background image

©

 National Instruments Corporation

1-1

IMAQ PCI-1426 User Manual

1

Introduction

This chapter provides an overview of the IMAQ PCI-1426 image 
acquisition device, the Camera Link standard, Camera Link and 
IMAQ 1426 interfacing guidelines, and your software programming 
choices.

About the IMAQ 1426

The IMAQ 1426 is a highly flexible image acquisition (IMAQ) device that 
supports a diverse range of Camera Link-compatible cameras from various 
camera companies. The IMAQ 1426 acquires digital images in real time 
and stores the images in onboard frame memory or transfers them directly 
to system memory. Featuring a high-speed data flow path, the IMAQ 1426 
is ideal for both industrial and scientific environments.

The IMAQ 1426 is easy to install and configure. It ships with NI-IMAQ, 
the National Instruments complete IMAQ driver software you can use to 
directly control the IMAQ 1426 and other National Instruments IMAQ 
hardware products. With NI-IMAQ, you can quickly and easily start your 
applications without having to program the device at the register level.

The IMAQ 1426 supports the Camera Link Base configuration. The 
MDR 26-pin connector provides access to base configuration cameras. For 
further configuration information, refer to the 

Camera Link and IMAQ 

1426

 section of Chapter 3, 

Hardware Overview

.

The 15-pin D-SUB connector has four external TTL input/output (I/O) 
lines you can use as triggers or as high-speed digital I/O lines. Should you 
choose not to use the TTL I/O lines, the 15-pin D-SUB connector also 
provides access to two optically isolated inputs and two RS-422 inputs. 
These inputs can be individually selected in software.

For more advanced digital or analog system triggering or digital I/O lines, 
you can use the IMAQ 1426 and NI-IMAQ with the National Instruments 
data acquisition (DAQ) or motion control product lines.

Содержание IMAQ PCI-1426

Страница 1: ...IMAQ TM IMAQ PCI 1426 User Manual Base Configuration Camera Link Image Acquisition Device IMAQ PCI 1426 User Manual November 2004 374040A 01...

Страница 2: ...1190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway...

Страница 3: ...s installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties...

Страница 4: ...t of Communications DOC Changes or modifications not expressly approved by NI could void the user s authority to operate the equipment under the FCC Rules Class A Federal Communications Commission Thi...

Страница 5: ...lect 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 k...

Страница 6: ...allation What You Need to Get Started 2 1 Optional Equipment 2 2 Unpacking 2 2 Safety Information 2 3 Installation 2 4 Configuring the IMAQ 1426 2 5 Interfacing with the IMAQ 1426 2 5 Chapter 3 Hardwa...

Страница 7: ...ions 3 7 Serial Interface 3 8 Chapter 4 Signal Connections Connectors 4 1 MDR 26 Pin Connector 4 2 15 pin D SUB Connector 4 2 Connector Signal Connection Descriptions 4 3 Appendix A Cabling Appendix B...

Страница 8: ...ver software you can use to directly control the IMAQ 1426 and other National Instruments IMAQ hardware products With NI IMAQ you can quickly and easily start your applications without having to progr...

Страница 9: ...rs manual for more detailed information about Camera Link specifications This manual is available on several Web sites including the Automated Imaging Association site at www machinevisiononline org O...

Страница 10: ...le shot image acquisition memory buffer allocation trigger control and device configuration you can call from the application development environment ADE NI IMAQ handles many of the complex issues bet...

Страница 11: ...inspection to LabVIEW extending the capabilities of the applications if necessary Vision Development Module NI Vision Development Module which consists of IMAQ Vision and NI Vision Assistant is an im...

Страница 12: ...eate LabVIEW VI diagrams that perform the prototype you created in Vision Assistant You can then use LabVIEW to add functionality to the generated VI Integration with DAQ Platforms that support NI IMA...

Страница 13: ...e IMAQ 1426 What You Need to Get Started You need the following items to set up and use the IMAQ 1426 Getting Started with IMAQ for Windows 2000 NT XP NI IMAQ for Windows 2000 NT XP and documentation...

Страница 14: ...ion about these products Unpacking The IMAQ 1426 ships in an antistatic package to prevent electrostatic discharge from damaging device components To avoid such damage in handling the device take the...

Страница 15: ...ith hazardous voltages 30 Vrms 42 4 Vpk or 60 Vdc it may require a safety earth ground connection wire Refer to the device specifications for maximum voltage ratings Because of the danger of introduci...

Страница 16: ...uctions and warnings Caution The IMAQ 1426 is a sensitive electronic device shipped in an antistatic bag Open only at an approved workstation and observe precautions for handling electrostatic sensiti...

