How to view analog channels during an ongoing acquisition, what type of used wave form, table, or chart?

I use Labview 8.5. and the NI USB-6210 device.

I want to display the analog channels over the continuous acquisition.

I can use the table of waveform or waveform graph. Waveform allows you to eat a history buffer. This function is very interresting and useful for my system, but I can't change this value to programming (if I do not mistake!). So, I was wondering if I can also use the waveform graph, but I do not have how to make a circular buffer to replace function "history buffer. I have to use the waveform as a data type.

What is the best solution for my problem? I would like to know if my solution is good (graphic use of waveform) and if anyone has a solution to make an effective circular buffer with the waveform data type?

Thanks in advance, best regards, Daniel

Advertisement

There is an example that comes with LabVIEW called "XY table". It shows you how to create a history for a XY Chart buffer. The size of the history can be changed on the fly. You can adapt the VI "graphic buffer XY ' to work with a data type of waveform." This type of data consists of 3 elements: start on time, delta t and table of values. The only thing that you should be buffering is the array of values.

Tags: NI Software

Similar Questions

  • How to view NTUSER. DAT file as to the registry without using it?

    How to view NTUSER. DAT file as to the registry without using it?

    The file is from a different Windows instalation!
    I have Win 7 but it comes from my old Windows xp.

    Hi Leonnis,

    There are many ways to read the registry file without using regedit.
    Some ways:
    RegLookup: RegLookup project is dedicated to the direct analysis of Windows NT registry files. RegLookup is distributed under the GNU GPL license and is implemented in ANSI C. RegLookup provides a C API, a Python module and command line tools to access registry data structures.
    Download here: http://projects.sentinelchicken.org/reglookup/
    RegViewer: Is GTK 2.2 based registry Windows GUI file browser. It is platform-independent for the review of the files of Windows registry from any platform. Particularly useful in forensics files Windows of * nix systems.
    Download here: http://regviewer.sourceforge.net

    RegRipper:

    RegRipper is an application of forensics software open source developed by Harlan Carvey. RegRipper, written in Perl, is a tool for extracting data from Windows registry.
    Download here: http://regviewer.sourceforge.net
    KRegedit:
    kregedit is a KDE utility for the visualization of the native Windows registry files. It is similar to the regedt32 utility that is found on most Windows platforms. Only the format of the NT (NT4/2000/XP) registry is supported.
    Paulo Breim
    Centro Brasileiro Pericia

    Help, please!

  • How to create analog channels in Labview

    I need to create 4 channels analog pressure through card PCI-6229 in Labview v8.2 and I have to set these channels so that labview can communicate with the card... But I'm failing to do...

    If you have an idea, then please e-mail me back...
    Waiting for your valuable advice...

    Thank you all for reply

    but my problem is still not resolved I want yo not individually define the four channels at once.

    If possible please sen me some screenshots.

    Thank you

    waiting for your advice

  • How to view stereo channels separate on the timeline

    With the help of FCPX 10.2.3

    I want to be able to equalize my chanel left and right separately.  But I can't find any way to separate the left and right channels on the timeline or edit them separately in Inspector audio. Thanks for your suggestions?

    AAre you use expand audio components in the timeline?

  • How to select two channels and send to a series to write using the loop of the case

    I had a series write who have different orders to different situations. The same reading series should read both. How can I do it. Means that if I have a 500\r\nZ of the chain. I have a case, it should be - Zand 500\r\n other case + 500\r\n Z. But for boyh these cases must be read with a write serail. How can I do ITI. Help, please

    You can't guarantee that these two conditions would not be affected at the same time.  You will need to send a separate command for each condition.

    In addition, using EQUALS on floating points is dangerous.  You could never get the condition because a little really low could be turned off.

  • How meter and analog value FIFO synchorize

    I use a card NI 6123.

    Anyone knows how to put 6 analog values and the value of the counter in FIFO with the same rate: 4 k.

    Thus, every second, there should be 6 * 4 k analog values and 4 k in FIFO counter value.

    The problem is:

    1. the counter is a numeric value, so I can't put a sampling on it. So how can I put the value of the counter in the FIFO every second of 1/4000

    2. how to sync analog channels and channel meter.

