Home

User Manual - College of Engineering, Technology, and Computer

Contents

1. 4 7 Digital I O 4 7 Scope 4 8 Appendix A Specifications Contents National Instruments Corporation vii NI ELVIS User Manual Appendix B Protection Board Fuses Appendix C Technical Support and Professional Services Glossary Index National Instruments Corporation ix NI ELVIS User Manual About This Manual Thank you for purchasing the National Instruments Educational Laboratory Virtual Instrumentation Suite NI ELVIS The NI ELVIS User Manual contains information that you need to understand and program the NI ELVIS architecture and instruments The NI ELVIS User Manual also discusses the components of an NI data acquisition DAQ system and the concept of virtual instrumentation Conventions The following conventions appear in this manual lt gt Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name for example DIO lt 3 0 gt The symbol leads you through nested menu items and dialog box options to a final action The sequence File Page Setup Options directs you to pull down the File menu select the Page Setup item and select Options from th
2. 3 1 Using the DAQ Hardware in Bypass Mode 3 1 NI ELVIS Benchtop Workstation 3 2 NI ELVIS Protection Board 3 4 NI ELVIS Prototyping Board 3 5 Prototyping Board Power 3 6 Prototyping Board Signal Descriptions 3 7 Grounding Considerations 3 9 Connecting Analog Input Signals 3 9 Generic Analog Input 3 10 Resource Conflicts 3 11 DMM 3 11 Oscilloscope 3 11 Connecting Analog Output Signals 3 12 Generic Analog Output
3. 3 12 DC Power Supplies 3 12 Function Generator FGEN 3 12 Variable Power Supplies 3 12 Connecting Digital I O Signals 3 13 Connecting Counter Timer Signals 3 13 Connecting User Configurable Signals 3 13 Chapter 4 Programming NI ELVIS Programming NI ELVIS Using NI DAQ 4 1 Analog Input 4 2 Analog Output 4 2 Timing and Control I O 4 3 Programming NI ELVIS Using the NI ELVIS LabVIEW API 4 4 Variable Power Supplies 4 5 Function Generator 4 6 Digital Multimeter
4. 3 dB Frequency modulation 5 of full scale max Impedance Analyzer Measurement frequency range 5 Hz 35 kHz Oscilloscope Refer to the Analog Input section of Appendix A Specifications in the DAQ device user manual Accuracy 12 bits or 16 bits DAQ device dependent Input impedance DAQ device dependent Maximum horizontal resolution DAQ device dependent Range 10 V Sampling rate per channel 100 kHz 500 kHz DAQ device dependent Appendix A Specifications NI ELVIS User Manual A 6 ni com Maximum input bandwidth 10 kHz 50 kHz DAQ device dependent Vertical resolution 12 bits or 16 bits DAQ device dependent Two Wire Current Voltage Analyzer Current range 10 mA Voltage sweep range 10 V Three Wire Current Voltage Analyzer1 Minimum base current increment 15 Maximum collector current 10 mA Maximum collector voltage 10 V Variable Power Supplies Positive Supply Output voltage 12 V Ripple and noise
5. 0 3 001 full scale1 Range 14 Vrms in four ranges max DC Accuracy 0 3 001 full scale max Range 20 V in four ranges max Input impedance 1 M Dynamic Signal Analyzer Input range 10 V in four ranges Input resolution 12 bits or 16 bits DAQ device dependant Function Generator Frequency range 5 Hz 250 kHz in five ranges 1 100 Hz to 10 kHz Appendix A Specifications National Instruments Corporation A 5 NI ELVIS User Manual Software controlled frequency resolution 0 8 Frequency set point accuracy 3 of range max Frequency read back accuracy 0 01 Output amplitude 2 5 V Software amplitude resolution 8 bits Offset range 5 V AM voltage 10 V max Amplitude modulation Up to 100 FM voltage 10 V max Amplitude flatness To 50 kHz 0 5 dB To 250 kHz
6. 1 1 DAQ Hardware 1 2 LabVIEW 1 3 Virtual Instrumentation 1 3 NI ELVIS Overview 1 4 Safety Information 1 5 Chapter 2 NI ELVIS Overview NI ELVIS Hardware 2 2 NI ELVIS Benchtop Workstation 2 3 NI ELVIS Prototyping Board 2 3 NI ELVIS Software 2 3 SFP Instruments 2 3 Instrument Launcher 2 4 Arbitrary Waveform Generator ARB 2 4 Bode Analyzer 2 5 Di
7. 70 dB min Range 250 mA in two ranges max Resolution 12 bits or 16 bits DAQ device dependent Shunt resistance 0 5 Voltage burden 2 mV mA Diode Measurement3 Voltage threshold 1 1 V max 1 25 Hz to 10 kHz 2 Proper null correction at the common mode voltage can reduce the 3 mA offset error to 200 A of noise 3 The Two Wire Current Voltage Analyzer SFP is the recommended instrument for diode measurement Appendix A Specifications NI ELVIS User Manual A 4 ni com Inductance Measurement Accuracy 1 Range 100 H 100 mH Test frequency 950 Hz software selectable Test frequency voltage 1 Vp p sine wave software selectable Resistance Measurement Accuracy 1 Range 5 3 M in four ranges Test frequency 120 Hz software selectable Test frequency voltage 1 Vp p sine wave software selectable Voltage Measurement AC Accuracy
8. DC to DAQ device AO update rate 10 Full power bandwidth 27 kHz Output amplitude 10 V Resolution 12 bits or 16 bits DAQ device dependent Output drive current 25 mA Output impedance 1 Slew rate 1 5 V s Bode Analyzer Amplitude accuracy 12 or 16 bits DAQ device dependent Phase accuracy 1 degree Frequency range 5 Hz 35 kHz 1 The Arbitrary Waveform Generator does not work with the NI 6014 or NI 6024 Appendix A Specifications NI ELVIS User Manual A 2 ni com DC Power Supplies 15 V Supply Output current Fused at 500 mA Output voltage 15 V at 5 max Line regulation 0 5 max Ripple and noise 1 15 V Supply Output current Fused at 500 mA1 Output voltage 15 V at 5 max Line regulation 0 5 max Ripple and noise 1 5 V Supply Output c
9. 0 25 Software controlled resolution 7 bits Current limiting 0 5 V at 160 mA 5 V at 275 mA 12 V at 450 mA Negative Supply Output voltage 12 V Ripple and noise 0 25 Software controlled resolution 7 bits Current limiting 0 5 V at 130 mA 5 V at 290mA 12 V at 450mA2 1 This SFP instrument is intended for use only with NPN BJT transistors 2 Total current drawn from 15 V and the negative variable power supply cannot exceed 500 mA Appendix A Specifications National Instruments Corporation A 7 NI ELVIS User Manual Maximum Working Voltage Maximum working voltage refers to the signal voltage plus the common mode voltage Channel to earth 20 V Installation Category I Channel to channel 20 V Installation Category I Environmental Operating temperature 0 to 40 C Storage temperature 20 to 70 C Humidity 10 to 90 relative humidity noncondensing Pollution Degree indoor use only 1 Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control an
10. 50 5 15 20 10 25 55 60 30 35 40 45 50 5 15 20 10 25 55 60 30 35 40 45 50 5 15 20 10 25 BNC 2 1 2 3 4 7 8 9 6 5 Chapter 3 Hardware Overview National Instruments Corporation 3 7 NI ELVIS User Manual Prototyping Board Signal Descriptions Table 3 1 describes the signals on the NI ELVIS prototyping board The signals are grouped by the functionality section where they are located on the prototyping board Table 3 1 Signal Descriptions Signal Name Type Description ACH lt 0 5 gt General AI Analog Input Channels 0 through 5 Positive differential input to the AI channels ACH lt 0 5 gt General AI Analog Input Channels 0 through 5 Negative differential input to the AI channels AISENSE General AI Analog Input Sense Reference for the analog channels in nonreferenced single ended NRSE mode For more information on AI modes refer to the DAQ device user manual AIGND General AI Analog Input Ground AI ground reference for the DAQ device This ground signal is not tied to the NI ELVIS GROUND signals CH lt A B gt Oscilloscope Oscilloscope Channels A and B Positive input for the Oscilloscope channels CH lt A B gt Oscilloscope Oscilloscope Channels A and B Negative input for the Oscilloscope channels TRIGGER Oscilloscope Oscilloscope Trigger Trigger input for the Oscilloscope referenced to AIGND PFI l
11. Tools or systems used in these situations must be flexible and adaptable In research environments virtual instrumentation provides the flexibility that a researcher must have to modify the system to meet unpredictable needs Research and instructional efforts also require that their systems be economical Since you can reuse components in a virtual instrumentation system without Chapter 1 DAQ System Overview NI ELVIS User Manual 1 4 ni com purchasing additional hardware or software virtual instrumentation is an economical choice Finally measurement systems must be scalable to meet future expansion needs The modular nature of virtual instrumentation makes it easy for you to add new functionality NI ELVIS Overview NI ELVIS uses LabVIEW based software instruments a multifunction DAQ device and a custom designed benchtop workstation and prototyping board to provide the functionality of a suite of common laboratory instruments The LabVIEW software that you use to interact with the NI ELVIS Benchtop Workstation and the DAQ device provides a high level programming environment for easy implementation of the sophisticated display and analysis capabilities required for virtual instrumentation The NI ELVIS hardware provides a Function Generator and Variable Power Supplies from the benchtop workstation The NI ELVIS LabVIEW soft front panel instruments combined with the functionality of the DAQ device provide the functionality of th
12. PWR SUPPLY VAR PWR SUPPLY 15 V 15 V 5 V 500 mA S B 5x20mm T 0 5 A L 250V 500 mA F B 2AG F 0 5 A L 250V 2 A F B 3AG F 2 A L 250V Dual in line Isolated 100 W 300 mW Resistor Networks Fire Hazard Do not use plastic chips PROTECTION BOARD NI ELVIS For Patents ni com patents R1 R2 R3 RP1 RP8 RP2 RP7 RP3 RP6 RP4 RP5 2 1 3 4 6 7 5 National Instruments Corporation C 1 NI ELVIS User Manual C Technical Support and Professional Services Visit the following sections of the National Instruments Web site at ni com for technical support and professional services Support Online technical support resources include the following Self Help Resources For immediate answers and solutions visit our extensive library of technical support resources available in English Japanese and Spanish at ni com support These resources are available for most products at no cost to registered users and include software drivers and updates a KnowledgeBase product manuals step by step troubleshooting wizards conformity documentation example code tutorials and application notes instrument drivers discussion forums a measurement glossary and so on Assisted Support Options Contact NI engineers and other measurement and automation professionals by visiting ni com support Our online system helps you define your question and connects you to the ex
13. Services appendix To comment on the documentation send email to techpubs ni com 2003 National Instruments Corporation All rights reserved Important Information Warranty The NI ELVIS hardware is 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 The NI ELVIS software is warranted against defects in materials and workmanship for a period of 90 days 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 This warranty includes parts and labor The media on which you receive National Instruments software are warranted not to fail to execute programming instructions due to defects in materials and workmanship for a period of 90 days from date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period National Instruments does not warrant that the operation of the software shall be uninterrupted or error free A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work National
14. The block diagram is the source code for the VI The block diagram resides in the block diagram window of the VI BNC a type of coaxial signal connector board refers to the DAQ device bode plot the plot of the gain and phase of a system as a function of frequency bus the group of conductors that interconnect individual circuitry in a computer Typically a bus is the expansion vehicle to which I O or other devices are connected An example of a PC bus is the PCI bus Glossary National Instruments Corporation G 3 NI ELVIS User Manual C C Celsius capacitance the ability to hold an electrical charge CH channel channel pin or wire lead to which you apply or from which you read the analog or digital signal Analog signals can be single ended or differential For digital signals you group channels to form ports Ports usually consist of either four or eight digital channels counter timer a circuit that counts external pulses or clock pulses timing CTR0_GATE counter 0 gate signal CTR0_OUT counter 0 output signal CTR0_SOURCE counter 0 source signal CTR1_GATE counter 1 gate signal CTR1_OUT counter 1 output signal CURRENT input signals for current related measurements for the DMM D D A digital to analog DAC D A converter DAQ data acquisition dB decibel the unit for expressing a logarithmic measure of the ratio of two signal levels dB 20log10 V1 V2 for signals in volts DC d
