How to acquire data through multiple channels in parallel using PXI 6070 E, PXI 4071 and LabVIEW?

Hi,
I am using NI LabVIEW, NI PXI 4071, and NI PXI 6070E to measure current through a variable resistance. Now, I am using one channel from SCB-68, but I want to add another channel in parallel so that I can have two resistors instead of one that I cam measure current through them.
I have attached a Pdf file showing the setup for hardware in use and LabVIEW code also.
Can anyone look at these files and give me guide lines or ideas that can help me resolving this issue, please.
Thanks in advance.
Best Regards,
Shaheen.
Solved!
Go to Solution.
Attachments:
IV copy for HS.vi ‏55 KB
Layout of NI Cards.pdf ‏248 KB

Your 4071 can only do one measurement at a time. Your DAQ cannot measure resistance either nor has it got any analogue inputs.
However, you could use a multiplexer and multiplex your 4071 DMM. This wont give you simultaneous measurements but can acquire data one after the other, the speed is obviously dependent on the multiplexer you choose!
Hope this helps.
Beginner? Try LabVIEW Basics
Sharing bits of code? Try Snippets or LAVA Code Capture Tool
Have you tried Quick Drop?, Visit QD Community.

Similar Messages

  • I want to acquire data for multiple channels using PCI 6120 that works on traditional DAQ. I cannot access more than one channel, can someone help me or if someone has data acquisition vi for PCI 6120, please send me over . Thanks

    I have PCI 6120 card and I want to acquire data for more than one channels. I'm using traditional DAQ to get it. But it does not work for more than one channels. If someone has a data acquisition vi for PCI 6120. Or some suggestion how to aquire data please let me know.
    Thanks

    Hello DSPGUY1,
    You can definetly acquire from several channels. For your convenience, I have appended below the content from help that tells you how to configure it:
    "channels specifies the set of analog input channels. The order of the channels in the scan list defines the order in which the channels are scanned during an acquisition. channels is an array of strings. You can use one channel entry per element or specify the entire scan list in a single element, or use any combination of these two methods. If x, y, and z refer to channels, you can specify a list of channels in a single element by separating the individual channels by commas, for example, x,y,z. If x refers to the first channel in a consecutive channel range and y refers to the last channel, yo
    u can specify the range by separating the first and last channels by a colon, for example, x:y."
    Hope this help.
    Serges Lemo
    Applications Engineer
    National Instruments

  • How to acquire data from multiple dataports at the same time

    Hi,
    I studied the multithreading section of Labview, but still have no idea
    how to make it work. Let me briefly explain my situation. I need to
    develop a program that can control and acquire data from 4 serial
    ports. I have 4 buttons to control starting or stopping acquisation
    from the corresponding port. Every acquisation process is a while loop.
    How can I start a new acquisation loop (eg. from COM2) while the loop
    for COM1 is still running? In other words, I wish the 4 loops running
    independently, and are controlled by their corresponding buttons only.
    Thanks for any suggestion.
    Jin

    Hi Anonymous,
          If I were you, I'd create one VI (call it Port.vi) to listen to one port - then make it reentrant.  Drop 4 copies of Port.vi on your Main diagram.  Port.vi inputs could include a VISA reference, a "Start/Stop" notifier and maybe a "Quit" occurance.  Wire to each copy of Port.vi a unique VISA reference and a unique "Start/Stop" [boolean] notifier - let all the copies share the same Quit Occurance.
    In Main, have one event case for each of your stop buttons.  When a button is pressed, send the appropriate Start/Stop notifier!
    ... of course you could accomplish the same thing with four identical loops right in your main diagram, but the more complex the port-handling gets, the easier it will be to manage in one place instead of four.
    Cheers!
    When they give imbeciles handicap-parking, I won't have so far to walk!

  • Error when running VI to acquire data from multiple channels

    Hello there, I am currently trying to write a LabVIEW program interfacing with the Agilent 34970A data acquisition unit. Have managed to get seperate VIs to acquire temperature and voltage data and to graph the data. Running them separately is fine.
    However when I try run one after the other, (ie, run temperature acquisition VI, then voltage acquisition VI; or vice versa) the first one runs OK, but upon trying to run the second one I get a VISA error along the lines of "VISA write". When I try to run the first VI again, that one fails to acquire readings as well. Any way I can rectify this problem? (Want to combine the VI's into a single program.) Thanks!

