Getting Started with DAC Express
Contents
1. Setup Sy Channels o pooo oo Timebase BI Test Properties Data Recorder Data Viewer Dema Related Delete Recorded Data Show Data Files Add a Related Document Deleting the data files associated with a recording To delete a recording and its associated files do the following 1 Click on the recording name in the project view 2 Select Delete from the Edit menu or right click in the project view then select Delete Recorded Data from the shortcut menu 3 21 Getting Started To view recorded data 3 22 Need Assistance For assistance contact a VXI Technology technical support center listed at the back of this book If you are contacting VXI Technology about a problem with DAC Express please provide the following information Model number Software version Options Date the problem was first encountered Circumstances in which the problem was encountered Can you reproduce the problem What effect does this problem have on you VXI Technology Support Resources For more information on VXI Technology test amp measurement products applications services and for a current sales office listing visit our web site http www vxitech com products asp You can also contact one of the following centers and ask for a test and measurement representative World Headquarters VXI Technology Inc 2031 Main Street Irvine CA 92614 6509 Tel 949 955 1894 Fax 949 955 3041 Clevel2. FAR or DFARS clause or the VXI Technology Inc standard software agreement for the product involved Copyright VXI Technology Inc 2008 This document contains proprietary information which is protected by copyright VXI Technology Inc grants all valid DAC Express license holders permission to reproduce this copyrighted document for internal use provided it is reproduced unmodified in its entirety including this copyright notice iii DAC Express at a Glance DAC Express provides a graphical user interface that makes seting up a multi channel analog measurement easy saving time domain data to disk for future processing To assure the acquired data is valid acquisition can be monitored in real time When DAC Express begins it automatically finds all supported instruments provided each instrument is properly configured The following shows DAC Express and identifies its main areas Title Bar s reece Zor File Edit Channels View Instrument Help Menu Bar gt Dost S ale sia Voltage None Voltage None Channel editor Voltage None Voltage None Pore T1432733A B High Speed Analog Input Channels Timebase Name Function Transducer Range Test Properties M _ Engine Vibration IEPE 10 mV g A O 5Y Project View gt bata Recorder m IEPE None Data Viewer m IEPE None E bi tiene H ere F None a M Tach Wavetorm Voltage None m Voltage None G V
3. Previewing j po Getting Started To add a data display 2 Click the _Select Connections button to display the Select Data Channels dialog box 3 Double click the module or Signal Conditioning Plug on SCP to expand the display and view the channels then select the channels The maximum number of channels that can be selected is equal to the number of currently configured channels xf O Instruments 3 0 714194 Multi function Measurement and Control Module VXI 3 0 71413 15 19 22 VT15094 8 Ch x64 Gain amp 7 Hz Filter O Exhaust 3 0 CO Ambient 3 1 O In 3 2 O Mid 3 3 O But 3 4 O Strain Filtered 3 5 3 0 71413 15 19 22 VT15014 8 Ch Direct Input SCP 1 CO Isothermal Ref 3 8 O lt unnamed gt 3 9 H 0 71415 19 22 T15384 8 Ch Enhanced Frequency T ot O0 T1415 19 22 T15334 2 Ch 16 bit Digital 1 0 2x8 bit gt I cont e Click OK to close the Select Data Channel dialog box Click OK to accept the default configuration and close the display properties dialog box To resize click the data display then drag an edge or corner Copying and pasting data displays To copy and paste a data display do the following 1 2 Right click on the data display then select Copy from the shortcut menu Right click on the same or another display tab then select Paste from the shortcut menu To change its configuration
4. Documents Vi Table of Contents 1 Installing DAC Express To configure an EX2500A interface 1 8 To configure an IEEE 1394 interface 1 9 To configure an NI VXI MXI 2 interface 1 11 To configure a GPIB interface 1 12 To reconfigure a PCI interface 1 14 2 Getting Started To setup channels 2 4 To setup recording conditions 2 8 To add a data display 2 12 To view recorded data 2 16 Need Assistance VXI Technology Support Resources Vii viii Installing DAC Express This chapter provides instructions for installing DAC Express including instructions for installing VISA and configuring the interface Note Installing DAC Express To install DAC Express do the following 1 Check that the computer system meets the minimum requirements See Minimum System Requirements on page 1 4 Supported Hardware on page 1 5 and Hardware Considerations on page 1 6 Install the VXI hardware See the Getting Started with VXI manual and the documentation that came with the hardware If a preconfigured DAC Express data acquisition system was purchased or the hardware is already installed skip this step Install VISA and configure the interface using one of the following procedures e For an EX2500A interface see To configure an EX2500A interface on page 1 8 e For an IEEE 1394 interface see To configure an IEEE 1394 interface on page 1 9 e For an NI VXI MXI 2 interface see T
