How to read the analog inputs of one Board of R for (PXI-7851R) series

You can guide me please with the steps for reading of the analog inputs of a series a. card I use as the target fpga PXI-7851R.

Have you looked at the examples provided with LabVIEW? There are examples showing how to read the analog inputs.

Tags: NI Software

Similar Questions

  • How to read 3 analog inputs simultaneously with 6070E?

    Hello

    I wanted to read 3 analog signals simultaneously using cards of acquiring data NI PXI-6070E and Labview 2010.

    I can with success read and record the 1 signal (which you can see in the attachment), but do not know and can not find examples on how to read 3 signals simultaneously. Any help, especially a simple example would be great.

    Thank you!

    Just click on = pull down from the constant physical channel, select Browse and shift-click or Ctl-click here to add other channels. You can also type in new channels with the ai0 syntax: 2 for three continuous channels for example.

  • How to synchronize the analog input and the output of two different USB data acquisition boards

    Hi all

    I have two tips very different USB NI USB 6008 case, which I use to acquire the data (analog input) and a USB of NI 9263 is a output analog only site I use to route a signal (in this case a square pulse). The reason why I use the outputs analog 6008 is because I need to deliver negative tension and need the full +/-10 v range.

    Looking at similar positions, I'm pretty sure that I can't use an external trigger or a common clock, I also tried to use the timed synchronization of the structures but no cigar.

    I'm including a quick vi I whipped showing how the jitters because of the lack of synchronization signal. The OD of the 9263 connects to AI in the 6008 in this example.

    I talked to a specialist in the phone and tols me that's not possible.

  • How do I get the analog input signal and send it to output analog (real time)

    Hello world

    I do a simple task in Visual C++ and I use PCI-6221(37 pin).

    Basically, I want to send the same signal of "analog input" to the "analog output".

    at the same time (or almost), to make real-time application.

    Can someone provide me with sample program please.

    I would be grateful if you could provide me with the great tutorial that explains

    step by step everything about NOR-DAQmx for C/C++ programming.

    Best regards

    Khassan

    This is my code in C++, you can optimize it if that seems too messy. This code reads the analog input signals and exports it through the analog outputs.

    To make this code additional work of the directories include and library directories must be added to OR.

    I hope it helps someone.

    #include
    #include
    #include "NIDAQmx.h".
    #include

    #define DAQmxErrChk (functionCall) {if (DAQmxFailed (error = (functionCall))) {goto error ;}}

    int main (int argc, char * argv [])
    {
    Int32 error = 0;
    TaskHandle taskHandleRead = 0, taskHandleWrite = 0;
    Read Int32 = 0;
    float64 context [1000];
    char errBuffRead [2048] = {'\0'};
    char errBuffWrite [2048] = {'\0'};
    bool32 done = 0;
    Int32 wrote;

    DAQmxErrChk (DAQmxCreateTask("",&taskHandleRead));
    DAQmxErrChk (DAQmxCreateAIVoltageChan(taskHandleRead,"Dev1/ai0","",DAQmx_Val_Cfg_Default,-10.0,10.0,DAQmx_Val_Volts,NULL));
    DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandleRead,"",100.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,0));
    DAQmxErrChk (DAQmxCreateTask("",&taskHandleWrite));
    DAQmxErrChk (DAQmxCreateAOVoltageChan(taskHandleWrite,"Dev1/ao0","",-10.0,10.0,DAQmx_Val_Volts,NULL));
    DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandleWrite,"ai/SampleClock",100.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,1000));

    DAQmxErrChk (DAQmxStartTask (taskHandleRead));
    DAQmxErrChk (DAQmxStartTask (taskHandleWrite));

    While (! fact &! _kbhit())

    {

    DAQmxErrChk (DAQmxReadAnalogF64(taskHandleRead,1,10,DAQmx_Val_GroupByScanNumber,dataRead,1000,&read,));

    DAQmxErrChk (DAQmxWriteAnalogF64(taskHandleWrite,read,0,10.0,DAQmx_Val_GroupByChannel,dataRead,&written,));

    }
    _getch();

    Error:
    If (DAQmxFailed (error))

    {
    DAQmxGetExtendedErrorInfo (errBuffRead, 2048);
    DAQmxGetExtendedErrorInfo (errBuffWrite, 2048);
    }
    If (taskHandleRead! = 0)

    {

    DAQmxStopTask (taskHandleRead);
    DAQmxClearTask (taskHandleRead);
    }
    If (taskHandleWrite! = 0)

    {

    DAQmxStopTask (taskHandleWrite);
    DAQmxClearTask (taskHandleWrite);
    }
    If {(DAQmxFailed (error))
    printf ("error DAQmx: %s\n",errBuffRead); ")
    printf ("error DAQmx: %s\n",errBuffWrite); ")
    }
    printf ("end of the program, press the Enter key to quit\n");
    GetChar ();
    return 0;
    }

  • Reading of the analog inputs

    Good day to all,

    I use NEITHER-7350, LAbview 8.5 and try to measure the voltage from a power source.

