Hi Ted. I think you'll want to use the encoder from 2.2 (or CVS, if you feel like compiling).
It uses a better algorithm to determine velocity, so it's very stable and works well with low pulse-rate sensors. We're hoping to release 2.2 on the next few months. If you'd like to try it earlier, you'll need to compile your own :) - Steve Ted Hyde wrote: > I’m looking to implement a measured RPM display via a single PPR > trigger on my spindle. Let’s say it’s on parport.0.pin-13-in. I’ve > used some of the web-mentioned articles to get the pyVCP display bar > in Axis (that works ok), but it’s a matter of actually capturing the > frequency from the hardware pin and converting it to a useable float. > The nist-lathe example appears to be using the motion module, and > trying to push the hardware bit into that counter example has failed > so far. I’m reading that EMC 2.1 trunk is depreciating the counter > module and replacing it with enhanced encoder module, but I’ve seen no > updated docs on it yet. > > My purpose is just to view the RPM on screen, as my mill spindle is > manual and not commanded by EMC (that will come later). I’m not > looking for closed loop here, just a gauge of RPM. > > Thanks, > > Ted. > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