5. GPIB ISA card e Agilent 82350 GPIB PCI card Connect the VXI mainframe to the PC using the GPIB cable supplied with the Agilent E1406 GPIB Command Module Turn on the VXI mainframe and PC The GPIB interface is now configured Return to Step 4 on page 1 3 Installing DAC Express To reconfigure a PCI interface To reconfigure a PCI interface If using an IEEE 1394 PCI interface or a GPIB PCI interface and DAC Express did not find any instruments use this procedure to ensure that the interface card is properly configured 1 Click on File then select Exit to close DAC Express 2 Right click on My Computer select Properties and then select the Device Manager tab in the System Properties dialog box 3 Expand the heading labeled Other Devices then select one of the following e For an IEEE 1394 PCI interface select the entry labeled PCI Card e Fora GPIB PCI interface select the entry labeled Agilent GPIB Interface Card 4 Click on Remove to delete the selected entry 5 Click on Refresh to update the configuration e For the IEEE 1394 interface a new entry appears under the heading 1394 Bus Controller e For the GPIB interface a new entry appears under the heading GPIB Interfaces Installing DAC Express To reconfigure a PCI interface System Properties Computer 1394 Bus Controller Po 0 Adaptec AHA 8945 PCI to 1394 Host Controller CDROM H 6 Disk drives H Display adapters H 6 Floppy disk cont
6. Static Measurements section To set the scan rate do the following 1 Set the scan rate by clicking on either the Scan Rate or Scan Period arrow to display the dropdown list then select the desired rate or period Changing one automatically changes the other The following information is updated according to the selection e The number of scans that will be recorded The number of scans is based on the scan rate and the recording time e The projected number of bytes on the PC s hard disk required for this recording The number of bytes is based on the number of samples that will be recorded The number of samples is the number of input channels enabled multiplied by the number of scans Getting Started To add a data display To add a data display It is possible to add display tabs and data displays to the Data Recorder and Data Viewer Until a data display is added to a display tab the Creating Data Displays information screen is displayed The tool box usually found to the right allows display tabs and data displays to be added If the tool box is not shown right click on the display tab then select Display Tool Box from the shortcut menu Depending on the instruments in the system some data displays may be unavailable The unavailable data displays are shown as inactive buttons in the tool box Demo2 dxp DAC Express Data Acquisition Recorder oj x File Edit Calibration Self Test View Instrument Help oleja
7. controller or LAN card To connect the VT2216A to a SCSI adapter card for high speed playback a 68 pin LVD SCSI adapter card e g Adaptec SCSI Card 39320D In order to use DAC Express with the EX1048 EX10xxA or the EX1629 the Agilent IO Library Rev 14 2 or later must be installed The EX1048 EX10xxA or the EX1629 must be added as a LAN interface via the Agilent Connection Expert For DAC Express to correctly identify an EX1048 EX10xxA or the EX1629 the Agilent IO Library must be installed as the Installing DAC Express Primary VISA If NI VISA must be installed as the primary VISA copy the Agilent visa32 dll file from the VISA install directory into the DAC Express install directory The default location of Agilent VISA is C Program Files VIS A winnt agvisa agbin visa32 dll The default DAC Express install folder is at c Program Files VXI Technology DAC Express 1 The Agilent IO Libraries are also available for download on the Agilent website Installing DAC Express To configure an EX2500A interface To configure an EX2500A interface Use this procedure to install an EX2500A and configure an LXI VXI slot 0 interface 1 Install Agilent IO Library 2 Check that the EX2500A module is installed in slot 0 of the VXI mainframe 3 Connect a Cat 5e Ethernet cable to the EX2500A Connect the other end of the cable to the host PC 4 From a web browser on the host PC enter the IP address of the EX2500A and press
8. e Click the data browser s gt Play button to start data playback To stop data playback click the data browser s m Stop button Data Browser Properties xj Instruments V T14194 Multi function Measurement and Control Module VXI Slot 3 Jev T1413 15 19 22 VT15094 8 Ch x64 Gain amp 7 Hz Filter SCP 0 Exhaust 3 0 O Ambient 3 1 O In 3 2 O Mid 3 3 O Out 3 4 O Strain Filtered 3 5 T1413 15 19 22 VT15014 8 Ch Direct Input SCP 1 T1415 19 22 T15384 8 Ch Enhanced Frequency T otalize P M SCP 6 T1415 19 22 T15334 2 Ch 16 bit Digital 1 0 28 bit SCP 7 T1432 33 344 B T22164 Group VXI Slot 1 T1432 33 Input 71432 334 B High Speed Analog Input e Click on the browser window to move the current position marker to the location clicked e Drag the current position marker to the selected location e Press the following arrow keys Press To move the current position marker RIGHT ARROW one data point right LEFT ARROW one data point left CTRL RIGHT one blocksize right ARROW CTRL LEFT ARROW one blocksize left 3 19 Note Note Getting Started To view recorded data The current position marker must have display focus for the arrow keys to move it To ensure that the current position marker has display focus click on the browser window before using the arrow keys Depending on the data file s compres
9. the Enter key 5 Configure the EX2500A using the embedded web interface as instructed in the EX2500A User s Manual Installing DAC Express To configure an IEEE 1394 interface To configure an IEEE 1394 interface Use this procedure to install Ag VISA and configure an IEEE 1394 FireWire interface 1 Install Agilent IO Library 2 Check that the Agilent E8491B IEEE 1394 VXI module is installed in slot 0 of the VXI mainframe 3 If necessary install the IEEE 1394 interface card into the PCfollowing the instructions included with the card 4 Connect an IEEE 1394 cable to the Agilent E8491B Connect the other end of the cable to the host PC 5 Turn on the VXI mainframe and PC They must remain connected and on for the entire installation procedure The IEEE 1394 interface is now configured Return to Step 4 on page 1 3 Note Installing DAC Express To configure an NI VXI MXI 2 interface To configure an NI VXI MXI 2 interface Use this procedure to install NI VXI VISA and configure a National Instruments VXI MX I 2 interface The VXI MXI 2 module uses the local bus and must be physically separated by at least one slot from VT1432A 33B Digitizer modules VT2216A Data Disk modules and VT1434A Arbitrary Source modules with the local bus option 1 Check that the VXI MXI 2 module is installed in slot 0 of the VXI mainframe 2 Install the National Instruments MXI 2 PCI card into the PC following the instructions inclu
10. C Express online help The DAC Express Setup Data Viewer supports all of the functions mentioned in this section However these functions are performed using simulated instruments rather than live instruments Follow these steps to quickly get started using the DAC Express software 1 Start DAC Express From the Windows Start menu select Programs select VXI Technology then select VT DAC Express followed by DAC Express DAC Express automatically finds all supported instruments provided each is properly configured If DAC Express displays the No instruments were found information screen and instruments are expected refer to Chapter 1 To use DAC Express without instruments add simulated instruments using the Bi Instrument Settings button 2 Setup channels Click on Channels in the project view Configure the channels for the type of recording that will be made See To setup channels on page 3 5 for information on editing the setup in the Channels editor 3 3 Getting Started 3 4 Setup recording conditions Click on Timebase in the project view Set the start and stop recording conditions the sample rate for VT1432B 33B 35 36Digitizer modules and the scan rate for VT1413C Scanning A D modules See To setup recording conditions on page 3 9 for information on editing the setup in the Timebase editor Add information about the recording This step is optional Click on Test Properties in the project
11. Getting Started with DAC Express VXI Technology Part Number 82 0096 000 Printed in U S A Released October 27 2008 VXI Technology Inc 2008 All rights reserved 2031 Main Street CA 92614 6509 U S A Notices The information contained in the manual is subject to change without notice VXI Technology Inc makes no warranty of any kind with regard to this manual including but not limited to the implied warranties of merchantability and fitness for a particular purpose VXI Technology shall not be liable for errors contained herein or direct indirect special incidental or consequential damages in connection with the furnishing performance or use of the material Trademarks DAC Express is a trademark of VXI Technology Inc Microsoft Windows MS Windows and Windows NT are U S registered trademarks of Microsoft Corp U S Government Restricted Rights The Software and Documentation have been developed entirely at private expense They are delivered and licensed as commercial computer software as defined in DFARS 252 227 7013 Oct 1988 DFARS 252 211 7015 May 1991 or DFARS 252 227 7014 Jun 1995 as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 Jun 1987 or any equivalent agency regulation or contract clause whichever is applicable You have only those rights provided for such Software and Documentation by the applicable
12. a gt e Fe 2 Channels Timebase Pec EI III III LIII IIIIIIIIIIIIIIIINIIIIIIIIIIIIIII III LIIL IIL Test Properties Data Recorder H Data Viewer Related Documents Previewing Getting Started To add a data display Adding a display tab To add a display tab do the following 1 Click the E New Tab button A new display tab appears with the default tab name highlighted 2 Type in a new name or click on the display tab to accept the default name Adding and connecting a data display The data displays allow the data to be viewed during data acquisition and during playback To add and connect a data display do the following 1 Add an available data display using one of the following methods e Drag a display button to the display area e Click on a display button then click on the display area e Click on a display button then drag in the display area to size the display The data display appears The properties dialog box can be opened by right clicking on the display area The following shows the properties dialog box after a Readout data display is added to the display tab lo x File Edit Calibration Self Test View Instrument Help olsa S sele eal 2 E Setup 1 System Status Workspace Tab Channels F Timebase Test Properties Data Recorder E Data Viewer E Related Documents Analog Readout Display Properties Connections Tabs Appearance Scale Alarms Font Color
13. ace Required 162 76 kbytes 4 valid real number in the range 0 152587890625 to 1666 66666666667 is required Num Z 3 9 Getting Started To setup recording conditions Setting start and stop conditions When a Record is clicked in the Data Recorder data recording starts and stops according to the conditions selected here To set the start and stop conditions do the following 1 Select one of the following start conditions Immediately Data recording starts immediately after Record is clicked in the Data Recorder At Time Data recording starts at the time specified Click o to display the Set Date amp Time dialog box then select a date and time For help setting the date and time click on the dialog box s Help button On Trigger This selection is only available if a VT1432B 33B 35 36 Digitizer module is in the system Data recording starts when the trigger conditions specified are met Click on iz to display the Select Trigger Channel dialog box then select a trigger channel using the dialog box To specify a trigger level type in a number from 1 to 1 To specify a trigger slope click on the field then click on the arrow to display the dropdown list and click on a slope 2 Select one of the following stop conditions After Data recording stops after the amount of time specified To specify the amount of time enter a floating point number then click on the to display a dropdown list a
