TM
IMAQ
IMAQ PCI-1424 User Manual
High-Quality Digital Image Acquisition Device for PCI
IMAQ PCI-1424 User Manual
August 2004
371869C-01
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Warranty
The IMAQ PCI-1424 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as
evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective
during the warranty period. This warranty includes parts and labor.
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covered by warranty.
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Regulations
Determining FCC Class
The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC
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or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products.
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Consult the FCC Web site at
FCC/DOC Warnings
This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions
in this manual and the CE marking Declaration of Conformity*, may cause interference to radio and television reception.
Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department
of Communications (DOC).
Changes or modifications not expressly approved by NI could void the user’s authority to operate the equipment under the
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Class A
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This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated
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www.fcc.gov for more information.
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Users in the European Union (EU) should refer to the Declaration of Conformity (DoC) for information* pertaining to the
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and click the appropriate link in the Certification column.
* The CE marking Declaration of Conformity contains important supplementary information and instructions for the user or
installer.
ni.com/certification, search by model number or product line,
Conventions
The following conventions are used in this manual:
» The » symbol leads you through nested menu items and dialog box options
to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.
This icon denotes a note, which alerts you to important information.
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on a
product, refer to the Safety Information secion of Chapter 2, Configuration
and Installation, for information about precautions to take.
When symbol is marked on a product, it denotes a warning advising you to
take precautions to avoid electrical shock.
When symbol is marked on a product it, denotes a component that may be
hot. Touching this component may result in bodily injury.
bold Bold text denotes items that you must select or click in the software, such
as menu items and dialog box options. Bold text also denotes parameter
names.
italic Italic text denotes variables, emphasis, a cross reference, or an introduction
to a key concept. This font also denotes text that is a placeholder for a word
or value that you must supply.
monospace Text in this font denotes text or characters that you should enter from the
keyboard, sections of code, programming examples, and syntax examples.
This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames, and extensions.
Contents
Chapter 1
Introduction
About the IMAQ PCI-1424 ...........................................................................................1-1
Software Overview ........................................................................................................1-2
NI-IMAQ Driver Software ..............................................................................1-2
National Instruments Application Software ....................................................1-3
Vision Builder for Automated Inspection.........................................1-3
Vision Development Module ............................................................1-3
Integration with DAQ......................................................................................1-4
Vision and Motion...........................................................................................1-4
Chapter 2
Configuration and Installation
What You Need to Get Started ......................................................................................2-1
Optional Equipment.......................................................................................................2-2
Unpacking......................................................................................................................2-2
Safety Information .........................................................................................................2-3
Installation .....................................................................................................................2-5
Chapter 3
Hardware Overview
Functional Overview......................................................................................................3-1
Signaling..........................................................................................................3-2
LUTs................................................................................................................3-2
Multiple-Tap Data Formatter ..........................................................................3-3
SDRAM...........................................................................................................3-3
RS-232 Serial Interface ...................................................................................3-3
Trigger Control and Mapping Circuitry ..........................................................3-3
High-Speed Timing .........................................................................................3-4
Acquisition and ROI........................................................................................3-4
Scatter-Gather DMA Controllers ....................................................................3-4
Device Configuration NVRAM ......................................................................3-4
Start Conditions ...............................................................................................3-4
Acquisition Window Control ..........................................................................3-5
© National Instruments Corporation vii IMAQ PCI-1424 User Manual
Contents
Chapter 4
Signal Connections
I/O Connector ................................................................................................................ 4-1
Signal Description ......................................................................................................... 4-3
Appendix A
Specifications
Appendix B
Technical Support and Professional Services
Glossary
Index
IMAQ PCI-1424 User Manual viii ni.com
Introduction
This chapter describes the IMAQ PCI-1424 device and describes your
software programming choices.
About the IMAQ PCI-1424
The PCI-1424 is a highly flexible, monochrome and color, PCI-based
image acquisition (IMAQ) device that supports a diverse range of digital
cameras from many camera companies. The PCI-1424 acquires digital
images in real time and can store these images in onboard frame memory,
or transfer these images directly to system memory. The device can capture
up to 32 bits of data at a time at clock speeds up to 50 MHz.
The PCI-1424 is simple to configure so that you can easily install the
device and begin acquiring images. The PCI-1424 ships with NI-IMAQ,
the National Instruments complete IMAQ driver software you can use
to directly control the PCI-1424 and other National Instruments IMAQ
hardware products. Using NI-IMAQ, you can quickly and easily start your
applications without having to program the device at the register level.
1
1
Featuring a high-speed data flow path, the PCI-1424 is ideal for both
industrial and scientific environments. As a standalone device, the
PCI-1424 supports up to 32 bits of differential or TTL level video data, four
general purpose control lines that can be configured to generate precise
timing signals to control digital camera acquisition, and four external
input/output (I/O) lines that you can use as triggers or as high-speed digital
I/O lines. If you require more advanced triggering or digital I/O lines (either
digital or analog), you can use the PCI-1424 and NI-IMAQ with the
National Instruments data acquisition (DAQ) product line.
A common problem with image acquisition devices is that you cannot
easily synchronize several functions to a common trigger or timing event.
The PCI-1424 uses its Real-Time System Integration (RTSI) bus to solve
this problem. The RTSI bus consists of the National Instruments RTSI bus
interface and ribbon cable to route additional timing and trigger signals
1
Early versions of the PCI-1424 may not support acquisitions at 50 MHz. For the exact maximum acquisition clock rate of your
PCI-1424, refer to the Maximum Clock Rate indicator in Measurement & Automation Explorer.
