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.
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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...
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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.
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.
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,...
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...
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.
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.
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.
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.
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...
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.
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.
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>.
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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.
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...
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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.
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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.
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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.
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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.
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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...