If you haven't already bought the pluto-p hardware, I recommend you consider the various interface cards from http://mesanet.com/ or http://pico-systems.com/motion.html instead -- they are better constructed and have a better record of hardware compatability.
With that said, the documentation http://www.linuxcnc.org/docview/html//hal_drivers.html#sec:pluto-servo talks about the limits of the quadrature interface of pluto-p: "The maximum useful quadrature rate is 8191 counts per emc2 servo cycle, or about 8MHz for EMC2's default 1ms servo rate." your requirement of 500000 pulses/second (500kHz) is well within the range the pluto-p can read and report to emc (8MHz). Jeff ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users