Страница 17: ...a control parameters such as frame on demand and exposure control signals are also defined by the camera manufacturer These variable parameters are defined on a per camera basis in a camera file camer...

Страница 18: ...s Camera Advisor at ni com camera When installing new camera files save them to the Data folder located at Program Files National Instruments NI IMAQ Data Contact National Instruments technical suppor...

Страница 19: ...ng and formatting video data from Camera Link cameras Figure 3 1 illustrates the key functional components of the IMAQ 1426 Figure 3 1 IMAQ 1426 Block Diagram Data MDR 26 Pin Connector Channel Link Re...

Страница 20: ...e precise timing signals for controlling digital camera acquisition Base configuration includes the following bit allocations 8 bit 1 2 and 3 taps channels 10 bit 1 and 2 taps 12 bit 1 and 2 taps 14 b...

Страница 21: ...setting all image pixels that fall within the threshold interval to the image white value and setting all other image pixels to 0 Pixels inside the threshold interval are considered part of the partic...

Страница 22: ...O buffer to ensure a complete acquisition Even when the data rate from the camera exceeds PCI throughput you can acquire without interruption until the onboard RAM is full Trigger Control and Mapping...

Страница 23: ...aution Do not apply a voltage greater than 30 VDC to the isolated inputs Voltage greater than 30 VDC may damage the IMAQ 1426 Note Isolated inputs are compatible with 5 V logic if the external circuit...

Страница 24: ...frequency and duration of these signals in easy to use units The IMAQ 1426 also allows you to route the external trigger inputs 0 3 onto the camera control lines 1 4 Use MAX to select the source for t...

Страница 25: ...es 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...

Страница 26: ...e commands are sent to the camera clsercon exe Use the National Instruments terminal emulator for Camera Link clsercon exe if a camera file with preprogrammed serial commands does not exist for your c...

Страница 27: ...ns This chapter describes the MDR 26 pin connector and the 15 pin D SUB connector on the IMAQ PCI 1426 device Connectors Figure 4 1 shows the connectors on the IMAQ 1426 device Figure 4 1 IMAQ 1426 Co...

Страница 28: ...ions Figure 4 2 MDR 26 Pin Connector Assignments 15 pin D SUB Connector The 15 pin D SUB connector connects to general purpose digital I O The general purpose digital I O available on this connector i...

Страница 29: ...nal triggers DIO lines I O DGND A direct connection to digital GND on the IMAQ 1426 ISO_IN 1 0 30 V isolated input only lines Use these lines instead of not in addition to TTL_TRIG 1 0 RS422_IN 1 0 RS...

Страница 30: ...Four LVDS pairs defined as camera inputs and acquisition device outputs reserved for camera control On some cameras the camera controls allow the acquisition device to control exposure time and frame...

Страница 31: ...ines should be twisted together with a wire connected to DGND Isolated input and RS 422 input lines should be twisted together in their proper pairs Refer to the Connectors section of Chapter 4 Signal...

Страница 32: ...from the National Instruments Web site at ni com catalog Camera Link cables are available in 1 to 10 m lengths from the 3M Web site at www 3m com Refer to Figure A 2 for 3M part number information Fig...

Страница 33: ...Instruments Application Engineers make sure every question receives an answer For information about other technical support options in your area visit ni com services or contact your local office at n...

Страница 34: ...om 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...

Страница 35: ...ion 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...

Страница 36: ...sferring data to from computer memory F 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...

Страница 37: ...where each pixel in the color image is encoded using 32 bits eight bits for red eight bits for green eight bits for blue and eight bits for the alpha value unused ROI Region of interest A hardware pro...

Страница 38: ...trigger lines You can configure each of these lines to start or stop acquisition on a rising or falling edge TTL Transistor transistor logic V VI Virtual Instrument 1 A combination of hardware and or...

Страница 39: ...scription A 1 ordering information A 2 overview 1 2 CC 4 1 signal table 4 4 clock signals XCLK signal table 4 3 configuration Camera Link Base configuration 3 2 configuring the IMAQ 1426 2 5 installat...

Страница 40: ...nector See connectors IMAQ 1426 Camera Link 1 2 configuration 2 5 installation 2 4 interfacing with 2 5 optional equipment 2 2 overview and features 1 1 requirements for getting started 2 1 software p...

Страница 41: ...D SUB connector 4 2 IMAQ 1426 connectors figure 4 1 MDR 26 pin connector 4 2 signal descriptions 4 3 software NI resources B 1 software controlled start conditions 3 7 software programming choices 1...

Отзывы: