My VFD has an RS-485 serial port where the control panel plugs in. Apparently you can mount the panel remotely or connect the port to some other Modbus host. I will be using the VFD for spindle control which I am guessing is in userspace? The approved connection method of using the digital and analog inputs should work just fine, but I thought if Modbus were available, that would be even better. I am a little concerned about electrical noise with routing the 0 to 10 V speed signal across the width of the lathe, but I shouldn't try to fix what isn't broken yet.
Kirk Wallace ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ On Tue, 2007-07-31 at 18:45 -0400, Stephen Wille Padnos wrote: > Well, yes and no :) > > Modbus has been discussed, and I think Matt Shaver did some work on > getting a VFD to work with EMC2. I'll be doing something similar to > talk to a PLC in the next month or so. I'm not sure that I'll be able > to make the driver work in realtime though - it may end up being > userspace. I think I'll be using a serial port, but if I end up needing > ethernet, it'll almost certainly be userspace. This driver work won't > be specifically useful for the EMC crowd, but it should be able to > provide a basis for something that is. > > Is your VFD serial, ethernet, or something else? > > - Steve > > Kirk Wallace wrote: > > >I just got a VFD with a Modbus port. Is there a plan on getting EMC to > >use Modbus? Thanks. > > > >Kirk Wallace > > > > > > > ------------------------------------------------------------------------- > 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 > ------------------------------------------------------------------------- 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
