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Getting Started with NI SignalExpress Tektronix Edition

1. Figure 3 7 Autodetect Tektronix AFG3000 Series Arbitrary Function Generator Ethernet Connection 3 Click the Autodetect button on the VISA Resource tab to scan the local subnet for connected Tektronix AFG3000 series arbitrary function generators If NI SignalExpress Tektronix Edition detects a Tektronix AFG3000 series arbitrary function generator on the local subnet NI SignalExpress Tektronix Edition displays the instrument address and connects to the Tektronix AFG3000 series arbitrary function generator Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments B Note You must manually enter the instrument address when you connect to a Tektronix AFG3000 series arbitrary function generator that is not on the local subnet Refer to the NI Express Workbench Help for information about how to manually connect to a Tektronix AFG3000 series arbitrary function generator by selecting Help Express Workbench Help clicking the Search tab and entering Tek AFG3000 4 Click the Run button shown at left to start signal generation using the Run Tektronix AFG3000 series arbitrary function generator Connecting over GPIB Complete the following steps to connect and control the Tektronix AFG3000 series arbitrary function generator over GPIB 1 Connect the Tektronix AFG3000 series arbitrary function generator to your computer using a GPIB cable 2 Launch NI
2. Complete the following steps to configure the Distortion and Amplitude and Levels steps 1 Double click the Distortion step in the Project View The Step Setup dialog box for the Distortion step appears as shown in Figure 4 3 If the Step Setup dialog box is docked click the Dock button shown at left on the toolbar to undock the Step Setup dialog box Getting Started with NI SignalExpress Tektronix Edition 4 4 ni com Chapter 4 Working with Projects Step Setup td Close EP Lock To Step Dock 5 Show Help Exported Signal 2 Amplitude m e Ii T 1 I 3m Time s Exported Power Spectrum o D v 3 k 2 c 0 I 10k 15k 20k 25k 30k 35k 40k 45k 50k Frequency Hz Input Output Configuration Advanced X Autoscale magnitude Measurement Setup Measurement Results Distortion types Highest harm Fund frequency THD Harmonic Only w 19 Eal 3 0020013k 0 3616 Export signals THD SINAD dB THD Noise Input Signal v 0 0 Figure 4 3 Distortion Step Setup Dialog Box On the Configuration tab the settings indicate that the Distortion step receives a time domain waveform signal as an input performs a power spectrum on the signal to convert it to the frequency domain and computes the total harmonic distortion THD and fundamental frequency of the signal The Distortion step generates the following three measurements as outputs the spectrum the THD and the fu
3. Turn on the Tektronix AFG3000 series arbitrary function generator 2 Using a USB device cable plug the Type B device side connector into the USB device port on the back of the Tektronix AFG3000 series arbitrary function generator Connect the Type A host side connector to your computer After you complete the connections Windows detects that you have connected a new device to the computer and prompts you to install the driver for the AFG3000 3 Click the Next button in the dialog boxes that follow to finish the installation of the Tektronix AFG3000 series arbitrary function generator Sy Note You only need to perform Step 3 the first time the you plug a Tektronix AFG3000 series arbitrary function generator into the computer Subsequent connections immediately launch the dialog box discussed in Step 4 Getting Started with NI SignalExpress Tektronix Edition 3 6 ni com Chapter 3 Connecting and Controlling Instruments 4 Windows prompts you with a dialog box as shown in Figure 3 5 indicating that the Tektronix AFG3000 series arbitrary function generator has been detected and prompts for the action to take If Control Instrument using NI SignalExpress Tektronix Edition is not selected click Control Instrument using NI SignalExpress Tektronix Edition and then click the OK button Test and Measurement Device Windows can perform the same action each time you BB connect this device What do you want Windows to do
4. Buw Control Instrument using NI SignalE xpress Tektronix Edition Take no action Cl Always perform the selected action Cancel Figure 3 5 USB Plug and Play Dialog Box 5 NI SignalExpress Tektronix Edition launches and provides a live connection to the Tektronix AFG3000 series arbitrary function generator as shown in Figure 3 6 National Instruments Corporation 3 7 Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments Of untitled 1 Express Workbench BAX File Edit View Tools AddStep Window Help ee eF AddStep x Undo oo B Stop gt Yo Reset All E sync to AFG E Lock To Step FS Dock 5 Show Help lange E m 5B Step Setup IEA Data View Tek AFG3000 600m 400m 200m 0 200m 400m 600m 1 1 1 1 1 1 1 0 250n 500n 750n lu 1 25u 1 5u 1 75u 1 999u Time s p Function Run Mode VISA Resource Execution Control Tektronix Channel Configuration Amplitude V Function Frequency Hz Sine 1M CHANNEL 1 a Amplitude vpp CHANNEL 2 aa Phase deg m o Enable channel Offset v 0 Load impedance Ohms Noise add Output 50 0 external add Figure 3 6 Live Acquisition from Tektronix AFG3000 Series Arbitrary Function Generator Connecting over Ethernet Before you begin this section refer to the AFG3000 Series Quick Start User Manu
5. Input Output tab to display the list of possible inputs and outputs for this step as shown in Figure 4 4 Getting Started with NI SignalExpress Tektronix Edition 4 6 ni com Chapter 4 Working with Projects a E Cose y Re Input Signal t Amplitude and Levels EP Lock To Step FS Dock 5 Show Help Amplitude Input Output Input signal FX8 distorted sinewave w Export RMS value i 1 I L im 4m Autoscale amplitude Configuration Export DC value C Export peak value C Export peak value C Export peak peak value D National Instruments Corporation Figure 4 4 Amplitude and Levels Step Setup Dialog Box Place checkmarks in the Export peak value Export peak value and Export peak peak value checkboxes to configure the Amplitude and Levels step to return three additional measurements Three additional outputs are now visible in the Project View Click the Close button shown at left in the Step Setup dialog box to close the Amplitude and Levels Step Setup dialog box Drag the three new outputs peak peak and peak peak from the Project View to the Data View to display the scalar measurements Click the Stop button shown at left to stop the project When you click the Stop button the project stops running after completing the current cycle of operations or the current iteration 4 7 Getting Started with NI SignalExpress Tektronix Edition Chapter 4 Working
6. Projects with LabVIEW for more information about importing LabVIEW VIs as steps Getting Started with NI SignalExpress Tektronix Edition 1 2 ni com Getting Started with NI SignalExpress Tektronix Edition This chapter provides information about NI SignalExpress Tektronix Edition system requirements installation instructions version availability and available licensing options Installing NI SignalExpress Tektronix Edition Before you begin the exercises in this manual you must install NI SignalExpress Tektronix Edition on your computer The NI SignalExpress Tektronix Edition setup program installs the software in 10 minutes Minimum System Requirements To run NI SignalExpress Tektronix Edition National Instruments recommends that your system meet the following requirements e 256 MB of memory 128 MB minimum e Pentium 4 processor or equivalent Pentium III or Celeron 600 MHz minimum Installation Instructions Complete the following steps to install NI SignalExpress Tektronix Edition on Windows 2000 XP 1 National Instruments strongly recommends that you exit all programs before you run the NI SignalExpress Tektronix Edition installer Applications that run in the background such as virus scanning utilities might cause the installer to take longer than average to complete 2 Log on as an administrator or as a user with administrator privileges 3 Insert the NI SignalExpress Tektronix Edition CD and follo
7. SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition 3 Click the Add Step button shown at left and select Tektronix Generate Signals Tek AFG3000 The Tektronix AFG3000 series arbitrary function generator Step Setup dialog box launches as shown in Figure 3 8 Getting Started with NI SignalExpress Tektronix Edition 3 10 ni com Chapter 3 Connecting and Controlling Instruments Of Untitled 1 Express Workbench m o X File Edit View Tools AddStep Window Help Hh Add Step x Undo Redo Qe Run Run Once Reset All E Syncto AFG 5 E Lock To Step E Dock 3P Show Help 5B Step Setup Data View 2 Tek AFG3000 Amplitude v 600m 1 1 1 1 1 1 1 1 0 250n 500n 750n lu 1 25u 1 5u 1 75u 1 999u Time s Function Run Mode VISA Resource Execution Control Tektronix Select instrument to use Coast Figure 3 8 Autodetect Tektronix AFG3000 Series Arbitrary Function Generator GPIB Connection 4 Click the Autodetect button on the VISA Resource tab to find and connect to the Tektronix AFG3000 series arbitrary function generator 5 Click the Run button shown at left to start signal generation with the Tektronix AFG3000 series arbitrary function generator National Instruments Corporation 3 11 Getting Started with NI SignalExpress Tekt