15. from a computer system involving communications channels operator interface devices and or data acquisition and control interfaces in inch or inches inductance the characteristic of a coil that generates a voltage due to changes in the current An inductor creates a voltage that is the derivative of the current while a capacitor creates a voltage that is the integral of the current L LabVIEW a graphical programming language LATCH DIO output signal that pulses when data is ready on the write bus LED light emitting diode N NI DAQ National Instruments driver software for DAQ hardware NRSE nonreferenced single ended mode all measurements are made with respect to a common NRSE measurement system reference but the voltage at this reference can vary with respect to the measurement system ground O op amp operational amplifier pre built amplifier modules that are general enough to be used almost anywhere an amplifier is needed Glossary National Instruments Corporation G 7 NI ELVIS User Manual P PCB printed circuit board PCI Peripheral Component Interconnect a high performance expansion bus architecture originally developed by Intel to replace ISA and EISA It is achieving widespread acceptance as a standard for PCs and workstations it offers a theoretical maximum transfer rate of 132 Mbytes s peak to peak a measure of signal amplitude the difference between the highest and lowest excursion
16. on the DAQ device For more information about the GPCTR0_SOURCE signal refer to the DAQ device user manual CTR0_GATE Counters Counter 0 Gate Connected to the GPCTR0_GATE pin on the DAQ device For more information about the GPCTR0_GATE signal refer to the DAQ device user manual CTR0_OUT Counters Counter 0 Output Connected to the GPCTR0_OUT pin on the DAQ device For more information about the GPCTR0_OUT signal refer to the DAQ device user manual CTR1_GATE Counters Counter 1 Gate Connected to the GPCTR1_GATE pin on the DAQ device For more information about the GPCTR1_GATE signal refer to the DAQ device user manual CTR1_OUT Counters Counter 1 Output Connected to the GPCTR1_OUT pin on the DAQ device For more information about the GPCTR1_OUT signal refer to the DAQ device user manual FREQ_OUT Counters Frequency Output Connected to the FREQ_OUT pin on the DAQ device For more information about the FREQ_OUT signal refer to the DAQ device user manual LED lt 0 7 gt User Configurable I O LEDs 0 through 7 Input to the LEDs DSUB SHIELD User Configurable I O D Sub Shield Connection to D Sub shield DSUB PIN lt 1 9 gt User Configurable I O D Sub Pins 1 through 9 Connection to D Sub pins Table 3 1 Signal Descriptions Continued Signal Name Type Description Chapter 3 Hardware Overview NI ELVIS User Manual 3 10 ni com Generic Analog Input The NI ELVIS Prototyping Board has six
17. such as voltage and current ranges and can save data to a file In addition the three wire instrument offers base current settings for measurements of NPN transistors Both instruments have cursors for more accurate onscreen measurements Variable Power Supplies You can control the output of the positive or negative variable power supply with these SFP instruments The negative power supply can output between 12 and 0 V and the positive power supply can output between 0 and 12 V Note For a detailed explanation of the soft front panel instruments and instructions for taking a measurement with each instrument refer to the NI ELVIS Online Help NI ELVIS LabVIEW API The NI ELVIS software also includes APIs to program four features of the NI ELVIS hardware the DIO DMM FGEN and Variable Power Supplies Refer to Chapter 4 Programming NI ELVIS for more information about using the APIs to program NI ELVIS Note For the VI reference for each API refer to the NI ELVIS Online Help NI ELVIS in Academic Disciplines You can use NI ELVIS in engineering physical sciences and biological sciences laboratories NI ELVIS is suitable not only in terms of the included software but also because of the custom signal conditioning hardware you can create with NI ELVIS Instructors can implement the NI ELVIS curriculum with beginning to advanced classes to provide hands on experience to students NI ELVIS in Engineering NI ELVIS is suite
18. the user through the distribution strips on either side of the breadboard area Each signal has a row and the rows are grouped by function Chapter 3 Hardware Overview NI ELVIS User Manual 3 6 ni com Refer to Figure 3 2 for the parts locator diagram for the prototyping board Figure 3 2 Prototyping Board Parts Locator Diagram Prototyping Board Power The prototyping board provides access to a 15 V and a 5 V power supply You can use these voltage rails to construct many common circuits Refer to Appendix A Specifications for more information about these voltage rails 1 AI Oscilloscope and Programmable Function I O Signal Rows 2 DIO Signal Rows 3 LED Array 4 D Sub Connector 5 Counter Timer User Configurable I O and DC Power Supply Signal Rows 6 DMM AO Function Generator User Configurable I O Variable Power Supplies and DC Power Supplies Signal Rows 7 Power LEDs 8 BNC Connectors 9 Banana Jack Connectors ACH0 ACH0 ACH1 ACH1 ACH2 ACH2 ACH3 ACH3 ACH4 ACH4 ACH5 ACH5 AISENSE AIGND PFI1 PFI2 PFI5 PFI6 PFI7 SCANCLK RESERVED CH A CH A CH B CH B DAC0 DAC1 3 WIRE CURRENT HI CURRENT LO VOLTAGE HI VOLTAGE LO FUNC_OUT SYNC_OUT AM_IN FM_IN BANANA A BANANA B BANANA C BANANA D 15 V 15 V GROUND 5V SUPPLY GROUND SUPPLY User Configurable I O BNC 1 BNC 1 BNC 2 BNC 2 CTR0_SOURCE CTR0_GATE CTR0_OUT CTR1_SOURCE CTR1_GATE CTR
19. to connect the DIO signals on the prototyping board The DIO circuitry of the NI ELVIS consists of an 8 bit read and write bus four control signals and a 4 bit address bus The DO lt 0 7 gt signals are the digital outputs of digital circuitry The DI lt 0 7 gt signals are the inputs to the digital circuitry The four control lines WR_ENABLE LATCH GLB_RESET and RD_ENABLE are all active low signals While data is being written to the write bus WR_ENABLE goes low While data is being read from the read bus RD_ENABLE goes low When data is ready on the write bus LATCH pulses GLB_RESET is connected to the internal reset line so the NI ELVIS internal circuitry can reset the digital circuitry built on the prototyping board Connecting Counter Timer Signals The prototyping board provides access to the DAQ device counter timer inputs which are also accessible from software These inputs are used for counting TTL signals and for edge detection The CTR0_SOURCE CTR0_GATE CTR0_OUT CTR1_GATE and CTR1_OUT signals are equivalent to the DAQ device GPCTR0_SOURCE GPCTR0_GATE GPCTR0_OUT GPCTR1_GATE and GPCTR1_OUT pins respectively Refer to the DAQ device user manual for details on counter timer use and configuration The FREQ OUT signal is equivalent to the DAQ device FREQ_OUT signal Refer to the DAQ device user manual for more information about this signal Connecting User Configurable Signals The prototyping board provides s
20. 1_OUT FREQ_OUT DI 0 DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 DI 7 WR_ENABLE LATCH GLB_RESET RD_ENABLE DO 0 DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 LED 0 LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 DSUB SHIELD DSUB PIN 1 DSUB PIN 2 DSUB PIN 3 DSUB PIN 4 DSUB PIN 5 DSUB PIN 6 DSUB PIN 7 DSUB PIN 8 DSUB PIN 9 5V GROUND User Configurable I O ADDRESS 0 ADDRESS 1 ADDRESS 2 ADDRESS 3 0 2 4 6 1 3 5 7 D SUB 1 2 3 4 5 6 7 8 9 BANANA A BANANA B BANANA C POWER LEDs BANANA D BNC 1 15 V 15V 5V Analog Input Signals 1 Oscilloscope 1 Programmable Function I O 4 DMM 2 Analog Outputs 1 Function Generator 3 Variable Power Supplies Digital I O 4 LED Array 5 Counters 4 ELECTROSTATIC SENSITIVE CONNECTORS WARNING SHARP EDGES MAY BE PRESENT ALWAYS WEAR SAFETY GLASSES Range 10 VDC 7 Vrms 1 Max Input Voltage 20 VDC 14 Vrms Current Input Output Fused at 500 mA 2 Digital I O TTL Compatible 4 5 220 Resistor in series with LED Forward Voltage 2V Max Current 30 mA W 3 Input Output Range 5 VDC 3 5 Vrms SIGNAL NOTES Variable Supply Max Output 12 VDC 500 mA 15V Supply Max Output 500 mA 5V Supply Max Output 2A POWER SUPPLIES DC Power Supplies DC Power Supply PROTOTYPING BOARD NI ELVIS TRIGGER 5 15 20 10 25 30 35 40 45 50 30 35 40 45
21. 3 11 VOLTAGE signal signal description table 3 8 VOLTAGE signal signal description table 3 7 W Web professional services C 1 technical support C 1 worldwide technical support C 2 WR_ENABLE signal See also digital I O connecting digital I O signals 3 13 signal description table 3 8
22. Class A products can be operated Consult the FCC Web site at www fcc gov for more information FCC DOC Warnings This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the instructions in this manual and the CE marking Declaration of Conformity may cause interference to radio and television reception Classification requirements are the same for the Federal Communications Commission FCC and the Canadian Department of Communications DOC Changes or modifications 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 comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference at their own expense Canadian Department of Communications This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipm
23. E NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION INCLUDING WITHOUT LIMITATION THE APPROPRIATE DESIGN PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION Compliance FCC Canada Radio Frequency Interference Compliance Determining FCC Class The Federal Communications Commission FCC has rules to protect wireless communications from interference The FCC places digital electronics into two classes 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 electronics emit weak signals during normal operation that can affect radio television or other wireless products All Class A products display a simple warning statement of one paragraph in length regarding interference and undesired operation The FCC rules have restrictions regarding the locations where FCC
24. Instruments Corporation G 1 NI ELVIS User Manual Glossary Symbol Prefix Value p pico 10 12 n nano 10 9 micro 10 6 m milli 10 3 k kilo 103 M mega 106 Symbols percent negative of or minus positive of or plus per degree ohm plus or minus A A amperes AC alternating current ACH analog input channel signal ADDRESS the DIO output signals of the address bus AI analog input Glossary NI ELVIS User Manual G 2 ni com AIGND analog input ground signal AISENSE analog input sense signal AM amplitude modulation the process in which the amplitude of a carrier wave is varied to be directly proportional to the amplitude of the modulating signal AM IN amplification modulation input signal amplification a type of signal conditioning that improves accuracy in the resulting digitized signal and reduces noise amplitude the voltage amplitude of a signal When speaking of the amplitude of a signal it is usually assumed to be the RMS value for an AC signal However amplitude can also refer to the instantaneous amplitude or the peak peak to peak or average amplitude if so specified AO analog output ARB arbitrary waveform generator B block diagram pictorial description or representation of a program or algorithm The block diagram consists of executable icons called nodes and wires that carry data between the nodes
25. Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty National Instruments believes that the information in this document is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult National Instruments if errors are suspected In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instr
26. L IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY COMPUTER HARDWARE MALFUNCTIONS COMPUTER OPERATING SYSTEM SOFTWARE FITNESS FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION INSTALLATION ERRORS SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES TRANSIENT FAILURES OF ELECTRONIC SYSTEMS HARDWARE AND OR SOFTWARE UNANTICIPATED USES OR MISUSES OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED SYSTEM FAILURES ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS INCLUDING THE RISK OF BODILY INJURY AND DEATH SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE TO AVOID DAMAGE INJURY OR DEATH THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES INCLUDING BUT NOT LIMITED TO BACK UP OR SHUT DOWN MECHANISMS BECAUSE EACH END USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY US
27. NI Educational Laboratory Virtual Instrumentation Suite NI ELVIS User Manual NI ELVIS User Manual April 2003 Edition Part Number 323363A 01 Support Worldwide Technical Support and Product Information ni com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA Tel 512 683 0100 Worldwide Offices Australia 1800 300 800 Austria 43 0 662 45 79 90 0 Belgium 32 0 2 757 00 20 Brazil 55 11 3262 3599 Canada Calgary 403 274 9391 Canada Montreal 514 288 5722 Canada Ottawa 613 233 5949 Canada Qu bec 514 694 8521 Canada Toronto 905 785 0085 Canada Vancouver 514 685 7530 China 86 21 6555 7838 Czech Republic 420 2 2423 5774 Denmark 45 45 76 26 00 Finland 385 0 9 725 725 11 France 33 0 1 48 14 24 24 Germany 49 0 89 741 31 30 Greece 30 2 10 42 96 427 India 91 80 51190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 Mexico 001 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 1800 300 800 Norway 47 0 66 90 76 60 Poland 48 0 22 3390 150 Portugal 351 210 311 210 Russia 7 095 238 7139 Singapore 65 6226 5886 Slovenia 386 3 425 4200 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 200 51 51 Taiwan 886 2 2528 7227 Thailand 662 992 7519 United Kingdom 44 0 1635 523545 For further support information see the Technical Support and Professional
