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How to set divisor and Measurement time for accurate frequency measurement?
Hi I am using PXIe 6368 DAQ. Could you please let me know how should I set the divisor and Meas time to have a accurate reading for frequency reading from 160kHz to 5Mhz. Is there a relation between...
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Problems with Key Down event
Hello LabVIEW and National Instruments society,I'm about to finish my Electrical Engineering degree .for my final project i'm building an "RC" car with many applications,The way I will control it is...
View ArticleAI Channels ON TO A USER DEFINED GRID
I want to drag and drop DAQ AI channels interactively on to this grid (see image). Only the selected channels on the grid are used for DAQ acquisition. I need some pointers/examples to implement this...
View ArticleVISA not showing COM port
Hello, I have made a simple VI which gets data from the PC com port.It runs fine on my desktop but today for the first time I ran it on my new laptop and it is not showing the COM port. I can see the...
View Articleblink reflex EMG signal conditioning
Hi:I am new to LV. I am trying to perform offline analysis of the electromyographic signal from the blink reflex, but I need to condition the signal, which is quiet complex in my experimental setting....
View ArticleHelp with TCP/IP reads with multiple read loops.
I am developing an application that uses TCP/IP to communicate with a custom device. In one loop (test result loop) I am constantly using a TCP read to monitor incoming information from my device. This...
View ArticleRMS calculation in Statistics Express
Hi all, I want to figure out whether the RMS calculation in Statitics Express will output a signal with a different "number of samples" than the raw signal. I read about the following...
View ArticleChart timestamp accelerating - why does this VI not work?
In fighting with TDMS files, I decided to experiment with a different approach to get what I need - a stripchart with a long history, that I can pause and scroll back through to look for anomolies....
View Articlehow do i disable a stop button within an event
Using LabView 8.6 I'd like to disable my vi's stop button so the user can't stop the vi unless the network application is in the correct mode of operation. I only want the user to be able to stop the...
View Articledrop event with multiple selections
The Problem: It is easy to drag and drop multiple selections from one listbox to another. Just left click the source and check drag and drop>allow dragging, >allow drag drop outside control and...
View ArticleWhere can I find LV2013 / 32bit ?
Surprisingly I see only 64bit versions available: http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/n1:2013,n8:28,ssnav:pdl/
View ArticlePictures in labview
Is there anyway to open a picture in labview without getting a white background square shape around it?
View Articlehow to merge event structures?
I have a VI scripting program that reads a text file of registers and outputs an event structure. It works great because it creates all the controls and indicators that I need associated with the...
View ArticleAdd one column of string to columns of integer
Hi there, Could someone help please. I would like to add one column of strings to a few columns of integer. --------- Added elements ------ 20C=...
View Articlescroll between plots on a graph, while VI runs
Hi, While running a VI, the graph is totally inactive. I would like to see the different plots, so I would like to scroll between plots, while the VI is running. Is there any possibility to do...
View ArticleWriting thermocouple data to measurement file from while loop
Hello, I'm trying to write thermocouple data that has already been filtered into a measurement file. My code works, but has many zero-time entries (probably from the filtering aspect), and some of the...
View ArticleRT cRIO-9025 CPU Usage
Hello, We are using cRIO-9025 and want to capture the CPU uage of it. We can use the "RT Get CPU Loads.vi". However, if we are calling this function @1HZ then we also want to get the maximum CPU...
View Articlelag while programming LabVIEW 2012
After reading a few different posts about lag, I havent found an answer for my question.I am currently running LV 2012.Windows 7, 64bit16gb ramIntel chipI get extreme lag while programming and...
View Article3d scene 3d object
Hi all, I have this problem: I'm creating a functional global variable that creates a 3d scene with x,y,z axes, then updates it adding 110 little 3d spheres. My problem is that when I create the scene...
View Articlesave or clear on button press
My program collects a couple points of data on a button press using a state machine. The data are velocity measurements from multiple points along a track - I've got that part working (in the vi...
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