© National Instruments Corporation 1-1 IMAQ PCI-1424 User Manual
Chapter 1 Introduction
between the PCI-1424 and up to four National Instruments DAQ or IMAQ
devices in your computer. The RTSI bus can even synchronize multiple
IMAQ hardware captures.
Detailed specifications of the PCI-1424 are in Appendix A, Specifications.
Software Overview
Programming the PCI-1424 device requires the NI-IMAQ driver software
for controlling the hardware and one of the following application software
packages for image processing:
• Vision Builder for Automated Inspection (AI)—for configuring
solutions to common inspection tasks
• National Instruments Vision Development Module—for more
customized control over hardware and algorithms
The following sections provide an overview of the driver software and the
application software. For detailed information about individual software
packages, refer to the documentation specific to the package.
NI-IMAQ Driver Software
The NI-IMAQ driver software ships with the PCI-1424 device. NI-IMAQ
has an extensive library of functions you can call from your application
programming environment, such as routines for video configuration, image
acquisition (continuous and single-shot), memory buffer allocation, trigger
control, and device configuration.
NI-IMAQ performs all functions required for acquiring and saving images
but does not perform image analysis. For image analysis functionality, refer
to the National Instruments Application Software section of this chapter.
NI-IMAQ is also the interface path between LabVIEW,
LabWindows
IMAQ device. The NI-IMAQ software kit includes a series of libraries for
image acquisition for LabVIEW, LabWindows/CVI, and Measurement
Studio, which contains libraries for Visual Basic.
For maximum flexibility and performance, NI-IMAQ features both
high-level and low-level functions. Examples of high-level functions
include the sequences to acquire images in multi-buffer, single-shot, or
continuous mode. An example of a low-level function is configuring an
image sequence, since it requires advanced understanding of the IMAQ
device and image acquisition.
™
/CVI™, or a text-based programming environment and the
IMAQ PCI-1424 User Manual 1-2 ni.com
NI-IMAQ handles many of the complex issues between the computer and
the IMAQ device, such as programming interrupts and camera control.
National Instruments Application Software
Vision Builder for Automated Inspection
NI Vision Builder for Automated Inspection (AI) is configurable machine
vision software that you can use to prototype, benchmark, and deploy
applications. Vision Builder AI does not require programming, but is
scalable to powerful programming environments.
Vision Builder AI allows you to easily configure and benchmark a
sequence of visual inspection steps, as well as deploy the visual inspection
system for automated inspection. With Vision Builder AI you can perform
powerful visual inspection tasks and make decisions based on the results of
individual tasks. With Vision Builder AI, you can migrate your configured
inspection to LabVIEW, extending the capabilities of your applications if
necessary.
Vision Builder AI is available for LabVIEW, LabWindows/CVI, and
Measurement Studio, which includes support for Visual Basic.
Chapter 1 Introduction
Vision Development Module
The Vision Development Module is an image acquisition, processing, and
analysis library of more than 270 functions for grayscale, color, and binary
image display, image processing, pattern matching, particle analysis,
gauging, and measurement.
For unique image processing, you can use the Vision Development Module
functions individually or in combination. With the Vision Development
Module you can acquire, display, manipulate, and store images, as well as
perform image analysis, processing, and interpretation. Using the Vision
Development Module, imaging novices and experts can program the most
basic or complicated image applications without knowledge of particular
algorithm implementations.
NI Vision Assistant is included with the Vision Development Module.
Vision Assistant is an interactive prototyping tool for machine vision and
scientific imaging developers. With Vision Assistant, you can prototype
vision applications quickly and test how various vision image processing
functions work.
© National Instruments Corporation 1-3 IMAQ PCI-1424 User Manual
Chapter 1 Introduction
Vision Assistant generates a builder file, which is a text description
containing a recipe of the machine vision and image processing functions.
This builder file provides a guide you can use for developing applications
into any development environment, such as LabWindows/CVI or Visual
Basic, using the Vision Assistant machine vision and image processing
libraries. Using the LabVIEW VI creation wizard, Vision Assistant can
create LabVIEW VI diagrams that perform the prototype you created in
Vision Assistant. Using LabVIEW, you can add functionality to this
generated VI.
Integration with DAQ
Platforms that support NI-IMAQ also support NI-DAQ and a variety of
National Instruments DAQ devices. This allows integration between
IMAQ devices and National Instruments DAQ products.
Vision and Motion
With National Instruments IMAQ hardware and Vision Assistant pattern
matching software, you can quickly and accurately locate objects that vary
in size, orientation, focus, and illumination. Use National Instruments
high-performance stepper and servo motion control products with pattern
matching software in inspection and guidance applications, such as
locating alignment markers on semiconductor wafers, guiding robotic
arms, inspecting the quality of manufactured parts, and locating cells.
IMAQ PCI-1424 User Manual 1-4 ni.com
Configuration and Installation
This chapter lists what you need to get started acquiring images with
your IMAQ PCI-1424 device; describes optional equipment and custom
cables; and explains how to unpack, configure, and install your IMAQ
device.