    Hi Laeral:
    You should be able to just open one VISA session then write and read both commands then close the session at the end. This sounds to me like an error that comes from trying to open two VISA sessions to the instrument at the same time. I have attached some very basic LabVIEW VISA code that writes and reads two different commands. Hopefully it will get you started.
    Regards,
    Emilie S.
    Applications Engineer
    National Instruments
    Attachments:
    Basic VISA Example Two Commands.vi ‏39 KB

  • How to retrieve data through table by passing date

    hi
    i hv made one table which stores email id & cureent date when entered,
    can anybody tell me how to retrieve data through table by passing today's date to last week date,so it can retrieve all email ids which are entersd in last week.
    thanks

    http://www.google.com/search?&q=sql+tutorial

  • How to acquire data from the memory of multimeter

    I am a beginner of Labview. I don't know how to acquire data from the memory of multimeter.
    I read some examples about DAQ, but it seems not similar to my case. I can't use DAQ in my computer, as I don't have DAQ board.
    Could anybody give me some guide? Similar examples would be great.
    Solved!
    Go to Solution.

    Confirm that you have the VISA Run Time Engine on the target machine. If you do not have it installed, you can install the VISA Run Time Engine from ni.com.
    Error -1073807346 Using VISA When Running LabVIEW Executable On Target Computer
    Message Edited by Mathan on 10-12-2009 07:11 AM

  • How to acquire from various AI channels simultaneously with a different range for each one?

    How to acquire from various AI channels simultaneously with a different range for each one?
    In LabView I have found some examples but in C there isn't seem to be any.
    Solved!
    Go to Solution.

    Or you can add channels one by one with individual instructions: the follwing code compile and runs with no errors on a vitual daq device:
    err = DAQmxCreateTask ("", &taskH);
    err = DAQmxCreateAIVoltageChan (taskH, "Dev1/ai0", "AI0", DAQmx_Val_Cfg_Default, -5.0, 5.0, DAQmx_Val_Volts, "");
    err = DAQmxCreateAIVoltageChan (taskH, "Dev1/ai1", "AI1", DAQmx_Val_Cfg_Default, -10.0, 10.0, DAQmx_Val_Volts, "");
    DAQmxStartTask (taskH);
    err = DAQmxReadAnalogF64 (taskH, 5, 10.0, DAQmx_Val_GroupByChannel, val, 10, &read, 0);
    DAQmxClearTask (taskH);
    Proud to use LW/CVI from 3.1 on.
    My contributions to the Developer Zone Community
    If I have helped you, why not giving me a kudos?

  • Insert data into multiple entities at once using a view object

    Hi,
    I'm trying to insert data into multiple entities at once using a view object, but unfortunately it doesn't seem to work. The two entities have a 1:1 association. I created a view object which contains both entities and I made sure they aren't read-only. But like I said it doesn't work, I can't insert data in both entities at once... :(
    Is this possible? And how (if it is)?

    Hi,
    I'm trying to insert data into multiple entities at once using a view object, but unfortunately it doesn't seem to work. The two entities have a 1:1 association. I created a view object which contains both entities and I made sure they aren't read-only. But like I said it doesn't work, I can't insert data in both entities at once... :(
    Is this possible? And how (if it is)? Peter:
    This is definitely supported and tested. Please send us the exception stack trace. You must running into other problems. A few things to note:
    A) You have to mark the entities as both updateable (not read-only) and not reference-only.
    B) If you're not seeing an exception stack, turn on diagnostic. Here is how:
    To turn on diagnostic, go to the IDE,
    1. Select the project.
    2. Do right mouse click and select "Project Settings..."
    3. On the Settings dialog, select Configurations/Runner.
    4. In the righthand side pane, you should see a textbox for "Java
    Options". Please add the following JVM switch:
    -Djbo.debugoutput=console
    Then, rerun. The run command should include
    -Djbo.debugoutput=console as in
    "D:\JDev9i\jdk\bin\javaw.exe" -Djbo.debugoutput=console -classpath ...
    You should now see a lot more output on the IDE's message window. Here you should see the exception stack trace.
    If you invoking your app directly from command prompt, just add "-Djbo.debugoutput=console" after your "java.exe".
    Thanks.
    Sung

  • How to extract data from Essbase to Flat File using ODI

    Hi,
    Anyone know how to extract data from Essbase to Flat File using ODI?
    Thanks in advance.
    Regards,
    Sumardi

    Hi,
    Have you read through :-
    Oracle Data Integrator Adapter for Hyperion Essbase Getting Started - http://download.oracle.com/docs/cd/E10530_01/doc/epm.931/odiess_getting_started.pdf
    Oracle Data Integrator Adapter for Hyperion Essbase User's Guide - http://download.oracle.com/docs/cd/E10530_01/doc/epm.931/odiess_users.pdf
    If you have read them and are still have a problem at what stage are you having the issues?
    Cheers
    John
    http://john-goodwin.blogspot.com/

  • How to get data from a USB-UIRT device using Labview?

