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National Instruments 6527 Bedienungsanleitung

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Inhaltsverzeichnis der Gebrauchsanleitungen

  • Seite 1

    DAQ 6527 User Manual Isolated Digital I/O Interface for PCI, PXI , and CompactPCI 652 7 User Manual ™ August 2000 Edition Part Number 322164 B-01[...]

  • Seite 2

    Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Offices Australia 03 9879 5166, Austria 0662 45 79 90 0, Belgium 02 757 00 20, Brazil 011 284 5011, Canada (Calgary) 403 274 9391, Canada (Ontario) 905 785 0085,[...]

  • Seite 3

    Important Information Warranty The PCI-6527 and PXI-6527 devices are 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.[...]

  • Seite 4

    © National Instruments Corporatio n v 6527 User Manual Contents About This Manual How To Use the Manual Set ............ ............ ........... .............. ........... ............ .............. .... vii Conventions ............ ........... .............. ............ ........... .............. ........... ............ .............. .... v [...]

  • Seite 5

    Contents 6527 User Manual vi ni.com Output Channels .................... .............. ............ .............. ........... .............. ......... 3-10 Overcurrent Protection .......... .............. ............ .............. ........... .............. ......... 3-12 Power-on and Power-off Conditions.................... ............ ......[...]

  • Seite 6

    © National Instruments Corporatio n vii 6527 User Manual About This Manual This manual describes the electrical and mechanical aspects of the 652 7 devices, and contains information concerning their operation and programming. How T o Use the Manual Set The 6527 User Manual is one piece of the d ocumentation set for your data acquisition system. Y [...]

  • Seite 7

    About This Man ual 6527 User Manual viii ni.com Conventions The following con ventions appear in thi s manual: < > Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name — for e xample, DIG+0.<3..0>. ♦ The ♦ symbol indicates t hat the text follo win g it applie[...]

  • Seite 8

    © National Instruments Corporatio n 1-1 6527 User Manual 1 Getting Started with Y our 6527 This chapter describes the 6527 devices, l ists what you need to get started, software programming choices, and optional equipment, describes custom cabling options, and explains how to unpack your board. About the 6527 Device Thank you for purchasing a Nati[...]

  • Seite 9

    Chapter 1 Getting Started with Y our 6527 6527 User Manual 1-2 ni.com Using PXI with CompactPCI Using PXI-compatible products with standard Co mpactPCI products is an important feature provided b y the PXI Specifi cation , Revision 1.0. I f you use a PXI-compatible plug-in device in a standard Co mpactPCI chassis, you will be unable to use PXI-sp e[...]

  • Seite 10

    Chapter 1 Getting Started with Y our 6527 © National Instruments Corporatio n 1-3 6527 User Manual Software Programming Choices There are several options to choose from when programm ing your National Instruments DAQ hardware. You can use LabVIEW, LabWindows/CVI, Visual C ++, or Visual Basic with the NI-DAQ driver software. National Instruments Ap[...]

  • Seite 11

    Chapter 1 Getting Started with Y our 6527 6527 User Manual 1-4 ni.com Figure 1-1. The Relationship between the Programming Environment, NI-DAQ, and Y our Hardware Optional Equipment National Instruments offers a variety of accessories to use with your 6527 device, such as: • Cables and cable assemblies, shielded and ribbon • Connector blocks, u[...]

  • Seite 12

    Chapter 1 Getting Started with Y our 6527 © National Instruments Corporatio n 1-5 6527 User Manual Custom Cabling National Instruments offers cables and accessories for you to prototype your application o r to use if you freq uently change board interconnect ions. If you want to de velop your own cable, note that the 6527 de vice uses a 100-pin fe[...]

  • Seite 13

    Chapter 1 Getting Started with Y our 6527 6527 User Manual 1-6 ni.com Unpacking Your 6527 device is shipped in an antistatic package to prevent elect rostatic damage to the board. Electrostatic di scharge can damage several components on the board. To avoid such damage in handli ng the board, take the following precautions: • Ground yourself via [...]

  • Seite 14

    © National Instruments Corporatio n 2-1 6527 User Manual 2 Installing and Configuring the 6527 This chapter describes how to install and configure your 6527 de vice. Installing Software This section describes how to install your software. Note Install your software before you install your 6527 d e vi ce. If you are using NI-DA Q, refer to your NI-[...]

