Hello, I'm considering converting a machine currently running Wincnc over to Linuxcnc. The Wincnc control has a pci card with two 37pin connectors, that are connected to a proprietary breakout board. (40 GPIO-in, 20GPIO-out+6step/dir pairs, and 1 analog-out) Most of the IO on those connectors are simply TTL 5v, except for 3 pins that are used for the analog output of a digital pot.
This machine has 7 joints, (one slaved) and 6 axis. The Wincnc control is limited to only 6 axis of control, so the slaved axis is just sharing the pulse signal, with a Rube Goldberg design of relays for squaring the gantry when homing the machine. The joints are Kollmorgen S200-VT-S servos, currently commanded in position mode with quadrature pulses. Then there are 4 VFDs controlled by some of the GPIO and the analog output. For GPIO there are 18 digital inputs used, and 10 digital outs. I don't want to reuse the existing strategy for controlling and homing the slaved axis, I want to do it right, so I will need 7 sets of quad commands (or analog if I go that route, but that would mean a lot more rewiring to add encoder feedback.) What is probably my best Mesa card options? At this point I am leaning toward a 7i76E + 7i78 Anyone see a better option? Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
