On 02/08/2016 12:54 PM, andy pugh wrote: > On 8 February 2016 at 20:34, Bertho Stultiens <ber...@vagrearg.org> wrote: >> But, I should not hijack the thread with information theory... > > In theory Modbus should be better, but I don't have any information > about the VFD interface. > > That's the version of information theory that matters to me here. >
I have several VFDs that do not have Modbus interfaces. One plan was to run Modbus to the VFD, but run it through an Arduino or AVR mounted to the front panel that would twiddle the VFD's control pins and run PWM for the analog speed pin. This is one of many things I haven't gotten around to finishing. (Bottom of page here: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?AVR has it been five years already?) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
