Instruction/ maintenance manual of the product NI 781xR National Instruments
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Reconfigurable I/O NI 781 x R User Manual Reconfigurable I/O Devices for PCI and PXI/CompactPCI Bus Computers NI 781 x R User Manual June 2006 371089D-01.
Support Worldwide Technical Support and Product Info rmation ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Aust in, Texas 78759-3504 USA Tel: 512 683 0100 Worldwide O.
Important Information Warranty The NI 781 x R is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by r eceipts or other documentation. National In struments will, at its option, repair or replac e equipment that proves to be defective during the warranty period.
Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless co mmunications from inte rference. The FCC places digital electronics into two classes.
© National Instruments Corpor ation v NI 781x R User Manual Contents About This Manual Conventions ............ .............. .............. .............. .............. .............. ............... .............. .... v ii Reconfigurable I/O Documentation .
Contents NI 781x R User Manual vi ni.com Appendix B Connecting I/O Signals Appendix C Using the SCB-68 Shie lded Connector Block Appendix D Technical Support and Professional Services Glossary.
© National Instruments Corpor ation vii NI 781x R User Manual About This Manual This manual describes the electrical and mechanical aspects of the National Instruments 781 x R devices, and contains information about programming and using t he devices.
About This Manual NI 781x R User Manual viii ni.com monospace T ext in this font denotes text or ch aracters that you should ent er from the keyboard, sections of code, programming examples, and syntax examples.
About This Manual © National Instruments Corpor ation ix NI 781x R User Manual Related Documentation The following documents contain information you may find helpful: • PICMG CompactPCI 2.0 R3.0 • PXI Hardware Specifica tion Revision 2.1 • PXI Software Specification Revision 2.
© National Instruments Corpor ation 1-1 NI 781x R User Manual 1 Introduction This chapter describes the NI 781 x R, the concept of the Reconfigurable I/O (RIO) device, optional software and equipm ent for using the N I 781 x R, and safety informatio n about the NI 781 x R.
Chapter 1 Introduction NI 781x R User Manual 1-2 ni.com Y ou can add additi onal I/O channels and signal conditioning usin g the CompactRIO R Series Expansion Chassis and CompactRIO I/O modules. Refer to Appendix A, Specifications , for detailed NI 781 x R specifications.
Chapter 1 Introduction © National Instruments Corpor ation 1-3 NI 781x R User Manual Over view of Reconfigurable I/O This section explains reconfigurable I/O and describes how to use the LabVIEW FPGA Module to build high-level functions in hardware.
Chapter 1 Introduction NI 781x R User Manual 1-4 ni.com reconfigure the de vice in another application for fou r independent timed loops with separate I/O resources. User -Defined I/O Resources You can create your own custom m easurements using the fixed I/O resources.
Chapter 1 Introduction © National Instruments Corpor ation 1-5 NI 781x R User Manual Software accesses the R Series device through the bus interf ace. The FPGA connects the bus interf ace and the fix ed I/O to make possible timing, triggeri ng, processing , and custom I/O measurements using the LabVIEW FPGA Module.
Chapter 1 Introduction NI 781x R User Manual 1-6 ni.com and functions to control the I/O, timi ng, and logic of the R Series device and generate interrupts for synch ronization.
Chapter 1 Introduction © National Instruments Corpor ation 1-7 NI 781x R User Manual Cables and Optional Equipment National Instruments offers a v ariety of product s you can use with R Series devices, including cables, connector bloc ks, and other accessories listed in Table 1-2.
Chapter 1 Introduction NI 781x R User Manual 1-8 ni.com Safety Information The following section contains important safety info rmation that you must follow when installi ng and using the NI 781 x R. Do not operate the NI 781 x R in a manner not specifi ed in this document.
Chapter 1 Introduction © National Instruments Corpor ation 1-9 NI 781x R User Manual Operate the NI 781 x R at or below the measurement category 1 li sted in the Environmental section of Append ix A, Specifications .
© National Instruments Corpor ation 2-1 NI 781x R User Manual 2 Hardware Over view of the NI 781 x R This chapter presents an overview of the hardware functions and I/O connectors on the NI 781 x R. Figure 2-1 shows a block diagram for the NI 781 x R.
Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-2 ni.com NI 7811R Over view The NI 7811R has 160 bidirectional DIO lines and a one million gate FPGA. NI 7813R Over view The NI 7813R has 160 bidirectional DIO lines and a three million gate FPGA.
Chapte r 2 Hardware Ov erview of the N I 781x R © National Instruments Corpor ation 2-3 NI 781x R User Manual Caution Exceeding the maximum input voltag e ratings listed in T able B-2, NI 7 81x R I/O Signal Summa ry , can damage the NI 781 x R and the computer .
Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-4 ni.com Figure 2-2 shows DIO<0..3> conf igured for digital input and DIO<4.
Chapte r 2 Hardware Ov erview of the N I 781x R © National Instruments Corpor ation 2-5 NI 781x R User Manual lines are labeled R TSI/TRIG<0..6> and R TSI/OSC.
Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-6 ni.com Caution Do not driv e the same PXI local bus line with the NI PXI-781 x R and another device simultaneously . Such signal dri ving can damage both devices. NI is not liable for any damage resulting from such signal driving.
Chapte r 2 Hardware Ov erview of the N I 781x R © National Instruments Corpor ation 2-7 NI 781x R User Manual Figure 2-3. Switch Location on the NI PXI-781 x R NI PXI- 7811R Reconfigurable I/O CONNEC.
Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-8 ni.com Figure 2-4. Switch Location on the NI PCI-781 x R Figure 2-5. Switch Settings SW1, SW2, SW3 123 ON a.
