why not powerlink ie? no need special chip, no need special hardware ... but it run on every device ... so you can must to limit it to a single core realtime working ... so other core is free for Lcnc ... not tested yet with Lcnc istances so I'm not able to report latency performance with Lcnc istance + powerlink ie istances ... its only limit is that there are few device manufacturers who use it, we see it will happen next year as it has now become an ABB protocol.
rebards bkt 2017-09-10 11:10 GMT+02:00 Nicklas Karlsson <nicklas.karlsso...@gmail.com>: > > In practice if you have ever had to set up a daisy chain topology network > > you will not like it. One problem is that one connector or device > failure > > takes down the entire network. The new switch based Ethernet is much > > more reliable especially now with self test and green LED built into > every > > end or every cable. > > Plan was to connect like shift register which should be very similar to > Ethercat. What's worse is micro controller have FIFO so it is not possible > to feed thru with good performance since virtual shift register length will > be long in each device. Green LED should be possible also with daisy chain > but there is a drawback all devices must work. > > Single chip will of course always work. For buses Ethercat for high > bandwidth and CANopen for low bandwidth seems to be the choice. I think > there is nothing wrong with Sercos but it seems to be more expensive for > less performance. > > > 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-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