28. Synchronization Output TTL signal of the same frequency as the output as the FUNC OUT pin AM_IN Function Generator Amplitude Modulation Input Input to the amplitude modulator for the Function Generator FM_IN Function Generator Frequency Modulation Input Input to the frequency modulator for the Function Generator BANANA lt A D gt User Configurable I O Banana Jacks A through D Connects to the banana jacks pins BNC lt 1 2 gt User Configurable I O BNC Connectors 1 and 2 Connects to the BNC pins BNC lt 1 2 gt User Configurable I O BNC Connectors 1 and 2 Connects to the BNC pins SUPPLY Variable Power Supplies Positive Output of 0 to 12 V variable power supply SUPPLY Variable Power Supplies Negative Output of 12 to 0 V variable power supply GROUND Variable Power Supplies DC Power Supplies Ground Prototyping board ground These two ground signals are tied together 15 V DC Power Supplies 15 V Source Output of fixed 15 V power supply referenced to the NI ELVIS GROUND signal 15 V DC Power Supplies 15 V Source Output of fixed 15 V power supply referenced to the NI ELVIS GROUND signal 5V DC Power Supplies 5V Source Output of fixed 5 V power supply referenced to the NI ELVIS GROUND signal DO lt 0 7 gt DIO Digital Output Lines 0 through 7 Output of the write bus WR ENABLE DIO Write Enable Output indicating data is being writt
29. annels are used by the NI ELVIS hardware for arbitrary waveform generation Caution Other functions of the NI ELVIS such as the DMM and FGEN internally use these DACs and can potentially interfere with the measurements The driver software generates an error message when there is a potential resource conflict DC Power Supplies The DC power supplies output a static 15 V and 5 V For more information on the DC power supplies output refer to Appendix A Specifications Function Generator FGEN Access to the Function Generator on the prototyping board has several additional terminals besides the function generator output signal FUNC_OUT The SYNC_OUT signal outputs a TTL compatible clock signal of the same frequency as the output waveform The AM_IN and FM_IN signals control the amplitude modulation AM and the frequency modulation FM respectively These signals are in addition to the fine frequency and amplitude controls on the benchtop workstation Software AM is controlled by DAC0 and software FM is controlled by DAC1 Variable Power Supplies The Variable Power Supplies provide adjustable output voltages from 0 to 12 V on the SUPPLY terminal and 12 to 0 V on the SUPPLY terminal The GROUND pin provides a connection to the same ground of the DC power supplies Chapter 3 Hardware Overview National Instruments Corporation 3 13 NI ELVIS User Manual Connecting Digital I O Signals This section describes how
30. d laboratory use IEC 61010 1 EN 61010 1 UL 3111 1 UL 61010B 1 CAN CSA C22 2 No 1010 1 Note For UL and other safety certifications refer to the product label or to ni com Electromagnetic Compatibility Emissions EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Immunity EN 61326 1997 A2 2001 Table 1 CE C Tick and FCC Part 15 Class A Compliant Note For full EMC compliance you must operate this device with shielded cabling In addition all covers and filler panels must be installed Appendix A Specifications NI ELVIS User Manual A 8 ni com CE Compliance This product meets the essential requirements of applicable European Directives as amended for CE marking as follows Low Voltage Directive safety 73 23 EEC Electromagnetic Compatibility Directive EMC 89 336 EEC Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product click Declarations of Conformity Information at ni com hardref nsf National Instruments Corporation B 1 NI ELVIS User Manual B Protection Board Fuses This appendix describes the fuses on the NI ELVIS Protection Board and gives instructions on how to remove the protection board from the NI ELVIS Benchtop Workstation debug the protection board and change fuses Removing the Protection Board The Protection Board
31. d for teaching basic electronics and circuit design to students in electrical engineering mechanical engineering and biomedical engineering The suite offers full testing measurement and data saving capabilities needed for such training Students can use the removable Chapter 2 NI ELVIS Overview NI ELVIS User Manual 2 8 ni com prototyping board at home to build circuits thus using laboratory time more effectively NI ELVIS SFP instruments such as the Bode Analyzer offer instructors an opportunity to teach advanced courses in signal analysis and processing Students may construct software filters in LabVIEW and hardware filters on the prototyping board and compare the performance of those two types of filters Mechanical engineering students can learn sensor and transducer measurements in addition to basic circuit design by building custom signal conditioning Students can install custom sensor adapters on the prototyping board For example installing a thermocouple jack on the prototyping board allows robust thermocouple connections The programmable power supply can provide excitation for strain gauges used in strain measurements NI ELVIS in Biological Sciences Biomedical engineering departments have challenges that are similar to those of mechanical departments Students typically learn basic electronics and build instruments such as an electrocardiogram ECG monitor The prototyping board offers signal conditioning capabil
32. detaches from the NI ELVIS Benchtop Workstation as shown in Figure B 1 Refer to Where to Start with the NI ELVIS for more parts locator diagrams of the NI ELVIS Benchtop Workstation Figure B 1 NI ELVIS Benchtop Workstation with Protection Board Removed 1 NI ELVIS Protection Board 2 NI ELVIS Benchtop Workstation 2 1 Appendix B Protection Board Fuses NI ELVIS User Manual B 2 ni com Complete the following steps to remove the protection board from the benchtop workstation Refer to Figure B 1 as needed 1 Move the NI ELVIS Power Switch to Standby The Standby switch is located on the back side of the benchtop workstation Refer to Where to Start with the NI ELVIS for an illustration of the switch location 2 Unplug the 68 pin cable and the power supply cable from the benchtop workstation 3 Disconnect the prototyping board from the benchtop workstation 4 Unscrew the captive screws located on the back of the NI ELVIS Protection Board 5 Gently pull on the captive screws to remove the protection board Debugging the Protection Board The protection board provides a level of electrical protection between the prototyping board and the motherboard of the NI ELVIS This protection consists of fuses for the high current signals such as the power supplies AO channels and DMM and 100 current limited resistors for the low current signals such as the AI channels and digital signals If too much current begin
33. differential AI channels available ACH lt 0 5 gt These inputs are directly connected to the DAQ device input channels The NI ELVIS also has two ground pins AISENSE and AIGND which are connected to the DAQ device ground pins Table 3 2 shows how the NI ELVIS input channels map to the DAQ device input channels Table 3 2 Analog Input Signal Mapping NI ELVIS Input Channel DAQ Device Input Channel ACH0 ACH0 ACH0 ACH8 ACH1 ACH1 ACH1 ACH9 ACH2 ACH2 ACH2 ACH10 ACH3 ACH3 ACH3 ACH11 ACH4 ACH4 ACH4 ACH12 ACH5 ACH5 ACH5 ACH13 AISENSE AISENSE AIGND AIGND Chapter 3 Hardware Overview National Instruments Corporation 3 11 NI ELVIS User Manual The following sections describe some special considerations for connecting the AI signals on the prototyping board including sections that specifically pertain to the Oscilloscope and DMM Resource Conflicts Some of the AI channels are used by the internal circuitry for other instruments but the majority of the time the channel can still be used ACH lt 0 2 gt can be used without interruption ACH5 is interrupted if any of the impedance analyzing capabilities of the DMM such as the capacitance meter diode tester and so on are used If you are using the Oscilloscope disconnect any signals from ACH3 and ACH4 to avoid double driving the channels Caution By connecting different signals to both the DMM terminals on
34. e Overview for an illustration of signal connections on the prototyping board Typical counter timer applications include pulse train generation event counting and frequency measurement For more information on how to perform counter timer measurements using NI DAQ refer to the NI DAQ documentation that shipped with the DAQ device Table 4 1 Counter Signal Correlations NI ELVIS DAQ Device CTR lt 0 1 gt _SOURCE GPCTR lt 0 1 gt _SOURCE CTR lt 0 1 gt _GATE GPCTR lt 0 1 gt _GATE CTR lt 0 1 gt _OUT GPCTR lt 0 1 gt _OUT Chapter 4 Programming NI ELVIS NI ELVIS User Manual 4 4 ni com NI ELVIS also provides access to the programmable function input PFI pins on the DAQ device These pins are typically used in advanced applications that require external control of a measurement Examples of these advanced applications include triggering and scan clock control For more information on the PFI pins refer to the DAQ device user manual For more information on how to use the PFI pins using NI DAQ refer to the NI DAQ documentation that shipped with the DAQ device Programming NI ELVIS Using the NI ELVIS LabVIEW API An instrument driver is a set of software routines that control a programmable instrument Each routine corresponds to a programmatic operation such as configuring reading from writing to and triggering the instrument Instrument drivers simplify instrument control by eliminating the need to learn the prog
35. e NI ELVIS does not support 64 AI channel DAQ devices or DIO only devices Using the DAQ Hardware in Bypass Mode The NI ELVIS communicates with the computer through the eight DIO lines of the DAQ device The Communications switch controls the routing of the DIO to the NI ELVIS In normal operation the switch is in Normal mode and the DIO lines are routed to the NI ELVIS hardware allowing software control When the Communications switch is set to Bypass mode the LED next to the switch is lit No communication changes occur unless you use the NI ELVIS Enable Communications Bypass VI in conjunction with putting the switch in Bypass mode After you move the switch and run the VI the DIO lines are routed to the DI lines on the prototyping board Figure 3 1 shows the location of the Communications switch Chapter 3 Hardware Overview NI ELVIS User Manual 3 2 ni com When in Bypass mode the hardware Function Generator and Variable Power Supplies are still available through the manual controls The counter timers AI and AO on the DAQ device are also available The NI ELVIS SFP instruments notify you when the Communications switch is in Bypass mode Some SFP controls are dimmed when the Communications switch is moved to Bypass mode For detailed information about the DAQ device refer to the device user manual which you can download at ni com manuals NI ELVIS Benchtop Workstation This section describes the NI ELVIS Benchtop Workstat
36. e following SFP instruments Arbitrary Waveform Generator ARB Bode Analyzer Digital Bus Reader Digital Bus Writer Digital Multimeter DMM Dynamic Signal Analyzer DSA Function Generator FGEN Impedance Analyzer Oscilloscope Scope Two Wire Current Voltage Analyzer Three Wire Current Voltage Analyzer Variable Power Supplies Refer to Figure 2 1 The NI ELVIS System in Chapter 2 NI ELVIS Overview for an illustration of the NI ELVIS Chapter 1 DAQ System Overview National Instruments Corporation 1 5 NI ELVIS User Manual Safety Information The following section contains important safety information that you must follow when installing and using the product Do not operate the product in a manner not specified in this document Misuse of the product can result in a hazard You can compromise the safety protection built into the product if the product is damaged in any way If the product is damaged return it to National Instruments for repair Do not substitute parts or modify the product except as described in this document Use the product only with the chassis modules accessories and cables specified in the installation instructions You must have all covers and filler panels installed during operation of the product Do not operate the product in an explosive atmosphere or where there may be flammable gases or fumes If you must ope