  • Seite 15

    Chapter 2 Installing and Configuring the 6527 6527 User Manual 2-2 ni.com ♦ PCI-6527 To install a PCI-6527 in any available 5 V PCI expansion slot in your computer: 1. T urn off and unplug your computer . 2. Remov e the top cover or access p ort to the expansion slots. 3. Make sure there are no lighted LEDs on y our motherboard. If any are lit, w[...]

  • Seite 16

    Chapter 2 Installing and Configuring the 6527 © National Instruments Corporatio n 2-3 6527 User Manual Y our 6527 is now i nstalled. Y ou are no w ready to configure your hardware and software. Configuring the 6527 Your 6527 device is completely s oftware configurable, and you do not need to perform any configuration steps after the system powers [...]

  • Seite 17

    © National Instruments Corporatio n 3-1 6527 User Manual 3 Making Signal Connections This chapter describes the pin arrangement, signal names, and signal connections on y our 6527 device. Caution Connections that exceed an y of the maximum ratings of input or output signals on your 6527 device can damage the board and your computer . Pay careful a[...]

  • Seite 18

    Chapter 3 Making Signal Connections 6527 User Manual 3-2 ni.com Note For input ports, connect the higher voltage to the DIG+ pin and the lower v oltage to the DIG – pin. For output ports, you can connect signals to the two pins of each line without regard to which v olt age is higher . The output lines consist of solid-state relays and act as bid[...]

  • Seite 19

    Chapter 3 Making Signal Connections © National Instruments Corporatio n 3-3 6527 User Manual Cable Assembly Connectors The optional R1005050 cable assembly you can u se with the 6527 device is an assembly of two 50-pin cables and thr ee connectors. Both cables are joined to a single conn ector on one end and to individ ual connectors on the free e[...]

  • Seite 20

    Chapter 3 Making Signal Connections 6527 User Manual 3-4 ni.com Figur e 3-2. Cable-Assembly Connector Pinout for the R1005050 Ribbon Cable +5 V DIG+0.0 DIG+0.1 DIG+0.2 DIG+0.3 DIG+0.4 DIG+0.5 DIG+0.6 DIG+0.7 DIG+1.0 DIG+1.1 DIG+1.2 DIG+1.3 DIG+1.4 DIG+1.5 DIG+1.6 DIG+1.7 DIG+2.0 DIG+2.1 DIG+2.2 DIG+2.3 DIG+2.4 DIG+2.5 DIG+2.6 DIG+2.7 GND DIG – 0.[...]

  • Seite 21

    Chapter 3 Making Signal Connections © National Instruments Corporatio n 3-5 6527 User Manual I/O Connector Signal Descriptions Table 3-2. Signal Descriptions for 6527 I/O Connector Pins Pin Signal Name Descripti on 33, 35, 37, 39, 41, 43, 45, 47 DIG+0.<7..0> Isolated input port 0, positive terminals — T ake measurements at these terminals.[...]

  • Seite 22

    Chapter 3 Making Signal Connections 6527 User Manual 3-6 ni.com Power Connections Four of the pins on the I/O co nnector are not isolated. Pin 50 and pin 100 connect to GND, the computer ground reference. Pin 49 and pin 99 of the I/O connector supply +5 V from the computer power supply via a self-resetting fuse. The fuse resets automatically wi thi[...]

  • Seite 23

    Chapter 3 Making Signal Connections © National Instruments Corporatio n 3-7 6527 User Manual Isolation V oltages The positive and negative (DIG+ and DIG – ) terminals of each channel are isolated from the other input and out put channels, from the +5 V and GND pins, and from the com puter power supply . Isolation barriers provide isolation up to[...]

  • Seite 24

    Chapter 3 Making Signal Connections 6527 User Manual 3-8 ni.com Sensing DC V oltages When you apply a DC voltage of at least 2 V across the t wo input terminals, the 6527 device registers a logic hi gh for that input. If no voltage is present (a voltage difference of 1 V or less), the 6527 device registers a logic lo w for that input. DC voltages b[...]

