2009/6/11 <lesw...@gmail.com>: > > 1. What board is easiest to configure fort this. I am leaning toward a > Pluto or a mesa 7i 33
Depending on how many signals you have you might not need any board at all, which at least simplifies the setup. You may be able to drive direct from the p-port. > 2. Will this work using the board to control a 0-10 volt control to the > 2250 on a pid loop it also has to have output for fwd rev and enable You can certainly do that with a naked parallel port. How well it will work I am not sure. You would need a small interface to convert PWM to analogue voltage but that is not especially difficult. I have a circuit diagram if it helps, I use a DC-DC convertor to create a floating voltage reference, an opto-isolator to protect the P-Port and a current reference to keep the output independent of P-Port voltage and opto-efficiency concerns. Total component cost is about $15, most of that being the DC-DC convertor which you might not need. (I needed it because my motor controller requires the control voltage to be applied between a pin in the PCB and the +100V field coil output, so needed a truly floating voltage source) For reference, it is one of these http://www.kbelectronics.com/data_sheets/kbic.pdf -- atp ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