What You Need to Get Started
To set up and use your PCI-1424, you will need the following:
❑ PCI-1424 device
❑ NI-IMAQ for Windows 2000/NT/XP
❑ Optional software packages and documentation:
– NI Vision Builder for Automated Inspection
– NI Vision Assistant
–LabVIEW
– LabWindows/CVI
– Measurement Studio
2
❑ IMAQ D100 series camera cables, depending on your camera
❑ IMAQ D2504 video cable (optional—for access to trigger lines)
❑ A video camera or other video source
❑ Pentium-based PCI computer running Windows 2000/NT/XP
© National Instruments Corporation 2-1 IMAQ PCI-1424 User Manual
Chapter 2 Configuration and Installation
Optional Equipment
National Instruments offers a variety of products for use with your
PCI-1424, including the following cables and other National Instruments
products:
• Cables to connect your digital camera to the PCI-1424
• A four-pod BNC cable, which routes trigger signals to a
BNC connector block (IMAQ D2504)
• IMAQ memory modules to increase PCI-1424 onboard memory
• RTSI bus cables for connecting the PCI-1424 to other IMAQ, DAQ,
or motion control hardware
• Other National Instruments DAQ devices for enhanced triggering,
timing, or input/output
For specific information about these products, refer to the National
Instruments catalog, visit
Unpacking
ni.com or call the office nearest you.
The PCI-1424 device ships in an antistatic package to prevent electrostatic
discharge from damaging device components. To avoid such damage in
handling the device, take the following precautions:
• Ground yourself using a grounding strap or by holding a grounded
object, such as your computer chassis.
• Touch the antistatic package to a metal part of your computer chassis
before removing the device from the package.
Caution Never touch the exposed pins of connectors.
• Remove the device from the package and inspect it for loose
components or any other signs of damage. Notify National Instruments
if the device appears damaged in any way. Do not install a damaged
device in your computer.
IMAQ PCI-1424 User Manual 2-2 ni.com
Safety Information
Caution The following paragraphs contain important safety information you must follow
when installing and operating the device.
Do not operate the module in a manner not specified in this document.
Misuse of the module can result in a hazard. You can compromise the safety
protection built into the module if the module is damaged in any way. If the
module is damaged, return it to National Instruments (NI) for repair.
Do not substitute parts or modify the module except as described in this
document. Use the module only with the chassis, modules, accessories, and
cables specified in the installation instructions. You must have all covers
and filler panels installed during operation of the module.
Do not operate the module in an explosive atmosphere or where there may
be flammable gases or fumes. If you must operate the module in such an
environment, it must be in a suitably rated enclosure.
If you need to clean the module, use a soft, nonmetallic brush. Make sure
that the module is completely dry and free from contaminants before
returning it to service.
Chapter 2 Configuration and Installation
Operate the module only at or below Pollution Degree 2. Pollution is
foreign matter in a solid, liquid, or gaseous state that can reduce dielectric
strength or surface resistivity. The following is a description of pollution
degrees:
• Pollution Degree 1 means no pollution or only dry, nonconductive
pollution occurs. The pollution has no influence.
• Pollution Degree 2 means that only nonconductive pollution occurs in
most cases. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
• Pollution Degree 3 means that conductive pollution occurs, or dry,
nonconductive pollution occurs that becomes conductive due to
condensation.
You must insulate signal connections for the maximum voltage for which
the module is rated. Do not exceed the maximum ratings for the module.
Do not install wiring while the module is live with electrical signals. Do not
remove or add connector blocks when power is connected to the system.
© National Instruments Corporation 2-3 IMAQ PCI-1424 User Manual
Chapter 2 Configuration and Installation
Avoid contact between your body and the connector block signal when hot
swapping modules. Remove power from signal lines before connecting
them to or disconnecting them from the module.
Operate the module at or below installation category
hardware label. Measurement circuits are subjected to working voltages
1
marked on the
2
and transient stresses (overvoltage) from the circuit to which they are
connected during measurement or test. Installation categories establish
standard impulse withstand voltage levels that commonly occur in
electrical distribution systems. The following is a description of installation
categories:
• Installation Category I is for measurements performed on circuits not
directly connected to the electrical distribution system referred to as
MAINS
3
voltage. This category is for measurements of voltages from
specially protected secondary circuits. Such voltage measurements
include signal levels, special equipment, limited-energy parts of
equipment, circuits powered by regulated low-voltage sources, and
electronics.
• Installation Category II is for measurements performed on circuits
directly connected to the electrical distribution system. This category
refers to local-level electrical distribution, such as that provided by a
standard wall outlet (for example, 115 AC voltage for U.S. or 230 AC
voltage for Europe). Examples of Installation Category II are
measurements performed on household appliances, portable tools, and
similar modules.
• Installation Category III is for measurements performed in the building
installation at the distribution level. This category refers to
measurements on hard-wired equipment such as equipment in fixed
installations, distribution boards, and circuit breakers. Other examples
are wiring, including cables, bus bars, junction boxes, switches, socket
outlets in the fixed installation, and stationary motors with permanent
connections to fixed installations.
• Installation Category IV is for measurements performed at the primary
electrical supply installation (<1,000 V). Examples include electricity
meters and measurements on primary overcurrent protection devices
and on ripple control units.
1
Installation categories, also referred to as measurement categories, are defined in electrical safety standard IEC 61010-1.
2
Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.
3
MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may
be connected to the MAINS for measuring purposes.
IMAQ PCI-1424 User Manual 2-4 ni.com
Installation
Caution To protect both yourself and the computer from electrical hazards, the computer
should remain off and unplugged until you finish installing the PCI-1424 device.
Chapter 2 Configuration and Installation
Install the PCI-1424 in any available PCI expansion slot in your computer.
To achieve the best noise performance, leave as much room as possible
between the PCI-1424 and other devices and hardware.
Complete the following steps to install the PCI-1424.