8. Signals to Microsoft Excel To export signal data to Microsoft Excel launch Microsoft Excel and drag the output signal of a step in NI SignalExpress Tektronix Edition to a Microsoft Excel spreadsheet Printing Signals To print an image of a graph right click the Data View and select Export Print Display from the shortcut menu Saving Signals as Images To save an image of a graph as a png file right click the Data View and select Export Save as Image from the shortcut menu You can import a png file into Microsoft Word or any other documentation tool Saving Tektronix Scope Images To save an image from your scope to a png file right click the Utilities menu in the Step Setup dialog box and select Save Image You can import a png file into Microsoft Word or any other documentation tool Logging Data to a File You can print graphs of signals and export or save signal data to view it in spreadsheet applications Complete the following steps to save a signal to a file 1 Click the Add Step button and select Analog Load Save Signals Save to ASCII LVM National Instruments Corporation 5 7 Getting Started with NI SignalExpress Tektronix Edition Chapter 5 Working with Signals 2 Click the Signals tab in the Step Setup dialog box and select filtered step from the Input Data pull down menu Select Overwrite from the If file already exists pull down menu 4 Select Generic ASCII txt from the Export file type pull
9. Started with NI SignalExpress Tektronix Edition Chapter 5 Working with Signals For example the Interactive Alignment step can operate only on time domain waveform signals Therefore the step selects the last two time domain signals created in the project as inputs To change the input signals for a step select different signals from the pull down menu of compatible signals in the Input Output tab of the Step Setup dialog box 2 Click the red signal and drag it within the graph You can drag expand and contract signals on the graph 3 Try to align the rising edges of the two signals by dragging a signal within the graph Click a signal to set an anchor point and press and hold the lt Alt gt key while you click and drag the signal around the anchor point This stretches the signal in the x and y directions On the Alignment tab of the Step Setup dialog box the step computes and displays the x and y gain and x and y offset values you need to achieve alignment specifications as you drag the signals 4 Select Auto Step from the Mode pull down menu to align the signals NI SignalExpress Tektronix Edition bases this alignment mode on built in algorithms The lower graph in the Step Setup dialog box displays the difference between the two signals 5 On the Input Output tab place a checkmark in the Export aligned signals checkbox to add the signals to the outputs of the step Click the Close button to close the Step Setup d
10. cable 2 Launch NI SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition 3 Click the Add Step button shown at left and select Tektronix Acquire Signals Tek TDS3000 The Tektronix TDS3000 series oscilloscope Step Setup dialog box launches as shown in Figure 3 10 Getting Started with NI SignalExpress Tektronix Edition 3 14 ni com Chapter 3 Connecting and Controlling Instruments File Edit View Tools AddStep Window Help eF Add Step gt Undo Redo Run Run Once Reset All Mi Autoset 5 E Lock To Step rs Dock 39 Show Help a3 Step Setup I Data View I gt he lt No device gt Vertical Horizontal Trigger Measurements VISA Resource Execution Control Select instrument to use aes Figure 3 10 Autodetect Tektronix TDS3000 Series Oscilloscopes GPIB Connection 4 Click the Autodetect button on the VISA Resource tab to find and connect to the Tektronix TDS3000 series oscilloscope 5 Click the Run button shown at left to start signal acquisition with the Tektronix TDS3000 series oscilloscope National Instruments Corporation 3 15 Getting Started with NI SignalExpress Tektronix Edition Working with Projects You can use NI SignalExpress Tektronix Edition to define measurement procedures by adding and con
11. from the shortcut menu Enter step response and press the lt Enter gt key to rename the output Drag the step response output of the Load from ASCII step to the lower graph A dialog box launches because the two signals come from different sources and run at different rates Click the Yes button to display both signals on the same graph The filtered step signal resembles the rising edge of the step response output as shown in Figure 5 2 5 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 5 Working with Signals y C Program Files Signals wbp Express Workbench J o X File Edit View Tools AddStep Window Help AddStep gt Undo Run gt Run Once Reset All we Add Display 3P Show Help dle fe ta F Create Signal A Step Signal 1 PES step signal A Filter Step Signal 1 E step signal v he filtered step 4 ba l Yu Load from ASCII gt b step response Figure 5 2 Signals of My Signals wbp 11 Select File Save Project to save the project Aligning and Comparing Signals Although the filtered step signal and the step response output both show an overshoot in the rising edge assessing the similarity between the two is difficult because the signals come from different sources and vary in amplitude and timing However you can use the Interactive Alignment step to align and compare two signals so you can choos
12. two or more parameters in unison is a parallel sweep For example if you want to vary the amplitude of a stimulus signal you can run a parallel sweep You can use a parallel sweep to maximize the precision of the acquisition by varying the vertical scale of a Tektronix oscilloscope as you vary the signal level As the signal level increases you can increase the input range of the measurement device to ensure you use the entire resolution for the measurement Running Multi Dimensional Sweeps Run Use multi dimensional or nested sweeps to iterate through one range while you vary another range For example if you want to sweep through frequencies of a stimulus signal at different amplitudes run a nested sweep You can set the amplitude to level 1 and sweep through frequencies then set the amplitude to level 2 and sweep through frequencies and so on You can build a nested sweep by right clicking a Sweep step in a project and selecting Add Dimension from the shortcut menu to add another sweep loop Complete the following steps to run a sample nested sweep project 1 Select File Open navigate to the lt SignalExpressTekEd gt Examples Tutorial directory and double click Nested Sweep wbp Click the Run button shown at left to run the project Each iteration of the inner sweep loop sweeps the frequency of the stimulus signal The outer sweep loop varies the low and high cutoff frequencies of the Filter step Each
13. with Projects Clicking the Abort button completely stops the project without finishing the current iteration 11 Select File Save Project As and save the project as My First Project wbp in the lt SignalExpressTekEd gt Examples Tutorial directory 12 Select File Close Project to close the project Moving and Deleting Steps The steps in NI SignalExpress Tektronix Edition projects depend on input data which means steps can operate only on signals exported from previous steps in the Project View When you click the Input signal pull down menu in the Step Setup dialog box of a step the menu displays only compatible signals exported from a previous step When the output of a step becomes the input of another step the steps become dependent on each other and the two steps execute sequentially at the same rate The first step generates an output signal that the second step must receive as an input before the step can execute You can move a step within a project by dragging the step up or down in the Project View You can delete a step by right clicking the step in the Project View and selecting Delete from the shortcut menu However when you move or delete a step the status of signals in the project changes For example if you delete a step that generates output signals the operation of the project breaks if any of the deleted output signals are inputs for other steps and an error indicator appears in the Project Vi
