The DNA-CT-602 and DNR-CT-602 are differential counter/timer interfaces for UEI’s “Cube” and RACKtangle I/O chassis respectively. The DNA/DNR versions are electrically identical and provide four independent 32-bit channels, each one having overvoltage protection and opto-isolation. They perform up/down counting in a number of flexible modes using values from a Load Register and two Compare Registers. They can act as an event counter, perform width/ period measurements and run in quadrature-encoder mode where the user sets the direction of the counting. For output modes, the layer offers 1-shot and Universal PWM operation. It also provides edge detection on the ClockIn and Gate pins. The DNx-CT-602 is software compatible with the DNx-CT-601 except for the additional commands which configure and control the Trigger
Output pins. The DNx-CT-602 provides the following 8 counting modes which will accommodate most data acquisition and data logging requirements:
- Timer
- PWM generator
- Continuously updated PWM generator (buffered)
- Bin counter (number of pulses in specified time interval)
- Pulse width
- Pulse period (232 periods max)
- Quadrature encoder
- Timebase operation