37. e last dialog box This icon denotes a note which alerts you to important information This icon denotes a caution which advises you of precautions to take to avoid injury data loss or a system crash When this symbol is marked on the product refer to the Safety Information section of Chapter 1 DAQ System Overview for precautions to take bold Bold text denotes items that you must select or click in the software such as menu items and dialog box options Bold text also denotes parameter names and hardware labels DAQ device DAQ device refers to any National Instrument DAQ device that meets the conditions listed in the DAQ Hardware section of Chapter 3 Hardware Overview ELVIS Educational Laboratory Virtual Instrumentation Suite italic Italic text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text that is a placeholder for a word or value that you must supply About This Manual NI ELVIS User Manual x ni com monospace Text in this font denotes text or characters that you should enter from the keyboard sections of code programming examples and syntax examples This font is also used for the proper names of disk drives paths directories programs subprograms subroutines device names functions operations variables filenames and extensions and code excerpts PCI Peripheral Component Interconnect a high performance expansion bus architecture origi
38. e of floating signal sources are batteries transformers or thermocouples FM_IN frequency modulation input signal FREQ_OUT frequency output signal frequency the basic unit of rate measured in events or oscillations per second using a frequency counter or spectrum analyzer Frequency is the reciprocal of the period of a signal front panel the user interface of a LabVIEW virtual instrument FUNC_OUT output signal for the function generator G gain the factor by which a signal is amplified sometimes expressed in decibels GPCTR0_GATE general purpose counter timer 0 gate signal available from a DAQ device GPCTR0_OUT general purpose counter timer 0 output signal available from a DAQ device GPCTR0_SOURCE general purpose counter timer 0 clock source signal available from a DAQ device GPCTR1_GATE general purpose counter timer 1 gate signal available from a DAQ device GPCTR1_OUT general purpose counter timer 1 output signal available from a DAQ device GPCTR1_SOURCE general purpose counter timer 1 clock source signal available from a DAQ device GROUND prototyping board ground signal Glossary NI ELVIS User Manual G 6 ni com H hardware triggering a form of triggering where you set the start time of an acquisition and gather data at a known position in time relative to a trigger signal Hz hertz the number of scans read or updates written per second I I O input output the transfer of data to
39. ed equipment such as equipment in fixed installations distribution boards and circuit breakers Other examples are wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and stationary motors with permanent connections to fixed installations Installation Category IV is for measurements performed at the primary electrical supply installation lt 1 000V Examples include electricity meters and measurements on primary overcurrent protection devices and on ripple control units 1 Installation categories also referred to as measurement categories are defined in electrical safety standard IEC 61010 1 2 Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation 3 MAINS is defined as a hazardous live electrical supply system that powers equipment Suitably rated measuring circuits may be connected to the MAINS for measuring purposes National Instruments Corporation 2 1 NI ELVIS User Manual 2 NI ELVIS Overview NI ELVIS combines hardware and software into one complete laboratory suite This chapter provides an overview of the hardware and software components of the NI ELVIS Additionally this chapter discusses how NI ELVIS can be used in various academic environments Chapter 3 Hardware Overview provides more detailed information about NI ELVIS hardware components Refer to the NI ELVIS Online Help for more information abou
40. en to the write bus LATCH DIO Latch Output that pulses after data is ready on the write bus GLB RESET DIO Global Reset Output indicating global digital reset RD ENABLE DIO Read Enable Output indicating data is being read from read bus DI lt 0 7 gt DIO Digital Input Lines 0 through 7 Output of read bus ADDRESS lt 0 3 gt DIO Address Lines 0 through 3 Output of address bus Table 3 1 Signal Descriptions Continued Signal Name Type Description Chapter 3 Hardware Overview National Instruments Corporation 3 9 NI ELVIS User Manual Grounding Considerations Because the analog channels are differential you must establish a ground point somewhere in the signal path As long as the signal you are measuring is referenced to one of the NI ELVIS GROUND pins the measurement is correctly referenced If a floating source such as a battery is being measured be sure to connect one end of the signal to the NI ELVIS GROUND Terminals for the NI ELVIS GROUND signal are located at several locations on the prototyping board All these signals are tied together Connecting Analog Input Signals This section describes how to connect AI signals on the NI ELVIS Prototyping Board Refer to the DAQ device user manual for more information about types of signal sources input modes grounding configurations and floating signal sources CTR0_SOURCE Counters Counter 0 Source Connected to the GPCTR0_SOURCE pin
41. ent Regulations Cet appareil num rique de la classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Compliance to EU Directives Readers in the European Union EU must refer to the manufacturer s Declaration of Conformity DoC for information pertaining to the CE marking compliance scheme The manufacturer includes a DoC for most hardware products except for those bought from OEMs In addition DoCs are usually not provided if compliance is not required for example electrically benign apparatus or cables To obtain the DoC for this product click Declaration of Conformity at ni com hardref nsf This Web site lists the DoCs by product family Select the appropriate product family followed by your product and a link to the DoC appears in Adobe Acrobat format Click the Acrobat icon to download or read the DoC The CE marking Declaration of Conformity contains important supplementary information and instructions for the user or installer National Instruments Corporation v NI ELVIS User Manual Contents About This Manual Conventions ix Related Documentation x Chapter 1 DAQ System Overview What is DAQ
42. erform a single write The output of the NI ELVIS Digital Bus Writer SFP stays latched until the instrument is stopped or another pattern is output Output voltage levels of the SFP are TTL compatible Digital Multimeter DMM This commonly used instrument can perform the following types of measurements DC voltage AC voltage Current DC and AC Resistance Capacitance Inductance Diode test Audible continuity You can connect to the DMM from the NI ELVIS Prototyping Board or from the banana style connectors on the front panel of the benchtop workstation Chapter 2 NI ELVIS Overview NI ELVIS User Manual 2 6 ni com Dynamic Signal Analyzer DSA This instrument is especially useful in advanced electrical engineering and physics classes This instrument uses the analog input of the DAQ device to make measurements and can either continuously make measurements or make a single scan You can also apply various window and filtering options to the signal Function Generator FGEN This instrument provides you with choices for the type of output waveform sine square or triangle amplitude selection and frequency settings In addition the instrument offers DC offset setting frequency sweep capabilities and modulation Impedance Analyzer This instrument is a basic impedance analyzer that is capable of measuring the resistance and reactance for passive two wire element
43. ese signals can either intelligently control mechanical systems or provide a stimulus so that the DAQ system can measure a response Most DAQ devices have four standard elements analog input AI analog output AO digital I O DIO and counter timers The most common National Instruments DAQ devices are the E Series devices The DAQ Hardware section of Chapter 3 Hardware Overview describes in greater detail the DAQ device used as part of the NI ELVIS Refer to the DAQ device user manual at ni com manuals for specific information about the functionality and operation of the device Transducers Signal Conditioning Data Acquisition and Analysis Hardware Personal Computer Software Chapter 1 DAQ System Overview National Instruments Corporation 1 3 NI ELVIS User Manual LabVIEW LabVIEW is a graphical programming language frequently used for creating test measurement and automation applications LabVIEW uses icons instead of lines of text to create applications Unlike text based programming languages LabVIEW uses dataflow programming where the flow of data determines execution In LabVIEW you build a user interface by using a set of tools and objects The user interface is known as the front panel You then add code using graphical representations of functions to control the front panel objects The block diagram contains this code In some ways the block diagram resembles a flowchart A virtual instrument VI i
44. esulting from laboratory errors Refer to the NI ELVIS Benchtop Workstation section of Chapter 3 Hardware Overview for more detailed information about the benchtop workstation including the parts locator diagram NI ELVIS Prototyping Board The NI ELVIS Prototyping Board connects to the benchtop workstation The prototyping board provides an area for building electronic circuitry and allows the connections necessary to access signals for common applications You can use multiple prototyping boards interchangeably with the NI ELVIS Benchtop Workstation Refer to the NI ELVIS Prototyping Board section of Chapter 3 Hardware Overview for more information about the prototyping board including signal descriptions connection instructions and the parts locator diagram NI ELVIS Software The NI ELVIS software created in LabVIEW takes advantage of the capabilities of virtual instrumentation The software includes two main types the soft front panel SFP instruments and the LabVIEW API for programming the NI ELVIS hardware SFP Instruments NI ELVIS ships with the SFP instruments created in LabVIEW and the source code for the instruments You cannot directly modify the executable files but you can modify or enhance the functionality of these instruments Chapter 2 NI ELVIS Overview NI ELVIS User Manual 2 4 ni com by modifying the LabVIEW code The instruments are virtual instruments VIs that are necessary in typical laborat
45. everal different user configurable connectors four banana jacks two BNC connectors and a D Sub connector Each pin of the connector has a connection to the distribution strips of the prototyping board Eight LEDs are provided for general digital output The anode of each LED is connected to the distribution strip through a 220 resistor and each cathode is connected to ground Refer to Table 3 1 for more information about the signal names for the user configurable I O connectors National Instruments Corporation 4 1 NI ELVIS User Manual 4 Programming NI ELVIS An NI ELVIS measurement system is composed of the NI ELVIS hardware the DAQ device and the LabVIEW software that controls the hardware Various measurements can be performed by NI ELVIS using either the NI DAQ driver or the NI ELVIS instrument driver Three standard measurement functions of DAQ devices AI AO and TIO can be utilized when connected to the NI ELVIS Benchtop Workstation The fourth DAQ device function DIO is unavailable with an NI ELVIS measurement system since the DAQ device DIO communicates with the control circuitry of the benchtop workstation Additionally the NI ELVIS Benchtop Workstation has Variable Power Supplies a Function Generator a DMM and DIO that you can control using the NI ELVIS instrument driver which is located in the functions palette under Instrument I O Instrument Drivers NI ELVIS This chapter explains how to program t
46. gital Bus Reader 2 5 Digital Bus Writer 2 5 Digital Multimeter DMM 2 5 Dynamic Signal Analyzer DSA 2 6 Function Generator FGEN 2 6 Impedance Analyzer 2 6 Oscilloscope Scope 2 6 Two Wire and Three Wire Current Voltage Analyzers 2 7 Variable Power Supplies 2 7 NI ELVIS LabVIEW API 2 7 NI ELVIS in Academic Disciplines 2 7 NI ELVIS in Engineering 2 7 NI ELVIS in Biological Sciences 2 8 NI ELVIS in Physical Sciences 2 8 Contents NI ELVIS User Manual vi ni com Chapter 3 Hardware Overview DAQ Hardware
47. he NI ELVIS hardware using NI DAQ and the NI ELVIS Instrument Driver This chapter is not intended to be an exhaustive guide to programming with LabVIEW or NI DAQ its purpose is instead to familiarize you with concepts you should know about when programming NI ELVIS For more information on programming with NI DAQ or LabVIEW refer to the NI DAQ documentation that shipped with the device or to the LabVIEW Measurements Manual Programming NI ELVIS Using NI DAQ This section explains how to program NI ELVIS for AI AO and timing and control I O applications You can find other examples for using NI ELVIS for AI AO and counter timer applications by launching LabVIEW and selecting Find Examples Hardware Input and Output DAQ and then the type of example or you can find examples by selecting Find Examples and then searching for NI ELVIS Note The DIO examples within LabVIEW do not work with the DIO lines of the NI ELVIS hardware Refer to the Using the DAQ Hardware in Bypass Mode section of Chapter 4 Programming NI ELVIS NI ELVIS User Manual 4 2 ni com Chapter 3 Hardware Overview for more information about using the communications bypass Analog Input You can use NI ELVIS to measure up to six differential AI channels ACH lt 0 5 gt Note The DAQ device must be configured for differential AI mode before making connections to the NI ELVIS Benchtop Workstation For information on configuring the DAQ device refer to the Mea
