>Chinas is very large and they export a lot of electronic products. It is however a rather new phenomen, Shenzen was the first exprimental economic zone opened in 1980, the area is a little bit larger than the "county" or >similar there I grow up in countryside and in 1980 I think population was similar around 30 000 but right now there is more than 10 million people. The population growth in the pearl river delta have been insane and >economy for Guangdong province have grown more than 100 times.
for work buy device in china every mount from 3 year ... so I have my little opinion ... You are in right about china ... but actually the producer is focused on ethercat (due to state research grants and because ethercat is other standards fieldbus). So that the future of powerlink is much more connected to Europe and to USA than to china. >Requirement on performance is not very high. It is almost always need for between three and six axis which will be around 6*32bits = 192 bits of payload each period, IO may be slower. A more reasonable amount is >8*64bits @ 1kHz = 512bit @ 1kHz = 512kbit/s of payload at 1kHz. All counted full duplex. > >With control loop at linuxcnc computer there and one driver card for each motor there would however be a need in the range of 2*3*1kHz to 2*8*1kHz messages per second. Or (1+3)*1kHz to (1+8)*1kHz if multi casting is >used. ok ... nice ... but I was referring to the fact that it needs an isolated rt thread because powerlink works fine so that you will need to observe cpu behavior first (my favorite is the I3 ... it is true that for a few moments they are from 3.6Ghz.) to make a real powerlink-Lcnc robot. regards bkt 2017-09-12 18:31 GMT+02:00 Nicklas Karlsson <[email protected]>: > > Yes in china multiple manufactorer (drive) has powerlink ... but in > Europe > > the thing is different, ... > > Chinas is very large and they export a lot of electronic products. It is > however a rather new phenomen, Shenzen was the first exprimental economic > zone opened in 1980, the area is a little bit larger than the "county" or > similar there I grow up in countryside and in 1980 I think population was > similar around 30 000 but right now there is more than 10 million people. > The population growth in the pearl river delta have been insane and economy > for Guangdong province have grown more than 100 times. > > > said this last month I wanted to try powerlink and Lcnc together to be > able > > to observe the performance of a system with both running instances. ... > > Requirement on performance is not very high. It is almost always need for > between three and six axis which will be around 6*32bits = 192 bits of > payload each period, IO may be slower. A more reasonable amount is 8*64bits > @ 1kHz = 512bit @ 1kHz = 512kbit/s of payload at 1kHz. All counted full > duplex. > > With control loop at linuxcnc computer there and one driver card for each > motor there would however be a need in the range of 2*3*1kHz to 2*8*1kHz > messages per second. Or (1+3)*1kHz to (1+8)*1kHz if multi casting is used. > > > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
