Can I create pulse train above 167s?

I need to generate pulse train with pulse width longer than 167.7 sec. using card 7030/6030E. Can anybody help me? Thanks

The 167.7 sec limitation is caused by dividing 100 kHz by 2^24. So all you have to do is use two counters instead of one. Use the first counter to generate a pulse train slower than 100kHz and you can use the second counter to generate a very slow pulse train if you set its source to the out of the previous counter. You will have to use the pulse specs on the second counter, because it is going to be used to divide down the initial pulse train.
I hope this helps.
Joshua

Similar Messages

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    I feel foolish for not being able to figure this out, but it still doesn't work. Attached is the VI I use now. Counter 0 generates a finite pulse train and I programmed Counter 1 to generate a retriggerable single pulse triggered by CtrOinternaloutput. I still get the same error message: -50103 The specified resource is reserved. The operation could not be completed as specified.
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    Attachments:
    Shutter_AND_lamp_trigger.vi ‏103 KB

  • How can I generate pulse trains whenever the value of the gate changes?

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    Have a nice day,
    Jun

    Jun;
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    Images of my current front panel and block diagram are attached. If you would rather have the actual VI's just let me know. Any help and/or explanation on this is greatly appreciated. Thanks in advance.
    Attachments:
    Front_Panel_Control.jpg ‏278 KB
    Block_Diagram_Control.jpg ‏263 KB

    Hello Cgifford,
    Welcome to National Instruments Forums.
    To output your signal to the PFI lines,
    you can use external connectios between OUT0 and PFI lines. You can also use
    the backplane to do so by routing into the same RTSI line.
    1)
    On the SCOPE and FGEN, the name of the
    terminals are actually “PXI Trigger Line x/RTSIx” but on the 6602 you might
    need to route the signal using the property:
    You can also use the DAQmx route signal which perform the same opperation.
    2)
    This will depend on the frequency of
    your pulse train. If this is lower than about 10 ms, then you can probably
    place this on a loop and start and stop the acquisition every time. If the
    frequency is higher than this, you will have to use:
    -       Scripting on the FGEN side (read more)
    -       MultiRecord Fetch (more information in the scope help file
    section “Acquisition Functions Reading versus Fetching”).
    3)
    The short answer is yes. The longer one
    might depend on how tight you need the synchronization to be (us, ns, ps). For
    very tight synchronization, you should look into here.
    Message Edited by Yardov on 06-18-2007 03:14 PM
    Gerardo O.
    RF Systems Engineering
    National Instruments
    Attachments:
    property.JPG ‏7 KB

  • Can daq 6035e,or 6024e used to count pulse train

    i need to count two digital pulse train coming from an encoder, whose frequency keeps changing. the encoder is a typical feed back from servomotor

    Hi,
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  • Can the DAQPAD-6016 generate a pulse train?

    If so, what is the procedure and what pins are involved? Also, where can I find a 6016 Users Manual showing a pinout description?

    Avana,
    Greetings!
    You can find a pinout for the 6016 from this manual:
    http://sine.ni.com/apps/we/nioc.vp?pc=res&cid=14041〈=US&p_0=manual
    AND
    Yes, you can setup a pulse train. You would use the counters. If you are using LabVIEW you can go to Help >> Find Examples to help you set this up.
    Hope this helps,
    AnujD

  • USB-6009 pulse train generation with digital output....

    Hello!
    I've bought a new USB NI-Card (USB-6009) and now I'm trying to adopt an old vi that uses traditional DAQ drivers. I wrote that vi for a PCI NI-Card (PCI-6024E), which has two counters to generate two pulse trains simultaneously. Now I've only one counter and that's why I'm searching for a good way to create pulse trains using a digital output! The pulse trains are both ranging between 100 Hz and 100 kHz.
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    Kind regards,
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    You can't do it with this low cost board. Both digital and analog outputs are software timed only. The analog out is rated at only 150  samples/sec and the digital is about the same. You can't even use one of the counters because it is not a hardware timed counter output. It is an event counter only as an input.

