Trying to trace inputs to physical modules
Hello all, I recently was assigned to a project that had some LabVIEW code already set up, along with the physical system the code is meant to be controlling. The system uses 3 NI cards, NI 9221, NI...
View ArticleHow would I be able to run two constantly updating graphs independently,...
I want to be able to start the VI, then be able to start and stop each "video" graph independently, after the VI is initialized. Right now, I just have two while loops run when I start the VI and a...
View ArticleData is distorted between saving and loading
Hello, I am having an issue saving and loading data back into my VI. My software allows the user to collect data from a DAQ that is then displayed on a graph for them to see. They can save that data,...
View ArticleHow do you build a 3d array and then average back to a 2d array?
I have run into a snag with my code and don't know where to go .. I am taking measurements that are being saved once to a 2d array once every 5 minutes. The data collection is going to be over the...
View ArticleAutomated FPGA builds - "Waiting" state versus "Complete" state
I have written a VI (LV2012) that does automatic building of FPGA code, using ~\vi.lib\rvi\CDR\niFpgaBuild_GenerateCode.vi followed by niFpgaBuild_Compile.vi. Both have "wait until done" = T. This...
View ArticleEXE Won't Build
But this time its different because I can reproduce it and demonstrate it. So I have a large project with several libraries and classes. I've been updating code and in doing so added a new library....
View ArticleRT webservice on allen-bradley panelview HMI?
Hello, anywhere I can find the requirement for the browser that will be used to display wedsites from a RT target? I've made a simple VI, just some controls and indicators, and I can easily see it IE...
View ArticleUsing One Property Node For Multiple Controls/Indicators
Question for all you LabVIEW gurus. Is there a way to create 1 property node that is used for multiple indicators? For example, if I wanted to display the same value on 10 different indicators using...
View ArticleHigh Speed Streaming with Multiple FPGA FIFOs and TDMS Advanced Asynchronous...
I am using an FPGA with adapter card (7962 with 5751) for data acquisition and signal processing. I have adapted the FlexRio example "High Throughput Streaming," which works very well for a...
View ArticleKeithley 2000 Service Request Timing Problem
Hi all, I need to configure the Keithley 2000 such that it triggers every 1second. Then, I would like the instrument to generate a service request when a reading is available (reading has to be taken...
View ArticleWaveform accidentally scaled before PSD, how to undo?
Before passing the waveform to Power Spectral Density VI, it was divided by 1000. I am getting my PSD output in dB. How could I undo the effect of the division? Is there any factor to scale by? The PSD...
View ArticleScaling input signals
Hi forum, i am wondering what is the best way to scale input signals i used the scaling.vi is there another way to do it more nice.THanks and bestMartin
View Articlepower electronics switches
hi friends can we build models for power electronic switches like DIODE, SCR, MOSFET and IGBT? if yes how can we built it? and give some examples if you have. it...
View ArticleDetermine the Cut-off frequency of Low Pass Filter
Hi, Have a class assignment where we are given a subVI "dlsimfilter2" with a Voltage and Amplitude Input and a Voltage ouput, which is a low pass filter. The object of the assignment is to determine...
View ArticleHow to convert RDF file to Labview File
I am trying to open a RDF file in Labview. What are some steps I can take to allow Labview to open the RDF file.
View ArticleConvert waveform (DBL) to a cluster of 2 elements
Hello, Can someone help me convert waveform data type (DBL) to a cluster of 2 elements (X,Y). I found a few examples online but I keep getting an error when I wire everything together. I'm using...
View ArticleTDMS Write and Read
I'm trying to write to tdms file, my data is in 2d array 2 channels and 1000 samples each channel (no time column in my data), i'm able to create file and data is saving into it also i'm trying to read...
View ArticleAuto I/O write
I am wanting to write my set point data (from a csv file read) every time my csv read loop automatically reads the next row of data. The csv file (I attached it) has three columns of data; set point,...
View Articlerevert .vi files to labview 6.0 version
Hi, I was trying to use the newest labview to open old .vi files written in labview 6.0. But I got so many warnings and couldn't get it to work. So I decided to change back to 6.0 version. I made a...
View Articlesharing an analog input across multiple application vis.
Have a single devicel, a USB-6343 here and 4 Vis running as seperate executeables.. but they all need different channels off that device (D I/O, AI/O, counters). This works except when it gets to...
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