14. 0 series oscilloscope 2 Using a USB device cable plug the Type B device side connector into the USB device port on the back of the Tektronix DPO4000 series oscilloscope as shown in Figure 3 1 Connect the Type A host side connector to your computer National Instruments Corporation 3 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments Fj PY M7 WN LN L gt Yes as i Figure 3 1 DP04000 USB Connection After completing the connections Windows detects that you have connected a new device to the computer and prompts you to install the driver for the Tektronix DPO4000 series oscilloscope Click the Next button on the following dialog boxes to finish the installation of the Tektronix DPO4000 series oscilloscope driver Note You only need to perform Step 3 the first time you plug the Tektronix DPO4000 series oscilloscope into the computer Subsequent connections immediately launch the dialog box discussed in Step 4 4 Getting Started with NI SignalExpress Tektronix Edition 3 2 Windows prompts you with a dialog box as shown in Figure 3 2 indicating that the Tektronix DPO4000 series oscilloscope has been detected and prompts for the action to take If Control Instrument using NI SignalExpress Tektronix Edition is not selected click Control Instrument using NI SignalExpress Tektronix Edition and then click the OK button ni c
15. IEW VIs written for use in NI SignalExpress Tektronix Edition Getting Started with NI SignalExpress Tektronix Edition 8 2 ni com 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 at ni com support include the following Self Help Resources For answers and solutions visit the award winning National Instruments Web site for software drivers and updates a searchable KnowledgeBase product manuals step by step troubleshooting wizards thousands of example programs tutorials application notes instrument drivers and so on Free Technical Support All registered users receive free Basic Service which includes access to hundreds of Application Engineers worldwide in the NI Developer Exchange at ni com exchange National Instruments Application Engineers make sure every question receives an answer For information about other technical support options in your area Visit ni com services or contact your local office at ni com contact Training and Certification Visit ni com training for self paced training eLearning virtual classrooms interactive CDs and Certification program information 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 r
16. NI SignalExpress Getting Started with NI SignalExpress Tektronix Edition December 2005 4 NATIONAL 374297A 01 N INSTRUMENTS 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 800 433 3488 China 86 21 6555 7838 Czech Republic 420 224 235 774 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 India 91 80 51190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Lebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7 095 783 68 51 Singapore 1800 226 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 02 2377 2222 Thailand 662 278 6777 United Kingdom 44 0 1635 523545 For further support information refer to the Technical Support and Professional Services appendix To comment on National Instruments documentation refer to the National Instruments Web site at ni com info and enter the info code feedback 2005 National Instrumen
17. OFTWARE 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 USE 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 Conv
18. al to properly connect and configure the Tektronix AFG3000 series arbitrary function generator for communication over Ethernet After you connect and configure the arbitrary function generator complete the following steps to access the Tektronix AFG3000 series arbitrary function generator from within NI SignalExpress Tektronix Edition 1 Launch NI SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition Getting Started with NI SignalExpress Tektronix Edition 3 8 ni com National Instruments Corporation 3 9 Chapter 3 Connecting and Controlling Instruments Add Step 2 Click the Add Step button shown at left and select Tektronix Generate Signals Tek AFG3000 The Tektronix AFG3000 series arbitrary function generator Step Setup dialog box launches as shown in Figure 3 7 E Untitled 1 Express Workbench Jog File Edit View Tools AddStep Window Help es sh AddStep x Undo Ov Re Run Run Once Reset All B Sync to AFG 58 Lock To Step F Dock Show Help v gt DE EEn AO Idle fea A Step Setup SF Data View Em Tek AFG3000 600m 400m 200m Eo m 200m q 400m 600m 1 1 1 1 1 1 1 1 0 250n 500n 750n lu 1 25u 1 5u 1 75u 1 999u Time s Sas Function Run Mode VISA Resource Execution Control Tektronix v Autodetect Select instrument to use
19. am Files First Projedt wbp Express Workbench Pex File Edit View Tools Add Step weeny Help y F Add Step Run Run Once Reset All g Add Display lt P Show Help EIE Load from ASCII P ENS distorted sinewave I Ht Amplitude and Levels distorted sinewave lc HAT i i HH ine il uth 1 Execution control buttons 3 Input 5 Project View 2 Step 4 Output 6 Data View Figure 4 1 First Project wbp The left pane is the Project View which presents the order of operations or steps for the project The right pane is the Data View which displays the signal that the project generates and analyzes Running a Project and Displaying Signals NI SignalExpress Tektronix Edition uses the following two execution modes Run and Run Once When you click the Run button NI SignalExpress Tektronix Edition executes all steps in a project continuously until you click the Stop button The Stop button is visible in place of the Run button when a project runs While steps in the project execute the Data View updates continuously While the project runs you can change the measurement configurations and view the results immediately If you modify the configuration of steps while a project runs Getting Started with NI SignalExpress Tektronix Edition 4 2 ni com Chapter 4 Working with Projects NI SignalExpress Tektronix Editi
20. ble sweep operations Complete the following steps to define a frequency range in a sample project to sweep through a filter 1 Select File Open Project navigate to the lt SignalExpressTekEd gt Examples Tutorial directory and double click Sweep wbp 2 Bin 2 Click the Run button shown at left to run the project The project generates a sine wave stimulus signal using the Create Signal step passes it through a bandpass elliptic filter using the Filter step measures the RMS level of the filter output using the Amplitude and Levels step and converts the level to decibels dB using the Formula step The Filter step acts as a simulated unit under test UUT so the project does not use instrumentation However you also can sweep physical signals that a Tektronix signal generator generates National Instruments Corporation 6 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 6 Performing Sweep Measurements Click the Add Step button shown at left and select Operations Sweep Click the Add button in the Step Setup dialog box to display the list of sweep parameters from each step in the project as shown in Figure 6 1 Sweep Parameter Selection ug Available Sweepable Parameters Create Signal stimulus signal sinewave A Amplitude T Block size samples Frequency Hz Offset v Phase deg Sample rate 5 5 Filter response signal Low Cut Off v Figure 6 1 Sweep Para
21. ctronic 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 National Instruments NI ni com and LabVIEW are trademarks of National Instruments Corporation Refer to the Terms of Use section on ni com legal for more information about National Instruments trademarks Tektronix and Tek are registered trademarks of Tektronix Inc Other 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 SURGICAL 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 S
22. down menu You can use a Load Save Signals step to save data to a file every time the project runs 5 On the File Settings tab save the file to lt SignalExpressTekEd gt Examples Tutorial filtered signal txt 6 Click the Close button to close the Step Setup dialog box 7 Select File Save Project to save the project Select File Close Project to close the project Getting Started with NI SignalExpress Tektronix Edition 5 8 ni com Performing Sweep Measurements You can use NI SignalExpress Tektronix Edition to automate measurements to characterize and validate designs by creating sweep operations You can use the sweep measurements to gather data from designs over a range of conditions to document the performance of the designs For example you can use sweep operations to vary the frequency of a stimulus signal or vary the level of a supply voltage while taking measurements to characterize designs This chapter teaches you how to set up sweep operations using the Sweep step in NI SignalExpress Tektronix Edition You learn how to characterize the performance of a filter by sweeping through a range of frequency values and measuring the output of the filter You also learn how to display sweep results and perform multi dimensional sweeps for more complex measurements Defining Sweep Ranges and Outputs You can use the Sweep step in NI SignalExpress Tektronix Edition to define automated measurements for complex repeata
