National Instruments Interface Device NI PCI-1426 User Manual
National Instruments Interface Device NI PCI-1426 User Manual

National Instruments Interface Device NI PCI-1426 User Manual

Base configuration camera link image acquisition device

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NI Vision
NI PCI-1426 User Manual
Base Configuration Camera Link Image Acquisition Device
NI PCI-1426 User Manual
February 2007
374040C-01

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Summary of Contents for National Instruments Interface Device NI PCI-1426

  • Page 1 NI Vision NI PCI-1426 User Manual Base Configuration Camera Link Image Acquisition Device NI PCI-1426 User Manual February 2007 374040C-01...
  • Page 2 For further support information, refer to the Technical Support and Professional Services appendix. To comment on National Instruments documentation, refer to the National Instruments Web site at ni.com/info and enter the info code feedback. © 2004–2007 National Instruments Corporation. All rights reserved.
  • Page 3: Important Information

    Instruments Corporation. National Instruments respects the intellectual property of others, and we ask our users to do the same. NI software is protected by copyright and other intellectual property laws. Where NI software may be used to reproduce software or other materials belonging to others, you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction.
  • Page 4 These classes are known as Class A (for use in industrial-commercial locations only) or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products. Depending on where it is operated, this Class A product could be subject to restrictions in the FCC rules. (In Canada, the Department of Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.) Digital...
  • Page 5 Conventions The following conventions are used in this manual: <> Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name—for example, AO <3..0>. This icon denotes a note, which alerts you to important information. bold Bold text denotes items that you must select or click in the software, such as menu items and dialog box options.
  • Page 6: Table Of Contents

    Contents Chapter 1 Introduction Software Overview ...1-2 NI-IMAQ Driver Software ...1-2 National Instruments Application Software ...1-2 Vision Builder for Automated Inspection...1-3 Vision Development Module ...1-3 Integration with DAQ and Motion ...1-4 Camera Link ...1-4 Overview ...1-4 Chapter 2 Hardware Overview Functional Overview...2-1...
  • Page 7 Contents Appendix A Cabling Appendix B Technical Support and Professional Services Glossary Index NI PCI-1426 User Manual viii ni.com...
  • Page 8: Introduction

    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 NI 1426 and NI-IMAQ with the National Instruments data acquisition (DAQ) or motion control product lines.
  • Page 9: Software Overview

    NI-IMAQ performs all functions required for acquiring and saving images but does not perform image analysis. Refer to the National Instruments Application Software section for image analysis functionality. NI-IMAQ is also the interface between the NI 1426 and LabVIEW,...
  • Page 10: Vision Builder For Automated Inspection

    This Builder file provides a guide you can use for developing applications in any ADE, such as LabWindows/CVI or Visual Basic, using the Vision Assistant machine vision and image processing libraries. Using the © National Instruments Corporation Pattern matching Particle analysis...
  • Page 11: Integration With Daq And Motion

    Integration with DAQ and Motion Platforms that support NI-IMAQ also support NI-DAQ and a variety of National Instruments DAQ devices. This allows integration between image acquisition devices and National Instruments DAQ devices. Use National Instruments high-performance stepper and servo motion...
  • Page 12: Hardware Overview

    Pixel Clock and Camera Enables Receiver Pixel Clock Camera Control Serial Differential Control Converter External Triggers © National Instruments Corporation Synchronous Dynamic RAM Data SDRAM Interface Advanced Acquisition, Timing ROI, and Triggering UART RTSI Bus Figure 2-1. NI 1426 Block Diagram...
  • Page 13: Camera Link And The Ni 1426

    Chapter 2 Hardware Overview Camera Link and the NI 1426 The NI 1426 supports the Camera Link Base configuration. Base Configuration The Camera Link Base configuration places 24 data bits and four enable signals (Frame Valid, Line Valid, Data Valid, and a spare) on a single Channel Link part and cable.
  • Page 14: Hardware Binarization

    0, while all pixels outside the threshold interval, or the background region, are set to the image white value. Figure 2-2 illustrates binarization and inverse binarization. © National Instruments Corporation NORMAL Sampled Data Figure 2-2.
  • Page 15: Multiple-Tap Data Formatter

    Individually configure the four external triggers in Measurement and Automation Explorer (MAX), the National Instruments Configuration utility, as single-ended I/O lines or, alternatively, as isolated or RS-422 input only lines. You can configure the four external triggers in any combination of single-ended I/O or input only lines.
  • Page 16: Wiring An Isolated Input To Output Devices

    Isolated inputs are compatible with 5 V logic if the external circuit meets the voltage and current requirements listed in Getting Started with the NI PCI-1426. Figure 2-3. Example of Connecting an Isolated Input to a Sourcing Output Device © National Instruments Corporation Table 2-1. Trigger Configuration Options for the NI 1426 Single-ended...
  • Page 17: Connecting To A Quadrature Encoder

    Chapter 2 Hardware Overview Figure 2-4. Example of Connecting an Isolated Input to a Sinking Output Device Connecting to a Quadrature Encoder The NI 1426 accepts differential (RS-422) line driver inputs. Shielded encoder cables are recommended for all applications. Unshielded cables are more susceptible to noise and can corrupt the encoder signals.
  • Page 18: High-Speed Timing

