Hi Kirk, im interested in modbus control, in the past week i was working on controlling some delta vfd and servo drives (only non-rt processes like on/off, rpm set, reverse, warnings, alarm clear, status), do it with an usb/rs485 adapter from ebay (very cheap), and using mb2hal for interfacing with LCNC (have problems with the vdf as it is the cheap of the line and dont accept modbus fnct16 only fnct6). Some examples with mb2hal control an arduino mega, as a modbus I/O control.
Im interested, what is your intention with the AVRs adaptor? about the lcnc side of things It could be done with classicladder but editor window has to be open for modbus to work. regards Rick 2013/10/3 Kirk Wallace <kwall...@wallacecompany.com>: > I'm thinking about completing some work I did with AVRs and Modbus by > making an adapter that has a Modbus port for a PC connection, with > digital and analog IO for VFD control. This could allow one to add > Modbus control to a VFD that normally only has keypad or button and > potentiometer control. If there is any demand for such a thing, I could > have some boards made, otherwise I'll just hack together a few for my > needs. Another thought, there are cheap VFDs with Modbus that could be > had for not much more than the adapter would cost. Any thoughts? > -- > Kirk Wallace > http://www.wallacecompany.com/machine_shop/ > http://www.wallacecompany.com/E45/ > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