14. and Instrument Division VXI Technology Inc 5425 Warner Road Suite 13 Valley View OH 44125 Tel 216 447 8950 Fax 216 447 8951 Lake Stevens Instrument Division VXI Technology Inc 3216 Wetmore Avenue Suite 1 Everett WA 98201 Tel 425 955 1894 Fax 425 955 3041 Technical Support Tel 949 955 1894 Fax 949 955 3041 E mail support vxitech com
15. ay identification and configuration information for each channel To edit a cell click on it If an arrow appears on the right side of the cell click on the arrow to Getting Started To setup channels display a dropdown list then click on the selection If an arrow does not appear edit the cell by typing If necessary the width of each column can be adjusted by clicking and dragging the column separator lines Copying a row To quickly configure multiple channels use Copy and Paste To copy a single row and paste it to one or more rows do the following 1 Fill out the parameters for the row to be copied For example enter the name and parameters for the first channel in the channel list Left click in the ID cell of the row to be copied The row is highlighted in black Right click to display the shortcut menu then select Copy to copy the entire row Vibration Paste AutoFill Left click in the ID cell of the destination row or click and drag to select multiple rows The row or rows are highlighted in black Right click to display the shortcut menu then select Paste to paste the copied parameters into the destination row or rows 3 6 Getting Started To setup channels 6 The parameters can be modified in the copied row if desired For example to change the number in the second row double click in the name cell then highlight the number and enter a new number Engine Vibration M fEnag
16. ays the compressed data file for one channel The data is compressed to fit within the browser window up to a maximum of 50 000 data points If the data file contains more than 50 000 data points use the scroll bar below the window to view the entire data file To select which channel is displayed in the data browser do the following 1 Right click on the data browser then select Data Browser Properties from the shortcut menu Set Export Start at Marker Ctrl 4 Set Export Stop at Marker Ctrl B Export Data Data Browser Properties 2 Select the Channel Selections tab on the Data Browsers Properties dialog box 3 Double click the module or Signal Conditioning Plug on SCP to expand the display and view the channels then select a channel Viewing information about the compressed data file The Info tab in the Data Browser Properties dialog box contains information about the compressed data file To view this information do the following 1 Right click on the data browser then select Data Browser Properties from the shortcut menu 2 Select the Info tab on the Data Browsers Properties dialog box Getting Started To view recorded data Viewing the recorded data The green bar in the browser window is the current position marker It identifies the position in time within the data file that is currently shown in the Data Viewer displays The current position marker can be moved using the following methods
17. click the al Instrument Settings button to see which instruments were found in each slot If DAC Express found all the supported instruments go to Chapter 2 Getting Started to learn the basics If DAC Express did not find all the supported instruments use one of the following to resolve the instrument communication problems e For an EX2500A use the VISA Assistant program and the JO Libraries Suite Getting Started manual If an EX10xxA or EX1629 is not found the LAN connections and configuration settings should be checked in VISA Assistant as well e For an IEEE 1394 or GPIB interface use the VISA Assistant program and the JO Libraries Suite Getting Started manual e For an NI VXI MXI 2 interface use the Measurement amp Automation Explorer program and the documentation provided with the NI VXI VISA software Installing DAC Express Minimum System Requirements Windows 2000 or Windows XP 600 MHz Pentium III processor 128 MB RAM 512 MB RAM recommended 40 MB available space on hard drive plus space for data storage approximately 4 bytes sample to record or export VT1413C data and 2 bytes sample to export VT1432A 33B data CD ROM drive for installation One of the following interfaces e VXI Technology Inc EX2500A LXI VXI Slot 0 Interface e Agilent E8491 A B IEEE 1394 FireWire VXI module and an IEEE 1394 interface The IEEE 1394 interface is not supported for Windows 98 e National Instruments VXI MXI 2 modu
