On Sun, Feb 6, 2011 at 7:42 PM, Viesturs Lācis <viesturs.la...@gmail.com>wrote:
> 2011/2/6 Mark Wendt (Contractor) <mark.we...@nrl.navy.mil>: > > On 2/6/2011 1:47 AM, Kim Kirwan wrote: > > > > Could be our biggest problem is going to be the slave port. Now, we're > > using a relatively simple and cheap parallel port breakout board to the > > drivers. How do we inexpensively make a slave card work RT at the > > driver end of the link? It needs to be able to accept the signals from > > the master, then convert those signals to step/dir, or servo loops, and > > in the case of servo loops, be able to communicate the loop back to the > > controller. > > Yupp, the slave device needs something special. Like this: > http://www.xilinx.com/products/ipcenter/Beckhoff-ET1815.htm > http://www.beckhoff.com/english/ethercat/et1815_et1816.htm > > The second page mentions licences and royalties, but, as one professor > once told me: "you don't get, if you don't ask". > So I see only one way to find out, if it is possible to manufacture > ethercat slave devices for a reasonable price - ask them. > Is there a chance that someone from electronics field contact them on > this matter? > > So, who would be willing to ask MESA for their upcoming 7I62 EtherCAT anything I/O card? http://www.mail-archive.com/emc-users@lists.sourceforge.net/msg23101.html I also agree that EtherCAT would be an ideal solution for EMC2 as long as major software and hardware issues for 7I62 were resolved and verified. -Yishin ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
