Measurement Specialties PCI-DIO24 User Manual

PCI-DIO24

24-bit, Logic-level Digital I/O Board

User's Guide

Document Revision 2, June, 2006

© Copyright 2006, Measurement Computing Corporation

Your new Measurement Computing product comes with a fantastic extra —

Management committed to your satisfaction!

Refer to www.mccdaq.com/execteam.html for the names, titles, and contact information of each key executive at Measurement
Computing.

Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy
the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our two
missions:

! To offer the highest-quality, computer-based data acquisition, control, and GPIB hardware and software available—at

the best possible price.

! To offer our customers superior post-sale support—FREE. Whether providing unrivaled telephone technical and sales

support on our latest product offerings, or continuing that same first-rate support on older products and operating
systems, we’re committed to you!

Lifetime warranty: Every hardware product manufactured by Measurement Computing Corporation is warranted against
defects in materials or workmanship for the life of the product. Products found defective are repaired or replaced promptly.

Lifetime Harsh Environment Warranty®: We will replace any product manufactured by Measurement Computing
Corporation that is damaged (even due to misuse) for only 50% of the current list price. I/O boards face some tough operating
conditionssome more severe than the boards are designed to withstand. When a board becomes damaged, just return the unit
with an order for its replacement at only 50% of the current list price. We don’t need to profit from your misfortune. By the way,
we honor this warranty for any manufacturer’s board that we have a replacement for.

30 Day Money Back Guarantee: You may return any Measurement Computing Corporation product within 30 days of
purchase for a full refund of the price paid for the product being returned. If you are not satisfied, or chose the wrong product by
mistake, you do not have to keep it. Please call for an RMA number first. No credits or returns accepted without a copy of the
original invoice. Some software products are subject to a repackaging fee.

These warranties are in lieu of all other warranties, expressed or implied, including any implied warranty of merchantability or
fitness for a particular application. The remedies provided herein are the buyer’s sole and exclusive remedies. Neither
Measurement Computing Corporation, nor its employees shall be liable for any direct or indirect, special, incidental or
consequential damage arising from the use of its products, even if Measurement Computing Corporation has been notified in
advance of the possibility of such damages.

HM PCI-DIO24.doc

ii

Trademark and Copyright Information

TracerDAQ, Universal Library, InstaCal, Harsh Environment Warranty, Measurement Computing Corporation, and the
Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation.

Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation

LabVIEW is a trademark of National Instruments.

CompactFlash is a registered trademark of SanDisk Corporation.

All other trademarks are the property of their respective owners.

Information furnished by Measurement Computing Corporation is believed to be accurate and reliable. However, no
responsibility is assumed by Measurement Computing Corporation neither for its use; nor for any infringements of patents or
other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or
copyrights of Measurement Computing Corporation.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by
any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of
Measurement Computing Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use
in life support systems and/or devices without prior written consent from Measurement Computing Corporation.
Life support devices/systems are devices or systems which, a) are intended for surgical implantation into the body,
or b) support or sustain life and whose failure to perform can be reasonably expected to result in injury.
Measurement Computing Corporation products are not designed with the components required, and are not subject
to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people.

iii

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........................................................................................................................................ v

Where to find more information.........................................................................................................................v

Chapter 1

Introducing the PCI-DIO24 ............................................................................................................... 1-1

PCI-DIO24 block diagram ............................................................................................................................. 1-1

Software features............................................................................................................................................ 1-2

Chapter 2

Installing the PCI-DIO24 ................................................................................................................... 2-1

What comes with your PCI-DIO24 shipment?............................................................................................... 2-1

Hardware ....................................................................................................................................................................... 2-1

Additional documentation.............................................................................................................................................. 2-1

Optional components ..................................................................................................................................................... 2-1

Unpacking the PCI-DIO24 ............................................................................................................................. 2-2

Installing the software .................................................................................................................................... 2-2

Installing the hardware ................................................................................................................................... 2-2

Configuring the hardware............................................................................................................................... 2-2

Connecting the board for I/O operations ........................................................................................................ 2-3

Connectors, cables – main I/O connector ...................................................................................................................... 2-3

Pin out – main I/O connector......................................................................................................................................... 2-3

Cabling........................................................................................................................................................................... 2-4

Field wiring and signal termination ............................................................................................................................... 2-4

Chapter 3

Programming and Developing Applications .................................................................................. 3-1

Programming languages ................................................................................................................................. 3-1

Packaged applications programs .................................................................................................................... 3-1

Register-level programming........................................................................................................................... 3-1

Chapter 4

Functional Details ............................................................................................................................. 4-1

DIO signals..................................................................................................................................................... 4-1

Signal level control......................................................................................................................................... 4-1

Chapter 5

Specifications.................................................................................................................................... 5-1

Power consumption ........................................................................................................................................ 5-1

Digital input / output ...................................................................................................................................... 5-1

Environmental ................................................................................................................................................ 5-1

Main connector and pin out............................................................................................................................ 5-2

iv

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.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

example:

1. Insert the disk or CD and click the OK button.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

example:
The InstaCal® installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.