18. ded with the card 3 Connect the VXI mainframe to the PC using the supplied cable 4 Turn on the VXI mainframe and PC They must remain connected and on for the entire installation procedure 5 Install NI VXI VISA Version 2 0 or later following the documentation provided with the software Do a complete Express installation then use the NI Resource Manager to configure the VXI MXI 2 interface 6 Set the User Window Size A24 Space to 1 MB a Start the MAX Measurement amp Automation Explorer program as described in the documentation b From the MAX System View window right click on PCI MXI 2 then select Hardware Configuration c Select the PCI tab then set the User Window Size to 1 MB d Shutdown and restart Windows to make the changes take effect The other VXI MXI 2 default settings are acceptable The NI VXI MXI 2 interface is now configured Return to Step 4 on page 1 3 MiteDMA feature must be disabled when DAC Express is used with NI s slot 0 controller 1 10 Installing DAC Express To configure a GPIB interface To configure a GPIB interface Use this procedure to install Ag VISA and configure a GPIB interface 1 2 5 Install Agilent IO Library Check that the Agilent E1406 GPIB Command module is installed in slot 0 of the VXI mainframe Install one of the following GPIB cards into the PC following the instructions included with the card e Agilent 82537B GPIB USB e Agilent 82340 41
19. e Resist ps ire Stimulus Strain Voltag AutoFill Voltao Voltag Show Channels gt 3 Click and drag to select the same number of destination cells The first cell is highlighted with a black box and the additional selected cells are highlighted in black 4 Right click to display the shortcut menu then select Paste Voltage None wEhlann Voltage copy T onage AutoFill Voltage Show Channels gt 3 8 To setup recording conditions Getting Started To setup recording conditions The Timebase editor sets the start and stop recording conditions the sample rate for VT1432B 33B 35 36 Digitizer modules and the scan rate for VT1413C VT1415A VT1419A and VT1422A modules S DEMOZ AXP UNG Beuyess Data Penman ReEconier File Edit Timebase View Instrument Help E Setup Channels Timebase Test Properties Data Recorder Data Viewer Related Documents ileal 2 After the Record button is pressed start recording Immediately C AtTime C On Trigger Trigger Source Stop Recording After 10 00 Seconds At Time oe Actual Duration 10 00 Seconds Dynamic Measurements Sample Rate Sa s 51200 ae Sample Period s 19 53E 06 Y Blocksize 1024 a Span 20000 Hz No of Samples 512000 Disk Space Required 16 91 Mbytes Static Measurements Scan Rate 400 0000 Scans s Scan Period 0 0025 s No of Scans 4001 Disk Sp
20. elected data displays from the current tab or click All Tabs to delete the selected data displays from the current tab and the selected data display shown on multiple tabs from all tabs Getting Started To view recorded data To view recorded data The Data Viewer allows previously recorded data to be viewed including the setup that was used when the data was recorded To view the setup double click on a recording in the project view the left pane The Channels editor Timebase editor and Test Properties editor appear in the project view below the recording When a recording is selected in the project view the upper portion of the document window the right pane shows the data displays that were setup when the data was recorded To add data displays see To add a data display on page 3 13 The lower portion of the document window is called the data browser The data browser allows a position in time to be selected within the data file that is shown in the displays to control data playback and to select a region of the data file to export File Edit view Instrument Help Osta 3 2 a Setup Channels Timebase Test Properties Data Recorder Data Viewer Demo2 Related Documents System Status Blower Tachometer 16 8 24 319 8437 ms 9 krpm Cam Drive 3 17 Getting Started To view recorded data Selecting the data browser channel The data browser displ
21. ine Vibration M Engine Vibration Tach Waveform Copying a cell In addition to copying a single row it is possible to copy a single cell and paste it into one or more cells within a column or multiple cells can be copied within a column and pasted into the same number of cells within another column To copy a single cell and paste to one or more cells within a column do the following 1 Right click on the cell to select it and display the shortcut menu The cell is highlighted with a black box 2 Select Copy from the shortcut menu Function Transduce AutoFill Show Channels gt Voltage None 3 Click on a single destination cell or click and drag to select multiple destination cells The single or first cell is highlighted with a black box Any additional selected cells are highlighted in black 4 Right click to display the shortcut menu then select Paste Function Transducer Temperature RTD 385 488 u AutoFill Show Channels gt Vi 3 7 Getting Started To setup channels Copying multiple cells To copy multiple cells within a column and paste to same number of cells within a column do the following 1 Click and drag on the cells to be copied The first cell is highlighted with a black box and the additional selected cells are highlighted in black 2 Right click to display the shortcut menu then select Copy Function Transducer Temperature RTD 385 488 u ha n er e
22. information DAC Express systems with a VT1432B 33B 35 36 Digitizer may also have a VT2216A VXI Data Disk Although DAC Express only supports one VT2216A a VT2216A VXI Data Disk can be installed to increase throughput storage capacity All VT1432B 33B 35 36 Digitizer modules and VT2216A Data Disk modules use the local bus and must be placed next to each other in the mainframe with the VT2216A in the furthest right hand slot The VXI MXI 2 module uses the local bus and must be physically separated by at least one slot from VT1432B 33B 35 36 Digitizer modules VT2216A Data Disk modules and VT1434A Arbitrary Source modules with the local bus option A VT1432B 35 36 102 4 kSamples s Digitizer and a VT1433B 196 kSamples s Digitizer should not be installed in the same mainframe If both are installed inthe same mainframe the sample rate is limited to the VT1432A 51 2 kSamples s Digitizer module s sample rate and a measurement accuracy phase error problem exists at higher frequencies In VT1432 36 Digitizer Source modules with option ID4 source the external trigger connector is replaced with the optional source connector Therefore at least one VT 1432 36 Digitizer Source module must not have option 1D4 for DAC Express to support external trigger The IEEE 1394 PCI card is incompatible with certain SCSI controllers and the HP part number 5182 5446 LAN card If the IEEE 1394 PCI card does not work it may be necessary to replace the SCSI
