On Sunday 07 June 2015 07:13:36 Philipp Burch wrote: > Hi Alexander! > > On 07.06.2015 12:47, Alexander Rössler wrote: > > CANopen might be what you are searching for. > > Thanks for the hint, I'll have a look. From what I've seen so far, > CAN(open) has a bus topology (parallel connections of all devices), > which is not exactly what I'm looking for, but maybe this does not > make too much of a difference. > > Regards, > Philipp
I looked at a page fron NI, looks like tolerable latencies could be obtained, and at 1Mbit/sec, I'd say fast enough. But whats the cost of the net on a per port basis? I didn't get that far as I was forced back to the heating pad. To me, its a non-starter if the card needs local power, and costs more than a DM542 driver. And I did find some prices, but they started at about $275 and went up another $200 for the more capable ones. That makes PCW's prices pretty appetizing. For someone using steppers, the 5i25 seems like a heck of a deal. I have an elderly HP desktop tower with a 1Ghz athlon in it, but will have to see what sort of bus it has & if I can run this mill with that card in it. If I can, that would seem to solve the lack of any more new D525MW motherboards. Not ideal of course as it doesn't have enough ram at 320megs, but I started out doing SW stepping on a motherboard with a 1.6Ghz athlon on it. I originally set it up in the garage with the idea of listening to Pandora on it, but it wasn't even fast enough for that. So I'll put the 5i25 I put in the toy mills atom box but haven't configured it yet, in this curb pickup, if the card is bus compatible. I've already used mesaflash to put the same firmware that the lathes card has in it. With both parports in use, thats 8 axis's worth of drives & 2 encoder inputs. Seems like I ought to be able to make this Grizzly bear dance my favorite dance steps. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
