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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
conditionssome 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
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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
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Table of Contents
Preface
What you will learn from this user's guide.........................................................................................................v
Where to find more information.........................................................................................................................v
Chapter 1
Software features............................................................................................................................................ 1-2
Chapter 2
Unpacking the PCI-DIO24............................................................................................................................. 2-2
Connecting the board for I/O operations........................................................................................................ 2-3
Pin out – main I/O connector......................................................................................................................................... 2-3
Chapter 3
Programming and Developing Applications.................................................................................. 3-1
Register-level programming........................................................................................................................... 3-1
Chapter 4
Chapter 5
Main connector and pin out............................................................................................................................ 5-2
iv
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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:
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
MCC's Quick Start Guide is available on our web site at
MCC's Guide to Signal Connections is available on our web site at
MCC's Universal Library User's Guide is available on our web site at
MCC's Universal Library Function Reference is available on our web site at
MCC's Universal Library for LabVIEW™ 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
v
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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
PCI-DIO24 block diagram
PCI-DIO24 functions are illustrated in the block diagram shown here.
Controller FPGA and logic
8255 DIO
PORT A (7:0)
PORT A
Control
Control
PORT B (7:0)
Bus
Registers
PORT B
PORT CH (3:0)
PORT CL (3:0)
IRQ INPUT
PORT CH
PORT CL
IRQ ENABLE
Interrupt
Control
Decode/Status
+5V
Bus
Timing
+12V
-12V
Local Bus
Boot
EEPROM
BADR1
BADR2
PCI
Controller
Interrupt
PCI BUS (5V, 32-bit, 33 MHZ)
1-1
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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
Check www.mccdaq.com/download.htm for the latest software version or versions of the software supported
under less commonly used operating systems.
1-2
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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. Please
read this booklet completely before installing any software or hardware.
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
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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
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: 508-946-5100 and follow the instructions for reaching Tech Support.
Fax: 508-946-9500 to the attention of Tech Support
Email: [email protected]
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-
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 OK.
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.
Configuring the hardware
All hardware configuration options on the PCI-DIO24 are software controlled.
2-2
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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
Compatible accessory products
SCB-37
(with the C37FF-x or C37FFS-x cable)
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 Figure 2-1.
Figure 2-1. PCI-DIO24 board connector pin out
2-3
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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
Cabling
The red stripe
identifies pin # 1
1
20
1
20
37
37
19
19
Figure 2-2. C37FF-x cable
1
1
20
20
37
37
19
19
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
!
!
CIO-MINI37 — 4 x 4, 37-pin screw terminal board. Details on this product are available at
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
!
!
!
CIO-SPADE50 — 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors.
SSR-RACK24 — 24-position solid state relay rack. Details on this product are available on our web site at
SSR-RACK08 — Eight-channel solid state relay rack. Details on this product are available on our web site
2-4
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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
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
CIO-ERB24 — 24-channel electromechanical relay accessory for digital I/O boards. Details on this
product are available on our web site at
2-5
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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
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: 508-946-5100 and follow the instructions for reaching Tech Support.
Fax: 508-946-9500 to the attention of Tech Support
Email: [email protected]
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
3-1
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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). Figure 4-2 shows a schematic of an SIP installed in both the pull-up and pull-down
positions.
4-1
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PCI-DIO24 User's Guide
Functional Details
+5 VDC
+5 VDC
Dot indicates the
common line
2.2 K SIP
2.2 K SIP
COM
HI
n7
HI
n7
n6
n5
n6
n5
n4
n3
n2
Digital
I/O Port
n4
Digital
I/O Port
n3
n2
n = A, B, or C
n = A, B, or C
n1
n1
n0
n0
COM
LO
(GND)
LO
(GND)
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
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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
240 typical, 350 max
+5V operating
Digital input / output
Table 2. Digital input / output specifications
Digital type
82C55
Configuration
Number of channels
Output high
2 banks of 8, 2 banks of 4, programmable by bank as input or output
24 I/O
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
0.8 volts max, -0.3 volts absolute min
Input mode (high impedance)
Input low
Power-up / reset state
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)
Environmental
Table 3. Environmental specifications
Operating temperature range
Storage temperature range
Humidity
0 to 50 °C
-20 to 70 °C
0 to 90% non-condensing
5-1
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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)
SCB-37
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08
CIO-SERB08
CIO-ERB24
CIO-SPADE50
SSR-RACK08
SSR-RACK24
Table 5. Connector pin out
Pin
1
2
3
4
5
6
7
8
Signal Name
IRQ INPUT
IRQ ENABLE
Port B7
Port B6
Port B5
Port B4
Port B3
Port B2
Port B1
Port B0
GND
OPEN
GND
-12V
GND
+12V
GND
+5V
GND
Pin
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Signal Name
+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
9
10
11
12
13
14
15
16
17
18
19
5-2
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Declaration of Conformity
Manufacturer:
Address:
Measurement Computing Corporation
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
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Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, Massachusetts 02766
(508) 946-5100
Fax: (508) 946-9500
E-mail: [email protected]
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