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cannot read subpalette text

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After installing LabVIEW 2014 Device driver the Measurement I/O --> Measurement and Automation (I guess) subpalette text is a mess. Part is unreadable, part is french and part is german. I remember seeing a post about a similar issue but I can't find it. How can I repair this?

 

EDIT: My LabVIEW installation is in english.

 

Ben64

 

ScreenShot002.pngScreenShot001.png ScreenShot003.png


Strain Measurements with NI 9219

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Hello to all, 

i just join this forum and i would need bit of advise on strain measurement using NI 9219 with Lab view.

i have followed all the procedure and settings to configure a strain virtual channel in NI DAQ mx global virtual channel.

i need few clarifications on the strain gauge measurements:

1.if i am using quarter bridge 1 configuration do i need completion resistors for NI 9219?

2.i have ordered strain gauges but can i mimic the calculations of strain gauge with labview by using a variable resistor in place of active gauges?like what i understand is strain gauges change the resistances when force is applied.based on that concept if i use variable resistor on one leg of wheatstone bridge and plot the data? all i want is to play around with lab view till i get the real strain gauges.(will take a week to get deleivered)

3.by setting the Vex to internal i think i wont need to apply any voltage to the terminals of bridge as shown in strain setup window.i would just need to connect the to ends of wheat stone bridge to pin number 3 and 5 in NI 9129.please comment on that..

 

i really thank and appreciate all of you for taking time out and reading/commneting on my post.

 

Regards,

Ali

How can I insert a non breaking hyphen into a string

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Hello,

 

  How can I insert a non breaking hypen into a string? Here are the values of a non breaking hyphen

 

 

HTML Entity (decimal)‑
HTML Entity (hex)‑
How to type in Microsoft WindowsAlt +2011
UTF-8 (hex)0xE2 0x80 0x91 (e28091)
UTF-8 (binary)11100010:10000000:10010001
UTF-16 (hex)0x2011 (2011)
UTF-16 (decimal)8,209
UTF-32 (hex)0x00002011 (2011)
UTF-32 (decimal)8,209
C/C++/Java source code"\u2011"
Python source codeu"\u2011"

Conversion from PSD to SPL

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Hello everyone,

 

 I have created a VI which converts PSD value to SPL. Formula used to convert PSD to SPL is 

 

SPL=10log(PSD/P^2) where P=2*10^-5

 

Problems facing:

1. Outer while loop is not terminating even if the condition is true? please refer the attachment( it has comments in block diagram to understand my VI, probe window)

2. Is my VI correct?

 

Please share your thoughts. Let me know if you need anymore explaination

 

Thanks in advance 

 

Reading TDMS file data slows my Application

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Created a  Data Reader Application in LabVIEW   for Analysis the Logged Data.

 

My logging application have 20 Channels and log the data in TDMS file,once data are logged ,I use my reader application application to read the data from tdms file.

 

But once the Reader Application read the data ,it slows my application and CPU usage almost reaches 80 to 100% .(Justed tried by opening the tdms file in reader application which is having 50000 smaples from all channels and size of it is around 27MB,then its slows my application )

 

Also I my appliaction gets slow and displays the data very slowly.

 

Please suggest ways of using TDMS file to make application works in normal way without affecting its performance and memory.

multisim

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I am not sure if Im posting to the correct board. This is my first time here.

 

 

I downloaded N.I. Multisim on my Windows 8 PC.  I need help getting it to function properly ( or at all for that matter ).  I can not figure it out.

 

 

 

 

 

thank you ,

LMDetroit

How to determine what card is in what slot of a PXIe-1073 unit programmable

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How can i programmable determine what card is in what slot of a PXIe-1073 unit I have a PXI-4063 and a PXI-2503 in a 1073 chassis. I use the DAQmx Device Product Type to to find the 2503 matrix card but it woun't return the 4065 product type.

How can I build a LabView application that uses the 2012 runtime, on a development system with LabView 2013 or 2014 installed?

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I need to build a LabView application .exe to run with the 2012 Runtime, for legacy support. I currently have LabView 2013 installed on my development system, and have 2014 available. How can I build an application that uses the 2012 runtime on this development system? Do I have to downgrade to 2012? Thank you.

Timed loop frequency issues for myRIO-1900

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Hello,

 

Currently I am working with a myRIO-1900 and I am trying to write a program to log data. I want to sample the analog input data at 256*60=15360 Hz, which is around 65 us.

To do so I tried to build a real-time application and run it at the myRIO. However, it seems I am not able to run a real-time application at that frequency. In the attached program(in which only the execution time is saved) I run my code for 77000 iterations which I would expect to take around 5 seconds (77000*65us) it takes 15seconds however. I tried different types of timing loops with no succes.

 

Can someone please explain me what I am doing wrong and if it possible to run a real-time application at that frequency in the first place?

 

Thank you very much!

Maurice

 

levenberg

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I have a data set with a non-diagonal covariance matrix [s2].  The chi-square is then (y-yfit)^T[s2]^{-1}(y-yfit), where [s2]^{-1} is the weighting matrix--the inverse of the covariance matrix--and (y-yfit) is a column vector of fit residuals and (y-yfit)^T is the corresponding row vector.  As far as I know, solving for the parameters of yfit that minimize this chi-square should be pretty straightforward for this case.  One just has to allow for a weighting matrix instaed of a vector of weights and then properly use this matrix in the Levingberg-Marquardt algorithm.  Has anyone done a fit of this kind and have any suggestions?

