Update graph data from subVI (while loop) that is also updated from outside...
hello, My graph gets updated just fine when it is not inside the while loop, infact inside the while loop is the same subvi that updates the graph outside the while. In the subvi that does not update...
View ArticleData Collection Rate Is Slow
Hello, Im using a cDAQ and ni 9213 module to take small voltage measurements. I have the rate set to the maximum and i should be aquiring data at 75S/s, but i am only aquiring data at around 2S/s. My...
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VISA problems with upgrade from LV 2010 to 2012
Hello, I recently upgraded from LV 2010 to LV 2012 and am having troubles with my VISA Write calls. In 2010 my VISA Writes had no problems. I've attached a screen shot that shows the error message when...
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Error 5017
Hi guys! Im new to LabVIEW and currently experimenting on a program using NI 6509 DIO. The problem is when i open my application, an error pops out stating Error 5017. Can anyone enlighten me on this...
View Articledeteccion de picos
Hola buenas noches colegas, soy estudiante y estoy llevando a cabo un proyecto con el que adquiero una señal analoga con la DAQ de NI, en dicha señal tengo que detectar los picos que sobrepasen un...
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DC motor signal
Hello all experts, Now I have a project about automotive,I want to check DC motor signal hase_U,phase_V,phase_W as attached picture. However,I don't know how many test items need to be performed....
View Articlecollecting and clearing elemnets after dimension reaches to [x values] in an...
Hi all, I need some help, here what I am trying to do is to take 3 channels from acquisition device (BIOSEMI) and collecting 8 elements each time in 3 different array until it reach to 256 elements....
View ArticleUnable to Install Real-Time module on MAX for Compact RIO NI-9082
Hi everyone, I realise that this question has been posted already on the forum, (http://forums.ni.com/t5/LabVIEW/Compact-RIO-NI-9082-Configuration-in-MAX-Unable-to-Save/td-p/2516116). Indeed I am...
View ArticleMulti channel FFT in FPGA
Hi, I want to apply 2048 point FFT parallely on 8 AI channels which are sampled at 200KS/s. (Outside SCTL) I was trying this by calling 8 FFT functions paralley (each configured for 2048 block size)....
View ArticleQuestion about various types of shared variables
Hi, I am trying to use shared variables to transfer data between several VIs. But I don't understand the types. Like, what is the difference between Single-process and Network-publish shared variables?...
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optimal structure?
optimal structure. I am structuring my project with the following loops and case structures. I am following a good method? are good practices?
View Articlehow to make the exchange of data between 2 while loop in real time
helloI have 2 while loop the 1st while loop includes the data acquisition program the 2nd while loop includes the control program...
View Article2 com port parallely
I am working on a application in which I may need to read value from one com port and need to write the value to other com port and vice versa. During testing I will be doing this lots of time....It...
View Articlereading a value from spread sheet
Hi, Can you please suggest how to select a particular spreadsheet file out of three files and read values from the selected spreadsheet file. Thanks in advance
View Articlelabview
Hi, How to implement a vi inorder to read from a file . Only the specified part should be read and not the entire file Thanks in advance
View Articlehow create work sheet at defined index inside workbook of Excel in labview
hi all, how create work sheet at defined index inside workbook of Excel in labview. Excel programming how to add worksheet at any index( 0, 1,....n) inside workbook using labview. Thanks &...
View ArticleRequirements Gateway - Front Panel Objects
Hi, I am just about to start using the requirements gateway and I have a couple of questions to help me get going... 1 - If I create a vi on a machine without RG installed and then move it to a machine...
View ArticleHow do you overwrite values in a ring control?
Hello,I have a Ring Control (Text Values) in Labview 2009 and it is programatically populated with 20 items. The end user either selects from the items in the list or populates it with a new item based...
View Articleopening large tdms files in excel takes forever, can anything be done?
After recording some daq channels for 4 hours my file is 120mb large, with about 20columns of data and 150k rows. Opening this in excel takes at least 5min, several not responding screen fades, and...
View ArticleXControls vs LVOOP
I've been working on learning LVOOP for a bit now. Today, I decided to start playing with XControls. I'm not sure I really see a large functional difference? Both are a special data type, carried...
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