Acromag, Inc. Digital I/O Module and Counter/Timer, AcPC400 Series AcPC424

24 differential I/O, 16 TTL I/O Four 16-bit counter/timer channels with six operating modes The AcPC424 provides 24 differential input/outputs, 16 TTL input/output channels, and four 16-bit multifunction counter/timers. The 16 TTL input/output channels can be programmed as inputs or as outputs on an individual channel basis. The 24 differential input/output channels are programmed as inputs or outputs on an 4-channel port basis. All input channels can be enabled for change of state, low, or high level transition interrupts. Four 16-bit multifunction counters/timers can be configured for pulse width modulated output, watchdog timer, event counter, frequency measurement, pulse width measurement, period measurement, or one shot pulse output. The four 16-bit counters can also be configured into two 32-bit counter/timers. Features • 0 to 70°C (-40 to 85°C E version) Digital I/O • 40 digital input/output channels: - 24 differential input/outputs - 16 TTL input/output channels - Programmable change of state/level interrupts - Input signal filtering debounce logic Counter/Timer • Four 16-bit or two 32-bit counter/timer channels (control lines shared with 16 TTL I/O channels) • Six operating modes: - Pulse width modulation - Watchdog timer - Event counter - Frequency measurement - Pulse width or period measurement - One-shot and repetitive one-shot - TTL-compatible thresholds - Power-up and system reset are failsafe