, unfortunately.
Silly me! I thought Up/Down and Step/Dir is the same...

> If your spindle is not reversible you could connect the step line to 
> either Up or Down, and run it that way.
Well, it is reversible. Maybe I should build a simple step/dir to
quadrature converter. That shouldn't be too hard.

Thanks for enlightening me!

Gerhard

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