1. Introduction

Thank you for buying the Advantech PCI-1784. The PCI-1784 is a 4- axis quadrature encoder and counter card for PCI bus. This card includes four 32-bit quadruple AB phase encoder counters, 8-bit timer with multi range time-base selector and four isolated digital input and four isolated digital output. Its flexible interrupt sources are suitable for motor control and position monitoring.

The following sections of this chapter will provide further information about features of the multifunction cards, a Quick Start for installation, together with some brief information on software and accessories for the PCI-1784 card.

1.1Features

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

Optically isolated up to 2500 VDC

4-stage digital filter with selectable sampling rate

On board 8-bit timer with wide range time-base selector

Multiple interrupt sources for precision application

Four isolated digital input

Four isolated digital output with flexible function

Board ID

The Advantech PCI-1784 offers the following main features:

Encoder Interface

Each channel includes a decoding circuit for incremental quadrature encoding. Inputs accept either single-ended or differential signals. Quadrature input works with or without an index, allowing linear or rotary encoder feedback.

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Advantech PCI-1784 specifications Introduction, Features, Encoder Interface