    Is there a screw that read the analog inputs. I can't open the examples.

    Thank you

    Have you watched the DAQmx? Create a virtual channel, start the task and read the value.

    http://zone.NI.com/DevZone/CDA/tut/p/ID/5370

  • Registration of the analog inputs in continuous (Clipping)

    Material:

    (1) USB NI CDaq-9174 chassis

    (2) NEITHER 9234 Analog Input Modules

    (1) digital input module 9402 OR

    Goal/Requirements:

    To read the analog inputs continuous only in digital input is "high".

    Problem:

    Timestamp in log file prooves that logging is not continuous. It seems that the first seconds of 0.6 of every second is recording, I guess the other 0.4 is used to write custom? I can't use VI SignalExpress for this application because logging must be triggered by a high digital input.

    File is attached. Thank you all!

    To detect changes in the digital input, you need to compare the current value to the previous. The easiest way to do this is to plug the output of digital playback on a shift register. The Boolean function involves will tell you when a transition has taken place.  See the central part of the image below. If you exchange the true and the false case of case structures, you not the inversion function.  Look at the help file for more information on what the function actually implies.

    You must also change the wiring of the name of input for writing custom file FIle.vi so that the name is automaticlly changed.  Depending on what you want the naming system to be, that it can be simple or rather complicated.

    Lynn

  • How to read the NI 9201 Module lab mode analog input signal

    Hi all

    IAM using the module Crio-9012 real-time controller

    ND iam using NOR-9201 for entry and exit of NI9263 for

    I have configures cRIO 9012 on my Pc

    But how I'll take analog input using the module NOR-9201

    Thank you

    TC

    Hello

    I recommend you take a look at the following examples in the example Finder LabVIEW.  If you go to help--> find examples, you will see this window.  Just search 9201 and you will see 2 examples:

    I hope this helps!

  • How to write constantly to analog output and read from analog inputs

    Hi all -

    I had a question about writing continuously to analog output reading simultaneously an analog input.

    It's my first time to post a message to the community, so please let me know if I made mistakes.

    I use Labview 2011 with a NEITHER-DAQ USB 6215.

    I'm looking to generate a waveform and write it continuously in an analog output. It is then connected to an entry on the acquisition of data, where I am trying to sample the analog signal. (I realize, there is a system of trivial, but I'm hoping to build on it once I have run).

    The task of reading from the analog input works fine, as I tested it in several other cases. I have a problem writing to the analog output.

    For this task, I tried to follow the "Gen Cont Wfm Clck Int' VI to generate the wave form and start the task. I then try to write to the output of the analog timed loop. However, it does not seem to transmit a signal and doesn't give me any errors.

    I have attached the VI but also a screenshot.

    Please let me know if anyone has any ideas. I would really appreciate the help!

    Thank you

    Peter Borgstrom

    We will review your tasks one at a time.  First of all, the task of generation/Analog output Waveform.  Generate you a waveform (I'm unsure of your VI if it is a fixed waveform or not) and send it to a defined output function to produce a waveform continuously, using N-channel and samples of N (where you set not these previously).  You should not put this inside has timed loop, as the DAQ hardware has its own clock - if you simply put it in a while loop (with a stop to break out of the loop), the loop will call the function for the first points of N, wait until all N have been taken out, then call it again to another N points (up to what you press Stop).

    Now, suppose that you have the output connected to a load voltage (say a decent resistance).  You can wire the input terminals of your A/D converter through the same load and set up a similar analog input loop, running in parallel (i.e. in its own independent of the OD loop, while loop).  You pourriez start together (with, say, a merged error since the initialization code line loops HAVE and AO become lines of error in "loops of sampling" described above), but you might want to delay loop (a little) the AI so that the OD has a chance to set the voltage before the bed.

    I hope this helps.

    BS

  • read the analog signal 0-10 volts of NI6123

    I'm reading the analog signal of NI 6123. The range of the analog signal is 0 to 10 volts. This works well when the signal voltage is 0 to 5v (0 ~ 32767). But when the signal is 5 to 10 volts, the value read is always 32767. I also tried the different reading function: DAQmxReadBinaryI32, DAQmxReadBinaryU16, DAQmxReadBinaryU32. The value is identical to DAQmxReadBinaryI16. My OS is windows vista. Here's the part of my codes.

