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NI PCIe-1427, Руководство пользователя

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Chapter 1

Introduction

©

 National Instruments Corporation

1-3

NI PCIe-1427 User Manual

four LVDS (EIA-644) data streams and an LVDS clock, providing 
high-speed data transmission across 10 wires and over distances of up 
to 10 m.

Software Overview

Programming the NI 1427 requires the NI-IMAQ driver software for 
controlling the hardware. National Instruments also offers the following 
application software packages for analyzing and processing your acquired 
images. 

•

NI Vision Builder for Automated Inspection

—Allows you to 

configure solutions to common inspection tasks.

•

NI Vision Development Module

—Provides customized control over 

hardware and algorithms.

The following sections provide an overview of the driver and application 
software. For detailed information about individual software packages, 
refer to the documentation specific to each software package.

NI-IMAQ Driver Software

The NI 1427 ships with NI Vision Acquisition Software, which includes 
the NI-IMAQ driver software. NI-IMAQ has an extensive library of 
functions—such as routines for video configuration, continuous and single 
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 
between the computer and the image acquisition device, such as 
programming interrupts and camera control.

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 also provides the interface between the NI 1427 and LabVIEW, 
LabWindows

™

/CVI

™

, or a text-based programming environment. The 

NI-IMAQ software kit includes a series of libraries for image acquisition 
for LabVIEW, LabWindows/CVI, and Measurement Studio, which 
contains libraries for Microsoft Visual Basic.

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 

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание PCIe-1427

Страница 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Страница 2: ...1427 User Manual Base Configuration Camera Link Image Acquisition Device NI PCIe 1427 User Manual September 2006 371816A 01 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE w...

Страница 3: ...Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7 095 783 68 51 Singapore...

Страница 4: ...ormation retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation National Instruments respects the intellectual property of others and...

Страница 5: ...ns not expressly approved by NI could void the user s authority to operate the equipment under the FCC Rules Class A Federal Communications Commission This equipment has been tested and found to compl...

Страница 6: ...x options italic Italic text denotes variables emphasis a cross reference or an introduction to a key concept Italic text also denotes text that is a placeholder for a word or value that you must supp...

Страница 7: ...guration 2 2 Data Transmission 2 2 Hardware Binarization 2 3 Multiple Tap Data Formatter 2 4 Trigger Control and Mapping Circuitry 2 4 Wiring an Isolated Input to Output Devices 2 5 Connecting to a Qu...

Страница 8: ...CIe 1427 User Manual viii ni com Appendix A Cabling Appendix B Technical Support and Professional Services Glossary Index Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www...

Страница 9: ...register level Refer to Getting Started with the NI PCIe 1427 for information about installing the NI 1427 Camera files configure the NI 1427 with information about the output format of your camera Ca...

Страница 10: ...to the Specifications section of Getting Started with the NI PCIe 1427 for detailed specifications of the NI 1427 Camera Link This section provides a brief overview of the Camera Link standard Refer...

Страница 11: ...nsive library of functions such as routines for video configuration continuous and single shot image acquisition memory buffer allocation trigger control and device configuration you can call from the...

Страница 12: ...r AI you can perform powerful visual inspection tasks and make decisions based on the results of individual tasks You also can migrate the configured inspection to LabVIEW extending the capabilities o...

Страница 13: ...ion 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 You can then use LabV...

Страница 14: ...onal components of the NI 1427 Figure 2 1 NI 1427 Block Diagram MDR 26 Pin Connector 15 Pin DSUB Connector UART TTL I O Pixel Clock Enables Data Camera Control Advanced Timing Isolated Inputs Host Int...

Страница 15: ...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 bit 1 tap 16 bit 1 tap 24 bit RGB Data Transmissio...

Страница 16: ...hreshold interval to the image white value and setting all other image pixels to 0 Pixels inside the threshold interval are considered part of the particle region Pixels outside the threshold interval...

Страница 17: ...line to start an acquisition on a rising edge or a falling edge You also can drive each line asserted or unasserted as a digital I O line You can map pulses from the high speed timing circuitry or the...

