Skip to main content

USB-DAQ-D-SNK

Product Features​

  1. USB 2.0 Full-Speed Bus Powered
  2. Digital Output (DO): 12-channel NPN, Opto-isolated 24V
  3. Digital Input (DI): 14-channel NPN, Opto-isolated 24V
  4. PWM/Counter
  5. Requires External 24V DC Power
  6. Supports Python, C#, and LabVIEW

⚠️ External 24V power supply required.

Pinout​

USB-DAQ-D-SNK Pinout

DAQ Wiring Guide​

USB-DAQ-D-SNK is a sinking output, sourcing input module, also known as NPN type. Outputs can be looped back to inputs for testing. When using, you must provide 24V to Pins 15 & 16, and 0V to Pins 13 & 14 respectively.

💡 WPC currently does not offer PNP type USB I/O hardware.

The figure below shows the DO equivalent circuit. When generating output, the DO pin connects to 0V. The load side requires a common anode 24V connection.

DO Wiring

The figure below shows the DI equivalent circuit. All DI channels internally share a common anode 24V. Therefore, connecting a DI input pin to 0V will result in reading TRUE from that DI pin. DI pins can also be loop-back tested via DO pins.

DI Wiring