cDAQ‑9171（NI，PN：781425‑01）

1. Model & Part Number

• Model: cDAQ‑9171

• NI PN: 781425‑01NI

2. Key Specifications

• Slots: 1 × C Series module (hot‑swappable)NI

• Interface: USB 2.0 (bus‑powered, 5 V, max 500 mA)

• Onboard Counters: 4 × 32‑bit general‑purpose counter/timers (access via digital module)NI

• Timing Accuracy: 50 ppm (sample rate)

• FIFO: AI=127 samples; AO=127 samples; DI=511 samples; DO=63 samples

• Operating Temp: −20 °C to 55 °C

• Storage Temp: −40 °C to 85 °C

• Humidity: 5%–90% non‑condensing

• Dimensions: 131.3 × 88.7 × 33.3 mm (5.17 × 3.49 × 1.31 in)

• Weight: ~354 g (12.5 oz)

3. Features

• Bus‑powered: No external power supply needed (USB 5 V)NI

• Plug‑and‑play: USB enumeration; auto‑detects C Series modulesNI

• Integrated counters: 4 × 32‑bit counters for encoder, PWM, event countingNI

• Compact & portable: Small footprint; panel/DIN rail mountable

• NI‑DAQmx driver: Compatible with LabVIEW, LabWindows/CVI, Measurement Studio

• Signal streaming: Patented NI Signal Streaming for continuous waveform data

4. Compatibility

• C Series Modules: 50+ hot‑swappable modules (analog I/O, digital I/O, counter/timer, sensors: thermocouple, RTD, strain, vibration, etc.)

• Software: NI‑DAQmx, LabVIEW, LabWindows/CVI, Python, C#

• Cables: Standard USB 2.0 cable (A to B)

5. Applications

• Portable sensor systems: Temperature, voltage, current, strain, vibrationNI

• Small‑scale DAQ: Mixed analog/digital I/O, counter/timer measurementsNI

• Encoder/PWM: Quadrature encoders, PWM generation, event countingNI

• Educational labs: Compact, low‑cost USB DAQ for teachingNI

• Field testing: Battery‑powered portable data loggingNI