48. ion table 3 7 AM_IN signal See also function generator connecting analog output signals 3 12 signal description table 3 8 analog input connecting signals 3 9 resource conflicts 3 11 signal mapping table 3 10 analog input software instruments bode analyzer SFP 2 5 DMM SFP 2 5 DSA SFP 2 6 impedance analyzer SFP 2 6 scope SFP 2 6 three wire current voltage analyzer SFP 2 7 two wire current voltage analyzer SFP 2 7 analog output connecting signals 3 12 software instruments ARB SFP 2 4 FGEN SFP 2 6 variable power supplies 2 7 Index NI ELVIS User Manual I 2 ni com analog output instruments hardware function generator controls 3 3 overview 2 3 variable power supplies controls 3 3 overview 2 3 API overview 2 7 ARB SFP overview 2 4 B BANANA lt A D gt signals connecting user configurable I O signals 3 13 connector locations figure 3 6 signal description table 3 8 benchtop workstation controls and indicators 3 2 overview 2 3 parts locator diagram 3 2 removing the protection board B 1 BNC lt 1 2 gt signals connecting user configurable I O signals 3 13 signal description table 3 8 BNC lt 1 2 gt signals connecting user configurable I O signals 3 13 signal description table 3 8 bode analyzer specifications A 1 bode analyzer SFP overview 2 5 bypass mode communications switch location figure 3 2 description 3 2 C calibration certificate C 2 CH
49. ion and the control panel on the front of the workstation Refer to Figure 3 1 for the parts locator diagram for the benchtop workstation Figure 3 1 Control Panel Diagram of the Benchtop Workstation The benchtop workstation has the following controls and indicators System Power LED Indicates whether the NI ELVIS is powered on Prototyping Board Power Switch Controls the power to the prototyping board 1 System Power LED 2 Prototyping Board Power Switch 3 Communications Switch 4 Variable Power Supplies Controls 5 Function Generator FGEN Controls 6 DMM Connectors 7 Oscilloscope Scope Connectors 3 2 4 5 6 7 1 VARIABLE POWER SUPPLIES FUNCTION GENERATOR PROTOTYPING BOARD POWER SYSTEM POWER MANUAL 20 VDC MAX 14 Vrms MAX MANUAL MANUAL FINE FREQUENCY AMPLITUDE COARSE FREQUENCY VOLTAGE VOLTAGE DMM SCOPE CH A CH B TRIGGER COMMUNICATIONS NORMAL BYPASS FUSED AT 500 mA HI LO HI LO W 250 kHz 50 kHz 5 kHz 500 Hz 12 0 0 A 10 VDC 7 Vrms MAX VOLTAGE CURRENT SUPPLY SUPPLY ELECTROSTATIC SENSITIVE CONNECTORS 50 Hz NI ELVIS 12 Chapter 3 Hardware Overview National Instruments Corporation 3 3 NI ELVIS User Manual Communications Switch Requests disabling software control of the NI ELVIS This setting provides direct access to the DAQ device DIO lines For more information about the Comm
50. irect current default setting a default parameter value recorded in the driver In many cases the default input of a control is a certain value often 0 that means use the current default setting Glossary NI ELVIS User Manual G 4 ni com DI digital I O input signals sent to the DI bus differential input an analog input consisting of two terminals both of which are isolated from computer ground whose difference is measured digital trigger a TTL level signal having two discrete levels a high and a low level DIO digital I O diode a specialized electronic component with two electrodes called the anode and the cathode DMM digital multimeter DO digital I O output signals from the DO bus DOC Canadian Department of Communications DSA dynamic signal analyzer E ECG electrocardiogram EEPROM electrically erasable programmable read only memory ROM that can be erased with an electrical signal and reprogrammed ELVIS Educational Laboratory Virtual Instrumentation Suite EMC electromechanical compliance EMI electromagnetic interference EXTSTROBE external strobe signal F FCC Federal Communications Commission FGEN function generator Glossary National Instruments Corporation G 5 NI ELVIS User Manual floating signal sources signal sources with voltage signals that are not connected to an absolute reference or system ground Also called nonreferenced signal sources Some common exampl
51. ity for ECG sensors and the NI ELVIS SFP instruments are ideal for testing the circuits as students build the signal conditioning circuits NI ELVIS in Physical Sciences Physics students typically learn electronics and circuit design theory NI ELVIS provides these students with the opportunity to implement these concepts Physics students sometimes need signal conditioning for common sensors such as photoelectric multiplier or light detector sensors Students can build high gain low noise circuits on a printed circuit board PCB and use them in modern physics labs Caution The NI ELVIS hardware is not environmentally sealed therefore exercise extreme caution for use in chemical and biological sciences National Instruments Corporation 3 1 NI ELVIS User Manual 3 Hardware Overview This chapter describes the hardware components of the NI ELVIS including the DAQ device the benchtop workstation and the prototyping board DAQ Hardware NI ELVIS is designed to interact with National Instruments DAQ devices which are high performance multifunction analog digital and timing I O devices for PCI bus computers Supported functions on DAQ devices include AI AO DIO and timing I O TIO To use the NI ELVIS the DAQ device installed in the computer connected to the NI ELVIS must have the following minimum requirements 16 AI channels Two AO channels Eight DIO lines Two counter timers Note Th
52. le 4 3 signal description table 3 9 CTR1_SOURCE signal counter signal correlations table 4 3 CURRENT HI signal See also DMM connecting analog input signals 3 11 signal description table 3 7 CURRENT LO signal See also DMM connecting analog input signals 3 11 signal description table 3 7 customer education C 1 professional services C 1 technical support C 1 D D0 lt 0 7 gt signals signal description table 3 8 DAC lt 0 1 gt signals See also analog output 3 8 connecting analog output signals 3 12 internally using caution 3 12 signal description table 3 8 DAQ hardware definition 1 1 NI ELVIS components figure 2 2 overview 1 2 system requirements 3 1 using the hardware in bypass mode 3 1 DC power supplies prototyping board power 3 6 signal descriptions table 3 8 specifications 5 V power supply A 2 15 V supply A 2 debugging the protection board B 2 Declaration of Conformity C 2 DI lt 0 7 gt signals See also digital I O connecting digital I O signals 3 13 signal description table 3 8 diagnostic resources C 1 digital bus reader SFP overview 2 5 digital bus writer SFP overview 2 5 digital I O connecting signals 3 13 DAQ hardware requirements 3 1 DIO lines bypass mode 3 1 LabVIEW API 4 7 signal descriptions table 3 8 software instruments digital bus reader 2 5 digital bus writer SFP 2 5 digital multimeter See DMM DMM connecting signals 3 11 connecto
53. lso include the output of analog or digital control signals The building blocks of a DAQ system include the following items Transducer A device that converts a physical phenomenon such as light temperature pressure or sound into a measurable electrical signal such as voltage or current Signal The product of the DAQ system transducer Signal conditioning Hardware that you can connect to the DAQ device to make the signal suitable for measurement or to improve accuracy or reduce noise The most common types of signal conditioning include amplification excitation linearization isolation and filtering DAQ hardware Hardware you use to acquire measure and analyze data Software NI application software is designed to help you easily design and program your measurement and control application Chapter 1 DAQ System Overview NI ELVIS User Manual 1 2 ni com Figure 1 1 shows the components of a typical DAQ system Figure 1 1 Typical DAQ System The NI ELVIS incorporates DAQ hardware and software the last two of the DAQ system components into one product The following sections give more information about DAQ hardware and software which is LabVIEW in the case of NI ELVIS DAQ Hardware Since DAQ devices acquire electrical signals a transducer or a sensor must convert some physical phenomenon into an electrical signal A DAQ system can also simultaneously produce electrical signals Th
54. lt A B gt signals See also oscilloscope connecting analog input signals 3 11 signal description table 3 7 CH lt A B gt signals See also oscilloscope connecting analog input signals 3 11 signal description table 3 7 communications switch location figure 3 2 configuring the NI ELVIS 2 4 connecting signals on the prototyping board analog input DMM 3 11 generic analog input 3 10 grounding 3 9 oscilloscope 3 11 resource conflicts 3 11 analog output DC power supplies 3 12 function generator 3 12 generic analog output 3 12 variable power supplies 3 12 counter timer signals 3 13 digital I O 3 13 user configurable signals 3 13 contacting National Instruments C 2 conventions used in the manual ix counter timers connecting signals 3 13 CTR0_GATE signal connecting counter timer signals 3 13 counter signal correlations table 4 3 signal description table 3 9 CTR0_OUT signal connecting counter timer signals 3 13 counter signal correlations table 4 3 signal description table 3 9 Index National Instruments Corporation I 3 NI ELVIS User Manual CTR0_SOURCE signal connecting counter timer signals 3 13 counter signal correlations table 4 3 signal description table 3 9 CTR1_GATE signal connecting counter timer signals 3 13 counter signal correlations table 4 3 signal description table 3 9 CTR1_OUT signal connecting counter timer signals 3 13 counter signal correlations tab
55. ltimeter The NI ELVIS Benchtop Workstation contains circuitry that combines with the DAQ hardware to allow DMM type measurements such as voltage current and resistance The DMM hardware can be controlled using the NI ELVIS instrument driver The driver allows the user to configure the measurement type and read the measurement results A simple application is shown in Figure 4 3 Figure 4 3 Simple DMM Application The type of measurement is configured the measurement value is returned and then the DMM reference is closed The DAQ device number is provided to identify the DAQ device that is cabled to the NI ELVIS Benchtop Workstation Refer to the DAQ documentation that shipped with the DAQ device for more information about device numbers The refnum that is passed between the API VIs contains information about the current configuration state If the configuration VI is used in a loop you should wire the refnum to shift registers so that the refnum information persists between loops Refer to the NI ELVIS Online Help for more information about the specific VIs in the DMM API Digital I O The DAQ device digital lines are used to control the NI ELVIS Benchtop Workstation Therefore those lines are not directly accessible on the prototyping board However the benchtop workstation contains circuitry that multiplexes the DAQ DIO lines to provide digital input and output signals The DIO hardware can be controlled using the NI ELVIS instr
56. nally developed by Intel to replace ISA and EISA Related Documentation The following documents contain information that you might find helpful as you read this manual DAQ device user manual available at ni com manuals Getting Started with LabVIEW available at ni com manuals LabVIEW Help available by selecting Help VI Function and How To Help from the LabVIEW block diagram or front panel LabVIEW Measurements Manual available at ni com manuals Measurement amp Automation Explorer Help for DAQ available by selecting Help Help Topics NI DAQ from the Measurement amp Automation Explorer MAX window Where to Start with NI ELVIS available in PDF format on the NI ELVIS Software CD NI ELVIS Online Help available on the NI ELVIS Software CD or from ni com manuals National Instruments Corporation 1 1 NI ELVIS User Manual 1 DAQ System Overview This chapter briefly describes the concept of DAQ systems and introduces NI ELVIS a DAQ system designed for educational laboratories What is DAQ DAQ systems capture measure and analyze physical phenomena from the real world Light temperature pressure and torque are examples of the different types of signals that a DAQ system can measure Data acquisition is the process of collecting and measuring electrical signals from transducers and test probes or fixtures and sending them to a computer for processing Data acquisition may a