23. le and PCI card e Agilent E1406 GPIB Command Module and GPIB card This interface only supports VT1413 15 19 22 modules Display 15 inch 800 X 600 resolution Recommended System Requirements Windows 2000 or Windows XP 1 GHz Pentium processor or faster 512 MB RAM or more 40 MB available space on hard drive plus space for data storage approximately 4 bytes sample to record or export VT1413C data and 2 bytes sample to export VT1432A 33B data CD ROM drive for installation VXI Technology Inc EX2500A LXI VXI Slot 0 Interface Display 17 inch or larger 1024 X 768 resolution or higher Installing DAC Express Supported Hardware VT1413C 64 Channel Scanning A D e VT1501A through VT1518A Signal Conditioning Plug ons VT1415A Closed Loop Controller and VT1419A Multifunction module e VT1501A through VT1518A VT1531A through VT1534A and VT1536A through VT1538 Signal Conditioning Plug ons VT1422A Remote Channel DAC and VT1529A B Remote Strain Conditioning Unit e All VT1501A through VT1518A VT1531A through VT1534A and VT1536A through VT1539A Signal Conditioning Plug ons VT1432A B 16 Channel 51 2 kSamples s 102 4 kSa s Digitizer plus DSP local bus option UGV is required for VT2216A recording e All breakout boxes supported by VT1432A e Options 1D4 source AYF tachometer 1DD delete 12 channels and 1DE delete 8 channels VT1433A B 8 Channel 196 kSamples s Digitizer plus DSP local bus option UGV is required f
24. nd select seconds minutes hours or days At Time This selection is available only if At Time is selected for the start condition Data recording stops at the time specified To specify the stop time click o to display the Set Date amp Time dialog box then enter the stop time using the dialog box Getting Started To setup recording conditions Setting the sample rate and blocksize If a VT 1432B 33B 35 36 Digitizer is in the system the Timebase editor displays a Dynamic Measurements section To set the sample rate and blocksize do the following 1 Set the sample rate by clicking on either the Sample Rate or Sample Period arrow to display the dropdown list then select the desired rate or period Changing one automatically changes the other 2 Click on the Blocksize arrow to display the dropdown list then click on a blocksize The following information is updated according to the selections e The measurement span based on the selected sample rate e The total number of samples that will be recorded The number of samples is based on the sample rate and the recording time e The projected number of bytes on the VT2216A VXI Data Disk or other host disk drive for this recording The number of bytes is based on the number of samples that will be recorded Getting Started To setup recording conditions Setting the scan rate Ifa VT1413C VTI415A VT1419A or VT1422A is in the system the Timebase editor displays a
25. o configure an NI VXI MXI 2 interface on page 1 11 e For a GPIB interface see To configure a GPIB interface on page 1 12 This step can be skipped if DAC Express is to be used with only simulated instruments If VISA is already installed and the interface is already configured verify that the required version of VISA is installed For LXI instruments the EX2500A or an IEEE 1394 interface Ag VISA version 14 2 or later must be installed For NI VXI MXI 2 interface NI VXI VISA version 2 0 or later must be installed Installing DAC Express 4 Install DAC Express Insert the DAC Express CD into the PC and wait for the Setup program to auto start then follow the instructions on the screen If MATLAB is installed and was ran the Standard Data Format Toolbox for MATLAB in the Select Options dialog box can be selected Although it may be possible to install the toolbox with a lower version of MATLAB version 5 3 or higher must be installed to use the toolbox 5 Start DAC Express From the Windows Start menu select Programs then select DAC Express followed by DAC Express 6 Verify that DAC Express found the supported instruments During startup DAC Express searches for supported instruments then displays the instruments it found in the Channels editor The tabs at the bottom of the Channels editor show the instruments that were found The ID column shows the instrument s slot and channel numbers Alternately
26. oltage i None Document Oo Voltage None Pi O Voltage None Wi ndow O Voltage None displaying the m Voltage i None O Ej O a O Voltage None yT 432 33 Tach AvTisoia AvTiso7A AVTISO94 AVT15314 Statu S Bar p Enable disable channel to record or output a signal WA e Title Bar displays the name of the current project If the project has not been saved displays Untitled e Menu Bar provides dropdown menus in the standard Windows style The menus displayed change with the selection in the project view e Toolbar provides toolbar buttons as shortcuts to many menu functions Each button can be identified by its tool tip which appears when the mouse pointer is held over the button e Project View provides a hierarchical tree view of the DAC Express user interfaces and allows the currently displayed user interface to be selected e Document Window displays the DAC Express setup editors data recorder and any recordings or related documents in the project The selection in the project view determines the display in this window e Status Bar displays messages about the current task or process iv The following describes the user interfaces available in the project view Setup displays an information screen which shows how to access the following setup editors e Channels allows the configuration for each channel in the system to be edited The tabs at the bottom of the Channels editor allo