23. e Design Lab eee eee eeeereeeees 1 1 Extending NI SignalExpress Tektronix Edition Projects with LabVIEW 0 0 1 2 Chapter 2 Getting Started with NI SignalExpress Tektronix Edition Installing NI SignalExpress Tektronix Edition eee eee ceeeseeeeeeseeeseeeeeeeeeenseeaes 2 1 Minimum System Requirements eee ceeeeeceeeseceseesecseeeseeseeeasenseeaeenes 2 1 Installation Instructions 0 eee ce eeeeceeeeceeeeseeeeeeseceeeeaeessesseeeeceaecnecesesneeeaeenaes 2 1 NI SignalExpress Tektronix Edition Version Availability 0 eee eeeeeeeseeseeneeees 2 2 NI SignalExpress Tektronix Edition Licensing Options 0 eee eceeseeseeeeseeeeeeeees 2 4 NI SignalExpress Tektronix Edition Base License 0 ec eeeeeeeeeeseeeteeeee 2 4 NI Signal Express Tektronix Edition Professional License eee 2 4 Chapter 3 Connecting and Controlling Instruments Tektronix DPO4000 Series Oscilloscopes eee eeseeseeceeseceseeseeeeeesecnsetseeeeeeeenseraees 3 1 Connecting over USB s cecs s cccaiegsssestcetsiesticuss A EAT 3 1 Connecting over Ethernet ii v ee a ii aei 3 4 Tektronix AFG3000 Series Arbitrary Function Generators sseeeeseesserereeeserereereesre 3 6 Connecting oy er USB scsi erroi riirii aavan EE EEE E ERRE R 3 6 Connecting over Ethern t siisii ss g a tiea 3 8 Connecting over GPIB onreine tnana ni p NEA R As 3 10 Tektronix TDS3000 Series Oscilloscopes sssssessssessessseesesesresrsresrestsresrsre
24. e about the features of NI SignalExpress Tektronix Edition or to start with a project that closely resembles your needs Using Other Instruments with NI SignalExpress Tektronix Edition Along with the Tektronix DPO4000 TDS3000 and AFG3000 series instruments NI SignalExpress Tektronix Edition supports over 400 of the most common standalone and plug in instruments Refer to the NI Express Workbench Help for more information about using other instruments with NI SignalExpress Tektronix Edition by selecting Help Express Workbench Help Related Documentation Refer to the Getting Started with SignalExpress manual to familiarize yourself with the basic features that you use to acquire and analyze signals This manual contains exercises that help you begin working with SignalExpress The Getting Started with SignalExpress manual is a Portable Document Format PDF You must have Adobe Reader with Search and Accessibility 5 0 5 or later installed to view the PDF Refer to the Adobe Systems Incorporated Web site to download Adobe Reader Refer National Instruments Corporation 8 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 8 Where to Go from Here to the National Instruments Product Manuals Library at ni com manuals for updated documentation resources Web Resources Refer to the National Instruments Web site at ni com tek for resources such as example projects technical documents and LabV
25. e which type of information you want to export from the operation to use in the project Getting Started with NI SignalExpress Tektronix Edition 5 4 ni com Chapter 5 Working with Signals Complete the following steps to align two signals in the My Signals wbp project 1 Right click the step response output and select Send To Analog Processing Interactive Alignment from the shortcut menu to pass the step response signal from the Load from ASCII step to the Interactive Alignment step The step selects the two most recent signals from the project to use as inputs and displays the signals on the graph of the Step Setup dialog box as shown in Figure 5 3 E Lock To Step FS Dock 5 Show Help Input Signals Autoscale x Comparison Result Sig Autoscale Test x Ref x 1 1 i i 1 0 500u e i i 4m 4 5m a Autoscale x Input Output Alignment Resampling Geometry Parameters Alignment Conditions Ignore x0 x offset x gain Os Mode 0 000 S 1 000 Allow x offset Manual i C Invert signal Allow y offset y offset y gain Allow x gain 0 000 S 1 000 al M Allow y gain Figure 5 3 Interactive Alignment Step Setup Dialog Box When you add a step to a project NI SignalExpress Tektronix Edition selects input signals based on the signal types the step can accept National Instruments Corporation 5 5 Getting
26. entions lt gt bold italic monospace The following conventions are used in this manual Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name for example AO lt 3 0 gt Square brackets enclose optional items for example response 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 the last dialog box This icon denotes a note which alerts you to important information 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 Italic text denotes variables emphasis a cross reference or an introduction to a key concept Italic text also denotes text that is a placeholder for a word or value that you must supply 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 Contents Chapter 1 Introduction to NI SignalExpress Tektronix Edition NI SignalExpress Tektronix Edition for th
27. enu to display two interactive cursors as shown in Figure 5 1 5 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 5 Working with Signals G C Program Files Signals wbp Express Workbench Jo X File Edit View Tools AddStep Window Help Add Step Stop p Reset All Tim Add Display 3P Show Help Running a Create Signal Step Signal 1 I gt b5 step signal 7 Filter Step Signal 1 b5 step signal v I gt he filtered step Figure 5 1 Signals wbp As you drag the cursors NI SignalExpress Tektronix Edition displays the x and y values of the cursors in the cursor table at the bottom of the Data View 7 Right click the graphs to view other operations in the shortcut menu If you have multiple signals on a single graph and one signal obscures another you can change the order of the signals If you run a project continuously but you want to view the data from a particular execution iteration you can pause the display by right clicking the Data View selecting Display Update from the shortcut menu and selecting Always Update to remove the checkmark next to it You also can add or remove displays and add or remove signals Getting Started with NI SignalExpress Tektronix Edition 5 2 ni com 8 Chapter 5 Working with Signals Select File Save Project As and save the project asMy Signals wbp in the lt SignalExpressTekEd gt Examples T
28. es in NI SignalExpress Tektronix Edition Professional and Base Versions Professional Base Instrument Support DPO4000 Digital Phosphor Oscilloscopes AFG3000 Arbitrary Function Generators TDS3000B Digital Phosphor Oscilloscopes NONO NOS Over 300 common standalone instruments Getting Started with NI SignalExpress Tektronix Edition 2 2 ni com Chapter 2 Getting Started with NI SignalExpress Tektronix Edition Table 2 1 Differences in NI SignalExpress Tektronix Edition Professional and Base Versions Continued Professional Base Visualization and Documentation Customizable graphing Interactive cursors Save signals to file Print and export graphs NIN NNN Drag and drop data into Microsoft Excel Word and WordPad NIONENENENSN Automated data collection Signal Processing Software filters Scalar and waveform math Analog and digital conversion Interactive signal comparisons NINN NEN Load simulation data from PSPICE Multisim and other SPICE packages Time and Frequency Measurements Amplitude and level Timing and transition Power spectrum Frequency response Distortion measurements Tone extraction NINI NI NNS National Instruments Corporation 2 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 2 Getting Started with NI SignalExpress Tektr
29. esources or other project challenges National Instruments Alliance Partner members can help To learn more call your local NI office or visit ni com alliance 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 Instruments Corporation A 1 Getting Started with NI SignalExpress Tektronix Edition
30. ew If you move a step lower in the project the output signals of the step are not available as inputs to any of the previous steps You also can cut copy and paste steps within a project by pressing the lt Ctrl X gt lt Ctrl C gt and lt Ctrl V gt keys respectively or by right clicking a step in the Project View and selecting Cut Copy Paste Before or Paste After from the shortcut menu Handling Errors and Warnings If an error occurs while a project runs an error indicator shown at left Error appears in the Project View on the step that encountered the error Double click the step with the error to display an error description across the bottom of the Step Setup dialog box Click the Details button to the right of the error description to display the full error description Getting Started with NI SignalExpress Tektronix Edition 4 8 ni com Chapter 4 Working with Projects NI SignalExpress Tektronix Edition logs all errors and warnings in the Event Log while a project runs To display the Event Log select View Event Log and click the Event Log tab in the Data View area Refer to the NI Express Workbench Help for more information about errors and warnings by selecting Help Express Workbench Help clicking the Search tab and entering errors National Instruments Corporation 4 9 Getting Started with NI SignalExpress Tektronix Edition Working with Signals You can use NI SignalExpress Tektronix Edition to gene
