The cards use high-density logic circuitry for motion-control functions programmed in C/C ++ or Visual Basic language. The features include S-curve trapezoidal, velocity contouring, electronic gearing, and user-generated profile modes. The cards provide servoloop rates of up to 50- sec/axis, high-speed motion trace for servo-tuning diagnostics (with 40-kbyte onboard dual-port memory), and pulse and direction output of up to 5 µm pulses/sec.

Performance Motion Devices (PMD) Inc., 55 Old Bedford Rd., Lincoln, MA 02773, (781) 674-9861,