> I've been working on an ethernet controlled servo drive for some time now. > This drive uses RTNET and Xenomai-3.0.3 for the real-time communication. > The current control loop is on the drive, but the position control loop > is on the PC.
I also have ethernet servo drives. > ... > Since the drives have to be synchronised to the PC it is important to > reduce the jitter to the drives. Well actually not. A full period of jitter then using average time over 100 samples is 1% or about if not exact 1/n=(100/n)% of jitter. I have done this for stepper and have also written about how to do it with decimal point to reduce jitter then running servo loop at similar rate as stepper pulses. What protocol do you use for Ethernet? Regards Nicklas Karlsson ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