31. figuring steps in an interactive measurement environment A step is a configurable function that acquires generates analyzes loads or stores signals Steps process input signals and produce output signals You can configure the operation of a step by specifying values in a Step Setup dialog box A saved sequence of configured steps is an NI SignalExpress Tektronix Edition project This chapter teaches you about the basic layout of NI SignalExpress Tektronix Edition You learn how to load and run existing projects and how to configure steps in these projects Loading a Project Complete the following steps to load a sample project in NI SignalExpress Tektronix Edition 1 Launch NI SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition 2 Select File Open Project navigate to the lt Signall ExpressTekE d gt Examples Tutorial directory and double click First Project wbp Workbench projects refer to the Express Workbench framework in which NI SignalExpress Tektronix Edition resides 3 Examine the dialog box that launches as shown in Figure 4 1 to learn about the different components of NI SignalExpress Tektronix Edition National Instruments Corporation 4 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 4 Working with Projects 29 C Progr
32. g and Measurement Studio for Microsoft Visual Studio programming You can use these programming tools with National Instruments measurement hardware and interfaces to traditional instruments to build custom advanced virtual instrumentation systems NI SignalExpress Tektronix Edition optimizes virtual instrumentation for design and test engineers by offering instant interactive measurements that require no programming You can use NI SignalExpress Tektronix Edition interactively to acquire generate analyze compare import and save signals You can compare design data with measurement data in one step NI SignalExpress Tektronix Edition extends the ease of use and performance of virtual instrumentation to those who must acquire or analyze signals without programming applications You also can extend the functionality of NI SignalExpress Tektronix Edition by importing a custom virtual instrument VI created in LabVIEW or by converting an NI SignalExpress Tektronix Edition project to a LabVIEW block diagram so you can continue development in the LabVIEW environment NI SignalExpress Tektronix Edition for the Design Lab Tektronix and National Instruments have partnered to help increase your productivity with the industry s most seamless oscilloscope to computer connectivity solution NI SignalExpress Tektronix Edition is fully interactive measurement acquisition analysis and documentation National Instruments Corporation 1 1 Getting S
33. he clipped waveform as an output signal When you import a LabVIEW VI NI SignalExpress Tektronix Edition maps the inputs of the VI as parameters and the outputs of the VI as output signals You can define an input as an input signal to make it available in the Project View as an input to a step which means you can pass signals as inputs to a VI In this project the VI contains the input signal Time waveform in Select Clipped waveform out in the Outputs list and select Time Waveform Real from the Strict Type of Output Data pull down menu to specify Clipped waveform out as a time domain waveform The Step Setup dialog box should appear as shown in Figure 7 1 Getting Started with NI SignalExpress Tektronix Edition 7 2 ni com Chapter 7 Extending NI SignalExpress Tektronix Edition Projects with LabVIEW Step Setup X Close EP Lock To Step FS Dock 5 Show Help Settings Configure VI Execution Control Select VI C Program Files National Instruments SignalExpress Examples Tutoriali Limiter wi a C Run This Step Automatically Refresh YI Control Name Time waveform in a 7 Input signal Connect Input aes sine wave Disconnect Input I Strict Type of Output Data Clipped waveform out A Time Waveform Real Figure 7 1 Limiter VI Step Setup Dialog Box 5 Click the Close button shown at left to close the Step Setup dialog box 6 Click the Run button shown at left to run the projec
34. ialog box m Add Display 7 Click the Add Display button shown at left to add a third graph 8 Drag the aligned reference and aligned test outputs of the Interactive Alignment step to the new graph to view the aligned signals 9 Select File Save Project to save the project Signal Types in NI SignalExpress Tektronix Edition Some steps such as the Arithmetic step can operate on multiple signal types For example you can use the Arithmetic step to operate on time domain or frequency domain waveforms The Arithmetic step changes behavior based on the type of input signals you select for the step For example if you add two time domain signals NI SignalExpress Tektronix Edition adds only their amplitudes However if you add two frequency domain phase signals NI SignalExpress Tektronix Edition adds the appropriate phase shift Getting Started with NI SignalExpress Tektronix Edition 5 6 ni com Chapter 5 Working with Signals Refer to the NI Express Workbench Help for more information by selecting Help Express Workbench Help clicking the Search tab and entering signal types Exporting and Printing Signals NI SignalExpress Tektronix Edition offers several documentation features so you can continue analysis in another software application such as Microsoft Excel or the report generation tool in NI DIAdem These features can help you document the data from NI SignalExpress Tektronix Edition in reports Exporting
35. ick the Add button to display the list of sweep outputs from each step in the project 11 Select the response amplitude in dB output under Formula Scalar and click the OK button to plot this measurement against the swept Frequency Hz parameter National Instruments Corporation 6 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 6 Performing Sweep Measurements 12 Click the Close button shown at left to close the Step Setup dialog box The Sweep step creates a loop around all the steps in the project to include all the steps in the sweep operation Plotting Sweep Results Complete the following steps to run the sweep measurement 1 Click the Run Once button shown at left to execute the sweep measurement The stimulus signal output on the graph iterates through the specified range of frequencies 2 Drag the response amplitude in dB vs Frequency Hz signal from the bottom of the Sweep loop to the Data View to display the output of the sweep NI SignalExpress Tektronix Edition creates a new graph The data from a sweep operation is an x y array that requires a separate graph as shown in Figure 6 3 Getting Started with NI SignalExpress Tektronix Edition 6 4 ni com Chapter 6 Performing Sweep Measurements oy C Program Files Sweep wbp Express Workbench Jog File Edit view Tools AddStep Window Help sF AddStep gt Undo Run Run Once aa Reset All ta Add Display Show Hel
36. iteration appears in real time on the upper graph then appears on the lower graph to display all the sweeps at each cutoff frequency setting as shown in Figure 6 4 Getting Started with NI SignalExpress Tektronix Edition 6 6 ni com Chapter 6 Performing Sweep Measurements W C Program Files Nested Sweep wbp Express Workbench Jog File Edit view Tools AddStep Window Help Add Step Stop a Reset All E Add Display 2 Show Help Hii E m Sweep Outer Loop c Sweep Inner Lo Create 5 Sweepin PS stimulus FN Filter Simulate he sti v LP BS respons respons fre Amplitud Get the res v v gt E ims of re I Formula Convert gt GE ims v gt respons gt be response gt bg response ampli Figure 6 4 Nested Sweep wpb 3 Click the Stop button shown at left to stop the project Stop National Instruments Corporation 6 7 Getting Started with NI SignalExpress Tektronix Edition Extending NI SignalExpress Tektronix Edition Projects with LabVIEW You can use NI SignalExpress Tektronix Edition to define automated measurements without programming applications by using built in steps for acquiring generating or analyzing signals You can extend the functionality of NI SignalExpress Tektronix Edition by building a user defined step or VI in LabVIEW and importing the VI into NI Sig