1. Verify that the NI-IMAQ driver software is installed on your computer.
2. Power off and unplug your computer.
3. Remove the computer cover. Make sure there are no lit LEDs on the
motherboard. If any are lit, wait until they go out before continuing
installation.
4. Touch the metal part of the power supply case inside the computer to
discharge any static electricity that might be on your clothes or body.
5. Locate the metal bracket that covers the cut-out in the back panel of
the chassis for the slot you have selected. Remove and save the
bracket-retaining screw and the bracket cover.
6. Line up the PCI-1424 card-edge connector with the expansion slot
receptacle. Using slow, evenly distributed pressure, press the PCI-1424
straight down until it seats in the expansion slot.
7. Reinstall the bracket-retaining screw to secure the PCI-1424 to the
back panel rail.
8. Visually verify the installation.
9. Replace the computer cover, and plug the computer in.
© National Instruments Corporation 2-5 IMAQ PCI-1424 User Manual
Hardware Overview
This chapter presents an overview of the hardware functions on your
IMAQ PCI-1424 device device and explains the operation of each
functional unit making up the PCI-1424.
Functional Overview
The PCI-1424 features a flexible, high-speed data path optimized for the
reception and formatting of video data from digital monochrome and color
cameras.
The block diagram in Figure 3-1 illustrates the key functional components
of the PCI-1424.
3
© National Instruments Corporation 3-1 IMAQ PCI-1424 User Manual
Chapter 3 Hardware Overview
Data
Enables
Pixel
Clock
100-Pin SCSI-Type Connector
Camera
Control
UART
Differential/
TTL
Converter
Data
Pixel Clock and Camera Enables
External Triggers
LUT
Advanced
Triggering
and Timing
Figure 3-1. PCI-1424 Block Diagram
Synchronous Dynamic RAM
Memory
Data
IMAQ SDRAM
Memory
Interface
Acquisition,
ROI, and Control
Data
RTSI Bus
PCI Interface
and
Scatter-Gather
DMA Controllers
PCI Bus
Signaling
The PCI-1424 is available in two different versions. The RS-422/TTL
version can drive and receive RS-422 and TTL-level signals. NI-IMAQ can
control these signals independently for data, control, and enable lines on
the 100-pin connector. The LVDS/TTL version, also known as EIA-644,
can drive and receive LVDS- and TTL-level signals. Benefits of LVDS
include less power consumption, longer cable lengths, less noise, and
higher clock rates.
LUTs
You can configure the PCI-1424 to use either four 8-bit or two 10-bit to
16-bit lookup tables (LUTs) to perform LUT operations such as contrast
enhancement, data inversion, gamma manipulation, or other nonlinear
transfer functions.
IMAQ PCI-1424 User Manual 3-2 ni.com
Multiple-Tap Data Formatter
Many of the digital cameras on the market send multiple channels, or
taps, of data over the cable simultaneously to increase the frame rate of the
camera. However, the data in each tap may not be transferred in the
traditional top-left to bottom-right direction. Also, the taps may not transfer
data in similar directions.
The multiple tap data formatting circuitry on the PCI-1424 can reorder the
data from up to four 8-bit taps. The data from each tap can be independently
scanned either from left-to-right or right-to-left and top-to-bottom or
bottom-to-top.
SDRAM
The PCI-1424 comes with 16 MB of onboard high-speed synchronous
dynamic RAM (SDRAM). You can purchase additional SO-DIMM
memory upgrades from National Instruments. SO-DIMM upgrades are
available in 64 MB and 128 MB densities.
The PCI-1424 can also use the onboard RAM as a first-in first-out (FIFO)
buffer so that in some instances, the PCI-1424 can capture images larger
than the amount of RAM on the device.
Chapter 3 Hardware Overview
RS-232 Serial Interface
You can use the RS-232 serial interface on the 100-pin SCSI-type
connector to control digital cameras that also have a serial interface
for camera control and configuration. The serial interface is configurable,
allowing you to customize it to your camera requirements.
Trigger Control and Mapping Circuitry
The trigger control and mapping circuitry routes, monitors, and drives the
external and RTSI bus trigger lines. You can configure each of these lines
to start an acquisition on a rising or falling edge. In addition, you can drive
each line asserted or unasserted, similar to a digital I/O line. You can also
map pulses from the high-speed timing circuitry or many of the PCI-1424
status signals to these trigger lines. There are four external and seven RTSI
bus triggers. You can program each of these triggers in polarity and
direction.
© National Instruments Corporation 3-3 IMAQ PCI-1424 User Manual
Chapter 3 Hardware Overview
High-Speed Timing
The high-speed timing circuitry on the PCI-1424, built from high-speed
counters, allows you to specify or generate precise, real-time control
signals. You can map the output of this circuitry to a trigger line to provide
accurate pulses and pulse trains.
Acquisition and ROI
The acquisition and region-of-interest (ROI) circuitry monitors the
incoming video signals and routes the active pixels to the multiple-tap data
formatter and SDRAM memory. In an ROI acquisition, you select an area
within the acquisition window to transfer to the PCI bus.
Scatter-Gather DMA Controllers
The PCI-1424 uses three independent onboard direct memory access
(DMA) controllers. The DMA controllers transfer data between the
onboard SDRAM memory buffers and the PCI bus. Each of these
controllers supports scatter-gather DMA, which allows the DMA
controller to reconfigure on-the-fly. Thus, the PCI-1424 can perform
continuous image transfers directly to either contiguous or fragmented
memory buffers.
Device Configuration NVRAM
The PCI-1424 contains onboard nonvolatile RAM (NVRAM) that
configures all registers on power-up.
