Measurement-computing PCI-DIO24/S Instrukcja Użytkownika Pobierz pdf (Strona 7)

Chapter 1

Introducing the PCI-DIO24/S

Overview: PCI-DIO24/S features

This manual explains how to install, configure and use the PCI-DIO24/S digital I/O board. You can use this

board in a variety of digital applications to control logic devices such as switches, gauges, relays, pumps, and

sensors.

The PCI-DIO24/S is a 24-bit, TTL-compatible digital I/O board. Digital I/O lines are accessed through a 37-pin

connector. Digital I/O and interrupt pins are protected from electrostatic discharges of up to ±15 kV (air) and ±8

kV (contact).

An on-board, industry standard 82C55 programmable peripheral interface chip provides the 24 discrete digital

I/O lines in three eight-bit ports (Port A, Port B, and Port C) for each board. Port C can be further divided into

two four-bit ports (Port C-HI and Port C-LO). You can configure each port independently for either input or

output. The PCI-DIO24/S supports 5V or 3.3V TTL/CMOS I/O signaling.

The PCI-DIO24/S has open locations where you can install a pull-up or pull-down resistor for each port. All I/O

bits are set to input mode on power up and reset.

The PCI-DIO24/S board is completely plug-and-play, with no jumpers or switches to set. All board addresses

are set by your system's plug-and-play software.

Software features

For information on the features of InstaCal and the other software included with your PCI-DIO24/S, refer to the

Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

Check http://www.mccdaq.com/download.htm for the latest software version or versions of the software

supported under less commonly used operating systems.

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Measurement-computing PCI-DIO24/S Instrukcja Użytkownika Strona 7