Where to find more information

The following electronic documents provide information that is relevant to the operation of the PCI-DIO24.

! MCC's Specifications: PCI-DIO24 (the PDF version of the Electrical Specification Chapter in this guide) is

available on our web site at www.mccdaq.com/pdfs/PCI-DIO24.pdf

! MCC's Quick Start Guide is available on our web site at

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

! MCC's Guide to Signal Connections is available on our web site at

www.mccdaq.com/signals/signals.pdf

! MCC's Universal Library User's Guide is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf

! MCC's Universal Library Function Reference is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf

! MCC's Universal Library for LabVIEW

www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf

.

.

™

User’s Guide is available on our web site at

.

.

.

.

PCI-DIO24 User's Guide (this document) is also available on our web site at

www.mccdaq.com/PDFmanuals/PCI-DIO24.pdf

.

v

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. All 24 I/O lines are accessible through the board's 37-pin connector.
The I/O pins of an 82C55 are bi-directional CMOS TTL level.

82C55 mode 1 or mode 2 operation

This user's guide provides information on I/O configuration of the 82C55 in mode 0. To use the 82C55 in
modes 1 or 2, refer to the 82C55A CMOS Programmable Interface datasheet. This document is available on our
web site at www.mccdaq.com/82C55.

PCI-DIO24 block diagram

PCI-DIO24 functions are illustrated in the block diagram shown here.

PORT A (7:0)

PORT B (7:0)

PORT CH (3:0)

PORT CL (3:0)

37-Pin I/O Connector

+5V

+12V

-12V

8255 DIO

PORT A

PORT B

PORT CH

PORT CL

Controller FPGA and logic

Control

Bus

Control

Decode/Status

Bus

Timing

Local Bus

Boot

EEPROM

PCI BUS (5V, 32-bit, 33 MHZ)

Registers

PCI

Controller

Control

Interrupt

Control

BADR1

BADR2

Interrupt

IRQ INPUT

IRQ ENABLE

1-1

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
under less commonly used operating systems.

for the latest software version or versions of the software supported

1-2

Installing the PCI-DIO24

What comes with your PCI-DIO24 shipment?

The following items are shipped with the PCI-DIO24.

Hardware

! PCI-DIO24

Chapter 2

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

the software you received with your PCI-DIO24 and information regarding installation of that software. Please
read this booklet completely before installing any software or hardware.

). This booklet supplies a brief description of

Optional components

If you ordered any of the following products with your board, they should be included with your shipment.

! Cables

C37FF-x

C37FFS-x

2-1

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. Before removing the PCI-DIO24 from its packaging, ground yourself using a wrist strap or by
simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify Measurement Computing Corporation immediately by
phone, fax, or e-mail:

! Phone: [phone] and follow the instructions for reaching Tech Support.
! Fax: [phone] to the attention of Tech Support
! Email: [e-mail]

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data
Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-

Quick-Start.pdf.

Installing the hardware

The PCI-DIO24 board is completely plug-and-play, with no switches or jumpers to set. Configuration is
controlled by your system's BIOS. To install your board, follow the steps below.

Install the MCC DAQ software before you install your board

The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install
the MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on
installing the software.

1.

Turn your computer off, open it up, and insert your board into an available PCI slot.

2.

Close your computer and turn it on.

If you are using an operating system with support for plug-and-play (such as Windows 2000 or Windows
XP), a dialog box pops up as the system loads indicating that new hardware has been detected. If the
information file for this board is not already loaded onto your PC, you will be prompted for the disk
containing this file. The MCC DAQ software contains this file. If required, insert the Measurement
Computing Data Acquisition Software CD and click

3.

To test your installation and configure your board, run the InstaCal utility installed in the previous section.
Refer to the Quick Start Guide that came with your board for information on how to initially set up and
load InstaCal.

OK.

Configuring the hardware

All hardware configuration options on the PCI-DIO24 are software controlled.

2-2

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 PCI-

DIO24.