37. lloscopes Ethernet Connection 3 Ifyou know the IP address of the connected Tektronix TDS3000 series oscilloscope enter it in the Select instrument to use drop down box on the VISA Resource tab If you do not know the IP address click the Autodetect button to scan the local subnet for connected Tektronix TDS3000 series oscilloscopes If NI SignalExpress Tektronix Edition detects a Tektronix TDS3000 series oscilloscope on the local subnet NI SignalExpress Tektronix Edition displays the instrument address connects to the Tektronix TDS3000 series oscilloscope and performs one waveform acquisition National Instruments Corporation 3 13 Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments B Note You must manually enter the instrument address when connecting to a Tektronix TDS3000 series oscilloscope that is not on the local subnet Refer to the NI Express Workbench Help for information on how to manually connect to a Tektronix TDS3000 series oscilloscope by selecting Help Express Workbench Help clicking the Search tab and entering Tek TDS3000 4 Click the Run button shown at left to continually acquire from the gt odkad Tektronix TDS3000 series oscilloscope Connecting over GPIB Complete the following steps to connect and control the Tektronix TDS3000 series oscilloscope over GPIB 1 Connect the Tektronix TDS3000 series oscilloscope to your computer using a GPIB
38. meter Selection Dialog Box Select the Frequency Hz parameter under Create Signal stimulus signal sinewave and click the OK button On the Sweep Configuration tab select Exponential from the Type pull down menu Enter 1k in the Start Frequency Hz spin control and enter 40k in the Stop Frequency Hz spin control Enter 150 in the Number of points spin control The Sweep Configuration tab should appear as shown in Figure 6 2 Getting Started with NI SignalExpress Tektronix Edition 6 2 ni com Chapter 6 Performing Sweep Measurements EP Lock To Step FS Dock 5 Show Help Sweep Configuration Sweep Output Parameters being swept Parameter Name Step Name Affected Output Alias Frequency Hz Create Signal stimulus signal sinewav Remove Configuration Sweep Points Type 40k Exponential a Start Frequency Hz 1k E Stop Frequency Hz 40k a Number of points 1k 1 1 I i i 150 E 1 20 40 60 80 100 120 140 160 Iteration Figure 6 2 Sweep Step Setup Dialog Box You use the Sweep step to specify a range of values to iterate through the Frequency Hz parameter of the Create Signal step The Create Signal step uses the defined frequency range to generate a sine wave at each of these frequencies However you can use the Sweep step to sweep any sweepable parameter value of any sweepable step in a project 9 Click the Sweep Output tab 10 Cl
39. nalExpress Tektronix Edition to expand the number of steps available in NI SignalExpress Tektronix Edition 3 Note You must have LabVIEW 7 1 or later to complete the exercises in this chapter Importing LabVIEW VIs into NI SignalExpress Tektronix Edition as Steps You can use the User Defined step in NI SignalExpress Tektronix Edition to call custom LabVIEW VIs You also can call a LabVIEW VI from NI SignalExpress Tektronix Edition to do the following e Control standalone instruments e Read or write data to more file formats e Display operator instructions in a pop up dialog box e Define a measurement algorithm Complete the following steps to import a VI from LabVIEW with the User Defined step 1 Select File Open Project navigate to the lt SignalExpressTekEd gt Examples Tutorial directory and double click User Step wbp This project uses the Create Signal step to generate a signal 2 Click the Add Step button and select User Defined Step National Instruments Corporation 7 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 7 Extending NI SignalExpress Tektronix Edition Projects with LabVIEW Click the Browse button on the Step Setup dialog box and select Limiter vi in the lt SignalExpressTekEd gt Examples Tutorial directory The Limiter VI accepts a time domain waveform as an input clips the signal above and below values that you specify in the Step Setup dialog box and returns t
40. ndamental frequency of the original time domain waveform input 2 Ifthe context help does not appear on the right side of the Step Setup show Help dialog box click the Show Help button shown at left to display complete reference information about the step National Instruments Corporation 4 5 Getting Started with NI SignalExpress Tektronix Edition Chapter 4 Working with Projects The upper half of the context help displays information about the step and the lower half of the context help displays information about an object when you hover over the object On the Configuration tab select Fundamental Tone from the Export signals THD pull down menu The operation of the step changes from displaying the frequency domain spectrum of the entire input signal to displaying only the frequency spectrum of the fundamental tone of the input signal The signals in the top half of the Step Setup dialog box update to reflect the change you made Select Harmonics Only from the Export signals THD pull down menu The step changes to export only the spectrum of the harmonic signals from the input signal Both the output signal of the Distortion step and the graph in the Data View update to reflect the change you made Click the Amplitude and Levels step in the Project View The Step Setup dialog box changes from displaying the configuration of the Distortion step to displaying the configuration of the Amplitude and Levels step Click the
41. om Chapter 3 Connecting and Controlling Instruments Test and Measurement Device X Windows can perform the same action each time you m connect this device What do you want Windows to do aiin S Lana Ml Sionat press Tektori Ector O Take no action Cl Always perform the selected action Figure 3 2 USB Plug and Play Dialog Box 5 NISignalExpress Tektronix Edition launches and provides a live view of the Tektronix DPO4000 series oscilloscope as shown in Figure 3 3 National Instruments Corporation 3 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments f Untitled 1 Express Workbench Loe File Edit View Tools AddStep Window Help or Hh AddStep x Undo Stop 9 ay Reset All ih Autoset La Read Only Ee Lock To Step les Dock 2 Show Help Running Ea 82 Step Setup i Dataview a Dro Tek DPO4000 I gt ES DPO4kICH1 Show entire waveform Vertical Horizontal Trigger Measurements VISA Resource Execution Control Select instrument to use USBO 0 0699 0X0401 PQ3N066 INSTR v Autodetect Figure 3 3 Live Acquisition from Tektronix DP04000 Series Oscilloscope Connecting over Ethernet Before you begin this section refer to the DPO4000 Series Digital Phosphor Oscilloscopes User Manual to properly connect and configure your Tektronix DPO4000 series o
42. on gives you direct immediate feedback on the changes you make When you click the Run Once button NI SignalExpress Tektronix Edition executes all steps in the project one time Of C Program Files First Project wbp Express Workbench Jog File Edit View Tools AddStep Window Help sF Add Step B Stop Yp Reset All fjg Add Display 3P Show Help Running E oo Load from ASCII I gt BS distorted sinewave Amplitude and Le gt BS distorted sine v gt e de I gt mms Distortion gt BS distorted sine v I b exported ti UID W exported s gt E fund frequency Hz gt THD de 10 0602m rms 1 00382 Figure 4 2 NI SignalExpress Tektronix Edition Project and Data Views National Instruments Corporation 4 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 4 Working with Projects Configuring a Step A step is a configurable function that acquires generates analyzes loads or stores signals Steps process input signals and produce output signals You can configure the operation of a step in NI SignalExpress Tektronix Edition by specifying values in the Step Setup dialog box for that step While a project runs you can modify the configuration of steps to view immediate feedback on the changes and adjust the measurements until you achieve the results you need
43. onix Edition Table 2 1 Differences in NI SignalExpress Tektronix Edition Professional and Base Versions Continued Professional Base Measurement Automation Parameter sweeping W7 Limit testing 4 NI SignalExpress Tektronix Edition Licensing Options This section is designed to assist you in understanding the licensing policies for NI Signal Express Tektronix Edition This document does not replace the National Instruments Software License Agreement and should only be used as a reference NI SignalExpress Tektronix Edition Base License The unlicensed version of NI SignalExpress Tektronix Edition gives you access to all features in Table 2 1 for 30 days After that period NI SignalExpress Tektronix Edition runs in unlicensed mode If you do not activate a valid license within 30 days and you create a project that contains licensed steps the following occurs 3 Note Tektronix specific steps are not licensed steps Each time you drop a step that is licensed or not Tektronix specific a dialog box prompts you to activate the software You cannot save a project Projects close after 10 minutes Refer to the National Instruments Web site at ni com tek to purchase NI SignalExpress Tektronix Edition professional version NI Signal Express Tektronix Edition Professional License The professional license provides you with the full functionality of NI SignalExpress Tektronix Edition a
