How to monitor DAQ card outputs during TestStand operation?

I am trying to debug a rare failure mode on a test station that runs on TestStand. TestStand controls measurement equipment through a PCI-GPIB controller and a DUT and DUT switch box through two NI-DAQmx devices; PCI-6509, and PCI-6534. I believe that root cause of the failure is due to the software not putting the DUT into the correct state for the test. In order to check this I need to monitor the changes on the GPIB and DAQ cards. I was able to use NI Spy to monitor the commands on the GPIB bus but I have not been able to monitor the state of DAQ cards. Is there a tool that will allow me to pause TestStand during its operation and look at what logic states the PCI-6509 and PCI-6534 outputs are in? Or at least monitor the I/O of the PCI-6509 and PCI-6534 cards similar to what NI SPY offers for the GPIB cards?
Regards,
David

I am not aware of a tool similar to NI SPY for I/O cards.
However you can introduce a break point at the point of interest in a test sequence(step).TestStand will stop execution at that point.
You can then manually verify the I/O status using a DMM .
Hope this helps.

Similar Messages

  • How to initialise DAQ cards prior to AI_Vread?

    I have a problem when i use the AI_Vread function. It appears to me that the i need to initialise my daq card before it can start to pick up the readings from my voltage source. Please advise me!!!

    Hello;
    You can refer to one of the shipping NI-DAQ examples code. For your case, I believe you can look at the one named "AIOnePoint.c"; which can be found at C:\Program Files\National Instruments\NI-DAQ\Examples\VisualC\AI.
    Hope this helps.
    Filipe

  • How a DAQ card acquire resistance/position/frequency?

    I don't understand a thing...
    how a DAQ card can acquire (directly)
    a position, a frequency and so on.
    I had a look at examples folder (ANSI C)
    and found examples to read
    frequency, position.
    An ADC can acquire only voltage.
    How with a DAQ card I can acquire
    linear position, resistance and so on?
    Thanks in advance.

    Yes, normal DAQ ADC read voltages, However most DAQ-Cards provide some supply/exitation voltage/current you can use together with an sensor that deliver a voltage or a current, with thanks to Ohms law can be transposed to a voltage
    linear position -> potentiometer -> voltage
    frequency is measured with timers
    Greetings from Germany
    Henrik
    LV since v3.1
    “ground” is a convenient fantasy
    '˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

  • How to structure the DMA buffer for PXie 6341 DAQ card for analog output with different frequencies on each channel

    I'm using the MHDDK for analog out/in with the PXIe 6341 DAQ card.
    The examples, e.g. aoex5, show a single Timer  (outTimerHelper::loadUI method), but the example shows DMA data loaded with the same vector size.
    There is a comment in the outTimerHelper:rogramUpdateCount call which implies that different buffer sizes per channel can be used.
       (the comment is: Switching between different buffer sizes will not be used)
    Does anyone know what the format of the DMA buffer should be for data for multiple channels with different frequencies ?
    For example, say we want a0 with a 1Khz Sine wave and a1 with a 1.5Khz sine wave.  What does the DMA buffer look like ?
    With the same frequency for each channel, the data is interleaved, e.g.  (ao0#0, ao1#0; ao0#1, ao1#1, ...), but when the frequencies for each channel is different, what does the buffer look like ?

    Hello Kenstern,
    The data is always interleaved because each card only has a single timing engine for each subsystem.
    For AO you must specify the number of samples that AO will output. You also specify the number of channels. Because there is only one timing engine for AO, each AO will channel will get updated at the same time tick of the update clock. The data will be arranged interleaved exactly as the example shows because each AO channel needs data to output at each tick of the update clock. The data itself can change based on the frequency you want to output.
    kenstern wrote:
    For example, say we want a0 with a 1Khz Sine wave and a1 with a 1.5Khz sine wave.  What does the DMA buffer look like ?
    With the same frequency for each channel, the data is interleaved, e.g.  (ao0#0, ao1#0; ao0#1, ao1#1, ...), but when the frequencies for each channel is different, what does the buffer look like ?
    In your example, you need to come up with an update rate that works for both waveforms (1 KHz and 1.5 KHz sine waves). To get a good representation of a sine wave, you need to update more than 10x as fast as your fastest frequency...I would recommend 100x if possible.
    Update Frequency: 150 KHz
    Channels: 2
    Then you create buffers that include full cycles of each waveform you want to output based on the update frequency. These buffers must also be the same size.
    Buffer 1: Contains data for the 1 KHz sine wave, 300 points, 2 sine wave cycles
    Buffer 2: Contains data for the 1.5 KHz sine wave, 300 points, 3 sine wave cycles
    You then interleave them as before. When the data is run through the ADC, they are outputting different sine waves even though the AO channels are updating at the same rate.