    **************************************************************************************************************************************************************************

    Create analog data tasks.

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

    DAQmxErrChk (DAQmxCreateAIVoltageChan(datHandler,"Dev1/ai0:7","",DAQmx_Val_Cfg_Default,-10,10,DAQmx_Val_Volts,NULL));)

    DAQmxErrChk (DAQmxCfgSampClkTiming(datHandler,"",RATE,DAQmx_Val_Rising,DAQmx_Val_ContSamps,RATE*MAXLAS));

    DAQmxErrChk (GetTerminalNameWithDevPrefix(datHandler,"ai/SampleClock",trigName));

    Create counter tasks.

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

    DAQmxErrChk (DAQmxCreateCICountEdgesChan(ctrHandler,"Dev1/ctr1","",DAQmx_Val_Rising,0,DAQmx_Val_ExtControlled));

    DAQmxErrChk (DAQmxCfgSampClkTiming(ctrHandler,trigName,RATE,DAQmx_Val_Rising,DAQmx_Val_ContSamps,RATE));

    DAQmxErrChk (DAQmxRegisterEveryNSamplesEvent (datHandler, DAQmx_Val_Acquired_Into_Buffer, SPLEEN, 0, EveryNCallback, NULL));

    DAQmxErrChk (DAQmxRegisterDoneEvent(datHandler,0,DoneCallback,));

    Start the task.

    DAQmxErrChk (DAQmxStartTask (ctrHandler));

    DAQmxErrChk (DAQmxStartTask (datHandler));

    In the call back function:

    DAQmxErrChk (DAQmxReadBinaryI16 (datHandler, SPLEEN, 3.0, DAQmx_Val_GroupByChannel, data.laser, MISS * MAXLAS, & (data.dataRead), NULL));

    DAQmxErrChk (DAQmxReadCounterU32 (ctrHandler, SPLEEN, 3.0, data.counter, SPLEEN, & (data.ctrRead), NULL));

    write data to the file.

    data.cfile.Write (data.counter, sizeof (int32) * RATE);

    data.cfile.Write (data.laser, sizeof (int16) * RATE * MAXLAS);

    **************************************************************************************************************************************************************************

    Thanks in advance

    To make sure that your device is working properly, I recommend first to test the entry in measurement and Automation Explorer (MAX) analog.  You can test your device by right clicking on it in the configuration tree and selecting test panels.  See if you acquired signal 0 - 10V as you expect.  The next step would be to try one of the sample programs that perform a task of analog input.  These examples can be found in the start menu > programs > National Instruments > NOR-DAQ > text based code supported.  Try an example that does an analog input continues and double bed (instead of binary data not adjusted).

    Your program looks good at first so I found nothing that stood out.  However, one thing to check is if your function generator (or signal source) expects a 50 ohm or high impedance.  This could cause reflections of the signal and cause the device to possibly read a voltage of half of the desired value.

  • I can't watch the analog inputs in hearing CC 2014

    I have a M-Audio M-Track more USB audio interface. Digital interface output is connected via coaxial RCA to my receiver. The analog inputs normally receive a signal from a phono preamp line, since I transfer a lot of vinyl to the computer to listen to in my car and my phone.

    The thing that I'm trying to understand is why the hearing does not allow me to monitor the analog inputs. I can monitor them very well when I use Studio producer One of the Presonus. But the hearing does not allow me to follow, although it does not record the signal and then I can read.

    The audio device at the hearing, I've chosen is the ASIO of M-Audio driver. Under audio mapping I can't select anything other than the analog inputs and outputs. It is not an available digital output, which could be part of the problem, perhaps hearing does not allow the signal to convert analog inputs to the digital output. However, as I said a producer Studio control perfectly well, so the analog/digital real-time monitoring is allowed by the device.

    My hardware is PC with Windows 8.1 Pro 64 bit, i7 3930 k, 32 GB RAM, card mother Asus P9X79 Pro, and some other stuff that wouldn't really make a difference in this problem.

    Any ideas?

    Thank you

    Sebastian

    Try recording in multitrack view and by clicking on the little 'I' (Input) button at the left end of the track.  It should route the signal from input to output for monitoring.

    I have the background track M, no more, so I can't try it but I think it should work but with a bit of latency (which shouldn't be a problem since you're not dubbing.

  • where and how to get the new Firefox add - one of who is spying on us. Please mail to...

    Heard speak adds the new on Fire Fox. Where and how to get the new Firefox add - one of who is spying on us. Please mail to maheshubhayakar at rediffmail.com

    edited by email address - moderator

    It is helpful if you provide a link to the article you were reading.