Table 2-1. Board connectors, cables, and accessory equipment

Connector type 37-pin D-type

Compatible cables C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 2-2)

C37FFS-x cable shielded round cable. x = length in feet. (see Figure 2-3)

Compatible accessory products
(with the C37FF-x or C37FFS-x cable)

SCB-37

CIO-MINI37

CIO-MINI37-VERT

CIO-ERB08

CIO-SERB08

CIO-ERB24

CIO-SPADE50

SSR-RACK08

SSR-RACK24

Pin out – main I/O connector

The I/O connector is a 37-pin, male D-type connector accessible from the rear of the computer through the
expansion backplate. The signals available are direct connections to the digital I/O chips as well as the
computer's internal power supplies. The pin out is identical to the CIO-DIO24, except that −5 VDC is not
brought out. The PCI-DIO24 board's I/O connector is shown in Fi . gure 2-1

Figure 2-1. PCI-DIO24 board connector pin out

2-3

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

1

20

37

19

Figure 2-2. C37FF-x cable

1

19

20

37

identifies pin # 1

19

1

20

37

1

19

20

37

Figure 2-3. C37FFS-x cable

Field wiring and signal termination

You can use the following MCC screw terminal boards and relay racks with the PCI-DIO24 board using the
C37FF-x or C37FFS-x cable:

! SCB-37 — 37-conductor, shielded signal connection/screw terminal box that provides two independent 37-

pin connections. Details on this product are available at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=196&pf_id=1166

! CIO-MINI37 — 4 x 4, 37-pin screw terminal board. Details on this product are available at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=255

! CIO-MINI37-VERT

— 37-pin screw terminal accessory with vertical 37-pin male D connector. Details on

this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=256

! CIO-SPADE50

— 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors.

Details on this product are available on our web site at www.mccdaq.com/pdfs/screw.pdf

! SSR-RACK24 — 24-position solid state relay rack. Details on this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=1193.

! SSR-RACK08 — Eight-channel solid state relay rack. Details on this product are available on our web site

at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=620

2-4

.

.

.

.

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

.

! CIO-ERB24 — 24-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

.

2-5

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. If you are planning to write programs, or would like to run the example programs for
Visual Basic or any other language, please refer to the Universal Library User's Guide (available on our web
site at www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf

Packaged applications programs

Many packaged application programs, such as SoftWIRE and HP-VEE™ now have drivers for your board. If
the package you own does not have drivers for the board, please fax or e-mail the package name and the
revision number from the install disks. We will research the package for you and advise how to obtain drivers.

).

Some application drivers are included with the Universal Library package, but not with the application package.
If you have purchased an application package directly from the software vendor, you may need to purchase our
Universal Library and drivers. Please contact us by phone, fax or e-mail:

! Phone: [phone] and follow the instructions for reaching Tech Support.
! Fax: [phone] to the attention of Tech Support
! Email: [e-mail]

Register-level programming

You should use the Universal Library or one of the packaged application programs mentioned above to control
your board. Only experienced programmers should try register-level programming.

If you need to program at the register level in your application, refer to the Register Map for the PCI-DIO24,
PCI-DIO24H, PCI-DIO24/S, and PCI-DIO24/LP. This document is available at

www.mccdaq.com/registermaps/RegMapPCI-DIO24X.pdf

.

3-1

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. Input devices connected to the PCI-DIO24
board may detect either a high or a low, and therefore may be turned off or on at power-up.

Signal level control

All I/O bits are set to a high impedance input mode on power up and reset. To prevent unwanted signal levels,
and to drive all inputs on the device you are controlling to a known state after power up or reset, install pull-up
or pull-down resistors.

A pull-up resistor pulls all digital pins up to +5 V (high logic level). A pull-down resistor pulls all digital pins
down to 0 V (low logic level).

The PCI-DIO24 has open locations where you can install a 2.2 KΩ, eight-resistor single inline package (SIP)
resistor network for each port. The SIP is made up of eight 2.2 KΩ resistors. One side of each resistor is
connected to a single common point and brought out to a pin. The common line is marked with a dot or line at
one end of the SIP. The remaining resistor ends are brought out to the other eight pins (see ). Figure 4-1

2.2KOhm SIP

Dot

(LO or HI)

I/O Lines

Figure 4-1. Eight-resistor SIP schematic

Install the SIP on the PCI-DIO24 board at the locations labeled PORT A, PORT B and PORT C (adjacent to
the 37-pin connector). shows a schematic of an SIP installed in both the pull-up and pull-down
positions.