  • How can I connect the output of a force transducer unit(BNC cable) to the PCI-6036E DAQ card via the SCB-68 block connector?

    I m using the 404A force transducer unit by Aurora Scientific and i want to connect the (converted to Volt) output, which is a BNC cable, to the PCI-6036E DAQ card via the SCB-68 connector block, facing difficulties in choosing the correct input mode for my signal(couldn t clear this using the manual), setting the switches and which channel shall i use in the block connector in order to configure ot with LABVIEW

    Hi MSc Student,
    Connecting your transducer to the 6036E card via the SCB-68 connector block should be pretty straight forward. You have 2 choices of input mode, Referenced Single Ended (RSE) this is where you will connect the screen of the BNC cable to a ground connection for the DAQ card in the SCB-68 and the other to any analogue input channel . These are listed in the device pinouts in the help section of MAX, under the 68 pin devices section. The terminal block numbers correspond to the DAQ card's pin numbers. Another method, which avoids ground loop problems would be to use the Differential connection and connect the signal and ground connections of the BNC cable to a differential analogue input, these are listed in the 6036E manual and in th
    e MAX help section again. the disadvantage to using this method is 2 analogue input channels are used and you must use the lowest 8 analogue input channels for differential inputs.
    The switch settings that you need can be found in the manual for the SCB-68 in table 2-1, the manual can be found here : http://www.ni.com/pdf/manuals/320745b.pdf
    The switches are for power to extra signal conditioning and the cold junction compensation for thermocouples which in your case you do not need so set the switches to the positions in the first box ie Direct feedthrough, with temperature sensor disabled and accessory power disabled. The channel you use should not matter the only ting to remember will be that if you use differential mode measurement that you will be connecting the signals to AI(n) and AI(n+8) so differential input 0 is across the connectors for AI0 and AI(8). The channel numbers corespond to the analogue input number for the card.
    I hope this information helps,
    Chris M
    App
    lications Engineer, National Instruments

  • How to avoid dependance between output digital port with a PCI 1200 daq card?

    Hello,
    I don't manage to fix the state of a line on one port (PA0 for ex) without change the state of another line of another digital port (PB0 for ex)
    I use a PCI 1200 Daq card with Labview 5.0.1 (under Windows 98)
    How to configure a robust state (high logic level) on a line of a port??
    Does anybody have an idea on this problem?
    Thanks a lot in advance and happy new year to the community
    JF LAVEZARD

    jflab a écrit:
    Hello,
    I don't manage to fix the state of a line on one port (PA0 for ex) without change the state of another line of another digital port (PB0 for ex)
    I use a PCI 1200 Daq card with Labview 5.0.1 (under Windows 98)
    How to configure a robust state (high logic level) on a line of a port??
    Does anybody have an idea on this problem?
    Thanks a lot in advance and happy new year to the community
    JF LAVEZARD
    Hello,
    I've found the problem
    The PCI1200 has a chip 8255 for Digital I/O
    If I use the bad VI, it reconfigures the port and all the lines go in a low logic state
    so I'd to write only on the port or the line without reconfigure the port
    So the good VI in the palett is: Port Write and not Digital Port write!
    See attached file..
    Thanks
    Best Regards
    Attachments:
    port_dio.jpg ‏771 KB

  • How to generate a pulse waveform 90 deg phas shifted with respect to a pulse generated using a counter in PXI 6070E daq card ?

    Hi
    I ma using 6070E daq. I am generating a infinite pulse train using one of the counters. I want to generate another pulse train which should 90 degress phase shifted with respect to the previsously generated pulse. How to implement this using the counters in the DAQ card.

    Hi Gopal,
    1) yes the frequency generator is programmable. You have 2 timbebases (10MHz and 100kHz) and you can divide down by any integer between 1-16. Those are the only frequencies you can use.
    2) The way counters work is that you can apply a gate signal to the counter which will cutoff the output. Therefore, you can have a second counter generating a pulse train of an equivalent frequency to the frequency generator (fout) but you don't want it to start immediately. You want it to start only after a short delay (equivalent to a 90d phase). Therefore, you need to "gate" or prevent the output on this counter for that small delay period of time. The way you can do this is by using a second counter to create a delayed pulse. You would
    connect the output of that counter to the gate of your pulse train function. That way, during the delay period of the pulse, you won't be outputing your pulse train yet. When the pulse (high-time) of your pulse reaches the gate, then your pulse train will start generating its pulse train (which is consequently delayed by the amount of delay used in the single delayed pulse counter). Since you don't want your pulse to go back low, you will have to turn off or clear your pulse counter while it is high. That way the signal on the gate will remain high forever.
    Your better solution is to use a PCI-660x card to perform this action. You will have more counters which will give you a greater range of frequencies to choose from and you will have more accurate timing of the signals.
    Anyway, hope that clears things up. Have a good day.
    Ron

  • How does the PCI-6229 DAQ-card communicate with CB-68LP connector block?