44. ox on the VISA Resource tab If you do not know the IP address click the Autodetect button on the VISA Resource tab to scan the local subnet for a connected Tektronix DPO4000 series oscilloscope If a Tektronix DPO4000 series oscilloscope is found NI SignalExpress Tektronix Edition 3 5 Getting Started with NI SignalExpress Tektronix Edition Chapter 3 Connecting and Controlling Instruments displays the instrument address connects to the Tektronix DPO4000 series oscilloscope and performs one waveform acquisition ay Note You must manually enter the instrument address when connecting to a Tektronix DPO4000 series oscilloscope that is not on the local subnet Refer to the NI Express Workbench Help for information about how to manually connect to a Tektronix DPO4000 series oscilloscope by selecting Help Express Workbench Help clicking the Search tab and entering Tek DPO4000 4 Click the Run button shown at left to continually acquire a signal from the Tektronix DPO4000 series oscilloscope Tektronix AFG3000 Series Arbitrary Function Generators Run Connecting over USB With built in USB plug and play capabilities NI SignalExpress Tektronix Edition automatically detects when a Tektronix AFG3000 series arbitrary function generator connects to the PC and allows you to immediately control and generate signals Complete the following steps to connect the Tektronix AFG3000 series arbitrary function generator over USB 1
45. p Idle E fa Sweep Create Signal Sinewave gt ES stimulus signal Filter Simulated Unit gt a stimulus v gt BS response signal Amplitude an Get the RMS gt ES respons w gt ims of response R Formula Sc Convert to dB gt ims ofte v gt response ampl Deea Figure 6 3 Graph Output from Sweep Operation 3 Click the Run Once button again to execute the sweep The frequency response of the Filter step plots on the new graph while the project runs The graph displays the transfer function of the filter or the amplitude output expressed in decibels versus the frequency 4 Double click the Filter step to display the filter specifications in the Step Setup dialog box The frequency response of the filter in the Filter Magnitude Response dB graph matches the graph in the Data View Click the Close button to close the Step Setup dialog box Select File Save Project As and save the project as My Sweep wbp in the lt SignalExpressTekEd gt Examples Tutorial directory National Instruments Corporation 6 5 Getting Started with NI SignalExpress Tektronix Edition Chapter 6 Performing Sweep Measurements You can use the Sweep step to sweep multiple parameters simultaneously by adding additional parameters on the Configuration tab of the Sweep Step Setup dialog box Sweeping
46. rate and analyze signals to evaluate designs without programming This chapter teaches you how to work with signals in NI SignalExpress Tektronix Edition including how to plot signals on graphs import signals from a file interactively align and compare two signals and save signals to a file Graphing Signals Complete the following steps to plot signals in a sample project and examine the signals visually using cursors 1 2 3 wy Add Display 5 6 National Instruments Corporation Select File Open Project navigate to the lt SignalExpressTekEd gt Examples Tutorial directory and double click Signals wbp This project configures the Create Signal step to create a square wave signal and the Filter step to perform a lowpass Butterworth filter Drag the step signal output of the Create Signal step to the Data View Drag the filtered step output of the Filter step to the Data View You can plot signals of the same signal type on the same graph Both the step signal and the filtered step signal are time domain signals so they appear on the same graph If you want to plot signals of different types drag the signals to the same graph and NI SignalExpress Tektronix Edition creates a new graph Click the Add Display button shown at left on the toolbar to create a new graph Drag the filtered step output of the Filter step to the new graph Right click the new graph and select Cursors from the shortcut m
47. ronix Edition Chapter 3 Connecting and Controlling Instruments Tektronix TDS3000 Series Oscilloscopes Connecting over Ethernet Before you begin this section refer to the TDS3000 Series User Manual to properly connect and configure your Tektronix TDS3000 series oscilloscope for communication over Ethernet After you connect and configure the oscilloscope complete the following steps to access the Tektronix TDS3000 series oscilloscope from within NI SignalExpress Tektronix Edition 1 Launch NI SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition 2 Click the Add Step button shown at left and select Tektronix 5 Acquire Signals Tek TDS3000 The Tektronix TDS3000 series oscilloscope Step Setup dialog box launches as shown in Figure 3 9 Getting Started with NI SignalExpress Tektronix Edition 3 12 ni com Chapter 3 Connecting and Controlling Instruments D Untitled 2 Express Workbench Woe File Edit View Tools AddStep Window Help Hh eAdd step 9 Undo Redo Run RunOnce WReset all Mf Autoset E Lock To Step fe Dock 3P Show Help aS A Step Setup FF Data View Vertical Horizontal Trigger Measurements VISA Resource Execution Control Autodetect Select instrument to use Figure 3 9 Autodetect Tektronix TDS3000 Series Osci
48. s shown in Table 2 1 You can activate NI SignalExpress Tektronix Edition professional version using the National Instruments License Manager or the NI SignalExpress Tektronix Edition installer Getting Started with NI SignalExpress Tektronix Edition 2 4 ni com Connecting and Controlling Instruments NI SignalExpress Tektronix Edition provides native support for the Tektronix DPO4000 and the TDS3000 series oscilloscopes and AFG3000 series signal generators This chapter covers the process of connecting instruments to the PC and performing signal generation and acquisition from within NI SignalExpress Tektronix Edition NI SignalExpress Tektronix Edition also supports over 300 of the most common standalone instruments including the majority of instruments in the Tektronix oscilloscope and signal generator product lines Refer to Using Other Instruments with NI SignalExpress Tektronix Edition in Chapter 8 Where to Go from Here for more information about controlling other instruments Tektronix DP04000 Series Oscilloscopes Connecting over USB With built in USB plug and play capabilities in Windows XP NI SignalExpress Tektronix Edition automatically detects when a Tektronix DPO4000 series oscilloscope connects to the PC and allows you to immediately control the oscilloscope and acquire signals from the oscilloscope Complete the following steps to connect the Tektronix DPO4000 series oscilloscope 1 Turn on the Tektronix DPO400
49. scilloscope for communication over Ethernet After you connect and configure the oscilloscope complete the following steps to access the Tektronix DPO4000 series oscilloscope from within NI SignalExpress Tektronix Edition 1 Launch NI SignalExpress Tektronix Edition by selecting Start All Programs National Instruments SignalExpress Tektronix Edition SignalExpress Tektronix Edition 2 Click the Add Step button shown at left and select gt Tektronix Acquire Signals Tek DPO4000 The Tektronix Getting Started with NI SignalExpress Tektronix Edition 3 4 ni com Chapter 3 Connecting and Controlling Instruments DPO4000 series oscilloscope Step Setup dialog box launches as shown in Figure 3 4 Of Untitled 2 Express Workbench oE File Edit View Tools AddStep Window Help sh AddStep x Undo Redo Run Run Once Ye Reset All Autoset Read Only oF Lock To Step F Dock Show Help v gt Idle Ea BB Step Setup Data View Show entire waveform gt b5 lt No device gt e Vertical Horizontal Trigger Measurements VISA Resource Execution Control Select instrument to use Q National Instruments Corporation Figure 3 4 Autodetect Tektronix DP04000 Series Oscilloscope Connected Ethernet Connection If you know the IP address of the connected Tektronix DPO4000 series oscilloscope enter it in the Select instrument to use drop down b
