Instruction/ maintenance manual of the product DAQ 6527 National Instruments
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DAQ 6527 User Manual Isolated Digital I/O Interface for PCI, PXI, and CompactPCI 652 7 User Manual December 1999 Edition Part Number 3221 64A-01.
Worldwide Technical Support and Product Info rmation www.ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Office.
Important Information Warranty The 6527 device is warranted against defect s in materi als and workmanshi p for a period of one year from the date of shipment , a s evidenced by receipts or other documentation. Nat ional Instruments will, at its option, repair or replace equipment that proves to be defective durin g the warranty period .
© National Instruments Corporation v 6527 User Manual Contents About This Manual How To Use the Manual Set ............ ............ ........... .............. ........... ............ ........... ....... ix Conventions ............ ........... .....
Contents 6527 User Manual vi www.ni.com Solid-State Relay Outputs ...................... .............. ........... ............ ........... .............. ......... 3-9 Output Channels .................... ... ... ........... ... ........... ... ....
Contents © National Instruments Corporation vii 6527 User Manual Tables Table 3-1. Port Functionality for 6 527 Devices ..................................................... 3-3 Table 3-2. Signal Descriptions for 6527 Devic e I/O Connectors .........
© National Instruments Corporation ix 6527 User Manual About This Manual This manual describes the electrical and mechanical aspects of the 652 7 de vices, and contains information concerning their operation and programming. Unless otherwise noted, the text applies to all de vices in the 652 7 family , which includes the PCI-6527 and PXI-6527.
About This Manual 6527 User Manual x www.ni.com Conventions The follo wing con ventions appear in this manual: < > Angle brackets that contain numbers separated b y an ellipsis represent a range of v alues associated with a bit or signal name—for example, DIG+0.
© National Instruments Corporation 1-1 6527 User Manual 1 Introduction This chapter describes the 652 7 devices; lists what you need to get started, software programming choices, and optional equipment; describes custom cabling options; and explains how to unpack your board.
Chapter 1 Introduction 6527 User Manual 1-2 www .ni.com Using PXI with CompactPCI Using PXI-compatible products with standard CompactPCI products is an important feature provided by the PXI Specification , Revision 1.
Chapter 1 Introduction © National Instruments Corporation 1-3 6527 User Manual Unpacking Your 6527 device is shipped in an antistatic package to prevent electrostatic damage to the board. Electrostatic discharge can damage several components on the board.
Chapter 1 Introduction 6527 User Manual 1-4 www .ni.com ComponentW orks contains to ols for data acquisitio n and instrument control bu ilt on NI-D A Q driv er software. ComponentW orks provides a higher-le vel programming interface for b uilding virtual instruments through standard OLE controls and DLLs.
Chapter 1 Introduction © National Instruments Corporation 1-5 6527 User Manual Figure 1-1. The Relationship between the Programming Environment, NI-DAQ, and Y our Hardware Optional Equipment National.
Chapter 1 Introduction 6527 User Manual 1-6 www .ni.com Custom Cabling National Instruments offers cables and accessories for you to prototype your application or to use if yo u frequently change board interconnections. If you want to de velop your own cable, note that the 6527 de vice uses a 100-pin female cable header .
© National Instruments Corporation 2-1 6527 User Manual 2 Installation and Configuration This chapter describes how to install and configure your 65 27 device.
Chapter 2 Installation and Configuration 6527 User Manual 2-2 www .ni.com 3. Remov e the expansion slot cover on the back panel of the computer . 4. T ouch a metal part inside your computer to discharge an y static electricity that might be on your clothes or body .
© National Instruments Corporation 3-1 6527 User Manual 3 Signal Connections This chapter describes the pin arrangement, signal names, and signal connections on your 6527 device. Caution Connections that ex ceed any of the maximum ratings of input or output signals on your 6527 de vice can damage the board and your computer .
Chapter 3 Signal Connections 6527 User Manual 3-2 www .ni.com Note For input ports, connect the higher voltage to the DIG+ pin and the lo wer 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 oltage is higher .
Chapter 3 Signal Connections © National Instruments Corporation 3-3 6527 User Manual T able 3-1 shows the functionality of each port. Cable Assembly Connectors The optional R1005050 cable assembly you can use with the 6527 device is an assembly of two 50-pin cables and three connectors.
Chapter 3 Signal Connections 6527 User Manual 3-4 www .ni.com Figure 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.
Chapter 3 Signal Connections © National Instruments Corporation 3-5 6527 User Manual I/O Connector Signal Descriptions Table 3-2 lists the signal descriptions for the 6527 device I/O connector pins. Table 3-2. Signal Descriptions for 6527 Device I/O Connectors Pin Signal Name Description 33, 35, 37, 39, 41, 43, 45, 47 DIG+0.
Chapter 3 Signal Connections 6527 User Manual 3-6 www .ni.com Power Connections Four of the pins on the I/O connector are not isolated. Pin 50 and pin 100 connect to GND, the computer groun d reference. Pin 49 and pin 99 of the I/O connector supply +5 V from the computer power supply via a self-resetting fuse.
Chapter 3 Signal Connections © National Instruments Corporation 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 output channels, from the +5 V and G ND pins, and from the computer power supply .
Chapter 3 Signal Connections 6527 User Manual 3-8 www .ni.com Sensing DC V oltages When you apply a DC voltage of at least 2 V across the two in put terminals, the 6527 device registers a logic high for th at input. If no voltage is present (a voltage difference of 1 V or less), the 6527 device registers a logic low for that input.