  • Two retriggerable pulse generations after a pulse train generation

    I am trying to generate 3 pulse trains (ABCABCABC...) one after another.
    The program currently I am using generates 2 pulse trains (ABABAB.....).
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    I understand that the retriggerable pulse generation can generate a pulse train triggered (or gated) by other counter output.
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    Secondly, I don't know if the whole code will generate ABCABCABC...
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    pchemjjang

    pchemjjang,
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    Attachments:
    Counteroutput.jpg ‏49 KB

  • How do I send a 2-10 MHz pulse train to my DAQ 6052E why simultaneously reading in data? I'm using the NIDAQ Tools with Igor Pro.

    I need to send a continuous 2-10MHz TTL timing signal to a low pass filter (to set the cutoff frequency) while I collect data from one of the analog inputs. I'm hoping that I can send the TTL signal and collect the data through the same DAQ 6052E board.
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    You can program one of the counters to generate a continuous pulse train. Once programmed to do so the counter needs no further interaction. It will continue to generate the signal until stopped through SW. So you can start the counter using the functions provided to you, then forget about it and program the AI operations.
    Christian Loew, CLA
    Principal Systems Engineer, National Instruments
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  • How can I create a pulse train with varying pulse widths?

    I'm trying to create a finite pulse train that varies its duty cycle. I was hoping there was a clever way to do this neatly. I've attached a very rough picture of the train I'm hoping to make, with the pulse widths defined with t, the delay between pulses d, and a total of N+1 pulses. Thanks!
    Edit: My current method is to use the pulse train function, and actually create 2N+1 pulses, stacking the "double length" pulses.
    Attachments:
    ExPulseTrain.png ‏9 KB

    I wound up just building the first short pulse, and then the train of longer pulses, and sticking them together. I attached a screenshot of the code I went with.
    Attachments:
    VarPulseTrain.png ‏29 KB

  • PCI 6602:How can I use the digital lines of the board and in the same time to generate pulse train using a counter?

    Hello!
    My problem appeared when I tried to update my code from Traditional NI-DAQ Legacy to DAQmx.
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    What happens: I start to generate pulse train on the output of the counters,  no errors encountered, but when I try to modify the state of one line of the digital port the generation of the pulse train is stopped. This is happening when I start the task associated to the digital port.
    My question is: it is possible to create a channel on the digital lines without altered the channels created for the counters?
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    Measurements: Resource requested by this task has already been reserved by a different task.
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    Which resources are used by the counters 2 to 7 from the PCI-6602 board and the counters 0 and 1 do not use?
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    Ciprian
    Solved!
    Go to Solution.

    Hello Jordan, thank you for your reply.
    I am sorry but I can not see or run your example, I don't use LabView, I use Visual C++ for developing.
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        nStatus = DAQmxCreateTask("",&m_taskHandle);
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            nStatus = DAQmxSetTrigAttribute (m_taskHandle, DAQmx_DigEdge_ArmStartTrig_Src,"Dev4/PFI17" );
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        nStatus = DAQmxSetCOCtrTimebaseSrc(m_taskHandle,"Dev4/count5","20MHzTimeBase" );
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        nStatus = DAQmxClearTask(m_taskHandle);
        m_taskHandle = 0;
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  • Sequence 3 tasks - create a finite pulse train-create a delay by creating a pulse train-measure pulses

    Hello
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    In attachment i send a picture with my program.
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    picture with my program
    ftp.ua.pt/incoming/labview/sheme
    Marco

    Hi,
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    Regards
    Omar S. NI

  • How do you create a finite pulse train using a FP-CTR-502?

    I have recently replaced my FP-PG-522 module with a FP-CTR-502 module, to achieve higher output frequencies (FP-PG-522 max output freq is 5kHz, wheras the FP-CTR-502 max output freq is 16 kHz).
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    Christopher Farmer
    Certified LabVIEW Architect
    Certified TestStand Developer
    http://wiredinsoftware.com.au
    Solved!
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    Certified LabVIEW Architect
    Certified TestStand Developer
    http://wiredinsoftware.com.au

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    Message Edited by Kevin Price on 11-01-2007 10:04 AM

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