    How to get data from a USB-UIRT device using Labview?
    I'm trying to get data from a USB-UIRT device, is it posible with Labview?
    I really appreciate your help, 
    thanks

    You may want to contact the developer of the device for the API and DLL.
    http://65.36.202.170/phpBB2/viewforum.php?f=3

  • How to add list of multiple file types to file type of file dialog box in LabVIEW

    How to add list of multiple file types to file type of file dialog box in LabVIEW?
    In file dialog box there is option to add only one file type,in the list,not by seperating commas,
    regards,
    Naresh.N

    Write the file types in pattern Input string, separated by a semicolon ;
    For example:  *.vi;*.doc;*.jpeg;*.xls
    This should return the set of files with matching extensions
    Message Edited by devchander on 09-10-2008 08:02 AM
    Message Edited by devchander on 09-10-2008 08:03 AM

  • Probability Of Sending ME/SIM data through WAP enabled on SIM Using Applet

    Dear Friends,
    I am new to java card development.
    Is it possible or what is Probability Of Sending ME/SIM data through WAP enabled on SIM Using Applet?
    Is it feasible to do so? Suppose if we write one application using java card to do so and then will load the applet into Smart card(Java Card).
    Any sugestion will be highly appreciated and will of great help.
    Thanks in advance for the response.
    Regards,
    Sunil K

    Dear Friends,
    I am new to java card development.
    Is it possible or what is Probability Of Sending ME/SIM data through WAP enabled on SIM Using Applet?
    Is it feasible to do so? Suppose if we write one application using java card to do so and then will load the applet into Smart card(Java Card).
    Any sugestion will be highly appreciated and will of great help.
    Thanks in advance for the response.
    Regards,
    Sunil K

  • How can transfer data to other phones or pc using bluetooth

    Hi,
    How can transfer data to other phones or pc using bluetooth.

    You don't.
    This has never been a feature of iphone/ipod/ipad

  • How to reset the iphone without being able to use the screen or the sleep and awake button?

    how to reset the iphone without being able to use the screen or the sleep and awake button?

    Hey einsoccerstar,
    Thanks for the question. You can restore your iPhone in recovery mode utilizing the home button:
    If you can't update or restore your iPhone, iPad, or iPod touch
    http://support.apple.com/kb/ht1808
    Thanks,
    Matt M.

  • How is the performance of Mac Pro if i use it as host for windows and linux virtual machines.

    How is the performance of Mac Pro if i use it as host for windows and linux virtual machines.
    I am planning to buy a high performance PC to run my Windows and Linux servers as vitrual machines for my testing purposes.
    Initially i planned to build my own computer with recommended configurations but considering space constaints and cooling factors i think Mac Pro can be a choice. But need some inputs if Mac pro (Intel Xeon E5, 12 GB RAM) is good for running virtual Machines.

    You could even run Windows natively and still run your VM servers.
    I have seen reports and such on MacRumors and elsewhere - run Windows natively as well as VMs (can also do testing and run Mavericks in a VM under Mavericks)
    The fast internal PCIe-SSD, plus 6 or 8 cores, and 32-64GB RAM. Of course for $5,000 for 8-core, some Thunderbolt storage and 32GB/64GB RAM you can buy some serious hardware.

Maybe you are looking for

  • Empty string in an array :(

    Hi, im new here and stupid :D I have an assignment to do and im really stuck on this bit. I have 2 arrays, 1 of heights and 1 of towns - private int[] spotHeights = { 100,  // At 0 km 120,120,150,120,200,200,210,220,230,240, // Heights at 1-10 km 300

  • Logical system name in the message

    Hi, I am sending a file from non SAP system to XI, which is than converted to Idocs and goes to a SAP system. Sender File system is created in SLD and a logical system name is assigned to it. My requirement is to know that logical system name during

  • Rman backup strategy

    hi, just wanted to hear some thoughts from some pros.. platform: oracle 9i on windows i switch from user-managed backups to rman recently. My full nightly backups are abt 20GB in size on completion. we backup to tape, but i want to keep some disk bac

  • My keynote presentation file disappeared from hard drive ?

    Hello, Something very mysterious happened to me yesterday. I've been working on a keynote presentation for a week. I precise that it was my first professional work on my brand new I7 Imac on Maverick, I am used to Snow leopard on a MacBook Pro I've b

  • Web service version of a RFC

    Got posted twice.Apologies for that. Kindly post replies to Web service version of a RFC Message was edited by:         Amol Joshi