Measurement Computing PCI-DUAL-AC5 User manual

PCI-DUAL-AC5
High Output Digital I/O Board
User’s Guide
Document Revision 3, July, 2005
© Copyright 2005, Measurement Computing Corporation

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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
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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
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These warranties are in lieu of all other warranties, expressed or implied, including any implied warranty of
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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.
ii
HM PCI-DUAL-AC5.doc

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.
SoftWIRE is a registered trademark of SoftWIRE Technology, Inc.
Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation
LabVIEW is a trademark of National Instruments.
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.
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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 the written approval of the CEO of 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........................................................................................................................vi
Chapter 1
Introducing the PCI-DUAL-AC5 ....................................................................................................... 1-1
Overview: PCI-DUAL-AC5 features ............................................................................................................. 1-1
Software features............................................................................................................................................ 1-1
Block diagram ................................................................................................................................................ 1-2
Chapter 2
Installing the PCI-DUAL-AC5 ........................................................................................................... 2-1
What comes with your PCI-DUAL-AC5 shipment?...................................................................................... 2-1
Standard components..................................................................................................................................................... 2-1
Optional components ..................................................................................................................................................... 2-2
Unpacking the board ...................................................................................................................................... 2-2
Installing the software .................................................................................................................................... 2-3
Installing the hardware ................................................................................................................................... 2-3
Connecting the board for I/O operations ........................................................................................................ 2-3
Connectors, cables – main I/O connector ...................................................................................................................... 2-3
Pinout – main I/O connector .......................................................................................................................................... 2-4
Field wiring and signal termination ............................................................................................................................... 2-5
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
PCI-DUAL-AC5 to SSR-PB24 rack connections .......................................................................................... 4-1
82C55 emulation ............................................................................................................................................ 4-1
Pull-up and pull-down resistors ..................................................................................................................................... 4-2
TTL to solid state relays ................................................................................................................................................ 4-3
Chapter 5
Specifications.................................................................................................................................... 5-1
Power consumption ........................................................................................................................................ 5-1
Digital Input / Output ..................................................................................................................................... 5-1
Environmental ................................................................................................................................................ 5-1
Mechanical ..................................................................................................................................................... 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-DUAL-AC5 board so that you get
the most out of its 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
The following conventions are used in this manual to convey special information:
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 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.
v

PCI-DUAL-AC5 User's Guide About this User's Guide
Where to find more information
The following electronic documents provide helpful information relevant to the operation of the PCI-
DUAL-AC5.
MCC's Specifications: PCI-DUAL-AC5 (the PDF version of Chapter 6 in this guide) is available on
our web site at www.mccdaq.com/pdfs/PCI-DUAL-AC5.pdf.
MCC's Register Map for the PCI-DUAL-AC5 Series is available on our web site at
www.mccdaq.com/registermaps/RegMapPCI-DUAL-AC5.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™User’s Guide is available on our web site at
www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf.
This user's manual is also available on our web site at www.mccdaq.com/PDFmanuals/PCI-DUAL-
AC5.pdf.
vi

Chapter 1
Introducing the PCI-DUAL-AC5
Overview: PCI-DUAL-AC5 features
The PCI-DUAL-AC5 is a 48-bit, high output, digital I/O board for PCI-compatible computers. Primarily
designed as a direct interface to the industry-standard SSR-PB24 rack, the board is also highly useful as a
general purpose digital I/O board.
The 48-bits of digital I/O are organized into two 24-bit groups based on an 82C55 mode 0 emulation (no
strobed I/O or bi-directional I/O bits). Each 24-bit group is divided into three eight-bit ports labeled
PORTA, PORTB and PORTC. PORTC can be split into two four-bit nibbles — Port C-HI and Port C-
LO. Each of these ports may be individually programmed as input or output.
All inputs and outputs are TTL compatible. The digital output drivers are 74S244 chips that can sink
64 mA and source 15 mA. The input buffers are 74LS373 chips and have standard high input impedance
of the 74LS series devices. All I/O is brought out to a 100-pin connector, which also allows connection to
the PC’s +5 Volt and Ground.
On power up and reset, all I/O bits are set to input mode. If you are using the board to control items that
must be OFF on reset, install pull-down resistors. Each board is equipped with open locations where you
can install SIP resistor networks for either pull-up or pull-down.
The PCI-DUAL-AC5 board is completely plug-and-play, with no jumpers or switches to set. All board
addresses and interrupt sources are set by the board's plug-and-play software. Board configuration is
controlled by your system's BIOS.
Software features
The following software ships with the PCI-DUAL-AC5 free of charge.
InstaCal installation, calibration, and test utility
TracerDAQ™ suite of virtual instruments
SoftWIRE® for Visual Studio® .NET graphical programming
MCC DAQ Components for VS .NET (installed with SoftWIRE® for VS .NET)
For information on the features of InstaCal, TracerDAQ, and SoftWIRE, refer to the Quick Start Guide
booklet that shipped with the PCI-DUAL-AC5.
1-1

PCI-DUAL-AC5 User's Guide Introducing the PCI-DUAL-AC5
Block diagram
PCI-DUAL-AC5 functions are illustrated in the block diagram shown here.
PCI
Controller BADR2
Boot
EEPROM
Control
Registers
Decode/Status
Bus
Timing
Controller FPGA and Logic
Local Bus
PCI Bus (5V, 32-bit, 33 MHZ)
Control Bus
Port A
Port B
Control
A(7:0)
B(7:0)
Port C
C(7:0)
Port A
Port B
Control
A(7:0)
B(7:0)
Port C
C(7:0)
SSR-PB24SSR-PB24
AC/DC
AC/DC
I/O Module
Racks
1-2

Chapter 2
Installing the PCI-DUAL-AC5
What comes with your PCI-DUAL-AC5 shipment?
As you unpack your board, make sure each of the items shown below is included:
Standard components
The following items should be included with your shipment:
PCI-DUAL-AC5 board
Software
The Measurement Computing Data Acquisition Software CD contains the following software:
InstaCal installation, calibration, and test utility
TracerDAQ suite of virtual instruments
SoftWIRE for VS .NET
SoftWIRE MCC DAQ Components for .NET
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). Please read this booklet completely
before installing any software and hardware.
2-1