There is nothing available in ordinary linuxcnc development tree?
On Fri, 27 Oct 2017 11:07:59 +0200 theman whosoldtheworld <bleachk...@gmail.com> wrote: > 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 ------------------------------------------------------------------------------ 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