Start Conditions
The PCI-1424 can start acquisitions in a variety of conditions:
• Software control—The PCI-1424 supports software control of
acquisition start. You can configure the PCI-1424 to capture a
fixed number of fields or frames. This configuration is useful for
capturing a single frame or a sequence of frames.
• Trigger control—You can start an acquisition by enabling external
or RTSI bus trigger lines. Each of these inputs can start a video
acquisition on a rising or falling edge.
IMAQ PCI-1424 User Manual 3-4 ni.com
• Delayed acquisition—You can use either software or triggers to start
acquisitions instantaneously or after skipping a specific period of time.
You can use delayed acquisition for posttrigger applications.
• Frame/field selection—With an interlaced camera and the PCI-1424 in
frame mode, you can program the PCI-1424 to start an acquisition on
any odd or even field.
Acquisition Window Control
You can configure numerous parameters on the PCI-1424 to control the
video acquisition window. A brief description of each parameter follows:
• Acquisition window—The PCI-1424 allows the user to specify a
particular region of active pixels and active lines within the incoming
video data. The active pixel region selects the starting pixel and
number of pixels to be acquired relative to the assertion edge of the
horizontal (or line) enable signal from the camera. The active line
region selects the starting line and number of lines to be acquired
relative to the assertion edge of the vertical (or frame) enable signal.
• Region of interest—The PCI-1424 uses a second level of active pixel
and active line regions for selecting a region of interest. When you
disable the region-of-interest circuitry, the device stores the entire
acquisition window in onboard or system memory. However, when
you enable the region-of-interest circuitry, the device acquires only
a selected subset of the image frame.
• Interlaced video—The PCI-1424 supports both interlaced and
non-interlaced, or progressive scan, digital video signals. In
interlaced mode, the PCI-1424 combines the odd and even fields
into one contiguous frame for analysis. In non-interlaced mode,
each field is treated as an independent frame.
Chapter 3 Hardware Overview
© National Instruments Corporation 3-5 IMAQ PCI-1424 User Manual
Signal Connections
This chapter describes cable connections for the IMAQ PCI-1424 device.
I/O Connector
The PCI-1424 100-pin SCSI-type connector connects to all digital video
data inputs, digital enable inputs, camera control outputs, RS-232 serial
interface, and the external trigger signals. To access these connections, you
can build your own custom cable or use one of the optional cables from
National Instruments.
Note Refer to the National Instruments Web site, ni.com/imaq, for the latest
information on optional cables and the cameras they support.
Figure 4-1 shows the pinout of the 100-pin SCSI-type connector.
4
© National Instruments Corporation 4-1 IMAQ PCI-1424 User Manual
Chapter 4 Signal Connections
Data0+ Data16+
Data0– Data16–
Data1+ Data17+
Data1– Data17–
Data2+ Data18+
Data2– Data18–
Data3+ Data19+
Data3– Data19–
Data4+ Data20+
Data4– Data20–
Data5+ Data21+
Data5– Data21–
Data6+ Data22+
Data6– Data22–
Data7+ Data23+
Data7– Data23–
Data8+ Data24+
Data8– Data24–
Data9+ Data25+
Data9– Data25–
Data10+ Data26+
Data10– Data26–
Data11+ Data27+
Data11– Data27–
Data12+ Data28+
Data12– Data28–
Data13+ Data29+
Data13– Data29–
Data14+ Data30+
Data14– Data30–
Data15+ Data31+
Data15– Data31–
Control0+ RI (RS-232)
Control0– DTR (RS-232)
Control1+ DSR (RS-232)
Control1– RTS (RS-232)
Control2+ CTS (RS-232)
Control2– DCD (RS-232)
Control3+ Reserved
Control3– Reserved
EnableA+ Reserved
EnableA– Reserved
EnableB+ SOUT (RS-232)
EnableB– SIN (RS-232)
EnableC+ External Trigger0
EnableC– External Trigger1
EnableD+ External Trigger2
EnableD– External Trigger3
Pixel Clock + GND
Pixel Clock – GND
151
252
353
454
555
656
757
858
959
10 60
11 61
12 62
13 63
14 64
15 65
16 66
17 67
18 68
19 69
20 70
21 71
22 72
23 73
24 74
25 75
26 76
27 77
28 78
29 79
30 80
31 81
32 82
33 83
34 84
35 85
36 86
37 87
38 88
39 89
40 90
41 91
42 92
43 93
44 94
45 95
46 96
47 97
48 98
49 99
50 100
Figure 4-1. PCI-1424 Pin Assignments
IMAQ PCI-1424 User Manual 4-2 ni.com
Chapter 4 Signal Connections
Signal Description
Table 4-1 describes each signal connection on the 100-pin SCSI connector.
Table 4-1. I/O Connector Signals
Signal Name Description
Data<31..0>± Data<31..0>± allows you to connect data up to 32 bits wide in either TTL
or differential format to the PCI-1424.
Control<3..0>± You can use the control lines on the PCI-1424 to control digital camera
features and timing information. Either TTL or differential signals can be
generated on these lines to perform such functions as generating integration
or shutter pulses to the digital cameras.
Enable<D..A>± The PCI-1424 can receive any combination of up to four enable signals.
These signals can be either TTL or differential. Examples of camera signals
which might be connected to these pins are frame enable, line enable, even
enable and odd enable. If your camera has a separate field signal, that line
should be connected to Enable C.
SOUT Serial Data Out is used for RS-232 connections.
SIN Serial Data In is used for RS-232 connections.
