PCI-DIO24 24-bit, Logic-level Digital I/O Board User's Guide Document Revision 2, June, 2006 © Copyright 2006, Measurement Computing Corporation
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Table of Contents Preface About this User's Guide .......................................................................................................................v What you will learn from this user's guide .........................................................................................................v Conventions in this user's guide........................................................................................................................................
Preface About this User's Guide What you will learn from this user's guide This user's guide explains how to install, configure, and use the PCI-DIO24 so that you get the most out of the digital I/O features. This user's guide also refers you to related documents available on our web site, and to technical support resources. Conventions in this user's guide For more information on … Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading.
Chapter 1 Introducing the PCI-DIO24 This manual explains how to install, configure and use the PCI-DIO24 digital I/O board. The PCI-DIO24 provides 24 lines of digital I/O. An on-board, industry standard 82C55 programmable peripheral interface chip provides the 24 digital I/O lines in three eight-bit ports (Port A, Port B, and Port C). 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.
PCI-DIO24 User's Guide Introducing the PCI-DIO24 Software features For information on the features of InstaCal and the other software included with your PCI-DIO24, 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 www.mccdaq.com/download.htm for the latest software version or versions of the software supported under less commonly used operating systems.
Chapter 2 Installing the PCI-DIO24 What comes with your PCI-DIO24 shipment? The following items are shipped with the PCI-DIO24. Hardware ! PCI-DIO24 Additional documentation In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of the software you received with your PCI-DIO24 and information regarding installation of that software.
PCI-DIO24 User's Guide ! Installing the PCI-DIO24 Signal termination and conditioning accessories MCC provides signal termination products for use with the PCI-DIO24. Refer to the "Field wiring and signal termination" section on page 2-4 for a complete list of compatible accessory products. Unpacking the PCI-DIO24 As with any electronic device, you should take care while handling to avoid damage from static electricity.
PCI-DIO24 User's Guide Installing the PCI-DIO24 Connecting the board for I/O operations Connectors, cables – main I/O connector Table 2-1 lists the board connector type, applicable cables, and compatible accessory products for the PCIDIO24. Table 2-1. Board connectors, cables, and accessory equipment Connector type Compatible cables Compatible accessory products (with the C37FF-x or C37FFS-x cable) 37-pin D-type C37FF-x unshielded ribbon cable. x = length in feet.
PCI-DIO24 User's Guide Installing the PCI-DIO24 Information on signal connections General information regarding signal connection and configuration is available in the Guide to Signal Connections. This document is available on our web site at www.mccdaq.com/signals/signals.pdf. Cabling The red stripe identifies pin # 1 1 1 20 20 37 37 19 19 Figure 2-2. C37FF-x cable 1 19 1 20 37 19 20 37 Figure 2-3.
PCI-DIO24 User's Guide ! ! ! Installing the PCI-DIO24 CIO-ERB08 — Eight-channel electromechanical relay accessory for digital I/O boards. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=241. CIO-SERB08 — Eight Form C and ten socketed relay accessory for digital I/O boards. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=680.
Chapter 3 Programming and Developing Applications After following the installation instructions in Chapter 2, your board should now be installed and ready for use. Programming languages Measurement Computing’s Universal Library™ provides access to board functions from a variety of Windows programming languages.
Chapter 4 Functional Details DIO signals All digital outputs and inputs on the PCI-DIO24 are CMOS TTL. Voltages and currents associated with external devices are usually far greater than can be supplied from a PCI-DIO24. Caution! Direct connections to high-current/high voltage devices will damage the board. The 82C55 digital I/O chip initializes all ports as inputs on power-up and reset. The state of the digital I/O lines is not defined as either logic high or logic low when in input mode.
PCI-DIO24 User's Guide HI HI n6 n6 n4 n3 n1 User Connector Digital I/O Lines n7 n2 n = A, B, or C COM n7 n5 Digital I/O Port +5 VDC Dot indicates the common line 2.2 K SIP 2.2 K SIP User Connector Digital I/O Lines +5 VDC Functional Details n5 Digital I/O Port n4 n3 n2 n = A, B, or C n1 n0 n0 LO (GND) LO (GND) COM Dot indicates the common line 2.2 K SIP installed for pull-up 2.2 K SIP installed for pull-down Figure 4-2.
Chapter 5 Specifications Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Power consumption Table 1. Power consumption specifications +5V operating 240 typical, 350 max Digital input / output Table 2.
PCI-DIO24 User's Guide Specifications Main connector and pin out Table 4. Board connector, cables, and accessory equipment Connector type Compatible cables Compatible accessory products (with the C37FF-x or C37FFS-x cable) 37-pin D-type C37FF-x unshielded ribbon cable. x = length in feet. C37FFS-x cable shielded round cable. x = length in feet. SCB-37 CIO-MINI37 CIO-MINI37-VERT CIO-ERB08 CIO-SERB08 CIO-ERB24 CIO-SPADE50 SSR-RACK08 SSR-RACK24 Table 5.
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