High-Speed Counter Module Select high-speed counter inputs when… …you need pulse accumulators, pulse rate, or position information. n Count rates to 50 KHz n Cascade counters for 32-bit results n Measure pulses per second or per minute n Direct position detection from quadrature encoders n Individually isolated inputs for best noise immunity n Count inputs also report as discrete inputs Performance Specifications Number of counters Count mode performance: Guaranteed count rate Count resolution Rate (frequency) mode performance: Maximum input rate Shortest measurement period Longest measurement period Position mode performance: Maximum position axes (two channels per axis) Maximum pulses per second Maximum quadrature states per second Position resolution Input performance: Guaranteed count input voltage Maximum count input voltage Guaranteed off input voltage Nominal count input current Maximum ST-Bus power Isolation (input to ST-Bus) Operating temperature range Storage temperature range Humidity (non-condensing) 8 50 KHz 16 bits 50,000 per sec 100 mS 1 min 4 25,000 100,000 32 bits 4 Volts 30 Volts 1.5 Volts 8 mA 600 mW 1200 V -30 to 70°C -40 to 85°C 5 to 95% Note: A pair of counter channels can be combined to make a 32-bit up/down counter or accumulator. Ordering Information Description 8 High Speed Counters w/Base Module Only Part Number ST-DI-CNT-08U ST-DI-CNT-08M SIXNET , 331 Ushers Rd., Ballston Lake, NY 12019 USA • +1 (518) 877-5173 • FAX +1 (518) 877-8346 • [email protected]