27. or VT2216A recording e All breakout boxes supported by VT1433A B e Options 1D4 source AYF tachometer and 1DL delete 4 channels VT1434A 4 Channel 65 kSamples s Arbitrary Source e Options 1D4 source and 1DM delete 2 channels VT1435 amp VT1436 8 Channel 16 Channel 102 4 kSamples s Digitizer plus DSP local bus option UGV is required for VT2216A recording e Options 1D4 source and AYF tachometer VT2216A VXI SCSI I F and HP Agilent E1562D E F VXI Data Disk EX1048 LXI 48 Channel Precision Thermocouple Instrument EX10xxA LXI 48 Channel Precision Thermocouple Voltage Instrument EX1629 48 Channel Strain Gauge Instrument VT1432 36 Not Supported with GPIB Interface If you are using the E1406 GPIB Command Module and GPIB interface the VT1432 VT1433 VT1434 VT1435 and VT1436 VXI modules are NOT supported These modules are supported ONLY with the EX2500A E8491A B IEEE 1394 or NI VXI MXI 2 MXIbus interface Only the VT1413 15 19 modules are supported with the EX2500A or GPIB interface Installing DAC Express Hardware Considerations Only a single VXI mainframe is supported DAC Express doesn t support multiple mainframes daisy chained together When more than one EX1629 is used simultaneously they must be daisy chained using LXI bus cables Any unused LXI connectors must be properly terminated DAC Express currently does not support the star trigger configuration Please see the EX 629 User s Manual for more
28. right click on the data display then select Properties from the shortcut menu Getting Started To add a data display Showing a data display on multiple pages To show a data display on multiple display tabs do the following 1 2 3 Right click on the data display then select Properties from the shortcut menu Select the Tabs tab on the Display Properties dialog box Click All to show the data display on all display tabs or toggle selected checkmarks on to show the data display on selected display tabs Any change to the data display occurs on every tab showing the data display Deleting a data display To delete a data display do the following 1 2 3 Right click on the data display then select Delete from the shortcut menu If the Confirm Deletion dialog box appears click Yes If the Delete All dialog box appears the data display is shown on multiple tabs Click Current Tab to delete the data display from the current tab or click All Tabs to delete the data display from all tabs Deleting multiple data display To delete multiple data displays do the following 1 2 Press and hold the Ctrl key then click on each data display Right click on one of the selected data displays then click Delete from the shortcut menu If the Confirm Deletion dialog box appears click Yes If the Delete All dialog box appears at least one data display is shown on multiple tabs Click Current Tab to delete the s
29. rollers H 6 Hard disk controllers 83 Keyboard H Monitor ca Mouse 4 Network adapters E Ports COM amp LPT H SCSI controllers lt a Click on OK to close the System Properties dialog box From the Windows Start menu select Programs then select Agilent IO Libraries followed by IO Config The I O Config program starts and displays its configuration screen Installing DAC Express To reconfigure a PCI interface Interface Configuration Application 1 0 Config OF Xx File Options Help This utility configures 1 0 interfaces It must be run whenever a new 1 0 interface is installed in the computer or when changes need to be made to an existing 1 0 interface To configure a new interface select it in the Available Interface Types list and click on Configure To edit a previously configured interface select it in the Configured Interfaces list and click on Edit m Available Interface Types m Configured Interfaces SICL Name VISA Name HP 82335 HP IB ASRLI HP 82340 82341 HP hpib GPIBO HP 82350 HP IB vxi Velo HP E2075 GPIO HP 84914 R Help piece el er Edit Henmove 8 Click on Auto Add to configure the interface e For the IEEE 1394 interface a new entry VXI0 appears below the heading VISA Name e For the GPIB interface a new entry GPIBO appears below the heading VISA Name 9 Click on OK to close the I O Config program 10 Restart DAC Expres
30. s From the Windows Start menu select Programs select VXI Technology then select VT DAC Express followed by DAC Express 11 Verify that DAC Express can now find the supported instruments During startup DAC Express searches for supported instruments then displays the instruments it found in the Channels editor If DAC Express found all the supported instruments go to Chapter 2 Getting Started to learn the basics If DAC Express did not find all the supported instruments use the VISA Assistant program and the Getting Started with VXI manual to resolve the instrument communication problems 1 14 Title Bar amp Demo2 dxp DAC Express Data Acquisition Recorder Menu Bar P Fie Edt Channels view Instrument Help osal S e a aa 2 Voltage Voltage Voltage Channel editor Voltage Voltage Setup Channels z Timebase Name Function Test Properties Engine Vibration IEPE j i p DataRecorder IEPE P roject View E Data Viewer Fi JEPE Demo2 r JEPE nee oe v Tach Waveform Voltage O Voltage m Voltage O Voltage Document m Voltage Window gt a Voltage displaying the z Voltage mj O mj G A 71432i33 Tach AVTiso14 AvT15074 AVT15094 VT15314 4 Status Bar Enable disable channel to record or output a signal Note Getting Started Getting Started This chapter provides the basics that help get DAC Express running For more information see the DA
