i used matlab to plot a 3d plot and change the length of scale, but i cannot find similar method on labiew.
matlab test
using DatAspectRatio to change grid length
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How to set data aspect ratio of 3d graph?
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about Labview and GPIB
It is a GPIB-USB converter, and connected to a power meter. under 'VISA resource name', there is no port for GPIB.
I updated the version of NI-488 and NI-VISA to the latest version. But the problem didn't change.
Is this a hardware issue or didn't I forget to configure something?
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can i use multyfunctions in one mathscript object?
Hello,
I have a matlab code with some subfunction. I want use matscript of labview to convert matlab to labview. is it possible?
Best regards
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I have normalised some physiological waveforms on the Y axis (easy) but how do I normalise on the Y axis?
I have normalised some physiological waveforms on the Y axis (easy) but how do I normalise on the Y axis? The waveforms vary between a length of 200 to 500 datapoints.
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error 1172 NET Stereoscopic
Hello everyone.
For several days, I can not solve the problem. Continually shows an error 1172.
I want to run the program through stereoscopic net. http://www.3dtv.at/Downloads/Index_en.aspx
Here is my program.
Tell me, please, how it can be solved?
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not able to install device drivers
hi
I am trying to install LabVIEW 2012 on my machine(Using the CDs available f rom NI).. So far it has got installed correctly(Cd1 and Cd2). I want to now install device drivers.
But when I am trying to install this device drivers (through CD 3)it is giving me msg "Specified folder does not contain the correct volume".
I have not installed any device drivers before on the machine.
Only the XNEt drivers I have installed seperately. But after uninstalling XNET drivers also , I am not able to install any device drivers.
What could be the reason for this?
Do I need to uninstall complete LV and install it again?
I am installing it on windows 7 32 bit system
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Programmatically Open a Remote Front Panel with Panel Open Method
Hi,
I am trying to open the front panel of the VI on my cRIO-9024 through a remote computer. Currently, I am able to run the VI with no problems with the RUN VI method; however, when I try to open the front panel, I receive "Error 1043 - This property or method is not supported in this version of LabVIEW" or the Front Panel is simply not visible. My cRIO is configured to allow TCP/IP protocol, The VI is visible, and I have made my project into a source distribution on my cRIO.
Any help or suggestions regarding this problem would be great. I am very new to LabVIEW.
I have attached a screenshot of my block diagram and project.
Thanks,
Jake
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Intermittent data acquisition using FIFO on LabVIEW FPGA
Hello,
I am working on a project where I need to acquire data using FIFOs. I can get the FIFOs to acquire data continuously, but I only need to get data when certain conditions are met (e.g. while one of the output signals remains within a certain value) . Is there a way to acquire data using FIFO intermittently?
Thanks for the reply in advance,
Shin
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What is causing crash when using Write to Measurement file VI?
I am using the express VI, Write to Measurement on a PXI8106. When I run the application without writing to a TDMS file, the application will run for days. If I write TDMS files, the application periodically crashes every few hours. I have read that with the PXI's fat32 file system that the file sizes should be limited to multiples of 4096 bytes. I have also heard that writing to the root directory of the PXI, will cause problems- files should be written to a sub-directory. I have also verified that disk space is not an issue. The problem has occurred with as much as 30G of space. I need to find out what is causing the problem. Please advise. The application is a power measurement application using 4461 DAQ card. Also - no error messages are displayed, the running VI just stops.
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Obtain named queue creates another queue
Hi all.
This is a cross post from the Actor Framework section. It's not specifically AF related so I thought I'd post it here to get some more opinions.
I'm using the Extensible Session Framework to manage access to my application's config file. At the core of this framework is a queue. When I start up the app, I create a named queue. Each actor that launches after that needs to obtain a reference to that queue. Problem is, when I try to obtain the queue the second time it's instead creating a new queue with a new refnum. This of course breaks everything. The attached execution trace screenshots show the named queue being created twice.
Any idea what could be causing this behavior?
