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'Procedure Entry Point' error
I have a Matlab compiled code with the C++ wrapper. Before Labview can use it, it has to initialize the Matlab Runtime. So I have a VI called 'Matlab Init' to do this, but when I put the init VI into...
View ArticleWhat is going on "under the hood" of the 'Wait Until Next ms Multiple' vi?
Hi, This question is really for the developers of LabVIEW, and I don't know if they are willing to divulge what might be considered "trade secrets". Anyway, I just thought there's no harm in asking. I...
View ArticleComo puedo hacer consultas simultaneas en sql 2005
Necesito acceder a una base de datos SQL haciendo 2 Query en forma simultanea...siempre espera qa que termine la primera consulta antes de empezar la segunda, aunque estan alambradas en paralelo. Atte...
View ArticleUse DAQ Assistant to Sample Foot Pedal Input
Hi all, I have a Linemaster T-91-SC36 foot pedal that I want to interface with an ELVIS II. I'm using the foot pedal to mark an observation and then I will compare the timing of the observation to the...
View ArticleIs it possible to send TTL triggers (different numbers for different...
I am sending TTL triggers from Experiment Builder (EB) to Lab View (LV). I am sending TTL 1 for condition 1, TTL 2 for condtion 2, etc. This is no problem from EB side but i cant see this info in the...
View ArticleVI to leave fields blank rather then with values
Hello, What I am trying to do is modify the code from an exercise to suit my needs. I am having It write to an access database which It does in stock example form. But what I wanted to do was add...
View ArticleWrite to new file inside Producer/Consumer
Hi I'm trying to write a new file every time a boolean true occurs, but I don't know how to do it.I found the example from Cont Acq Producer Consumer to File.vi, and I cant figure how to change the...
View ArticlePutting single data into 1D array
Measuring muon lifetime I get bytes representing the time elapsed between the impact of the muon and the signal of the electron from the decaying muon.The express.vi histogram does not give me the...
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FXP division by 2 fails
I simply want to divide an FXP number by 2 in my FPGA target but I get an incorrect result. For example when the input is 1.413788, out comes 0.206894 after one iteration. The code looks like...
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Problems reading Comment from LVM
Hi,I'd like to write some signals to a file, where I mark each phase in the execution with a tag (the user can select what tag to apply during the execution) . I am trying to use the feature of...
View ArticleIssue with "Write to spreadsheet File.vi" in Labview 8.2
Hi, I wrote an vi for reducing noise from my signal source (voltage). When I wrote to spreadsheet file, it only saved 10 rows of data. How can I continue to record the signal until it I stop the vi....
View ArticleWhy can't I get output values if I don't have any error messages?
New to labschool, taking an electronics in graduate school. Set up this circuit. The question read: (b) Write a VI that calculates the voltage drop across R2 for all of the following:R2=0, 50, 100,...
View Articlepasar un programa hecho en labview a un dsPic
hola...tengo un programa de identificador de rostro en labview, y quiero pasarlo a un dsPic, para instalarlo a un robot para que reconozca personas sin necesidad de una interfaz con una computadora si...
View ArticleSkipping a step in while loop when boolean is switched
Hey guys, I have a program that controls a ventilator which pumps in gas at a certain rate. This whole process is executed in a while loop. When we switch gases by a toggle that's on the front panel,...
View ArticleUpdating bar char color with changing temperature values
hello everyone. I am actually reading a temperature sensor and plotting the data as a bar chart. I am acquiring the data every second and present them in a bar chart. the challenge is to show...
View ArticleLoop control
I am having issues trying to make my program Start and Stop accordingly. What I want to do is to Start the loop when a button is pressed and Stop it either by a Button or by an Event. The events could...
View ArticleLabview development using Linux
Labview development using Linux - are the following functions supported: visa (USB comport communication) ? Modbus library? Math analysis? Application builder? Are there tools to covert labview...
View ArticlecRIO Flash Drive Wear - 24/7 TDMS Streaming
Do I need to worry about wearing out the cRIO's flash drive when continuously writing 16 channels of 2000 S/s data using the TDMS Write VI? Should I be enabling the TDMS buffer? I want to make sure I...
View ArticleRunning FPGA and DAQmx on the same VI
I am using three cards on my computer: 2 PCIe-7841R and one PCIe-6361 and i am trying to control digital outputs, along with analog inputs and outputs on all cards from one VI. The controls for the R...
View ArticleSynchronizing 2 sine waves
I'm new to Labview and NI-FGEN so things are taking a bit longer than i think they should, the problem is im trying to synchronize sine waves from 2 PXI 5421 cards. what im fundamentally trying to do...
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