31. sion factor it may be necessary to press the arrow keys many times to see the current position marker move For example if the compression factor is 50 data points per display point it is necessary to press the arrow key 50 times to move the current position marker one display point Likewise depending on the data file s blocksize it may be necessary to press the Ctrl arrow keys many times to see the current position marker move For example if the blocksize is 1 data point and the compression factor is 5 data points per display point it is necessary to press the Ctrl arrow key 5 times to move the current marker position one display point 3 20 Getting Started To view recorded data Locating the data files associated with a recording The data in the recording is saved in files in different locations according to the type of data e Dynamic measurement data collected with real instruments is saved on the VT2216A VXI Data Disk or other host disk drive e Static measurement data and all simulated data is saved under the project directory on the PC s hard disk The project directory is the location of the project dxp file if it was saved or the Windows TEMP directory if it was not To locate the data files for a recording do the following 1 Click on the recording name in the project view 2 Select Show Data Files from the View menu or right click in the project view then select Show Data Files from the shortcut menu
32. tarted To setup channels To setup channels When DAC Express is started it automatically finds all supported instruments including all supported Signal Conditioning Plug ons SCPs and breakout boxes The following examples are generated from the Demo2 dxp file located in the VXI Techology Directory created upon installation of DAC Express typically found in C Program Files VXI Technology DAC Express Demo depicting several instruments in a simulated working environment i Demo2 dxp DAC Express Data Acquisition Recorder ioj x File Edit Channels view Instrument Help osm S e clea 2 E Setup Channels TIA Timebase Name Function Transducer Coupling Weighting Test Properties 3 Engine Vibration IEPE 10 mV g oo AC 1Hz 1f No Weight IEPE None oo DC 1af No Weight IEPE None iu oc afew IEPE None aw DE iuf No Weight Tach Waveform Voltage i None w DC af No Weight Voltage None w DC af NoWeight Voltage None ww DC f Noweight Voltage None we DC f No Weight Voltage None wee DC No Weight Voltage None as DC Guf Noweigt Voltage None be DC FNo Weight i Voltage None ase DC No Weight Voltage j None w DC A Voltage None al DC Voltage i None w DC Voltage None oo DC Data Recorder E Data Viewer Demo2 Related Documents DODO oO ooo Enable disable channel to record or output a signal The Channels editor contains a row for each channel in the system and columns that displ
33. view Enter information about the recording Add a data display Click on Data Recorder in the project view The Creating Data Displays information screen appears in the document window Click on a display button then click on the information screen Configure the data display using the dialog box that appeared when data display was added See To add a data display on page 3 13 for instructions on adding a data display Save the setup to a project file Click on File then select Save As to display the Save As dialog box Select a directory type in a file name then click on Save The selected directory is the project directory When data is recorded all static measurement data and all simulated data is saved under this directory Record data Click on the Le Record button The recording starts when the conditions set in the Timebase editor are met When the recording is finished the Recording Name dialog box appears Click on OK to accept the default name for the recording After the recording is saved the recording name appears in the project view below Data Viewer View recorded data Click on the recording name in the project view The data displays that were setup when the data was recorded appear Click on the gt Play button to start data playback To stop data playback click on the m Stop button See To view recorded data on page 3 17 for instructions on viewing the recorded data Getting S
34. w for switching between the various instruments and Signal Conditioning Plug ons SCPs in the system The Channels editor contains a row for each channel in the system and columns that contain identification and configuration information for each channel e Timebase provides a way to specify when recording starts and stops In addition it allows independent measurement rates to be set for different types of instruments e Test Properties provides a place for user information to be entered about the recording Entering information is optional Data Recorder allows recording to be enabled or stopped Actual recording starts after the conditions set in the Timebase editor have been met Displays can be added to monitor the data acquisition in real time Data Viewer displays an information screen that describes how to view previously recorded data If data has been recorded and saved in the current project its recording name is listed below Data Viewer and the setup editors for the recording are listed below the recording name Selecting a recording name allows the data displays to be viewed that were in place when the data was recorded add displays and playback the data In addition it is possible to select a region of the data file to export Related Documents displays an information screen that describes how to add various documents to the project If documents have been added to the current project they are listed below Related
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