Chapter 3 Signal Connections © National Instruments Corporation 3-9 6527 User Manual Reducing the For ward Current for High V oltages As input voltage increases above 5 V, the input current drawn by the 6527 (forward current I F ) also rises. At 24 V, for example, current is approximately (24 V – 1 .
Chapter 3 Signal Connections 6527 User Manual 3-10 www .ni.com Figure 3-5. Signal Connections for Solid-State Relays Writing a 0 (logic lo w ) 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 requires an external resistor .
Chapter 3 Signal Connections © National Instruments Corporation 3-11 6527 User Manual Figure 3 -6 shows a signal connection e xample for both sinking and sourcing current. The e xample shows a TTL-le vel application with a supply voltage of +5 V . The 6527 provides sink current when the relay is closed.
Chapter 3 Signal Connections 6527 User Manual 3-12 www .ni.com Overcurrent Protection The 6527 device outputs include circuitry to protect them from currents over the specified range. When excessive current flows through the relay, the relay increases resistance.
© National Instruments Corporation 4-1 6527 User Manual 4 Device Over view This chapter contains a functional overview of the 6527 device and explains the operation of each functional unit. The digital filter and change detection options are also described.
Chapter 4 Device Over view 6527 User Manual 4-2 www .ni.com Figure 4-1. 6527 Block Diagram PCI Interface Circuitr y Your 6527 board uses the PCI MITE ASIC to communicate with the PCI bus. The PCI MITE was designed by National Instruments specifically for data acquisition.
Chapter 4 Device Overview © National Instruments Corporation 4-3 6527 User Manual • Input ports – Read – Apply digital filtering (software programmable) – Detect changes on selected lines (software programmable) Ta b l e 3 - 1 , Port Fu nctionality for 6527 Devices , contains a summary of port functions.
Chapter 4 Device Over view 6527 User Manual 4-4 www .ni.com Y ou can enable fi ltering on as many input lines as you wish. All f iltered lines share the same timing interv al. The interv al ranges from 100 ns to 100 ms. Ho we v er , as shown in T able 4-1, an interval of 200 µs or less does not guarantee blocking of high pulses.
Chapter 4 Device Overview © National Instruments Corporation 4-5 6527 User Manual Figure 4 -2 shows a filter configuration with an 800 ns f ilter interval (400 ns filter clock).
Chapter 4 Device Over view 6527 User Manual 4-6 www .ni.com If you anticipate noisy or rapidly changing input lines, use digital filtering to reduce the changes to a manageable number; excessi v e notifications can hurt system performance.
© National Instruments Corporation A-1 6527 User Manual A Specifications This appendix lists the specif ications for the 652 7 de vices. These specifications are typical at 25 ° C unless otherwise noted. Digital I/O PCI/PXI-6527.....................
Appendix A Specifications for 6527 User Manual A-2 www .ni.com Relay Outputs Number of channels ................................ 24, each with two terminals that are isolated from other channels Relay type ............... ............................ .
Appendix A Specifications for © National Instruments Corporation A-3 6527 User Manual Physical Dimensions (not including connectors) PCI-652 7 .................. .............. ......... 17.5 × 10.7 cm (6. 9 × 4.2 in.) PXI-652 7 ...................
© National Instruments Corporation B-1 6527 User Manual B T echnical Support Resources This appendix describes the comprehensiv e resources av ailable to yo u in the T echnical Sup port section of th.
Appendix B T echnical Support Resour ces 6527 User Manual B-2 www .ni.com Software-Related Resources • Instrument Driver Network —A library with hundreds of instrument dri v ers for contro l of standalone instruments via GPIB, VXI, or serial interfaces.
© National Instruments Corporation G-1 6527 User Manual Glossar y Pref ix Meanings V alue n- nano- 10 –9 µ- micro- 10 –6 m- milli- 10 –3 k- kilo- 10 3 Numbers/Symbols ° degrees – negati ve .
Glossary 6527 User Manual G-2 www .ni.com C C Celsius CA T I installation category (o vervoltage category) I—equipment for which measures are taken to limit transient overv oltages to an appropriate lo w le vel.
Glossary © National Instruments Corporation G-3 6527 User Manual I I IH current, input high I IL current, input lo w in. inches I/O input/output I OH current, output high I OL current, output lo w is.
Glossary 6527 User Manual G-4 www .ni.com O optocoupler a de vice that transfers electrical signals b y utilizing light wav es to pro vide coupling with electrical isolation between input and output o.
Glossary © National Instruments Corporation G-5 6527 User Manual T TTL transistor-transistor logic, or 5 V digital voltage le vels originally used with transistor-transistor logic typ typical V V vol.
© National Instruments Corporation 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 custo.
Index 6527 User Manual I-2 www .ni.com E environment specifications, A-3 equipment, optional, 1-5 F filtering. See dig ital filtering. forward current for high voltages, reducing, 3-8 to 3-9 fuse, sel.
Index © National Instruments Corporation I-3 6527 User Manual power rating, 3-6 power requirement specifications, A-2 power-on and power-off conditions, 3-12 problem-solving and diagnostic resources, online, B-1 PXI, using with CompactPCI, 1-2 R R1005050 cable assembly.
An important point after buying a device National Instruments DAQ 6527 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments DAQ 6527 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments DAQ 6527 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments DAQ 6527 you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments DAQ 6527 will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments DAQ 6527, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments DAQ 6527.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments DAQ 6527. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments DAQ 6527 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