RI Ring Indicator is used for RS-232 connections.
DTR Data Terminal Ready is used for RS-232 connections.
DSR Data Set Ready is used for RS-232 connections.
RTS Request to Send is used for RS-232 connections.
CTS Clear to Send is used for RS-232 connections.
DCD Data Carrier Detect is used for RS-232 connections.
External
Trigger<3..0>
Pixel Clock± The PCI-1424 uses the Pixel Clock input as a reference clock to latch the
GND GND is a direct connection to digital ground on the PCI-1424.
© National Instruments Corporation 4-3 IMAQ PCI-1424 User Manual
External Trigger<3..0> are TTL I/O lines used to start an acquisition or output
to control external events. You can program the triggers to be rising or falling
edge sensitive. You can also program the triggers to be programmatically
asserted or unasserted similar to the function of a digital I/O line or to contain
internal status signals (by using the onboard events) or specific pulse widths.
incoming video data in either TTL or differential format.
Specifications
This appendix lists the specifications of the IMAQ PCI-1424 device.
These specifications are typical at 25 °C, unless otherwise stated.
External Connections
Number of external trigger I/O lines...... 4
Trigger input
Voltage range.................................. 0 to 5 V (TTL)
Polarity............................................ Programmable,
Trigger output
Voltage range.................................. 0 to 5 V (TTL)
Polarity............................................ Programmable,
A
Input high voltage.................... 2.0 V
Input low voltage ..................... 0.8 V
active-high or active-low
Output high voltage ................. 2.4 V at 15 mA source
Output low voltage .................. 0.55 V at 10 mA sink
active-high or active-low
Power-on state........................................ Input (high-impedance)
10 KΩ pull-up to 5 V
PCI-1424 RS-422/TTL
Pixel clock
Signaling type ................................. Configurable, RS-422 or TTL
Polarity............................................ Configurable, rising or falling
edge
Enable
Signal type ...................................... Configurable, RS-422 or TTL
Polarity............................................ Configurable, active-high or
active-low
© National Instruments Corporation A-1 IMAQ PCI-1424 User Manual
Appendix A Specifications
Control
Signal type .......................................Configurable, RS-422 or TTL
Polarity ............................................Configurable, active-high or
active-low
Minimum control signal pulse width ......20 ns
Video data signal type ............................Configurable, RS-422 or TTL
PCI-1424 LVDS/TTL
Pixel clock
Signaling type..................................Configurable, LVDS or TTL
Polarity ............................................Configurable, rising or falling
edge
Enable
Signal type .......................................Configurable, LVDS or TTL
Polarity ............................................Configurable, active-high or
active-low
Memory
Clocks
Control
Signal type .......................................Configurable, LVDS or TTL
Polarity ............................................Configurable, active-high or
active-low
Minimum control signal pulse width ......20 ns
Video data signal type ............................Configurable, LVDS or TTL
Onboard memory....................................16 MB SDRAM
LUTs.......................................................Four 8-bit; two 10-bit to 16-bit
Note SO-DIMM memory upgrades are available in 64 MB and 128 MB densities.
Pixel clock frequency range....................20 KHz to 50 MHz
IMAQ PCI-1424 User Manual A-2 ni.com
PCI Interface
Serial Interface
Appendix A Specifications
Theoretical max PCI bandwidth ............ 133 MB/s
Signaling standard..................................RS-232
Baud rates supported.............................. Configurable; 300, 600, 1200,
1800, 2000, 2400, 3600, 4800,
7200, or 9600 bps; 19.2, 38.4, or
56 kbps
Data bits ................................................. Configurable; 5, 6, 7, or 8 bits
Parity ...................................................... Configurable; odd, even, or
disabled
Stop bit ................................................... Configurable; enabled or disabled
Data transmit ready polarity................... Configurable; active-high or
active-low
Ready-to-send polarity........................... Configurable; active-high or
active-low
Power Requirements
Voltage ................................................... + 5 V (2.135 A)
+12 V (250 mA)
–12 V (100 mA)
Physical
Dimensions............................................. 106.68 cm × 312 cm
(4.2 in. × 12.283 in.)
Weight.................................................... 1.1 kg (0.5 lb)
Environment
The PCI-1424 device is intended for indoor use only.
Operating temperature............................ 0 to 55 °C
Storage temperature ............................... –20 to 70 °C
Maximum altitude .................................. 2,000 m
© National Instruments Corporation A-3 IMAQ PCI-1424 User Manual
Appendix A Specifications
Pollution Degree .....................................2
Relative humidity ...................................5% to 90%, noncondensing
Safety
The IMAQ 1428 meets the requirements of the following standards
of safety for electrical equipment for measurement, control, and laboratory
use:
• IEC 61010-1, EN 61010-1
• UL 61010-1
• CAN/CSA C22.2 No. 61010-1
Note For UL and other safety certifications, refer to the product label, or visit
ni.com/certification, search by model number or product line, and click the
appropriate link in the Certification column.
Electromagnetic Compatibility
Emissions................................................EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Immunity ................................................EN 61326:1997 + A2:2001,
Table 1
EMC/EMI ...............................................CE, C-Tick, and FCC Part 15
(Class A) Compliant
Note For EMC compliance, operate this device with shielded cabling.
CE Compliance
The IMAQ PCI-1424 device meets the essential requirements of applicable
European Directives, as amended for CE marking, as follows:
Low-Voltage Directive (safety)..............73/23/EEC
Electromagnetic Compatibility
Directive (EMC) .....................................89/336/EEC
Note Refer to the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, visit
ni.com/certification, search by model number or product line, and click the
appropriate link in the Certification column.