57. of the same name on the DAQ device These signals can be used as normal output channels for any existing DAQ examples and for when you program with DAQ VIs Chapter 4 Programming NI ELVIS National Instruments Corporation 4 3 NI ELVIS User Manual Refer to the NI ELVIS Prototyping Board section of Chapter 3 Hardware Overview for an illustration of signal locations on the prototyping board The output channels are also used by the following NI ELVIS SFP instruments FGEN DMM Impedance Analyzer Two Wire Current Voltage Analyzer and Three Wire Current Voltage Analyzer The output channels may not be available if these SFP instruments are running Typical AO applications include continuous waveform generation and single point output updates For more information on how to perform AO generation using NI DAQ refer to the NI DAQ documentation that shipped with the DAQ device Timing and Control I O NI ELVIS provides access to the two counter timers of the DAQ device Table 4 1 shows how NI ELVIS counter signals correlate with DAQ device timing signals CTR0 and CTR1 can be used as normal counter timers for any existing DAQ examples and for when you program with DAQ VIs The counter timers are also used by the NI ELVIS software Function Generator instrument The counter timers might be unavailable if the soft front panel Function Generator instrument is running Refer to the NI ELVIS Prototyping Board section of Chapter 3 Hardwar
58. ory applications This section briefly describes each SFP instrument included with NI ELVIS The instrument software is LabVIEW based so you can customize the instruments by modifying the LabVIEW code Instrument Launcher The NI ELVIS Instrument Launcher provides access to the NI ELVIS software instruments To launch an instrument click the button corresponding to the desired instrument If the NI ELVIS software is properly configured and the benchtop workstation is cabled to the appropriate DAQ device all buttons should be visible If there is a problem with your configuration such as when the NI ELVIS Benchtop Workstation is powered off or disconnected from the configured DAQ device all instrument buttons are dimmed and the only available option is to click the Configure button Refer to Where to Start with the NI ELVIS for more information about configuring NI ELVIS Some instruments perform similar operations using the same resources of the NI ELVIS hardware and the DAQ device and cannot be run at the same time If you launch two instruments with overlapping functionality that cannot run at the same time the NI ELVIS software generates an error dialog describing the conflict The instrument with the error is disabled and will not function until the conflict is resolved Arbitrary Waveform Generator ARB This advanced level SFP instrument uses the AO capabilities of the DAQ device You can create a variety of signal types using
59. perts by phone discussion forum or email Training Visit ni com custed for self paced tutorials videos and interactive CDs You also can register for instructor led hands on courses at locations around the world System Integration If you have time constraints limited in house technical resources or other project challenges NI Alliance Program members can help To learn more call your local NI office or visit ni com alliance Appendix C Technical Support and Professional Services NI ELVIS User Manual C 2 ni com Declaration of Conformity DoC A DoC is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity This system affords the user protection for electronic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com hardref nsf Calibration Certificate If your product supports calibration you can obtain the calibration certificate for your product at ni com calibration If you searched ni com and could 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 Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events National
60. power supplies connecting analog output signals 3 12 signal description table 3 8 SUPPLY signal See also variable power supplies signal description table 3 8 support technical C 1 SYNC_OUT signal See also function generator connecting analog output signals 3 12 signal description table 3 8 system integration services C 1 system power LED figure 3 2 T technical support C 1 telephone technical support C 2 three wire current voltage analyzer SFP overview 2 7 training customer C 1 TRIGGER signal See also oscilloscope connecting analog input signals 3 11 signal description table 3 7 troubleshooting resources C 1 two wire current voltage analyzer SFP overview 2 7 U user configurable I O BANANA signals 3 8 BNC lt 1 2 gt signals 3 8 BNC lt 1 2 gt signals 3 8 DSUB pin lt 0 9 gt signals 3 9 DSUB shield 3 9 LED lt 0 7 gt signals 3 9 user configurable I O connecting signals 3 13 Index NI ELVIS User Manual I 8 ni com V variable power supplies hardware controls 3 3 hardware controls figure 3 2 LabVIEW API 4 5 overview 2 7 signal descriptions table 3 8 specifications negative supply A 6 positive supply A 6 virtual instrumentation 1 3 VOLTAGE HI signal description table 3 7 VOLTAGE HI signal See also DMM connecting analog input signals 3 11 VOLTAGE LO signal description table 3 8 VOLTAGE LO signal See also DMM connecting analog input signals
61. r The input for channel A of the Oscilloscope CH B BNC Connector The input for channel B of the Oscilloscope Trigger BNC Connector The input to the trigger of the Oscilloscope NI ELVIS Protection Board NI ELVIS protects the DAQ device installed in the desktop computer by means of a protection board located inside the NI ELVIS Benchtop Workstation This removable protection board provides short circuit protection from unsafe external signals Removing the protection board enables you to quickly replace a nonfunctioning board with a replacement unit The components on the protection board are easily obtained from Chapter 3 Hardware Overview National Instruments Corporation 3 5 NI ELVIS User Manual electronics vendors and thus can be serviced without sending the board to NI for repairs Refer to Appendix B Protection Board Fuses for more information about changing the fuses on the NI ELVIS Protection Board NI ELVIS Prototyping Board This section describes the NI ELVIS Prototyping Board and how you can use it to connect circuits to the NI ELVIS This section also describes the signals that you can connect to the NI ELVIS from the prototyping board and the connectors you can use to do so The prototyping board connects to the benchtop workstation with a standard PCI connector so you can create custom PCBs to interact with NI ELVIS The prototyping board exposes all the signal terminals of the NI ELVIS to
62. r Software mode Function Selector Selects what type of waveform is generated NI ELVIS can generate sine square or triangle waves Amplitude Knob Adjusts the peak amplitude of the generated waveform Coarse Frequency Knob Sets the range of frequencies the Function Generator can output Chapter 3 Hardware Overview NI ELVIS User Manual 3 4 ni com Fine Frequency Knob Adjusts the output frequency of the Function Generator For more information about the software controls for the function generator refer to the NI ELVIS Online Help DMM Connectors Caution By connecting different signals to both the DMM terminals on the prototyping board and the DMM connectors on the control panel you are shorting them together potentially damaging the circuit on the prototyping board CURRENT Banana Jacks HI The positive input to all the DMM functionality except measuring voltage LO The negative input to all the DMM functionality except measuring voltage VOLTAGE Banana Jacks HI The positive input for voltage measurements LO The negative input for voltage measurements Oscilloscope Scope Connectors Caution By connecting different signals to the Scope terminals on the prototyping board and the Scope connectors on the control panel you are shorting them together potentially damaging the circuit on the prototyping board CH A BNC Connecto
63. ramming protocol for the instrument The NI ELVIS instrument driver is a collection of LabVIEW VIs that provides an API for controlling the NI ELVIS hardware The API allows the user to connect VIs in a logical manner to control the instruments of the NI ELVIS Benchtop Workstation the Variable Power Supplies Function Generator DMM and DIO The general programming flow when using the NI ELVIS instrument driver is Initialization Action Close The initialization VIs establish communication with the NI ELVIS Benchtop Workstation and configure the selected components to a defined state A reference refnum to the specific component is generated and then used by subsequent VIs to perform the desired actions The instrument driver handles the resource sharing that occurs between the components of the NI ELVIS For example the DMM uses the Function Generator for its measurements Without resource management if an application using the Function Generator is running when a DMM application runs one or both applications might return incorrect results To prevent this problem if the driver detects that a resource is in use an error is returned Resource management is valid within one LabVIEW process only Therefore if an application executable built using the NI ELVIS instrument driver is running at the same time as another application using the driver LabVIEW development environment resource management is not in affect across the processe
64. rate the product in such an environment it must be in a suitably rated enclosure If you need to clean the product use a soft nonmetallic brush Make sure that the product is completely dry and free from contaminants before returning it to service Operate the product only at or below Pollution Degree 1 Pollution is foreign matter in a solid liquid or gaseous state that can reduce dielectric strength or surface resistivity The following is a description of pollution degrees Pollution Degree 1 means no pollution or only dry nonconductive pollution occurs The pollution has no influence Pollution Degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expected Pollution Degree 3 means that conductive pollution occurs or dry nonconductive pollution occurs that becomes conductive due to condensation You must insulate signal connections for the maximum voltage for which the product is rated Do not exceed the maximum ratings for the product Do not install wiring while the product is live with electrical signals Do not remove or add connector blocks when power is connected to the system Avoid contact between your body and the connector block signal when hot swapping modules Remove power from signal lines before connecting them to or disconnecting them from the product Chapter 1 DAQ System Overview NI ELVIS User Man
65. rs description 3 4 location figure 3 2 internally using the DACs caution 3 12 LabVIEW API 4 7 overview 2 5 signal descriptions table 3 7 3 8 Index NI ELVIS User Manual I 4 ni com specifications current measurement A 3 voltage measurement A 4 DO lt 0 7 gt signals connecting digital I O signals 3 13 documentation conventions used in manual ix online library C 1 related documentation x drivers instrument C 1 software C 1 DSA SFP overview 2 6 DSUB PIN signals signal description table 3 9 DSUB SHIELD signal signal description table 3 9 E electromagnetic compatibility specifications A 7 ELVIS components figure 2 2 hardware overview 2 2 LabVIEW API 2 7 overview 2 1 software overview 2 3 example code C 1 F FGEN See function generator FM_IN signal See also function generator connecting analog output signals 3 12 signal description table 3 8 FREQ_OUT signal connecting counter timer signals 3 13 signal description table 3 9 FUNC_OUT signal See also function generator connecting analog output signals 3 12 signal description table 3 8 function generator connecting signals 3 12 hardware controls description 3 3 controls location figure 3 2 LabVIEW API 4 6 overview 2 6 signal descriptions table 3 8 specifications A 4 fuses debugging the protection board B 2 G GLB_RESET signal See also digital I O connecting digital I O signals 3 13 signal de
66. rts locator diagram 2 2 using in academic disciplines 2 7 2 8 normal mode communications switch 3 1 O online technical support C 1 oscilloscope connectors figure 3 2 connectors on benchtop workstation 3 4 overview 2 6 signal descriptions table 3 7 specifications A 5 P PFI lt 1 2 gt signals signal description table 3 7 PFI lt 5 7 gt signals signal description table 3 7 phone technical support C 2 Index NI ELVIS User Manual I 6 ni com power supply DC See DC power supply prototyping board 3 6 variable See variable power supplies professional services C 1 programmable function I O PFI lt 1 2 gt signals 3 7 PFI lt 5 7 gt signals 3 7 RESERVED signal 3 7 SCANCLK signal 3 7 programming examples C 1 programming NI ELVIS NI DAQ analog input 4 2 overview 4 1 using LabVIEW DIO 4 7 DMM 4 7 function generator 4 6 overview 4 4 Scope 4 8 variable power supplies 4 5 using NI DAQ analog output 4 2 overview 4 1 timing and control I O 4 3 protection board debugging B 2 overview 3 4 reinstalling B 4 removing the protection board B 1 prototyping board connecting signals analog input DMM 3 11 generic analog input 3 10 grounding 3 9 oscilloscope 3 11 resource conflicts 3 11 analog output DC power supplies 3 12 function generator 3 12 generic analog output 3 12 variable power supplies 3 12 counter timer signals 3 13 digital I O 3 13 overview 2 3 3 5 pa