Windows 8 High Res Scaling problems

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I have a windows laptop with high resolution on a 15" screen: 3200x1800.

Native resolution is close to impossible to use wih labview.

 

Windows has a scaling feature, and I have it set to 150%, which is excellent for me.

However, SOME projects trigger LV to go native.

That is, I will launch LV 2011 or 2013 and load the PROJ file, and all will be OK.  But when I open certain VIs, all of LV suddenly goes to native resolution, which is unusable.

 

Does anyone have any idea why, or what causes this?  Blank/New VIs don't cause the problem, some of the project VIs don't cause it.  It doesn't happen with every project I have.

to measure current in DAQ should we use rms value or DC avereage value

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to measure current in DAQ should we use rms value or DC avereage value

High Sample Rate (~1MS/s) Timing Considerations

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Hi all,

My experience with Labview is pretty limited, and so far I've mostly been editing and debugging code that has been handed down to me. I've been using USB DAQ cards to sample at around 10 Samples/second, and haven't cared too much about precise timing. I'm looking at a new application for NI software and hardware, and have identified the USB-6343 card as the one to use (500kS/s input, 900kS/s output). The plan is to generate an accurate output signal (accurate in timing and amplitude) which is slightly dependand on the input signal. I do not plan to write log data to a file at this rate, just input, process, and output.

 

Is it relatively straight forward to sample and output analog signals at these high sample rates? Currently I just use timed loops with millisecond precision, but this would require microsecond precision timing. Is that something that is pretty standard to achieve, or are these sampling rates achieved a completely different way? Can anyone provide links to point me in the right dirrection?

 

I'm sorry if this question has already been asked, but hopefully it's generic enough to not be a burden. This is a project I'm taking up in my spare time, so I'm just beggining in plan things out, which includes figuring out how difficult the software side of things is going to be.

 

Thanks.

 

-A

NI-RIO Incompatable Bitfile

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I opened a new LabVIEw 2014 project and added an NI 9068 chassis in FPGA mode. When discovering C-Series modules, i get the following error:

 

NI-RIO:  The bitfile you are trying to use is incompatible with the version of NI-RIO installed on the target and/or host. Update the version of NI-RIO on the target and/or host to the same version (or later) used to compile the bitfile. Alternatively, recompile the bitfile with the same version of NI-RIO that is currently installed on the target and/or host.

 

I have verified that the chassis has NI-RIO 14.0.1 installed and my PC has NI-RIO 14.0.1 installed. I uninstalled all the software on the NI 9068, and reinstalled it with the current software installed on my PC with no luck. Also, i have attaced a screenshot of the installed software on my PC and on the cRIO. What am I missing?

FPGA: "The bitfile signature does not match." No Changes Made

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Hello,

 

I have a project involving a cRIO9082 and its FPGA Target. My problem is that I keep having to recompile the FPGA build even when I haven't changed anything. Is there a setting that I'm missing here?

 

Thank you,


Problems in getting signals from Hall Sensor through NI-9401

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Dear all,

 

I am facing problems when I am trying to connect a Hall sensor (12 VDC) to NI 9401. I am using 14(DIO) and 1(COM) pins, and connecting my Hall sensor to a DC source. I am trying to get the signals by passing the magnet, to alter the magnetic field yielding no result. What do you guys think could be the issue?

 

Best regards,

LaxG

ni goop 32bit installs in 64bit labview

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Hello,

 

I have both LabVIEW 2014 f1 versions installed on same machine (x32 and x64). I have downloaded NI GOOP v.4 which has both installations (x32 and x64). I expected that each would install itself in its "native" LV environment. However, the 32bit version installed in the 64bit LV (..\Program Files\.. insetyad of ..\Program FIoles (x86)).

 

Is this a bug? It seems immpossible to install NI GOOP in 64bit WinOS?

How can I install the 32bit version in the corresponding (x86) folder?

 

Thanks in advance,

compare columns min and max

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Untitled.png

 

 

hi, 

i want to compare colum 1,2,5

if max - min > 1 = fail

 

how would i go about doing do?

i am thinking i should just delete all columns with 0s but i am having a difficult time deleting them.

 

Untitled.png

 

can someone guide me how to do it.

thank you

 

 

Untitled.png

BIT ERROR RATE

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I am interested in calculatig BER of USRP using LabView. Is there any example VI available for BER Caiculation. ?

 

Thanks

 

JK

 

Nonlinear least squares fitting with correlated data

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I have a general question on nonlinear least squares fitting using the Levenberg Marquardt algorithm. I would like to be able to handle data sets that are correlated—have a non-diagonal covariance matrix. Thus the weighting matrix would also be nondiagonal, but the vi in labview only allows the weights to be a vector of 1/sigma^2 (i.e., no correlation).  Has anyone modified the necessary vis to handle a weighting matrix rather than a vector?  If not, I could try it myself, but how do I copy the vis to make the changes?  The Save As is always grayed out.

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