    Hello!
    I want to do a very simple task which is to just turn on/off a LED. I am using LabVIEW 7.1 and I have a DAQ-card PCI-6229. The DAQ-card is then wired to a connector block CB-68LP.
    Now my problem is to figure out how the connector block communicates with the DAQ-card?
    In the file I attached there is a picture of connector block and the device pinouts from the DAQ-card. But how do I know which of pinouts triggers some connector on the connectorblock?
    Which are digital outputs on the DAQ-card?
    Where can I read about this?
    Attachments:
    daqANDconnectorblock.bmp ‏2437 KB

    Hello asc01001:
    The digital pins of the PCI-6229 are labelled as Px.y, where x is the port name while y is the channel name.  For example, pin52 of the NI 6229 is P0.0; which is also port 0, channel 0 of the digital I/O of the DAQ card.
    While "D GND", which are located at pin53, pin18, pin50, etc. are the negative terminal of all digital I/O of the DAQ cards.
    Please advice if this helps.

  • How to switch multiple relays using PCI 6601 DAQ card

    What is the specification of the digital output value given from the PCI 6601 DAQ card?How to develop LAB VIEW code to switch a relay?Can anybody please explain?

    Hi hasi,
    did you read the manual and the specs of the PCI6601? It says: "5V TTL/CMOS compatible"...
    You shouldn't expect to much current from a simple DO pin - probably it's not enough to drive your relay!
    Best regards,
    GerdW
    CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
    Kudos are welcome

  • How to arm channel 1 of a PCI 6133 DAQ card using labview?

    Hi,
    I am new to the Labview and I need some help.  I have a PCI 6133 multifunction DAQ card and I'm using Labview 8.2 to capture five channels waveform data.  I setup channel ai0 to be the trigger channel and I need to capture data from ai0, ai1, ai2, ai3, and ai4 when ai0 is trigger.
    Question:
    1) I am using DAQ assistant to configure my channels.  How can I arm the channel ai0?  I have an "execute button" and it should arm the scope when I click it.
    2) Is there trigger ready signal, so I can save all the channels data when channel ai0 is trigger?
    Can anyone provide some help?
    Thanks

    Hello wirte spreedsheet,
    Thanks for posting to Discussion Forum. It looks like you are using the
    PCI-6133 to acquire analog data from ai0:ai4. You want to use ai0 as
    the trigger for the other channels.
    Does your application need to be retriggerable?
    Are you doing continuous acquisition?
    Are you doing Analog start trigger or reference trigger?
    Take a look the following shipping examples, found in LabVIEW click
    Help>>Find Examples. On the browse tab, Hardware Input and
    Output>>DAQmx>>Analog Measurements>>Voltage:
    Cont Acq&Graph Voltage - Analog SW Trigger.vi
    >> This example demonstrates how to perform an analog software
    triggered acquisition. The example allows the user to specify the
    triggering condition and the number of pre-trigger samples to acquire.
    Cont Acq&Graph Voltage - Int Clk - Analog Start.vi
    >> This example demonstrates how to continuously acquire data
    (Waveform) using the DAQ device's internal clock and an analog slope
    start trigger.
     Take a look at these applications and let me know if you have any questions or comments.
    Have a good day.
     Regards,
      Sandra T.
    Applications Engineer | National Instruments

  • How can I control a stepper motor drive using a DAQ card?

    I need to control a simple CW/CCW stepper motor drive using a DAQ
    card.  I simply need to output a 5 volt signal and then a drop in
    the signal, and so on 200 times or steps for 1 revolution.  I have
    desiigned the basic program, but do not know how to output the
    appropriate signal.
    Cheers,
    Matt

    What DAQ card do you have? Ideally, one with a counter output to generate the steps, where you can control frequency. If you try to start the motor too fast (acceleration or abrupt application of fast pulses) it may stall out. Search in Help/Search for Examples for 'frequency' and 'pulse' for example of frequency generation. You can also use a digital output on the DAQ card to control direction.
    If DAQ card does not have a counter, you coul do a software timed loop to toggle a digital output to generate the pulse train. It may not be fast enough nor accurate for your application, do not know from info you have given
    ~~~~~~~~~~~~~~~~~~~~~~~~~~
    "It’s the questions that drive us.”
    ~~~~~~~~~~~~~~~~~~~~~~~~~~