  • Seite 25

    Chapter 3 Making Signal Connections © National Instruments Corporatio n 3-9 6527 User Manual Reducing the For ward Current for High V oltages As input voltage increases above 5 V, th e input current drawn by th e 6527 (forward current I f ) also rises. At 24 V, for example, current per line is found by the following equ ation: If you wish to reduc[...]

  • Seite 26

    Chapter 3 Making Signal Connections 6527 User Manual 3-10 ni.com Solid-State Relay Outputs On a 6527 device, I/O connect or pins 51 through 9 8, shown in Figure 3-1, represent the terminals of the solid -state relays. Output Channels The output channels of a 6527 device are solid-stat e relays containing an LED and two MOSFETs connected together to[...]

  • Seite 27

    Chapter 3 Making Signal Connections © National Instruments Corporation 3-11 6527 User Manual Writing a 0 (logic low) to an output bit closes the relay , and writing a 1 (logic high) opens the relay . T o both sink and source current with one channel requ ires an external resistor . Y ou can use the solid-state relays of a 6527 device with e xterna[...]

  • Seite 28

    Chapter 3 Making Signal Connections 6527 User Manual 3-12 ni.com The following equation sho ws th e minimum sink current when V OUT is 0.5 V : Figure 3-6. Signal Connections for Driving TTL V oltages The maximum power ratings for the outpu t channels on a 6527 device are as follo ws: Overcurrent Protection The 6527 device outputs include circuitry [...]

  • Seite 29

    Chapter 3 Making Signal Connections © National Instruments Corporation 3-13 6527 User Manual The ov ercurrent protection ratin gs for a 6527 de v ice are as follows ( t y p i c a la t2 5 ° C): • Overcurrent protection limit = 260 mA • Current limit time = 1 µs at 7 V • Duration of current abov e operat ing current (120 mA): 1 s max at 7 V [...]

  • Seite 30

    © National Instruments Corporatio n 4-1 6527 User Manual 4 Using the 6527 This chapter contains a functional overvie w of the 6527 device, explains the operation of each functional unit, and describes the digital filter and change detection opti ons. Functional Over view The block diagram in Figure 4-1 illu strates the key functional componen ts o[...]

  • Seite 31

    Chapter 4 Using the 6527 6527 User Manual 4-2 ni.com Figure 4-1. 6527 Block Diagram PCI Interface Circuitr y Your 6527 board uses the PCI MITE ASIC, designed by National Instruments specifically for data acquisition, to communicate with the PCI bus. The PCI MITE is ful ly compliant wit h PCI Local Bu s Specification 2.0 . Po r t 0 Isolation Po r t [...]

  • Seite 32

    Chapter 4 Using th e 6527 © National Instruments Corporatio n 4-3 6527 User Manual Digital I/O Circuitr y You can use your 6527 board as follows: • Output ports – Write – Read back • Input ports – Read – Apply digital filtering (software programmable) – Change detection on selected lines (software programmable) T able 3-1, Port Funct[...]

  • Seite 33

    Chapter 4 Us ing the 6527 6527 Use r Manual 4-4 ni.com The f ilt er operates on the inputs from the optocou p lers. The op tocouplers turn on faster than they turn of f , passing rising edges faster th an falling edges. The optocouplers can ther efore add up to 100 µ s to a high pu lse or subtract up to 100 µ s fro m a lo w pulse (a 100 µ s chan[...]

  • Seite 34

    Chapter 4 Using th e 6527 © National Instruments Corporatio n 4-5 6527 User Manual Figure 4-2. Digital Filter T iming Change Notification You can program the 6527 to notify you of changes on input lines. Ch ange notification can reduce the num ber of reads your software must perform t o monitor inputs. Instead of reading the input s continuously, [...]

  • Seite 35

    Chapter 4 Using the 6527 6527 User Manual 4-6 ni.com • Bit 1 is connected to a limit sensor; the 6527 detects rising edg es on the sensor , which corresp ond to ov er-limit conditions. • Bit 0 is connected to a switch. Y our software can react to any switch closure, represented by a f alling edge. If the switch closure is noisy , you should als[...]

  • Seite 36

    © National Instruments Corporatio n A- 1 6527 User Manual A Specifications This appendix lists t he specifications for the 652 7 devices. These specifications are typical at 25 ° C unless otherwise noted. Digital I/O PCI/PXI-6527....................... .................. 24 optically-isolated digital input channels and 24 solid-state relay output[...]

