The Emerson Rx3i motion high speed counting modules can be used for a wide range of applications. The IC694APU300 features 1Mhz input frequency, expanded filtering, single ended, differential encoders, 32 bit counters, Z counter and windowing. The IC695HSC308 features high speed I/O processing, 8 counters, supports high speed counting, PLS (programmable limit switch), camming, input interrupts and pulse width timing.