    -------------------------

    DAQmxErrChk (DAQmxCreateTask("",&datHandler));

    DAQmxErrChk (DAQmxCreateAIVoltageChan(datHandler,"Dev1/ai0:5","",DAQmx_Val_Cfg_Default,-5.0,5.0,DAQmx_Val_Volts,NULL));)

    DAQmxErrChk (DAQmxCfgSampClkTiming(datHandler,"",4000,DAQmx_Val_Rising,DAQmx_Val_ContSamps,4000));

    DAQmxErrChk (DAQmxCreateTask("",&ctrHandler));

    DAQmxErrChk (DAQmxCreateCICountEdgesChan(ctrHandler,"Dev1/ctr0","",DAQmx_Val_Rising,0,DAQmx_Val_ExtControlled));

    DAQmxErrChk (DAQmxStartTask (datHandler));

    DAQmxErrChk (DAQmxStartTask (ctrHandler));

    -----------------------------------

    Thank you

    It is possible to apply for a meter in the buffer.  (this is actually preferred).  Simply specify a sampling and source clock.  Given that you want the meter to "lock" data from the meter to the same rate as the sample analog clock to simply specify this sample clock as the sample for the meter clock.

    An example of event in the buffer (life-long) count can be found here by using an external clock (your HAVE sample digital Instruments\NI-DAQ\Examples\MStudioVC2005\Counter\Count Events\CountDigEventsBuffContinuous_ExtClk clock):...\National)

    Check out this example and I think he should get you operational.

  • How to view the songs that were on the "rocket" using windows Explorer?

    How to view the songs that were on the "rocket" when buying using windows Explorer?

    Do you need the list or do you need knowledge where they are? If you are looking for the list just look for the Board of Directors. If you are looking for them on the "rocket" you must be connected in MTP Mode.

  • How to use DAQmx Read to measure several analog channels

    I have two analog inputs using USB 6221 and I want to measure the voltage of each of them.  I use vi DAQmx-read and I select input analog, 1 sample, several channels, but I do not know how to connect several channels at the entrance of the physical channel.

    Hello, Bernadette.

    For reference - I would recommend ad DAQmx questions here:

    NEITHER Forums: Multifunction Data Acquisition

    http://forums.NI.com/T5/Multifunction-DAQ/BD-p/250

    There are several ways to add multiple channels for a fast task-ni.com look for "select multiple channels DAQmx" gives me this like the hit albums:

    2X8D7F5Z knowledge base: How can I select more than one channel of NOR-DAQmx LabVIEW?

    http://digital.NI.com/public.nsf/allkb/A3A05920BF915F1486256D210069BE49

    Hope that helps!

  • How to write table values to analog channel?

    Hi all

    If I have a table of values, is it possible to write these values as an analog voltage and then stop writing when he arrives at the end of the table? If so, how does do this?

    I have attached my code that generates a table of frequency swept sinusoidal voltages and I write that out to my analog channel, when I consult my output however, I get the same display of sinusoidal repetitive time and time again. I expect for example:

    writing of wave of 1 Hz, 2 Hz, 3 Hz etc...

    but I'm getting the 1 Hz wave over and over again, I selected samples in the sample clock and pretty much done a lot of trial and error and still no luck . Any help would be appreciated!

    Daniel

    Hi Daniel!

    Take a look at this example (you can find examples of LabVIEW):

    Gen CONT tension Wfm - Int Clk - no Regeneration.vi

    Here is an another VI I did (see table). It is slightly different from the example of the LV and it should help you.

    It could be that useful...

    Julien

  • Qosmio G30-126: how simultaneously connect analog TV and TV satellite

    Hi, I have a Qosmio G30-126 and you have a problem with receiving simultaneous TV analog (by TV-in the port of integrated TV tuner) and satellite satellite set - top box (by AV-in ports).

    I can't program Windows Media Center for analog TV (but not satellite STB) per port, TV antenna and it works perfectly.
    I can't program Windows Media Center for digital satellite STB (but no TV analog) channels by AV-in port and it works perfectly.
    But I can't program Windows Media Center for the two TV analog I satellite STB, because during programming WMC forces me to choose between analog satellite or cable or SATELLITE box and does not allow me to choose two signal sources.

    For me, it's a big problem, because I have cable (analog) TV and satellite STB with digital channels. And I want to watch all the channels on my Qosmio.
    Could someone help me?