  • Seite 37

    Appendix A Specifications 6527 User Manual A-2 ni.com Max switching v oltage AC............ ...................... ..................30 V RMS (42 V peak) DC............ ...................... ..................60 VDC Max switching capacity ...................... .... 120 mA 1 Common-mode isolation ......... ...............60 VDC 30 V RMS (42 V peak[...]

  • Seite 38

    Appendix A Specifications © National Instruments Corporatio n A- 3 6527 User Manual Physical Dimensions (not including co nnectors) PCI-652 7 ............... ...................... .... 17.5 × 10.7 cm (6.9 × 4.2 in.) PXI-652 7 .................. ....................... 1 6 × 10 cm (6.3 × 3.9 in.) I/O connector..................... ............[...]

  • Seite 39

    © National Instruments Corporatio n B- 1 6527 User Manual B T echnical Support Resources W eb Support National Instruments W eb support is your first stop for help in solving installation, configuration, and application pro blems and questions. O nline problem-solving and di agnostic resources include frequ ently asked questions, knowledge bases, [...]

  • Seite 40

    Appendix B T echnical Support R esources 6527 User Manual B-2 ni.com W orldwide Support National Instruments has of fices located around the world to help address your support needs. Y ou can access our branch off ice W eb sites from the W orldwide Of fices section of ni.com . Branch off ice W eb sites provide up-to-date contact information, suppor[...]

  • Seite 41

    © National Instruments Corporatio n G-1 6527 User Manual Glossar y Pref ix Meanings V alue n- nano- 10 – 9 µ -m i c r o - 1 0 – 6 m- milli- 10 – 3 k- kilo- 10 3 Numbers/Symbols ° degrees – negati ve of, or minus Ω ohms /p e r % percent ± plus or minus + positiv e of, or pl us +5 V +5 V olts signal A A amperes A C alternating current A[...]

  • Seite 42

    Glossary 6527 User Manual G-2 ni.com C CC e l s i u s CA T I installation cate g ory (ov ervoltage category) I — equipment for which measures are taken to limit tra nsient ov ervoltages to an appropriate low le vel. Examples include signal-lev el, telecommunications, and electronic equipment with transient o vervoltages smaller than local-le vel [...]

  • Seite 43

    Glossary © National Instruments Corporatio n G-3 6527 User Manual I I/O input/output in. inches isolation signal conditioning to break g round loops and reject high comm on-mode v oltages to protect equipment and users and to ensure accurate measurements L LED light-emitting dio de M m meters max maximum MOSFET metal-oxide semicond uctor field-ef [...]

  • Seite 44

    Glossary 6527 User Manual G-4 ni.com S s seconds T TTL transistor-transistor logic, or 5 V digital voltage le vels originally used with transisto r-transis tor logic V V volts V cc supply voltage; for example, the voltage a computer supplies to it s plug-in de vices VDC v olts direct current VI virtual instrument — a combi nation of hardware and/[...]

  • Seite 45

    © National Instruments Corporatio n I-1 6527 User Manual Index Numbers +5 V signal description (table), 3-5 power connections, 3-6 6527 devices block diagram, 4-2 change notification, 4-5 to 4-6 custom cabling, 1-5 digital filtering, 4 -3 to 4-5 features, 1-1 functional overview, 4-1 to 4-3 optional equip ment, 1-4 requirements for getting started[...]

  • Seite 46

    Index 6527 User Manual I-2 ni.com E environment specifications, A-3 equipment, op tional, 1-4 F filtering. See digital f iltering. forward current for high voltages, reducing, 3-9 fuse, self-resetting, 3-6 G GND signal description (table), 3-5 power connections, 3-6 H hardware installation, 2-1 to 2-2 I input channels, 3-7 inputs, optical ly isolat[...]

  • Seite 47

    Index © National Instruments Corporatio n I-3 6527 User Manual power connections, 3-6 power rating, 3-6 power requirement specifications, A-2 power-on and power-off conditio ns, 3-13 PXI, using with Com pactPCI, 1-2 R R1005050 cable assembly. See cable assembly connectors. reducing forward curren t for high voltages, 3-9 relay outputs. See solid-s[...]