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TCP IP multi client connection is not working properly
My Program is a client server software communication where the server collector data from a cDaq and sends data to the client then the client sends command to the server to execute. The problem I encountered is when I sedn a command to the server, It shows that the server receives it but it doesnt execute it properly. Please take it a look, and see where I went wrong. I have been stuck on this for a while. I will add the more subvis after this post
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LabView RT FTP file size limit
I have created a few very large AVI video clips on my PXIe-8135RT (LabView RT 2014). When i try to download these from the controller's drive to a host laptop (Windows 7) with FileZilla, the transfer stops at 1GB (The file size is actually 10GB).
What's going on? The file appears to be created correctly and I can even use AVI2 Open and AVI2 Get Info to see that the video file contains the frames I stored. Reading up about LVRT, there is nothing but older information which claim the file size limit is 4GB, yet the file was created at 10GB using the AVI2 VIs.
Thanks,
Robert
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make bold in excel rows-columns
i have this configuration
i am using a library by Chembo, "I uploaded some code and example here: https://decibel.ni.com/content/docs/DOC-39826"
can someone help tells me how to make my excel sheet from
to
i cant seems to get the rows/colums formatted right.
thanks in advance
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Dll function calls from VB6 to Labview do not work.
HI,
We are transferring our production test systems from VB6 to Labview, and we are using "CAN-AC2-PCI" cards. When call functions of dll "canacpci.dll", UUT does not response at all, and Labview program does not report any error either. Attached are the user manual and my labview codes.
I guess the DeviceNe_init.vi works because if run it twice, second runing will report error. To correct the error, the card has to be closed first..
I close the card first, then initialize it. After then send the data. But I can not see any communication by DeviceNet Analyzer when sending data.
All function parameters are copied from existing VB6 program. The VB6 program works fine.
Please help me out,
Thanks,
Xiang Zhan
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set PHD 2000 pump infuse rate to zero
I wrote a small LabVIEW program to control the infuse rate of PHD 2000 pump. It works fine except when I change infuse rate to 0, the pump is still running at 0.01 ul/min. I was wondering if the pump treats '0' flow rate in another particular way or it is the format problem.
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initialize n dimentional array
I want to program a UI that can accept the number of dimensions as input and create an n-dimensional array as output. Anyone can help?
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USRP connection with LAbVIEW
I am working on NI USRP2 connection with LabVIEW 2014. I have sucessfully done configuration but at " NI measurement and Automation explorer ", I am not getting NI USRP device.
Kindly do the needful .
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Cluster help
Hi,
Is there a way to take a cluster of 6 control and unbundle it then take those components and bundle 3 controls together to form 2 clusters of 3 indicators? In my current VI i have it but i have to resize the cluster to "hide" the 3 elements i don't want. Is there a more legit way to do it?
Thanks!
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Did the unflatten from string vi change from V6 to V8?
I wrote an app in LV6 that flattened a cluster of two 2d arrays and a waveform to a string, then wrote the string to a file.
Then I would retreive the string from the file and unflatten it back to two 2d arrays and a waveform.
I've written a new app in LV2010 using the same file read and unflatten code, but get an error 116 when trying to unflatten the string from files created with the LV6 code.
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Calling LabVIEW activex application from Matlab
Hi All,
I am having trouble calling a vi and passing parameters to it using ActiveX calls.
I tried 2 methods to call the vi using ActiveX but none of them works. I have described the 2 methods below.
Method 1:
sc = actxserver('LabVIEW.Application');
glob = invoke(sc,'GetVIReference','C:\Program VIs\ControlSC.vi');
SetControlValue(glob,'Command','open')
glob.Run(0);
After running the above code I get the an error
"Source: LabVIEW
Description: LabVIEW: Cannot load front panel."
Method 2:
sc = actxserver('LabVIEW.Application');
glob = invoke(sc,'GetVIReference','C:\Program VIs\ControlSC.vi');
paramNames={'Command'}
paramValues = {'open'}
glob.Call(paramNames, paramValues)
After running the above code I get the an error
"No method 'Call' with matching signature found for class"
Does anyone have any idea how to fix these errors?
Thanks,
Ritesh
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