50. sseereeesresrsrrsesrsresresrsresresrstrsrsresrset 5 7 Logeins Data to a File lt ictiveesteeniiuet Qecepnad a sttenie a E EEE 5 7 Chapter 6 Performing Sweep Measurements Defining Sweep Ranges and Outputs 0 eee eee esecseceseeseeesececeseeseeeseceeesesseseneesees 6 1 Plotting Sweep Results sess ssc acese Aeuvetondeci er a aer a E e 6 4 Running Multi Dimensional Sweeps eee eeeeeeeseeseeeseseeeeseceeeesesseeeseeasenseeaeenaeeaes 6 6 Chapter 7 Extending NI SignalExpress Tektronix Edition Projects with LabVIEW Importing LabVIEW VIs into NI SignalExpress Tektronix Edition as Steps 7 1 Chapter 8 Where to Go from Here NI SignalExpress Tektronix Edition Sample Projects eeeeceeseceeeeseeeeeeneeeees 8 1 Using Other Instruments with NI SignalExpress Tektronix Edition 8 1 Related Doctimentatione seinere iei eai e E EA SEEVE EE EEES 8 1 Web Resources ninsori ne a E R E A REE 8 2 Appendix A Technical Support and Professional Services Getting Started with NI SignalExpress Tektronix Edition vi ni com Introduction to NI SignalExpress Tektronix Edition National Instruments provides innovative solutions for scientists and engineers to build automated measurement systems based on industry standard computers and platforms National Instruments develops robust industry leading programming environments for automating measurement systems such as LabVIEW for graphical development LabWindows CVI for ANSI C programmin
51. stssrsrrsreeesreet 3 12 Connecting over Ethernet isnin neaei e a a 3 12 Connectingover GPIB pisinom osain ina e ae a 3 14 Chapter 4 Working with Projects Loading a Projects Sessie haeti siih cod OEE E EAE E E ESEE 4 1 Running a Project and Displaying Signals sesessseesseeessessetsresrsrsresreresresrsresresesresrsses 4 2 Configuring a Ste pis ssc iss ne ene E AEEA A E EE EEEE EAE RE EAE 4 4 Moying and Deleting Steps i sijsc sessesesesecsssccscapvessaassnsde avchoucovces sack aipe i 4 8 Handling Errors and Warnings esssesseessseesssreresreresreestssrsresteterestsenteenresreresresrseeneeees 4 8 National Instruments Corporation v Getting Started with NI SignalExpress Tektronix Edition Contents Chapter 5 Working with Signals Graphing Signals ssnin ea ei E EE terial a apaa iai 5 1 Importing a Signal from a File ssion e e E A E E es 5 3 Aligning and Comparing Signals sssesessseessseeseesseetssestsresterestestesestesrsrrsteresresrsresresreees 5 4 Signal Types in NI SignalExpress Tektronix Edition essesesseseeeesseeerrsreresreerrresrrerssee 5 6 Exporting and Printing Signals ee eeceseeeeeeseeseeeseeseeeseceeeaeeseesaecseessessseeaeenaes 5 7 Exporting Signals to Microsoft Excel oo ccc eeeeseeseeeseeseeeseeeseeaeeseeeaeenaes 5 7 Printing Signals cs c t 8 sitet aie neds iniiein Pa ee ae 5 7 Saving Sigmals as MASS veren eea Ee EAE Eia E eA SIE EEEE SETETE ESER 5 7 Saving Tektronix Scope Images essseeses
52. t 7 Drag the Clipped waveform out output signal from the Limiter vi step to the Data View Double click the Limiter vi step to display the Step Setup dialog box 9 Click the Configure VI tab to display the front panel of the VI 10 Enter new values in the Upper limit and Lower limit fields For example enter 100 in the Upper limit spin control as shown in Figure 7 2 National Instruments Corporation 7 3 Getting Started with NI SignalExpress Tektronix Edition Chapter 7 Extending NI SignalExpress Tektronix Edition Projects with LabVIEW Figure 7 2 Configure VI Tab 11 Click the Close button to close the Step Setup dialog box The Clipped waveform out output signal changes on the Data View to reflect the changes you made Refer to the NJ Express Workbench Help for more information about using LabVIEW VIs in NI SignalExpress Tektronix Edition and how to develop VIs that work well in NI SignalExpress Tektronix Edition Getting Started with NI SignalExpress Tektronix Edition 7 4 ni com Where to Go from Here Refer to the following resources for more information about NI SignalExpress Tektronix Edition NI SignalExpress Tektronix Edition Sample Projects NI SignalExpress Tektronix Edition provides a variety of sample projects that demonstrate more capabilities of NI SignalExpress Tektronix Edition These projects are located in the lt SignalExpressTekEd gt Examples directory Review these examples to learn mor
53. t 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 Instruments 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 reproduced or transmitted in any form ele
54. tarted with NI SignalExpress Tektronix Edition Chapter 1 Introduction to NI SignalExpress Tektronix Edition software NI SignalExpress Tektronix Edition also includes the industry s first USB plug and play automatic configuration and connectivity Using NI SignalExpress Tektronix Edition you can take advantage of the following e Ability to configure and connect Tektronix instruments with the industry s first true USB plug and play connectivity solution e An intuitive drag and drop user interface that does not require any programming e Capability to capture transfer and save measurement settings waveforms and screen images e Quickly import your simulated results and compare them against actual measured results live on screen e More than 200 measurement processing analysis and reporting operations that perform in real time NI SignalExpress Tektronix Edition also comes with built in support for the following e Tektronix DPO4000 and TDS3000 series oscilloscopes e Tektronix AFG3000 series arbitrary function generator e Over 300 other common standalone instruments Extending NI SignalExpress Tektronix Edition Projects with LabVIEW You can extend the functionality of NI SignalExpress Tektronix Edition with LabVIEW when you build VIs with LabVIEW and import them into NI SignalExpress Tektronix Edition to expand the built in measurement options Refer to Chapter 7 Extending NI SignalExpress Tektronix Edition
55. ts Corporation All rights reserved Important Information Warranty 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 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 documen
56. utorial directory Importing a Signal from a File You can import signals from standard file formats such as ASCII comma or tab delimited files and LabVIEW measurement data files 1vm You also can import signals from simulated results of EDA tools such as SPICE simulators Complete the following steps to import a signal from a file 1 National Instruments Corporation Right click the Project View and select Analog Load Save Signals Load from ASCII from the shortcut menu Click the Browse button shown at left in the Step Setup dialog box navigate to the lt Program Files gt National Instruments SignalExpressTekEd Examples Tutorial directory and double click Step Response txt This step parses an ASCII file and displays the signals in the file In the File preview section Column 1 shows the time stamp data and Column 2 shows the actual voltage values of the signal Click the Import Signals tab to display the available signals in the file Place a checkmark in the Column 2 checkbox to import the signal and remove the checkmark from the Column 1 checkbox The Step Setup dialog box displays a preview of the signal in the Imported Signal section Select Column 1 from the Input X values pull down menu to set the x axis data of the waveform to the appropriate values Click the Close button to close the Step Setup dialog box Right click the Column 2 output in the Project View and select Rename
57. w the instructions that appear on the screen National Instruments Corporation 2 1 Getting Started with NI SignalExpress Tektronix Edition Chapter 2 Getting Started with NI SignalExpress Tektronix Edition B Note Unless you specify another location during installation the NI SignalExpress Tektronix Edition installation program copies files to lt Program Files gt National Instruments SignalExpressTekEd directory 4 After installation check the hard disk for viruses and enable any virus detection programs you disabled The example projects you use with this manual are located in lt Program Files gt National Instruments SignalExpressTekEd Examples Tutorial The solutions for each exercise are located in lt Program Files gt National Instruments SignalExpressTekEd Examples Tutorial Solutions NI SignalExpress Tektronix Edition Version Availability NI SignalExpress Tektronix Edition is available in both a professional and base version Refer to the following table for a list of features available in each version 3 Note Features that are not available in the NI SignalExpress Tektronix Edition base version will work for 30 days from the first use of the software After 30 days if you use any of these features NI SignalExpress Tektronix Edition will only run for 10 minutes and you cannot save projects If you use only Tektronix specific steps in a project the software functions as normal Table 2 1 Differenc

Getting Started with NI SignalExpress Tektronix Edition

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