On 1 Jan 2008 at 18:13, [EMAIL PROTECTED] wrote: > > On 31 Dec 2007 at 19:39, [EMAIL PROTECTED] > > wrote: > > > > Kirk, > > > > On the other hand I could just use a $99 plc with an $115 4 channel > > 12 bit analog card that takes 0-10v. > > I believe EMC doesn't talk to PLC's yet, but appears Steve has just > written a Modbus driver so that may change soon.
I was just planning on using the outputs from the PLC. I can program the PLC to convert the ADC value to BCD no problem. It does use a lot of I/O though... > > > Could you do something like BCD into EMC from the plc? > > If your PLC can output BCD on digital output pins, then yes. The > turret on my lathe outputs the tool position in BCD on four pins. I > used the weighted sum component, wsum, to convert it to an integer. > See the Turret section of this file: > > http://www.wallacecompany.com/cnc_lathe/HNC/emc2/configs/hnc_io-3a.hal > > > Looking at Dallur's chart he is just sending Move Z up or down from > > his THC. > > > > I'd still like to display the analog voltage for my viewing > > pleasure... > > > > Just thinking out loud... Thanks for the input John ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