Страница 18: ...ng thresholds and current requirements Caution Do not apply a voltage greater than 30 VDC to the isolated inputs Voltage greater than 30 VDC may damage the NI 1427 Note Isolated inputs are compatible...

Страница 19: ...al 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 Figure 2 5 shows the quadr...

Страница 20: ...ecting differential line drivers Figure 2 6 Example of Connecting Differential Line Drivers Phase A Phase A Phase B Phase B 3 3 V 26LV32 26LV32 10 k 10 k 10 k 10 k 7 5 k 7 5 k 7 5 k 7 5 k Phase A Phas...

Страница 21: ...ce the external control for cameras that support the NI 1427 has been preprogrammed into the camera file You can use MAX to specify the frequency and duration of these signals in easy to use units The...

Страница 22: ...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 ena...

Страница 23: ...000 38400 19200 9600 7200 4800 3600 2400 2000 1800 1200 600 and 300 bps You can use the serial interface interactively with MAX clsercon exe or a manufacturer supplied camera control utility or progra...

Страница 24: ...and imgSessionSerialRead functions Note clsercon exe IMAQ Serial Write IMAQ Serial Read imgSessionSerialWrite and imgSessionSerialRead are used for direct manual access of the NI 1427 serial port and...

Страница 25: ...NI 1427 This chapter also describes considerations for using the NI 1427 with the NI Camera Link I O Extension Board Connectors Figure 3 1 shows the connectors on the NI 1427 device Figure 3 1 NI 142...

Страница 26: ...0 LVDS Base configuration data and enable signals from the camera to the image acquisition device XCLK Transmission clock on the Base configuration chip for Camera Link communication between the imag...

Страница 27: ...or out into 15 color coded wires for easy connectivity Refer to the 15 Pin D SUB Cable Specifications section of Appendix A Cabling for information about ordering a cable assembly kit If you require t...

Страница 28: ...g to the NI Camera Link I O Extension Board Table 3 2 15 Pin D SUB Connector Signals Signal Name Description TTL_TRIG 3 0 TTL external triggers DIO lines I O DGND Direct connection to digital GND on t...

Страница 29: ...es should be twisted together in their proper pairs Refer to the Connectors section of Chapter 3 Signal Connections for connector pin assignments Camera Link Cables Use a standard Camera Link cable to...

Страница 30: ...uments Web site at ni com products 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 Figure A 2 3M Part Number...

Страница 31: ...ry question receives an answer For information about other technical support options in your area visit ni com services or contact your local office at ni com contact Training and Certification Visit...

Страница 32: ...d 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 O...

Страница 33: ...gramming interface area A rectangular portion of an acquisition window or frame that is controlled and defined by software B buffer Temporary storage for acquired data bus A group of conductors that i...

Страница 34: ...nd 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 F frame grabber A device that digitizes an image and...

Страница 35: ...d from the device Once overhead is accounted for a x1 link can provide up to 200 MB s of input capability and 200 MB s of output capability Increasing the number of lanes in a link increases maximum t...

Страница 36: ...serial digital data interchange standard utilizing individual differential signal pairs for data transmission in each direction Depending on data transmission rates RS 422 can be used at distances to...

Страница 37: ...top acquisition on a rising or falling edge TTL Transistor transistor logic V VI Virtual Instrument 1 A combination of hardware and or software elements typically used with a PC that has the functiona...

Страница 38: ...ectors 15 pin D SUB connector 3 3 I O connector signals table 3 2 3 4 MDR 26 pin connector figure 3 2 NI 1427 connectors figure 3 1 signal description table 2 5 3 2 3 4 conventions used in manual vi D...

Страница 39: ...nal Instruments application software 1 4 National Instruments support and services B 1 NI 1427 Camera Link 1 2 overview and features 1 1 software programming choices 1 3 integration with DAQ 1 5 Natio...

Страница 40: ...uilder for Automated Inspection 1 4 NI Vision Development Module 1 4 NI IMAQ driver software 1 3 support technical B 1 T technical support B 1 timing circuitry high speed 2 8 training and certificatio...

Страница 41: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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