How to log data in different rates in a single VI?
Hi, i tried to acquire 2 channel of voltage measurement at 10KHz and then analyze the data, finally record the data at both 1KHz and 1Hz. What i have done is that use producer/consumer loop to achieve...
View ArticleTDMS file error occurs after several hours
I have a compiled LabVIEW 2010 SP1 executable running on a Windows 7 PXI computer that is occasionally producing the following error message:"LabVIEW: LabVIEW could not load the TDMS file component.The...
View Articlehow to plot acquired signal against time with fixed time length using XY graph?
Hi, My objective is to plot the acquired signal against time with fixed time length dynamically. Generally speaking, it is like plotting the signal waveform against time in a graph, but only keep the...
View ArticlePost processing the received serial data
Hello,I want to process the data received by comport in labview where the transmitter device sends 22 bytes of data in this format 0x01 0x02 <18 bytes of information data with LSB first> 0x03...
View ArticleMeasuring Current with USB 6009
Helly everyone, I've been attempting to measure the current across a circuit in LabVIEW with the usb 6009, but the DAQmx express vi seems to be giving me some trouble. When I configure the channel to...
View ArticleIncrementing a Value at the end of a Run
I have a code which programmatically increments a Numerical indicator by 1. I have this code in a case structure that is outside a While Loop that contains my other code. However, I want the...
View ArticleHow can I programmatically launch LabVIEW's "Compare VIs..." function on two...
I have many pairs of VIs to compare, and I have their paths ready in a text file. I have to go through LabVIEW's "Tools >> Compare >> Compare..." menu each time to compare a pair, then...
View ArticleN x N square help
I am looking for ideas on how to impliment the following: I am redesigning a program that will take data from Labview and place this data into an comma-delimited text file on another file server. One...
View ArticleStopping Multiple Loops Simultaneously
Simple question. So I have three loops executing simultaneously for a specific duration. The very bottom one writes a digital trigger and subsequently controls the duration of the trial that I'm...
View ArticleLCD Display Labview
Hi Forum, first thanks a lot for all your help! I am using Labview for power monitoring on a mini pc running windows 7, i wanted to display the different states on a HD44780 LCD mabye also controlling...
View ArticleHow do I store data being continuously aquired to a spreadsheet or datasheet...
I am using a camera to aquire an image and then using the light intensities of the pixels to calculate the center of the image and see how it moves as i adjust the light source. The final numbers I get...
View ArticleHow can you find out if another VI running on the same computer and how can...
Suppose that several VIs running simultaneously on the same computer. How can I find out the names of the running VIs, from another VI?If the already running VIs are clones of the same basic VI, open...
View Article2D bar code scan with extra characters
When I scan a 2D bar code and display the results in Notepad, the text is correct. When I scan the same 2D bar code into a string control using LabVIEW, I get extra characters. Why does this happen?...
View Articlefpga
ma project is to read values from a lcd display...i was not able to set an roi ... cn any help me out...i hav attached my codes
View Articlereading values from lcd using vision
ma project is to read values from a lcd display...i was not able to set an roi ... cn any help me out...i hav attached my codes
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Resetting Vi
I see other threads that deal with resetting VI problems but none that appear to have the answer that sorts my specific problem. I have a program that started with the read/write basic serial example....
View ArticleAcquiring multiple DMMs
Dear LabView users,I am really new to labview and I need to implement a vi where I have to acquire data from 10 DMMs (NI PXI 4071). I do not have any special requirement in term of syncronization, I...
View ArticleHTML report graph is cut, how I set margins?.
Hello, I trying to get a report with diferent graphs. But I got the graph cut. It seems I could set lower margin th get the whole graph printed. Is it possible to fit?. Another thing, Could I remove...
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Error with data sent with VISA communication
Hello,I am trying communicate with a microcontroller that needs this data 0x01 0x2A 0xFF 0xFF 0xFF 0xFF 0xFF 0x0D to start transmitting data back.So, I thought to check the data to be transmitted to...
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