    >... because during the WMC program forces me to choose between analog satellite or cable or SATELLITE box and does not allow me to choose two signal sources.
    I think that in this statement you answered your question. I got Qosmio G30 a long time ago, and I also know that WMC can't handle with two sources of signals at the same time.
    To confirm that contact Microsoft and ask them. I mean that they have designed WMC and know how it works exactly.

    Toshiba has to provide suitable equipment (TV tuner) to provide the TV option on this laptop.

  • How to create a channel for a PXI-6509

    I'm working on a program to fight the PXI-6509. The only area that I have problems with creates the string by calling the function DAQmxCreateDOChan. I get no errors during the first DAQmxCreateTask, but get an error when you try to create the channel. Exactly how to create the channel name? In MAX, I have named the "DIO" device, do not know if it matters. Any help would be greatly appreciated.

    Hi schelgr,

    Have you had a glance examples DAQmx in finder example found in help > find examples.  In input and output equipment > DAQmx there is a lot of examples that should be able to help with this query.

    Concerning

  • How we prevent persistent reboots during the day on desktop

    You need to restart our computer of the two or three times during the day.  Turn us your computer in the morning and leavit turn it on during the day, then it turn off during the night.  What is going on???

    Looks like you may have a virus or other malware. Get your updated antivirus program and boot into Safe Mode. Note that some viruses can hide from your normal antivirus program, so you really need to scan in Safe Mode. To enter in Safe Mode when you turn on first, press F8 on every seconds until you get the menu, and then select Safe Mode. Then run a complete system scan.

    -

    Microsoft has suggestions and offerings to

    http://Windows.Microsoft.com/en-us/Windows7/how-do-I-remove-a-computer-virus

    -

    Moderator Forum Keith has a few suggestions along this line to

    http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-performance/Windows-Explorer-has-stopped-working/6ab02526-5071-4DCC-895F-d90202bad8b3

    -

    If that suits him fine. If this is not the case, use system restore to go back to an earlier date at the beginning of the problem. To run system restore, click Start-> programs-> Accessories-> System Tools-> system restore. Click on the box that says show more restore points.

    -

    You can check the corrupted system files. Open an administrator command prompt and run SFC if the above does not help. Click START, and then type CMD in the search box, right-click on CMD. EXE and click run as administrator. Then, from the command prompt type sfc/scannow.

    -

    Finally if all else fails, you can look at the rather cryptic system event log. To do that click on start-> Control Panel-> administration-> event viewer tools. Once in Event Viewer system log-click and scroll entries looking for these "error" with indicator see if you can find guidance on where the problem may be.

    `

    When you get your system in good working condition, I invite you to back up your system up to an external hard drive and make it regular periodic updates.

    -

    I hope this helps. Good luck.

  • How to view SQL LKM

    Newbie question:

    I'm trying to run an Oracle FUSION LKM (using the db link). I always get "ORA-00999 invalid view name" errors during the execution of the interface.

    I'd love to see the ODI SQL generates along the way, but I have no idea on how to trace it.

    Obviously, I haven't seen the good bit of documentation.

    Help!

    -John

    John
    You see an error, I guess in the operator. If you develop on the tree of session running, you get the steps, expand the step to view the tasks of this approach. When you double-click on one of the steps, you will see the SQL that is generated in the Description tab and the result in the immediate window, along with the execution statistics (and and lifted errors)
    Craig

  • guys, how can I stop backup during I use cellular data

    guys, how can I stop backup during I use cellular data

    iCloud backup requires a wi - fi connection. It does not backup when only cellular data are available. See: get help from backup of your device in iCloud - Apple Support

  • How to view a mac on your ipad keynote

    How to view a keynote creation produced on a mac and watch on your iPad

    1. Connect your iOS device to your computer and open iTunes on your computer. After a few moments, your iOS device appears in the left side of the iTunes (under devices) window.
    2. In iTunes, select your iOS device and then click applications.
    3. Scroll to the bottom of the application window and select Keynote (in the list of Apps under file sharing).
    4. Click Add and search for the presentation that you want to import in the window that appears.
    5. Select the file and then click Open.
    6. Open Keynote on your iOS device.
    7. For presentations, click on the + button and then press on iTunes.
    8. Tap the name of the presentation that you want to import in the list. 
 The presentation downloads on your iOS device and appears in the view of presentations.

Maybe you are looking for