Yes openPowerlink might be a really good choice. I implemented CANopen over UDP for configuration a few weeks ago and openPowerlink is adapted from CANopen.
The SDO communication from CANopen work really well for configuration and I guess it should also work well for between machine communication. SDO communication is rather simple to implement. > nothing missed ... only not know the STMBL project .... it seems quite > simple obtain a calculated angle of joint for send the data to my program > for 18 point delta calibration, so I find these project real interesting. > Apart > from that, I'm investigating the possibility of having open industrial > buses with high transmission capacity, to connect multiple Lcnc machines > together but also other industrial devices. OpenPowerlink & openSafety > seems quite good (not test in these time openlink realtime application ... > nex week I think) ... but I'll be happy to try other ways. In addition to > all the info I'm getting useful. > > Thank you all. > > bkt > > 2017-06-01 1:44 GMT+02:00 Chris Albertson <albertson.ch...@gmail.com>: > > > > But the goal is to find the best industrial bus for communication > > > between devices and open source ... openpowerlink seems quite open, > > > master and slave side > > > (ethercat for example in > > > > > > I must have missed some of the requirements. But from the above Ethernet > > seem like an obvious solution. It can push 1Gbit/second. Latency can be > > an issue if you use TCP/IP over Ethernet but one can just use UDP/IP or > > even Ethernet frames. And you can request users to use a dedicated > > network. UDP over a dedicated Gigabit network has just nanoseconds of > > latency.. Basically the bit rate times the length of the datagram. > > People have beaten this be packing the most time sensitive data in there > > front of the packet. > > > > If you are taking about transferring data in a machine shop one other thing > > is important and Ethernet does this too -- Galvanic isolation. Ethernet > > uses transformers on each end of the line and therefore has very good > > common mode rejection. But not trying the grounds together is a big > > advantage in an industrial setting. > > -- > > > > Chris Albertson > > Redondo Beach, California > > ------------------------------------------------------------ > > ------------------ > > 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