  • How to send the spool output to the specific user during ALE distribution

    Hi All
    In ALE internal order Configuration done by BAPI Method SAVEREPLICA Business object BUS2075whenever user changed the internal order which is moved to the destination system because of change data setting in data element fields.
    I want to know how to send the spool output of the changed internal order to the specific user during ALE distribution.
    Please help me to reslove the above issue
    Thanks & Regards
    KRISHGUNA

    Solved by myself

  • How do I use two DAQ cards in one Labview code? Current I'm getting error " error 200558 occurred at DAQmx Create Channel.vi. One task cann't contain multiple independent devices". Can someone help me?

    The two DAQ cards are NI PCI-6070E & NI PCI-6052E. The Labview I'm using is labview 7 Express and the Window system is Window XP. I'm using NI SCXI-1000 chasis and SCXI-1102 & 1102B two modules plus a feedthrough SCXI-1180. 1102 is connected through SCXI-1349 cable to DAQ card 6052E while 1102B is connected through SCXI-1349 cable to DAQ card 6070E. SCXI-1180 is connected to 6070E through SCXI-1349 adaptor on the back of 1102B.

    Sarah, thank you for replying my question. It seems that I'm making progress everyday (smile). I'm able to run the test using both daq cards in my code now. But as I'm moving forward, I'm getting new questions too. How do I use one STOP button to control both tasks and how can I save data into one single file?
    I attached my code here hoping you can get the specifics on my application by looking at the code. Thanks very much!
    Thanks.
    Attachments:
    DAQmx_Task_Example_plus_voltage_2.vi ‏416 KB

  • How can I create software start and stop trigger in LabView using 6023E series DAQ card? I don't want to use the external trigger.

    I am using 6023E DAQ card to collect the signals, such as AE, Force, Torque from the machine. I want to collect only some part of signal for example between start triger and stop trigger. I'd like to know how I can creat those triggers in LabView from one of the channels that I am acquiring at the same time. I found one or two library file that is only for start trigger. I know that this is availabe in some of DIAdem functions. Please let me know if you have done some example for this requirement.

    If you are wanting to create a software trigger based on an analog input voltage in LabVIEW, there are several options. One suggestion would be to compare the voltage values from one input channel to a number within a loop. If the input voltage crosses that threshold (is greater than the number), have a case statement that will acquire data from the other channels. This would simulate a software start trigger in LabVIEW.

  • How can I make a timer that will record elapsed time up to 15 hours with a PCI-6503E DAQ card?

    I'm a beginner LabVIEW programmer, but need to take measurements of elapsed time from the start of data acquisition for up to 15 hours. I'm using a PCI-6503E card. Looking at examples on the web and LabVIEW, itself, I was only able to find a way to take time measurements with a DAQ card up to 167 s, unless two counters were tied together, but there are no instructions on how to do that. Could someone help me? Thanks.

    I suggest you to look in the Resouce Library: inside it there is plenty of useful examples.
    I found this VI with two cascaded timers in the Measurement hardware > Counter/Timer > Event/Time Measurement cathegory:
    http://zone.ni.com/devzone/devzoneweb.nsf/opendoc?​openagent&5293158F4EC950C4862568C1005F6CD9&cat=C70​29C9ACBD3DF7386256786000F8EE6
    Hope this helps.
    Roberto
    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?

Maybe you are looking for

  • How to Install Windows 8.1 Pro with Bootcamp

    I have an early 2011 MBP 15" that's running Mavericks, and I just got Windows 8.1 Pro with an install disc. I'd like to install W8 with Bootcamp, but I can't seem to find any guides on doing this, as most people have retina MBPs which have no optical

  • Update to Nokia Belle Problem!!

    Guys pls help me with this, Nokia Belle Update is available for my phone C6-01 I tried to install it from Nokia suite but i get an error saying cannection to phone was lost how many times vever i try to install it from there can u guys tell what the

  • Reminders not showing in ical 7.0

    My reminders are not showing up in iCal 7.0 on my new Macbook Air, and in the View header nav, Reminders are not in the list as an option to display.  I can't access my reminders.  Please help.  Thanks.

  • Problem update Adobe Premiere Pro CC(2014)

    Hello, when I try to update Adobe Premiere Pro CC 2014 the system give me this error "Unable to extract the downloaded files. To download please selected try again. (U44M1L210) Nicolò

  • Filter option in Matching Fields

    Hi, When right click on Matching fields, there is Filter in import Manager. Can anyone let me know, how that Filter related to Matching Fields records please? Thanks. Regards, Lahari