67. rts locator diagram 3 6 power supply 3 6 power switch figure 3 2 signal descriptions table 3 7 pulse generator DAQ hardware in bypass mode 3 2 R RD_ENABLE signal See also digital I O connecting digital I O signals 3 13 signal description table 3 8 related documentation x removing the protection board B 1 requirements DAQ hardware 3 1 RESERVED signal signal description table 3 7 S safety information 1 5 safety specifications A 7 SCANCLK signal signal description table 3 7 Scope See oscilloscope SFP instruments ARB 2 4 bode analyzer 2 5 digital bus reader SFP 2 5 digital bus writer 2 5 DMM 2 5 DSA 2 6 Index National Instruments Corporation I 7 NI ELVIS User Manual FGEN 2 6 impedance analyzer 2 6 instrument launcher 2 4 overview 2 3 Scope 2 6 three wire current voltage analyzer 2 7 variable power supplies 2 7 signal connections I O connector signal descriptions table 3 7 software drivers C 1 software mode function generator 3 3 variable power supplies 3 3 specifications analog input A 1 bode analyzer A 1 DC power supplies 5 V supply A 2 15 V supply A 2 DMM current measurement A 3 voltage measurement A 4 electromagnetic compatibility A 7 function generator A 4 oscilloscope A 5 safety A 7 variable power supplies negative supply A 6 positive supply A 6 SPF instruments two wire current voltage analyzer 2 7 SUPPLY signal See also variable
68. s and incorrect behavior can occur Chapter 4 Programming NI ELVIS National Instruments Corporation 4 5 NI ELVIS User Manual The NI ELVIS Online Help includes function reference topics for each instrument API that lists and describes parameters for each instrument VI Note To ensure correct behavior with programs that use NI ELVIS with the instrument driver first you must close the SFP instruments You can find other examples for using NI ELVIS for AI AO and counter timer applications by launching LabVIEW and selecting Find Examples Hardware Input and Output DAQ and then the type of example or you can find examples by selecting Find Examples and then searching for NI ELVIS Variable Power Supplies The NI ELVIS Benchtop Workstation has two variable power supplies that can be controlled using the NI ELVIS instrument driver The driver allows the user to select which supply to control and to set its output voltage A simple variable power supply application is shown in Figure 4 1 Figure 4 1 Simple Variable Power Supply Application The supply to control is selected during initialization and then updated continuously in the loop When the loop ends the supply reference is closed and the output is set to zero The DAQ device number is provided to identify the DAQ device that is cabled to the NI ELVIS Benchtop Workstation Refer to the NI ELVIS Online Help for more information about the specific VIs in the variable power s
69. s a LabVIEW program that models the appearance and function of a physical instrument The flexibility modular nature and ease of use programming possible with LabVIEW makes it popular in top university laboratories With LabVIEW you can rapidly create applications using intuitive graphical development and add user interfaces for interactive control Scientists and engineers can use the straightforward I O functionality of LabVIEW along with its analysis capabilities LabVIEW can also be used in the classrooms to solve purely analytical or numerical problems For more information on programming with LabVIEW refer to Getting Started with LabVIEW and the LabVIEW Measurements Manual available at ni com manuals LabVIEW Help is available by selecting Help VI Function and How To Help from the LabVIEW block diagram or front panel or you can select Help Search the LabVIEW Bookshelf from the block diagram or front panel to display other relevant LabVIEW documentation Virtual Instrumentation Virtual instrumentation is defined as the combination of measurement and control hardware and application software with industry standard computer technology to create user defined instrumentation systems Virtual instrumentation provides an ideal platform for developing instructional curriculum and conducting scientific research In an instructional laboratory course students perform various experiments that combine measurements automation and control
70. s at a given frequency Oscilloscope Scope This instrument provides the functionality of the standard desktop instrument found in typical undergraduate laboratories The NI ELVIS Scope SFP has two channels and provides scaling and position adjustment knobs along with a modifiable timebase You also can choose trigger source and mode settings Depending on the DAQ device cabled to the NI ELVIS hardware you can choose between digital or analog hardware triggering You can connect to the NI ELVIS Scope SFP from the NI ELVIS Prototyping Board or from the BNC connectors on the front panel of the benchtop workstation The FGEN or DMM signals can be routed to this instrument In addition this computer based scope display has the ability to use cursors for accurate screen measurements The sampling rate of the Oscilloscope is determined by the maximum sampling speed of the DAQ device installed in the computer attached to the NI ELVIS hardware Refer to the DAQ device user manual for information about the type of triggering supported on the device and for the specifications for the maximum sampling speed of the device Chapter 2 NI ELVIS Overview National Instruments Corporation 2 7 NI ELVIS User Manual Two Wire and Three Wire Current Voltage Analyzers These instruments allow you to conduct diode and transistor parametric testing and view current voltage curves The two wire instrument offers full flexibility in setting parameters
71. s of the signal PFI programmable function input potentiometer an electrical device the resistance of which can be manually adjusted used for manual adjustment of electrical circuits and as a transducer for linear or rotary position R RD_ENABLE read enable signal DIO output signal that indicates when data is being read from the read bus referenced signal sources signal sources with voltage signals that are referenced to a system ground such as the earth or a building ground Also called grounded signal sources resistance the resistance to the flow of electric current One ohm is the resistance through which one volt of electric force causes one ampere to flow rms root mean square S s seconds S samples S s samples per second used to express the rate at which a DAQ device samples an analog signal Glossary NI ELVIS User Manual G 8 ni com SCANCLK scan clock signal Scope abbreviation for oscilloscope SYNC_OUT TTL signal of the same frequency of the function generator T TIO timing I O TRIG trigger signal trigger any event that causes or starts some form of data capture TRIGGER trigger input signal for the oscilloscope TTL transistor to transistor logic V V volts VI virtual instrument a combination of hardware and or software elements typically used with a PC that has the functionality of a classic stand alone instrument VOLTAGE input signals for the DMM vol
72. s to flow to or from a particular signal on the prototyping board the fuse or resistor breaks down opening the connection electrically To debug the protection board you need a DMM with an ohmmeter Complete the following steps 1 Verify that the NI ELVIS is in Standby mode The Standby switch is located on the back of the NI ELVIS benchtop workstation 2 Remove the protection board assembly from the rest of the NI ELVIS workstation For instructions on removing the protection board refer to the Removing the Protection Board section 3 Check the fuses since these signals are much more likely to have been overloaded To check the fuse verify that the resistance across the fuse is less than 50 If all the fuses are operational proceed to the resistor packs 4 Verify that the resistance across each resistor is 100 5 One resistor is located between each of the following pairs of pins 1 and 16 2 and 15 3 and 14 4 and 13 5 and 12 6 and 11 7 and 10 and 8 and 9 The resistor packs are socketed so that you can easily replace resistors Appendix B Protection Board Fuses National Instruments Corporation B 3 NI ELVIS User Manual Caution Before restoring power to the circuit be sure the problem that caused the protection board component to fail has been resolved to keep the same fuse or resistor from failing again If you need to replace a fuse use the fuse types listed in Table B 1 Caution For con
73. scription table 3 8 GROUND signal See also DC power supplies variable power supplies connecting analog output signals 3 12 signal description table 3 8 H help professional services C 1 technical support C 1 I I O connectors I O connector descriptions 3 13 location figure 3 6 signal descriptions table 3 7 impedance analyzer SFP overview 2 6 Index National Instruments Corporation I 5 NI ELVIS User Manual installation category 1 6 instrument drivers C 1 instrument launcher 2 4 instrumentation virtual 1 3 K KnowledgeBase C 1 L LabVIEW NI ELVIS software instruments 2 3 overview 1 3 programming NI ELVIS digital I O 4 7 DMM 4 7 FGEN 4 6 overview 4 4 variable power supplies 4 5 virtual instrumentation 1 3 LATCH signal See also digital I O connecting digital I O signals 3 13 signal description table 3 8 launcher instrument 2 4 LED lt 0 7 gt signals connecting user configurable I O signals 3 13 signal description table 3 9 M manual mode function generator 3 3 variable power supplies 3 3 N National Instruments calibration certificate C 2 customer education C 1 Declaration of Conformity C 2 professional services C 1 system integration services C 1 technical support C 1 worldwide offices C 2 NI ELVIS configuring 2 4 instrument launcher 2 4 overview 1 4 benchtop workstation 2 3 DAQ hardware 1 2 LabVIEW 1 3 prototyping board 2 3 pa
74. surement amp Automation Explorer Help for DAQ which you can access by launching MAX then selecting Help Help Topics NI DAQ ACH lt 0 5 gt on the NI ELVIS Prototyping Board directly connect to corresponding AI channels on the DAQ device ACH lt 0 5 gt can be used as normal input channels for any existing DAQ examples or for when you program with the LabVIEW Data Acquisition VIs ACH5 is also used for measurements by the following NI ELVIS software instruments Oscilloscope DMM DSA Impedance Analyzer Two Wire Current Voltage Analyzer and Three Wire Current Voltage Analyzer ACH5 might be unavailable if these software instruments are running Refer to the NI ELVIS Prototyping Board section of Chapter 3 Hardware Overview for an illustration of signal connections on the prototyping board Typical AI measurements include buffered continuous acquisitions and finite acquisitions with a start trigger For more information on how to perform an AI acquisition using NI DAQ refer to the NI DAQ documentation that shipped with the DAQ device Caution ACH3 and ACH4 are used for Oscilloscope measurements on CH A and CH B respectively Do not connect signals to these channels on the prototyping board and the front panel BNC Scope connectors at the same time Analog Output NI ELVIS allows access to the two analog outputs of a DAQ device through connectors on the prototyping board The AO signals labeled DAC0 and DAC1 connect to the signals
75. t 1 2 gt PFI lt 5 7 gt Programmable Function I O Programmable Function Input PFI 1 through 2 and 5 through 7 Programmable function I O of the DAQ device For more information about the PFI lines refer to the DAQ device user manual SCANCLK Programmable Function I O Scan Clock Connected to the SCANCLK pin of the DAQ device For more information about the SCANCLK signal refer to the DAQ device user manual RESERVED Programmable Function I O Connected to the EXTSTROBE pin of the DAQ device For more information about the EXTSTROBE signal refer to the DAQ device user manual 3 WIRE DMM Three Wire Voltage source for the DMM for three wire transistor measurements CURRENT HI DMM Positive Current Positive input for the DMM for all measurements besides voltage CURRENT LO DMM Negative Current Negative input for the DMM for all measurements besides voltage VOLTAGE HI DMM Positive Voltage Positive input for the DMM voltmeter Chapter 3 Hardware Overview NI ELVIS User Manual 3 8 ni com VOLTAGE LO DMM Negative Voltage Negative input for the DMM voltmeter DAC lt 0 1 gt General AO Analog Channel Output for Channels 0 through 1 Outputs of the DAQ device D A converters DACs For more information about the DAQ device analog output signals refer to the DAQ device user manual FUNC_OUT Function Generator Function Output Output of the Function Generator SYNC_OUT Function Generator