Figure 4-2

4-1

PCI-DIO24 User's Guide Functional Details

+5 VDC

HI

n7

n6

n5

n4

n3

n2

n1

n0

LO
(GND)

2.2 K SIP

COM

User Connector

Digital I/O Lines

Digital

I/O Port

n = A, B, or C

+5 VDC

HI

n7

n6

n5

n4

n3

n2

n1

n0

LO

(GND)

2.2 K SIP

COM

Dot indicates the
common line

User Connector

Digital I/O Lines

Digital

I/O Port

n = A, B, or C

Dot indicates the
common line

2.2 K SIP installed for pull-up

2.2 K SIP installed for pull-down

Figure 4-2. Pull-up and pull-down resistor SIP schematic

When installed, the SIP establishes either a high or low logic level at each of the eight I/O lines on the port. At
each board location, A, B, and C, there are 10 holes in a line. The hole on one end is marked "HI" and is
connected to +5V. The other end is marked "LO" and is connected to GND. The eight holes in the middle
connect to eight lines of the port, A, B or C.

To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the resistor
with the common pin in the LO hole.

Note:

We recommend using 2.2KΩ SIPs (MCC part number SP-K2.29C). Use a different value only if necessary.

4-2

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. Digital input / output specifications

Digital type 82C55

Configuration 2 banks of 8, 2 banks of 4, programmable by bank as input or output

Number of channels 24 I/O

Output high 3.7 volts min @ -2.5 mA

Output low 0.4 volts max @ 2.5 mA

Input high 2.2 volts min, 5.3 volts absolute max

Input low 0.8 volts max, -0.3 volts absolute min

Power-up / reset state Input mode (high impedance)

Interrupts INTA# - mapped to IRQn via PCI BIOS at boot-time

Interrupt enable External (IR ENABLE, active low, disabled by default through internal resistor to

TTL high) and programmable through PCI9052;
0 = disabled, 1 = enabled (default)

Interrupt sources External source (IR INPUT), polarity programmable through PCI9052;

1 = active high, 0 = active low (default)

Chapter 5

Environmental

Table 3. Environmental specifications

Operating temperature range 0 to 50 °C

Storage temperature range -20 to 70 °C

Humidity 0 to 90% non-condensing

5-1

PCI-DIO24 User's Guide Specifications

Main connector and pin out

Table 4. Board connector, cables, and accessory equipment

Connector type 37-pin D-type

Compatible cables C37FF-x unshielded ribbon cable. x = length in feet.

C37FFS-x cable shielded round cable. x = length in feet.

Compatible accessory products (with
the C37FF-x or C37FFS-x cable)

Pin Signal Name Pin Signal Name

1

IRQ INPUT 20

2

IRQ ENABLE 21

3

Port B7 22

4

Port B6 23

5

Port B5 24

6

Port B4 25

7

Port B3 26

8

Port B2 27

9

Port B1 28

10

Port B0 29

11

GND 30

12

OPEN 31

13

GND 32

14

-12V 33

15

GND 34

16

+12V 35

17

GND 36

18

+5V 37

19

GND

SCB-37

CIO-MINI37

CIO-MINI37-VERT

CIO-ERB08

CIO-SERB08

CIO-ERB24

CIO-SPADE50

SSR-RACK08

SSR-RACK24

Table 5. Connector pin out

+5V
GND
Port C7
Port C6
Port C5
Port C4
Port C3
Port C2
Port C1
Port C0
Port A7
Port A6
Port A5
Port A4
Port A3
Port A2
Port A1
Port A0

5-2

Declaration of Conformity

Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Suite 1008
Norton, MA 02766
USA

Category: Electrical equipment for measurement, control and laboratory use.

Measurement Computing Corporation declares under sole responsibility that the product

PCI-DIO24

to which this declaration relates is in conformity with the relevant provisions of the following standards or
other documents:

EU EMC Directive 89/336/EEC: Electromagnetic Compatibility, EN 61326 (1997) Amendment 1 (1998)

Emissions: Group 1, Class A

! EN 55011 (1990)/CISPR 11: Radiated and Conducted emissions.

Immunity: EN61326, Annex A

! IEC 61000-4-2 (1995): Electrostatic Discharge immunity, Criteria C.
! IEC 61000-4-3 (1995): Radiated Electromagnetic Field immunity Criteria A.
! IEC 61000-4-8 (1994): Power Frequency Magnetic Field immunity Criteria A.

Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in
February, 2006. Test records are outlined in Chomerics Test Report #EMI4445.06.

We hereby declare that the equipment specified conforms to the above Directives and Standards.

Carl Haapaoja, Director of Quality Assurance

Measurement Computing Corporation

10 Commerce Way

Suite 1008

Norton, Massachusetts 02766

[phone]

Fax: [phone]

E-mail: [e-mail]

www.mccdaq.com