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PCI-1784U-AE 4-axis Quadrature Encode/Counter Universal PCI Card with 8-ch Isolated Digital I/O

  • Four 32-bit up/down counters
  • Single ended or differential inputs
  • Pulse/direction and up/down counter
  • x1, x2, x4 counts for each encoder cycle
  • Multiple interrupt sources for precision application
  • 4-stage digital filter with selectable sampling rate
  • On-board 8-bit timer with wide range time-base selector
  • Optically isolated up to 2,500 VDC
  • 4 isolated digital input
  • 4 isolated digital output
  • BoardID™ switch
Certifications CE

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More Description

PCI-1784U is a 4-axis quadrature encoder and counter add-on card for PCI bus. The card includes four 32-bit quadruple AB phase encoder counters, 8-bit timer with multi range

Accessory Products



4-axis Quadrature Encode/Counter Universal PCI Card with 8-ch Isolated Digital I/O

Accessory Products

  • DB37 DIN-rail Wiring Board



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Product Spotlight

Machine automation applications typically require high-performance digital input, digital output, and relay output cards for integrating and managing peripheral devices. Advantech provides a whole series of digital I/O cards with a variety of functions to meet all the digital I/O needs of your test and control applications, including automotive design, industrial factory automation, and machine control.

Feature Highlights
Real-time Responsiveness with Multiple Advanced Functions to Overcome Harsh Environments
  • Digital filters eliminate environmental noise, such as chattering from input signals.
  • 2500 VDC isolation voltage protection
  • Provides an interrupt function for a faster and more flexible response
Cost-optimized Solution with High Density I/O

High density design with dedicated 128-ch isolated digital I/O on a single board, helping save space for more efficient installation.

Free DAQ SDK Tool to Shorten Development Times
  • Latest operating system support: Win7, Win10, and Linux
  • Supports multiple programming languages: C/C++, Visual Basic, C#, VB.NET, and LabVIEW
  • Guaranteed reliable execution for multi-thread programming
I/O Card Quick Selector
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Advantech provides an online selector for you to easily choose the model you need, just click here:

Product Specifications
Unit: mm
PCI-1700 Series
PCIE-1700 Series
Inside the Box
DIO Card Series

Extended Specifications


  • Programming Language C#,C++, LabVIEW, VB.Net, BCB, MFC, VB6, Delphi, Java, Matlab, Qt

Counter/Encoder Input

  • Channels 4
  • Mode Counter (up/down, bi-direction, up, A/B Phase)
  • Counting Range 32-bit

Digital Input

  • Channels 4 (Isolated)
  • Isolation Protection 2,500 VDC

Digital Output

  • Channels 4 (Isolated)
  • Isolation Protection 2,500 VDC
Office Locations


Monday-Friday, 7am-5pm CST

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