DAQmx Task Recovery
Due to failed hard drive I need to migrate un-exported DAQmx tasks from one computer to another. Due to the same issue with hard drive I cannot open DAQmx and export these tasks - windows based system...
View Articleideal adc
Hi all, I'm trying to find some ideal ADC to run the simulation. I want to add jitter to the sample signal. However, the analog to digital.vi cannot use sample signal. It's helpful to tell me...
View ArticleNetwork Stream Max Buffer Size
Hello, I recall an AE on here once mentioning that network streams can exhibit problems if you set a buffer size greater than 9MB, but I haven't been able to find any concrete explanation of this. The...
View ArticleMultiple loops in event structure
Hello, I am trying to write a program that uses data from an overhead camera to drive a differentially steered robot around a track. I'm new to LabVIEW and I have a question with getting the event...
View ArticleXY graph reset
Hi, I have a problem with my and xy graph, the program recieve the data from excel files and it does several operations after that, I send the results to an xy graph, now I am trying to reset the...
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Determine the current page of pdf
In my VI I load a pdf into an activeX container. I would like to be able to progammatically determine which page is currently being viewed. I have looked throught the various property classes and...
View ArticleHow to hide an array in the block diagram
Hello all, I'm working on a LV VI that will send out a voltage from a laptop to a circuit (with an op amp), amplify the voltage, then send it back into the laptop. There is a numeric control which the...
View ArticleIndependent Sample and log rates
I would like to log data at 0.5 second intervals while the daq assistant acquires data at 1KHz, I tried using the write to measurement file express vi but couldn't separate the sampling and logging...
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reading soundcard line in port
Hi I want to read data from Line In port of my PC's soundcard, but I don't know how?I have read data from Mic In port of the soundcard by the "Sound Input VIs".but when I disconnect the input signal...
View ArticleBuilding an application(Exe)
Hey guys i am trying to build an application of my VI's in labview 2012 but there is no option of application(exe) when i right click build specification even though i have saved the project. Kindly...
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Serial Write and Read
Hello everybody,I have a problem with serial comunication - when I put '8', I receive some unusual characters like 'Ć', and then '8'. On the end - error. I did something wrong?
View ArticleReading multiple soundcards
Hi every body I want to read three different soundcards simultaneously by LabVIEW. Is it possible and with which VI?I tried to use three sound configuration input VI and open three soundcards VI...
View ArticleDefault sampling rate
Hi alli have an ni pci 6239 card. i'am using this device to generate waveform with sample timing set to "sample clock" and sample mode set to "continous"if i do not specify the sampling rate...
View Articlefpga
I need help with a FPGA problem. I want to look at 48 DIO's and everytime there is a change I want to record the I/O state and time. This can happen over a period of 10 seconds or so. the duration...
View ArticleFluke 1120A
Has anyone had success using NI GPIB cards or NI GPIB-USB to communicate with a Fluke 1120A IEEE-488 translator. I am using this Fluke 1120A to retrieve the data from a Fluke 8921A True RMS voltmeter....
View ArticleChange 8-bit binary image back to 8-bit grayscale
Can some one help me please in NI vision how to convert the image back to grayscale after I did my thresholding by using 'IMAQ Local threshold' from a 8-bit grayscale to a binary image but the problem...
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VISA resource not listing options
I have a .VI that works fine on my windows 7 computer. When I move the arduino to my windows 8 computer, the VISA resource for the Arduino init icon does not recognize com ports. Only option is...
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simple state machine Where to begin?
Hello Got a question that is simple for the experienced people here I guess. But don't know where to start..... Here is what I want to try to do: I have got a lot of inputs, to keep the question simple...
View ArticleChannel OFF/ON program
Hi I'm building a program which send a command to microcontroller, for instance: send number '1' --> channel ADC 1 OFF. And there is my problem: I have 4 channels, which measure ADC voltage on...
View ArticleFPGA resources
When I look at my compilation report for my FPGA code on a PXI-7833R. I see teh parameters below. They are all listed individually. However, I thougth a slice consists of register and LUT, isn't it?...
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