76. t the software components Refer to Figure 2 1 for a diagram of the NI ELVIS system Chapter 2 NI ELVIS Overview NI ELVIS User Manual 2 2 ni com Figure 2 1 The NI ELVIS System NI ELVIS Hardware The following sections briefly describe the hardware components of the NI ELVIS For more specific information about these components refer to Chapter 3 Hardware Overview 1 Computer Running LabVIEW 2 DAQ Device 3 68 Pin E Series Cable 4 NI ELVIS Prototyping Board 5 NI ELVIS Benchtop Workstation 1 4 5 3 2 Chapter 2 NI ELVIS Overview National Instruments Corporation 2 3 NI ELVIS User Manual NI ELVIS Benchtop Workstation The benchtop workstation and the DAQ device together create a complete laboratory system The workstation provides connectivity and functionality The control panel on the workstation provides easy to operate knobs for the function generator and variable power supplies and it offers convenient connectivity in the form of BNC and banana style connectors to the NI ELVIS Scope SFP and NI ELVIS DMM SFP The NI ELVIS software routes signals in the NI ELVIS Benchtop Workstation between the SFP instruments For example the output of the function generator may be routed to a specific channel of the DAQ device and ultimately acquired on a desired channel of the NI ELVIS Scope SFP The benchtop workstation also contains a protection board that protects the DAQ device from possible damage r
77. the Waveform Editor software which is included with the NI ELVIS software You can load waveforms created with the NI Waveform Editor into the ARB SFP to generate stored waveforms Refer to the NI ELVIS Online Help for more information about the Waveform Editor Since a typical DAQ device has two AO channels two waveforms may be simultaneously generated You can choose continuous output or a one shot output The minimum output rate of the NI ELVIS ARB SFP is determined by the maximum update rate of the DAQ device connected to the NI ELVIS hardware Refer to the DAQ device user manual for these specifications Chapter 2 NI ELVIS Overview National Instruments Corporation 2 5 NI ELVIS User Manual Bode Analyzer By combining the frequency sweep feature of the function generator and the AI capability of the DAQ device a full function Bode Analyzer is available with NI ELVIS You can set the frequency range of the instrument and choose between linear and dB display scales Digital Bus Reader This instrument reads digital data from the NI ELVIS digital input DI bus You can either continuously read from the bus or you can take a single reading Digital Bus Writer This instrument updates the NI ELVIS digital output DO bus with user specified digital patterns You can manually create a pattern or select predefined patterns such as ramp toggle or walking ones This instrument can either continually output a pattern or just p
78. the prototyping board and the DMM connectors on the control panel you are shorting them together potentially damaging the circuit on the prototyping board DMM Both the CURRENT and VOLTAGE inputs are available on the prototyping board along with an additional terminal for three wire transistor measurements The differential voltmeter inputs are labeled VOLTAGE HI and VOLTAGE LO The rest of the functionality of the DMM is available through the CURRENT HI and CURRENT LO pins The 3 WIRE pin is used for three terminal device measurements in conjunction with the CURRENT HI and CURRENT LO pins Caution By connecting different signals to the Scope terminals on the prototyping board and the Scope connectors on the control panel you are shorting them together potentially damaging the circuit on the prototyping board Oscilloscope The inputs of the Oscilloscope are available on the prototyping board as CH lt A B gt CH lt A B gt and TRIGGER CH lt A B gt are directly connected to ACH3 and ACH4 respectively on the DAQ device Refer to the Generic Analog Input section for more information about resource conflicts and grounding Chapter 3 Hardware Overview NI ELVIS User Manual 3 12 ni com Connecting Analog Output Signals This section describes how to connect the AO signals on the prototyping board Generic Analog Output The NI ELVIS provides access to the two DAQ device DACs at the DAC0 and DAC1 terminals These ch
79. tinued protection against fire replace only with fuses of the same type and rating Refer to the Table B 1 for fuse types Caution The fuses on the NI ELVIS are glass Use care when removing the fuses to prevent injury from broken glass Table B 1 NI ELVIS Fuse Information Fuse Rating Fuse Type Manufacturer 0 5 A 250 V 5 20 mm Slow acting LittelFuse 0 5 A 250 V 2AG Fast acting LittelFuse 2 A 250 V 3AG Fast acting LittelFuse Appendix B Protection Board Fuses NI ELVIS User Manual B 4 ni com Figure B 2 shows the location of the different fuses for the NI ELVIS hardware and the location of the resistor packs Figure B 2 Parts Locator Diagram for NI ELVIS Protection Board Reinstalling the Protection Board Reinstall the NI ELVIS Protection Board before resuming use of the NI ELVIS To replace the protection board complete the following steps 1 Reinsert the PCI connector of the protection board into the benchtop workstation rear connector 2 Tighten the four captive screws located on the back of the protection board 3 Plug in the 68 pin cable and the power supply 4 Power on the NI ELVIS 1 DAC lt 0 1 gt Fuses 2 3 WIRE Fuse 3 5 V Fuse 4 15 V Fuses 5 Variable Power Supplies Fuses 6 Resistor Packs 7 CURRENT Fuses 3 WIRE DAC0 DAC1 CURRENT HI TO PROTOTYPING BOARD CURRENT HI TO FRONT PANEL CURRENT LO TO PROTOTYPING BOARD CURRENT LO TO FRONT PANEL VAR
80. tmeter Vp p peak to peak voltage W waveform multiple voltage readings taken at a specific sampling rate WR_ENABLE DIO output signal that indicates data is being written to the write bus National Instruments Corporation I 1 NI ELVIS User Manual Index Symbols 5 V 5 V power supply prototyping board power 3 6 specifications A 2 5V signal See also DC power supplies connecting analog output signals 3 12 signal description table 3 8 15 V 15 V signal See also DC power supplies signal description table 3 8 15 V signal See also DC power supplies connecting analog output signals 3 12 signal description table 3 8 15 V power supply prototyping board power 3 6 specifications A 2 15 V signal connecting analog output signals 3 12 Numerics 3 WIRE signal See also DMM connecting analog input signals 3 11 signal description table 3 7 A academic use of NI ELVIS 2 7 2 8 ACH lt 0 5 gt signals analog input signal mapping table 3 10 signal description table 3 7 ACH lt 0 5 gt signals analog input signal mapping table 3 10 signal description table 3 7 ADDRESS lt 0 3 gt signals See also digital I O signal description table 3 8 AIGND signal analog input signal mapping table 3 10 connecting analog input signals 3 10 signal description table 3 7 AISENSE signal analog input signal mapping table 3 10 connecting analog input signals 3 10 signal descript
81. ual 1 6 ni com Operate the product at or below the installation category1 marked on the hardware label Measurement circuits are subjected to working voltages2 and transient stresses overvoltage from the circuit to which they are connected during measurement or test Installation categories establish standard impulse withstand voltage levels that commonly occur in electrical distribution systems The following is a description of installation categories Installation Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS3 voltage This category is for measurements of voltages from specially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Installation Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that provided by a standard wall outlet for example 115 V for U S or 230 V for Europe Examples of Installation Category II are measurements performed on household appliances portable tools and similar product Installation Category III is for measurements performed in the building installation at the distribution level This category refers to measurements on hard wir
82. ument driver The driver allows the user to configure the digital operation and read or write 8 bit digital data A simple application to perform digital input is shown in Figure 4 4 Chapter 4 Programming NI ELVIS NI ELVIS User Manual 4 8 ni com Figure 4 4 Simple Digital I O Input Application The digital operation is configured the digital data is returned and then the DIO reference is closed A simple application to perform digital output is shown in Figure 4 5 Figure 4 5 Simple Digital I O Output Application The digital operation is configured the digital data is output and then the DIO reference is closed The DAQ device number is provided to identify the DAQ device that is cabled to the NI ELVIS Benchtop Workstation Refer to the NI ELVIS Online Help for more information about the specific VIs in the DIO API Scope The Oscilloscope component of NI ELVIS is not addressed in the instrument driver since you can use NI DAQ to directly access its functionality National Instruments Corporation A 1 NI ELVIS User Manual A Specifications This appendix lists the specifications of the NI ELVIS These specifications are typical after a 30 minute warm up time at 25 C unless otherwise noted Analog Input Refer to the Analog Input section of the Specifications of the DAQ device user manual Arbitrary Waveform Generator1 Number of output channels 2 Maximum frequency
83. uments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cover damages defects malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be commercially reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks LabVIEW National Instruments NI ni com and NI DAQ are trademarks of National Instruments Corporation Product and company names mentioned herein are trademarks or trade names of their respective companies Patents For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS 1 NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICA
84. unications switch refer to the Using the DAQ Hardware in Bypass Mode section Variable Power Supplies Controls Note You can control the variable power supplies through either the hardware controls on the benchtop workstation Manual mode or the controls on the NI ELVIS Variable Power Supplies SFP Software mode You can only use the controls described in the following section when the variable power supplies are in Manual mode Supply Controls Manual Switch Controls whether the negative supply is in Manual mode or Software mode Voltage Adjust Knob Controls the output of the negative supply The negative supply can output between 12 and 0 V Supply Controls Manual Switch Controls whether the positive supply is in Manual mode or Software mode Voltage Adjust Knob Controls the output of the positive supply The positive supply can output between 0 and 12 V For more information about the software controls for the Variable Power Supplies refer to the NI ELVIS Online Help Function Generator Controls Note You can control the function generator through either the hardware controls on the benchtop workstation Manual mode or the controls on the NI ELVIS FGEN SFP Software mode You can only use the controls described in the following section when the function generator is in Manual mode Manual Switch Controls whether the Function Generator is in Manual mode o
85. upply API Chapter 4 Programming NI ELVIS NI ELVIS User Manual 4 6 ni com Function Generator The NI ELVIS Benchtop Workstation has a function generator that can be controlled using the NI ELVIS instrument driver The driver allows the user to update the frequency peak amplitude DC offset and type of the waveform that the function generator outputs A simple application is shown in Figure 4 2 Figure 4 2 Simple Function Generator Application The output of the function generator is set to zero during initialization and then the waveform parameters are continuously updated in the loop When the loop ends the function generator reference is closed and the output is set to zero The DAQ device number is provided to identify the DAQ device that is cabled to the NI ELVIS Benchtop Workstation The advanced features of the Function Generator the Tuning and AO Modulation controls can be configured using the FGEN Configure VI By default both these features are disabled The refnum that is passed between the API VIs contains information about the current configuration state If the configuration VI is used in a loop you should wire the refnum to shift registers so that the refnum information persists between loops Refer to the NI ELVIS Online Help for more information about the specific VIs in the function generator API Chapter 4 Programming NI ELVIS National Instruments Corporation 4 7 NI ELVIS User Manual Digital Mu
86. urrent Fused at 2 A Output voltage 5 V at 5 max Line regulation 0 50 max Ripple and noise 1 Digital I O Digital input resolution 8 bits Digital output resolution 8 bits Digital addressing 4 bits 1 Total current drawn from 15 V supply and variable power supplies cannot exceed 500 mA Appendix A Specifications National Instruments Corporation A 3 NI ELVIS User Manual DMM Capacitance Measurement Accuracy 1 Range 50 pF 500 F in three ranges Test frequency 120 or 950 Hz software selectable Max test frequency voltage 1 Vp p sine wave software selectable Continuity Measurement Resistance threshold 15 max software selectable Test voltage 3 89 V software selectable Current Measurement Accuracy AC 0 25 3 mA1 2 DC 0 25 3 mA2 Common mode voltage 20 V max Common mode rejection

Download Pdf Manuals

Related Search

Related Contents

DOUCHETTE À BOUTON POUSSOIR  仕 様 書 - 目黒区社会福祉事業団  User Guide - Motorola Solutions  RCA CC6151 Camcorder User Manual  Bedienungsanleitung - THERMO      DinoXcope User Manual.cwk  

Copyright © All rights reserved. Failed to retrieve file