I use the suggestion and indication from linuxcnc forum: https://forum.linuxcnc.org/24-hal-components/22346-ethercat-hal-driver
about SOEM, The basic implement is not realtime .... so is ok for user command, not so for drive command. Any how my decision is not utilize ethernet bus for drive position/velocity/torque command. Mesa analogue signal and feedback encoder on mesa card are too easy and precise signals to use to go for alternative methods that usually do not give such good performances. Keep in mind that realtime on ethercat is not a universal value ... commercially there are devices that go under 1 ms but others that arrive up to 10-20ms .... for example kunbus has made devices on pi3 with ethercat and more, but with a realtime of 5ms. I have made the opinion that bus-rt on ethernet are very nice, but they will really be useful only in some have. in the meantime it is best to play on to be ready and wait. If you would use it for data comm between some device or for connect some device without problem of 5-10ms response time all work fine. I could not recommend any ethercat for professional use as a result of my experiences. But I'm sure many others have taken advantage of it. Last but no least, there is also the security issue. Here in Europe ethernet-ip and secure signals do not agree much for example. In addition, many drive manufacturers do not have safety over ethercat even if they have the bus. regards bkt 2017-10-26 18:19 GMT+02:00 Nicklas Karlsson <nicklas.karlsso...@gmail.com>: > On Thu, 26 Oct 2017 13:36:26 +0200 > theman whosoldtheworld <bleachk...@gmail.com> wrote: > > > I'm working with it now using linuxcnc implementation ... and in past > with > > backoff device. ... > > I just started to look a day or two ago, which Ethercat implementation? > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