Chapte r 2 Hardware Ov erview of the N I 781x R © National Instruments Corpor ation 2-9 NI 781x R User Manual Complete the following steps to pr e vent a VI stored in flash memory from loading to the FPGA: 1. Power of f and unplug the PC or the PXI/CompactPCI chassis.
© National Instruments Corpor ation A-1 NI 781x R User Manual A Specifications This appendix lists the specifications of the NI 781 x R. These specifications are typical at 25 °C unless otherwise noted. Digital I/O Number of channels ........ ......
Appendix A Specifications NI 781x R User Manual A-2 ni.com Reconfigurable FPGA Number of logic slices NI 7811R ......... ............................ ....5,120 NI 7813R ............ .............. ...............14,336 Equivalent number of logic cells NI 7811R .
Appendix A Specifications © National Instruments Corpor ation A-3 NI 781x R User Manual Power Requirement +5 VDC (±5%) NI 7811R ............ .............. ............... 9 mA (t yp ), 50 mA (max) 1 NI 7813R ............ .............. ............
Appendix A Specifications NI 781x R User Manual A-4 ni.com Environmental Operating Environment The NI 781 x R is intended for indoor use only. Ambient temperature range ........... .........0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2 Relative humidity range.
Appendix A Specifications © National Instruments Corpor ation A-5 NI 781x R User Manual Safety The NI 781 x R is designed to meet the requiremen ts of the following standards of safety for electrical e quipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 61010-1, CAN/CSA-C22.
© National Instruments Corpor ation B-1 NI 781x R User Manual B Connecting I/O Signals This appendix describes how to make input and output signal connections to the NI 781 x R I/O connectors. The NI 781 x R has four DIO connectors w ith 40 DIO li nes per connector .
Appendix B Connecting I/O Signals NI 781x R User Manual B-2 ni.com Figure B-1. NI 781 x R Connector Locations 1 Connector Ove rlay for the NI PXI-781 x 2 Connector Overlay for the NI PCI-781 x CONNECT.
Appendix B Connecting I/O Signals © National Instruments Corpor ation B-3 NI 781x R User Manual Figure B -2 shows the I/O connector pin assignments for the I/O connectors on the NI 781 x R.
Appendix B Connecting I/O Signals NI 781x R User Manual B-4 ni.com end of the cable into the appropriate I/O connector and connect the other end of the cable to the appropriate signal accessory . Caution Connections that exceed any of the maximum ratings of input or outpu t signals on the NI 781 x R can damage the NI 781 x R and the computer .
Appendix B Connecting I/O Signals © National Instruments Corpor ation B-5 NI 781x R User Manual Connecting to SSR Signal Conditioning NI provides cables that allow you to connect signals from the NI 781 x R directly to SSR backpl anes for digital signal condit ioning.
Appendix B Connecting I/O Signals NI 781x R User Manual B-6 ni.com Figure B-3. Connector Pinouts for Use with the NSC68-5050 Cable 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 5.
© National Instruments Corpor ation C-1 NI 781x R User Manual C Using the SCB-68 Shielded Connector Block This appendix describes how to connect input and output signals to the NI 781 x R with the SCB-68 shie lded connector block. The SCB-68 has 68 screw terminals for I/O signal connections.
© National Instruments Corpor ation D-1 NI 781x R User Manual D T echnical Support and Professional Ser vices Visit the following sections of the National Instruments Web site at ni.com for technical support an d professional services: • Support —Online technical support resources at ni.
Appendix D T echni cal Support and Profess ional Ser vices NI 781x R User Manual D-2 ni.com • Calibration Certificate —If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration . If you searched ni.
© National Instruments Corporation G-1 NI 781 x R User Manual Glossar y Symbol Pref ix V alue pp i c o 1 0 –1 2 µ micro 10 –6 m milli 10 –3 Mm e g a 1 0 6 A A Amperes. ASIC Applicat ion-Specific Integrated Circuit—A proprietary semiconductor component designed and manufactur ed to perform a set of specific functions.
Glossary NI 781 x R User Manual G-2 © National Instruments Corporation CMRR Common-mode rejection ratio—A meas ure of an instrument’ s abilit y to reject interference from a common -mode signal, usually expressed in decibels (dB).
Glossary © National Instruments Corporation G-3 NI 781 x R User Manual E EEPR OM Electrically erasable programmabl e read-only memory—R OM that can be erased with an electrical signal and reprogrammed.
Glossary NI 781 x R User Manual G-4 © National Instruments Corporation M m Meter . max Maximum. MIMO Multiple inpu t, multiple ou tput. min Minimum. MIO Multifunction I/O. monotonicity A characteristic of a DA C in whic h the analog output always increases as the values of the digital code input to it increase.
Glossary © National Instruments Corporation G-5 NI 781 x R User Manual P PCI Peripheral Component Interconn ect—A high-performance expansion bus architecture originally de veloped b y Intel to replace ISA and EISA. It is achieving widespread acceptance as a st andard for PCs and workstations.
Glossary NI 781 x R User Manual G-6 © National Instruments Corporation S s Seconds. S Samples. S/s Samples per second—Used to e xpr ess the rate at which a D A Q board samples an analog signal. signal conditioning The manipulation o f signals to prepare them for digitizing.
Glossary © National Instruments Corporation G-7 NI 781 x R User Manual V OH V olts, output high. V OL V olts, output low . V rms V olts, root mean square.
An important point after buying a device National Instruments NI 781xR (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 NI 781xR 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 NI 781xR - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments NI 781xR you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments NI 781xR will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments NI 781xR, 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 NI 781xR.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments NI 781xR. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments NI 781xR 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
