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Registry Edit Permissions in Windows 7 and after
I have an issue where I need to manipulate the latency setting of a number of COM ports in windows to a value other than the default. I can successfully read the value; however when I try to write the...
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How to sample data every two points in LabVIEW FPGA
Hello everyone, Now I want to use the High throughput math function to do calculation. The function I used is Arctan(x/y), which has 2 input ports, x and y. My block diagram as follows:The data comes...
View ArticleCan I trigger an event using a DAQmx device?
Hello,I'm currently using a NI USB-6000 to acquire an analog signal in form of a triangle wave. Now I want to know if there is a possibility to trigger an event in my VI using the extremes of the...
View ArticleFailure to load .NET dll in Labview
HelloI am writing some code in labview that is using a .NET dll. The dll is part of a larger application that consists of many other dll:s and somewhere along the way it fails to load one. Most of the...
View ArticleHow to acquire a signal with high frquency more accurrency.
Hi guys, I just would like to ask a qestion about data Acquisation. Now I am using the NI PCI 6221 to acquire two voltage signals, one is from function gerenator with sine waveform and the other is the...
View ArticleRemoving zeros and synchronising data inputs to a real time graph
Hi, I am trying to read data from an Arduino which is reading from 3 ultrasonic sensors. In the code i am trying to do, I am using trigonometry with only 2 sensors so that i can find the angle to do...
View ArticleSaving data in continuous mode for specific period of time
Hello I have a question regarding saving data. So basically I am trying to acquire pressure signal to be recorded for specific period of time. I have connected my pressure transmitters to NI 9239 and...
View ArticleRS 485 communication between RIO and PC
Hi, I'm trying to set connection from PC to cRIO9030, by USB->RS232->RS485 converters. When I'm sending data from PC on RT I'm getting invalid values, for example when i'm sending 65 number, I'm...
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Minor bug: disappearing coersion dots
I was working with an array of double going into a cluster with a few different data types. I inserted "to single" on the top wire. All of my coersion dots disappeared and it caught me by surprise....
View ArticleHow to use a thermal camera in Labview (Optris PI 640)
Hello, I am working on a project which involves the use of a thermal camera (Optris PI 640), but I can not get labview to view images/video from the camera. I tried using vision acquisition. It...
View ArticlePopulating the Dropdown menu/fieldset in HTML page employing LV Web-services.
Hi, I have created project with LV Web-service with MySQL database. So the chain looks like MySQL(table) -> LV Web-Service -> ESP generated HTML Page.I want to read the MySQL database and...
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Optimize DB Tools Set Parameter Value
I am making a call to a stored procedure to load blob data. This stored procedure takes about 20 ms to execute. Setting the blob data parameter takes almost the same amount of time, and the two seem to...
View ArticleBuilding LabVIEW Installer with File Structure
Hi There, I have a rather large file folder structure that we want to push out to our end users, and I want to make a simple installer that does this all seamlessly. Here's an example of our current...
View ArticleDAQ time lag
Hi, I'm running a photosensor which detects drops. This requires data to be collected with 5ms gaps in collection or better.I'm using finite sampling on Labview 2009, taking 100 samples at 1kHz in a...
View ArticleAccess scope for polymorphic VI's- public for polymorph, private for selected...
I'm a bit new to LVOOP so please let me know if I'm doing something fundamentally wrong here. I'm working on a test application that can have a number of different types of tests. To keep it simple,...
View ArticleNUGGET: Use shift-arrow to navigate table control
I found out today that you can use shift-arrow keys to navigate a LabVIEW table.
View ArticleSelect text in a table cell
By tabbing or shift-arrow navigating a table, the cell text is selected. However, I can not figure out how to programmatically select the text of a cell for the user to edit.
View ArticleCollecting Boolean data from SubVI to Main VI
Hello everyone,I am trying to acquire data from my subVI and use it in my mainVI. In subVI (Whenever i run the mainVI, subVI is running and showing the data, but nothing comes to my mainVI) , its...
View Articlellb lvlib or lvproj?
Hi all, could anyone shed some lights on when and why to use .llb .lvlib or lvproj? I'm using LV2013 and trying to update an old .llb written in LV7. Thanks.
View ArticlePercentage Indicator or Progress bar in a while loop
Hello,I tried using a horizontal indictor as a progress bar for a while loop execution. I've tried different scenarios and checked how the progress bar is behaving as I change things. It was displaying...
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