IMAQ PCI-1424 User Manual A-4 ni.com
Technical Support and
Professional Services
Visit the following sections of the National Instruments Web site at
ni.com for technical support and professional services:
• Support—Online technical support resources at
include the following:
– Self-Help Resources—For answers and solutions, visit the
award-winning National Instruments Web site for software drivers
and updates, a searchable KnowledgeBase, product manuals,
step-by-step troubleshooting wizards, thousands of example
programs, tutorials, application notes, instrument drivers, and
so on.
– Free Technical Support—All registered users receive free Basic
Service, which includes access to hundreds of Application
Engineers worldwide in the NI Developer Exchange at
ni.com/exchange. National Instruments Application Engineers
make sure every question receives an answer.
For information about other technical support options in your
area, go to
ni.com/contact.
• Training and Certification—Visit
self-paced training, eLearning virtual classrooms, interactive CDs,
and Certification program information. You also can register for
instructor-led, hands-on courses at locations around the world.
• System Integration—If you have time constraints, limited in-house
technical resources, or other project challenges, National Instruments
Alliance Partner members can help. To learn more, call your local
NI office or visit
• Declaration of Conformity (DoC)—A DoC is our claim of
compliance with the Council of the European Communities using
the manufacturer’s declaration of conformity. This system affords
the user protection for electronic compatibility (EMC) and product
safety. You can obtain the DoC for your product by visiting
ni.com/certification.
ni.com/services or contact your local branch at
ni.com/alliance.
B
ni.com/support
ni.com/training for
© National Instruments Corporation B-1 IMAQ PCI-1424 User Manual
Appendix B Technical Support and Professional Services
• Calibration Certificate—If your product supports calibration,
you can obtain the calibration certificate for your product at
ni.com/calibration.
If you searched
ni.com and could not find the answers you need, contact
your local office or NI corporate headquarters. Phone numbers for our
worldwide offices are listed at the front of this manual. You also can visit
the Worldwide Offices section of
ni.com/niglobal to access the branch
office Web sites, which provide up-to-date contact information, support
phone numbers, email addresses, and current events.
IMAQ PCI-1424 User Manual B-2 ni.com
Glossary
A
acquisition window The image size specific to a video standard or camera resolution.
active line region The region of lines actively being stored. Defined by a line start (relative to
the vertical synchronization signal) and a line count.
active pixel region The region of pixels actively being stored. Defined by a pixel start (relative
to the horizontal synchronization signal) and a pixel count.
address Value that identifies a specific location (or series of locations) in memory.
API Application programming interface.
area A rectangular portion of an acquisition window or frame that is controlled
and defined by software.
ASIC Application-Specific Integrated Circuit. A proprietary semiconductor
component designed and manufactured to perform a set of specific
functions for specific customer needs.
B
buffer Temporary storage for acquired data.
bus A group of conductors that interconnect individual circuitry in a computer,
such as the PCI bus; typically the expansion vehicle to which I/O or other
devices are connected.
D
DAQ Data acquisition. (1) Collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and inputting them to a
computer for processing. (2) Collecting and measuring the same kinds of
electrical signals with A/D or DIO devices plugged into a computer, and
possibly generating control signals with D/A and/or DIO devices in the
same computer.
© National Instruments Corporation G-1 IMAQ PCI-1424 User Manual
Glossary
DMA Direct memory access. A method by which data can be transferred to and
from computer memory from and to a device or memory on the bus while
the processor does something else; DMA is the fastest method of
transferring data to/from computer memory.
driver Software that controls a specific hardware device, such as an image
acquisition device.
E
external trigger A voltage pulse from an external source that triggers an event such as
A/D conversion.
F
field For an interlaced video signal, a field is half the number of horizontal lines
needed to represent a frame of video. The first field of a frame contains all
the odd-numbered lines, the second field contains all of the even-numbered
lines.
FIFO First-in first-out memory buffer. The first data stored is the first data sent
to the acceptor; FIFOs are used on IMAQ devices to temporarily store
incoming data until that data can be retrieved.
frame A complete image. In interlaced formats, a frame is composed of two fields.
G
gamma The nonlinear change in the difference between the video signal’s
brightness level and the voltage level needed to produce that brightness.
I
interlaced A video frame composed of two interleaved fields. The number of lines in
a field are half the number of lines in an interlaced frame.
IMAQ PCI-1424 User Manual G-2 ni.com
Glossary
L
LUT Look-up table. Table containing values used to transform the gray-level
values of an image. For each gray-level value in the image, the
corresponding new value is obtained from the look-up table.
M
memory buffer See buffer.
N
NI-IMAQ Driver software for National Instruments IMAQ hardware.
NVRAM Nonvolatile RAM. RAM that is not erased when a device loses power or is
turned off.
P
PCI Peripheral Component Interconnect. A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. PCI
offers a theoretical maximum transfer rate of 133 Mbytes/s.
pixel Picture element. The smallest division that makes up the video scan line;
for display on a computer monitor, a pixel’s optimum dimension is square
(aspect ratio of 1:1, or the width equal to the height).
pixel clock Divides the incoming horizontal video line into pixels.
R
real time A property of an event or system in which data is processed as it is acquired
instead of being accumulated and processed at a later time.
ribbon cable A flat cable in which the conductors are side by side.
ROI Region of interest. An area of the image from a window displaying the
image.
© National Instruments Corporation G-3 IMAQ PCI-1424 User Manual
Glossary
S
scatter-gather DMA A type of DMA that allows the DMA controller to reconfigure on-the-fly.