  • How to set the differential input for personal iotech Daq/3000 mode

    Hi all

    I currently use personal iotech daq/3000 for the acquisition of data from the accelerometer.

    I got readings of the analog input, while there seems to be no configuration for the differential mode.

    What I have is:

    selection of material - personaldaq / 3000:direct

    Double click on, then:

    Channel installation, there should be a selection of differential mode, I guess. But this is not.

    Thank you very much

    Alan

    Have you reviewed the C:\Program Files\DASYLab 10.0\manuals\IOtech_DAQ_notes. PDF? Or the help of equipment?

    The section of material assistance, using the analog inputs with DASYLab, includes pictures to show how to do this.

    Open hardware driver.

    Click the line Analog Input Channels, and then right-click to open the properties. This will display a dialog box that allows you to set the properties.

  • Open a synchronized session of the analog inputs and position

    I want to read 8 analog inputs (only three IA in the capture of code) with a PCI-6221 card at a rate of 100 samples/s, reading 10 samples/iteration. At the same time, I want to read the position synchronized with the analog inputs. Is this possible? If I just merge the position with the analog signal I get 10 readings of position for each 100 analog input readings (see chart - Red's position). For the control of the movement, I use the pci-7342 with UMI-7764 interfaces. Could someone help me out here please?

    Not necessarily. As said, speeds of up to 200 Hz should work fine with a 7342. If this is not enough, of course a 7350 could be used, but there is also a completely different approach that should work with your current hardware:

    7342, you may also route the phases of encoder to the pins of the RTSI. You can use a counter on the 6221 to measure the position of your axis based on the singlas you have routed the RTSI pins. Now you can use "Measure of Position buffered" (see DAQ examples) to measure the position with the same source of synchronization than your analog signals.

    I hope this helps,

    Jochen

  • Don't know how to read the results of netstat EI s list? If I received 860592506 bytes sent from 43421482 how to convert MB? And does this mean byte received?

    Don't know how to read the results of netstat EI s list? If I received 860592506 bytes sent from 43421482 how to convert MB? And does this mean byte received?

    Hello

    This shows the total number of bytes transmitted and received via the Ethernet card. This is the total of the amount of use up to this day.

    This includes all the Web sites you have visited and emails you sent, etc..

    You can calculate using one of the following methods:

    Method 1:

    860592506 / 1048576 = 820,72 MB

    Method 2:

    Multiply 860592506 with 9.53674316 * 10 ^-7 that will give us the result in mega bytes.

    860592506 bytes = 820 MB 9MB not, accept my apology for the miscalculation.
    Similarly 43421482 acroos = 40MB

  • How to read the values of the field of LOV disabled?

    Hi all

    I have a requirement, based on values that we entered one of the LOV fields, then we are arising from the new values based on the value that we entered this field of LOV. And then I must by default new LOV values derived in a two other fields of LOV and then disable them. Once the fields are disabled, then I'm not able to read the values using the pagecontext.getparameter... I get nothing when I tried to read using the pagecontext.getparameter.

    Pointers on how to read the values of disabled field/LOV?

    Thank you
    Clarriiza

    1. you already have values, and that's what you set in the LOV before turning off, right? So why do you need to recover again from the LOV.

    2. are you disabling or making it readonly? I think that if it is disabled, you might still be able to get the value using pageContext.getParameter.

    3 have you tried to get the handle to the LOV bean and get the value using lovBean.getValue (pageContext)?

    4. another Option is to combine the value of a FormValue Bean also (as well as the LOV bean) and retrieve it from FormValue.

    5 BTW, why are, why you're seen LOV if you disable it? Can't you just a TextBox?

    See you soon

    AJ

Maybe you are looking for

  • White screen on my Satellite M34-S456

    -Do not know how - I managed to reload Windows XP Professional on my Satellite M34 S456.I got a white screen with a blinking cursor in the top left of the screen for days.Try of BIOS (via F12 F2 &) & kept getting the white screen). Now that is reload

  • The upgrade of the GPU on a H50

    I bought my wife a H50 Lenovo desktop computer. It's an i5-4460 with 12 GB of ram. I had two questions: first, how can I find out what type of motherboard there? I serached in msinfo32, but it just says: Lenovo with no additional information. I wante

  • Silverlight is gaiving trobble I want out

    How to uninstall silverlight on my computer

  • How can I find the ink levels when I scan, which allowed me to print.

    How can I find my ink level when I scan, allowing me to start printing.

  • Generate a Zig Zag model Challenge

    I worked on the contribution of the image control fill patterns. Drawing dots and lines by using the image control funcitons provided can be slow, but write a Boolean array for values of a pixel of an image control is fast, so I built models using ta