Kirk Wallace wrote: > On Fri, 2007-10-26 at 21:04 -0400, Stephen Wille Padnos wrote: > >>Jon Elson wrote: >> >> >>>Kirk Wallace wrote: >>> >>> >>> >>>>There is some discussion on another thread about using Ethernet for EMC >>>>I/O. I can see that there is the appeal of plentiful and cheap hardware > > > ... snip > > >>>keep excess net traffic off the segment that has the real-time >>>trafic going on.) >>> >>> >> >>An ethernet segment must be either RT or not RT. If you connect a >>non-RTnet device to a hub/switch with RT devices on it, all bets are >>off. > > > So, does RTnet use any of the standard Ethernet hardware? If not, do PCI > card routers allow you low enough access to the firmware to reconfigure > it for RTnet? > Yes, it uses ALL standard ethernet hardware. By that I mean it uses compatible ethernet ports on the PC motherboard or plug in cards. They currently list support of 12 families of ethernet chips.
I gather now that you have to use a Linux PC with 2 ethernet ports as a router for the "private" rt network, but all hardware should be off the shelf. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
