On Fri, 20 May 2011, Dave wrote: > Date: Fri, 20 May 2011 12:40:10 -0400 > From: Dave <e...@dc9.tzo.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: emc-users@lists.sourceforge.net > Subject: [Emc-users] Hydraulic Position control with EMC2 > > > Does anyone have any experience in controlling servo grade hydraulic > proportional valves with EMC2 for use in controlling a number of > hydraulic cylinders? > > Does anyone know of a way to interface an SSI encoder into EMC2?
The HostMot2 firmware supports SSI but there is no driver support (a single axis could be tested with the raw-read, raw-write however) Driver support should be pretty easy since the firmware just needs bit rate and frame length setup, and a single write to start, then wait to read a 32 register of the returned data. Physically SSI (and the related BISS) needs a differential output and a differential input per channel (just like a full duplex serial link), so any of our RS-422 daughter cards would do (7I34, 7I44, 7I47, 7I52, 7I52S) I am also adding BISS support to the firmware for more modern absolute encoders, BISS will add automatic cable length compensation so high (10M bit) clock rates are possible. > > I need to retrofit a large hydraulically controlled machine and the control > has to support Gcode and be flexible. > > Regards, > > Dave > > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