    • Note You can use MAX to set the acquisition window on the NI 1426. © National Instruments Corporation Acquisition window—The NI 1426 allows the user to specify a particular region of active pixels and active lines within the incoming video data.
  • Page 19: Scatter-Gather Dma Controllers

    Bus Master PCI Interface The NI 1426 implements the PCI interface with a National Instruments custom application-specific integrated circuit (ASIC), the PCI miniMITE. The PCI interface can transfer data at a theoretical maximum rate of 133 MB/s in bus master mode.
  • Page 20: Serial Interface

    NI 1426 serial port and are not required for most users. National Instruments also fully supports the recommended serial API described in the Specifications of the Camera Link Interface Standard for Digital Cameras and Frame Grabbers manual. This manual is available on several websites, including the Automated Image Association Web site at www.machinevisiononline.org...
  • Page 21: Signal Connections

    Signal Connections Figure 3-1 shows the connectors on the front panel of the NI 1426. 1 MDR 26-Pin Connector © National Instruments Corporation 2 15-Pin D-SUB Connector Figure 3-1. NI 1426 Connectors NI PCI-1426 User Manual...
  • Page 22: Connectors

    Chapter 3 Signal Connections Connectors This section describes the MDR 26-pin connector and the 15-pin D-SUB connector on the NI 1426. MDR 26-Pin Connector The MDR 26-pin connector provides reliable high-frequency transfer rates between the camera and the acquisition device. To access this connector, use a 3M Camera Link cable.
  • Page 23: 15-Pin D-Sub Connector

    I/O available on this connector includes four TTL I/O lines, two optically isolated input lines, and two RS-422 input lines. National Instruments provides a generic 15-pin cable assembly kit (part number 190912-04) that breaks the connector out into 15 color-coded wires for easy connectivity.
  • Page 24: Connector Signal Connection Descriptions

    Chapter 3 Signal Connections Connector Signal Connection Descriptions Table 3-1 describes the MDR 26-pin and 15-pin D-SUB signal connections. Signal Name TTL_TRIG<3..0> TTL external triggers/DIO lines (I/O). DGND Direct connection to digital GND on the NI 1426. ISO_IN<1..0>± 30 V isolated input only lines. Use these lines instead of, not in addition to, TTL_TRIG<1..0>.
  • Page 25 National Instruments provides a generic 15-pin cable assembly kit (part number 190912-04) that breaks the connector out into 15 color-coded wires for easy connectivity. Visit the National Instruments Web site at ni.com/catalog If you decide to build a custom cable, National Instruments recommends that you use twisted pair wiring to help reduce noise pickup from outside sources and crosstalk.
  • Page 26: Ordering Information

    Camera Link cables are manufactured by 3M corporation and are available from both National Instruments and 3M. Two-meter Camera Link cables (part number 187676-02) are available from the National Instruments Web site at Link cables are available in 1 to 10 m lengths from the 3M Web site at www.3m.com...
  • Page 27 Technical Support and Professional Services Visit the following sections of the National Instruments Web site at ni.com • • • • © National Instruments Corporation for technical support and professional services: Support—Online technical support resources at include the following: –...
  • Page 28 Appendix B Technical Support and Professional Services • If you searched 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 office Web sites, which provide up-to-date contact information, support phone numbers, email addresses, and current events.
  • Page 29 Interface standard for digital video data and camera control based on the Channel Link chipset. Channel Link National Semiconductor chipset for high-speed data serialization and deserialization for transmission across cables up to 10 m. © National Instruments Corporation NI PCI-1426 User Manual...
  • Page 30 LVDS Low Voltage Differential Signaling (EIA-644). NI-IMAQ Driver software for National Instruments Vision hardware. 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.
  • Page 31 Region of interest. A hardware-programmable rectangular portion of the acquisition window. RTSI bus Real-Time System Integration Bus. The National Instruments timing bus that connects image acquisition and DAQ devices directly, by means of connectors on the devices, for precise synchronization of functions.
  • Page 32 Glossary 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.
  • Page 33 A-1 ordering information, A-2 overview, 1-4 CC<4..1>± signal (table), 3-4 clock signals, XCLK± signal (table), 3-4 © National Instruments Corporation configuration, Camera Link Base configuration, 2-2 connectors 15-pin D-SUB connector, 3-3 I/O connector signals (table), 3-4 MDR 26-pin connector (figure), 3-2...
  • Page 34 1-2 support and services, B-1 NI 1426 Camera Link, 1-4 software programming choices, 1-2 integration with DAQ, 1-4 National Instruments application software, 1-2 NI Vision Builder for Automated Inspection, 1-3 NI Vision Development Module, 1-3 NI-IMAQ driver software, 1-2...
  • Page 35 NI-IMAQ driver software, 1-2 start conditions delayed acquisition, 2-8 software control, 2-8 trigger control, 2-8 support, technical, B-1 © National Instruments Corporation technical support, B-1 timing circuitry, high-speed, 2-7 training and certification (NI resources), B-1 trigger configuration options (table), 2-5...

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