SDRAM Synchronous dynamic RAM.
SO-DIMM Small outline dual inline memory module.
T
tap A stream of pixels from a camera. Some cameras send multiple streams,
or taps, of data over a cable simultaneously to increase transfer rate.
transfer rate The rate, measured in bytes/s, at which data is moved from source to
destination after software initialization and set up operations. The
maximum rate at which the hardware can operate.
trigger Any event that causes or starts some form of data capture.
trigger control and
mapping circuitry
TTL Transistor-transistor logic.
Circuitry that routes, monitors, and drives external and RTSI bus trigger
lines. You can configure each of these lines to start or stop acquisition on
a rising or falling edge.
V
VI Virtual Instrument. (1) A combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument. (2) A LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program.
IMAQ PCI-1424 User Manual G-4 ni.com
Index
A
acquisition and region-of-interest (ROI)
circuitry, 3-4
acquisition start conditions, 3-4
acquisition window control
active pixel region (acquisition
window), 3-5
interlaced video, 3-5
region of interest, 3-5
application software, Vision Development
Module, 1-3
B
block diagram of IMAQ PCI-1424, 3-2
C
calibration certificate (NI resources), B-2
clock signals, Pixel Clock± signal (table), 4-3
clocks, specifications, A-2
Control<3..0>± signal (table), 4-3
conventions used in the manual, v
CTS signal (table), 4-3
D
data formatter, multiple-tap, 3-3
Data<31..0>± signal (table), 4-3
DCD signal (table), 4-3
Declaration of Conformity (NI resources), B-1
delayed acquisition start conditions, 3-5
diagnostic tools (NI resources), B-1
DMA controllers, 3-4
documentation
conventions used in the manual, v
NI resources, B-1
drivers (NI resources), B-1
DSR signal (table), 4-3
DTR signal (table), 4-3
E
Enable<D..A>± signal (table), 4-3
environment specifications, A-3
equipment, optional, 2-2
examples (NI resources), B-1
external connection specifications, A-1
External Trigger<3..0>± signal (table), 4-3
F
frame/field selection, 3-5
G
GND signal (table), 4-3
H
hardware overview
acquisition and ROI, 3-4
acquisition window control, 3-5
block diagram, 3-2
board configuration NVRAM, 3-4
high-speed timing, 3-4
LUTs, 3-2
multiple-tap data formatter, 3-3
RS-232 serial interface, 3-3
scatter-gather DMA controllers, 3-4
SDRAM, 3-3
start conditions, 3-4
trigger control and mapping circuitry, 3-3
help, technical support, B-1
high-speed timing circuitry, 3-4
© National Instruments Corporation I-1 IMAQ PCI-1424 User Manual
Index
I
I/O connector
overview, 4-1
pin assignments (figure), 4-2
signal description (table), 4-3
IMAQ PCI-1424
block diagram, 3-2
devices, safety information, 2-3
optional equipment, 2-2
overview and features, 1-1
requirements for getting started, 2-1
installation
procedure, 2-5
unpacking the PCI-1424, 2-2
instrument drivers (NI resources), B-1
integration with DAQ and motion control, 1-4
interlaced video, 3-5
K
KnowledgeBase, B-1
L
LabVIEW, Vision Builder AI, 1-3
LUTs (lookup tables), 3-2
M
mapping circuitry, 3-3
memory
board configuration NVRAM, 3-4
SDRAM, 3-3
motion control, integrating with, 1-4
multiple-tap data formatter, 3-3
N
National Instruments support and
services, B-1
NI-IMAQ driver software, 1-2
NVRAM, 3-4
O
optional equipment, 2-2
P
PCI interface specifications, A-3
PCI-1424 devices
software programming choices, 1-2
National Instruments IMAQ
Vision, 1-3
NI-IMAQ driver software, 1-2
unpacking, 2-2
physical specifications, A-3
Pixel Clock± signal (table), 4-3
power requirements, A-3
programming examples (NI resources), B-1
R
RAM
board configuration NVRAM, 3-4
SDRAM, 3-3
region of interest, in acquisition window
control, 3-5
region-of-interest (ROI) circuitry, 3-4
requirements for getting started, 2-1
RI signal (table), 4-3
RS-232 serial interface, 3-3
RTS signal (table), 4-3
S
safety
information, 2-3
specifications, A-4
scatter-gather DMA controllers, 3-4
SDRAM, 3-3
IMAQ PCI-1424 User Manual I-2 ni.com
Index
serial interface (RS-232), 3-3
signal connections
I/O connector
overview, 4-1
pin assignments (figure), 4-2
signal description (table), 4-3
SIN signal (table), 4-3
software
NI resources, B-1
programming choices
National Instruments IMAQ
Vision, 1-3
NI-IMAQ driver software, 1-2
Vision Development Module, 1-3
software-controlled start conditions, 3-4
SOUT signal (table), 4-3
specifications
clocks, A-2
environment, A-3
external connections, A-1
PCI interface, A-3
physical, A-3
power requirements, A-3
safety, A-4
start conditions
delayed acquisition, 3-5
frame/field selection, 3-5
software control, 3-4
trigger control, 3-4
support, technical, B-1
T
technical support, B-1
training and certification (NI resources), B-1
trigger control and mapping circuitry, 3-3
trigger controlled start conditions, 3-4
troubleshooting (NI resources), B-1
W
Web resources, B-1
© National Instruments Corporation I-3 IMAQ PCI-1424 User Manual
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