The NI Data Acquisition Control System (http://sine.ni.com/nips/cds/view/p/lang/en/nid/208114) is the complete solution for your control application. Hardware form factors include USB and PCIe where the PCIe option allows you to add a Real-Time Industrial Controller for deterministic timing. Multiple digital channels, analog channels and counter/timers allow for closed-loop feedback. Please see http://ni.com/daq/systems for more information on National Instruments DAQ Systems.