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"Variance PtByPt.vi" generates negative values for certain input values
With certain sequences of input values the Variance PtByPt.vi can generate negative values. This is due to the finite precision in the calculations. Because it is very common to calculate the standard...
View ArticleHBN tw20N torque transducer to CB-68LP collector board wiring
Has anyone used an HBN tw20N torque transducer with a CB-68LP collector board? If so, can you give me the pin to connector mapping? I'm asking for a friend and I don't have the HW in front of me but I...
View ArticleHow to add D data read array (column) to 2_d array as a row
For instance: I am reading 2 Voltages and 2 currents in real time (per second) as follows and getting an array as follows: 120.3120.55.25.0 I would like to insert this column as a row into an array of...
View ArticleUrgent!!! Color changes in XY PLOT!
I have a set of ranges for a particular quantity(i have a numeric controller as input).Ranges are somewhat like 0-5, 5-10,10-15... etc. I need to plot the quantity on XY PLOT, NOT XY GRAPH.I want to...
View ArticleSpecific Point Selection on X-Y Graph
Dear All, I am quite new to LabView and sorry for asking simple questions. In my program, a detector (mounted on a translational stage) voltage output is being read as the stage is moved by constant...
View ArticleHow do I correctly preallocate an array to reduce memory?
Hi all, I have a very large 2D data set that I am trying to load into LabVIEW... The file is in tdms format... Previously, I was reading the data in with chunks of 20,000 x 7 elements and was building...
View ArticleControl and indicators not responding when using DMA FIFO in FPGA
Hello all! I have a problem regarding front panel (i.e., controls and indicators) when using DMA FIFO in FPGA. I wrote a simple program for data acquisition of a DC/DC converter (for which I need...
View ArticleMAKE A IMAGE FROM TILING OF SMALL IMAGES
HI,I want to make IMAGE FILE using number of other image tiling together!! how?
View ArticleSearch and Replace vs Match Pattern
I wanted to write a VI that would take an array of strings, a Search Pattern that adheres to the "simple Regular Expression" rules used by the Match Pattern function and the Search and Replace (with...
View ArticleMetal detector Robot using labview
We are planning to make a robot that is controlled by Labview to detect the metal and to capture the image which is detected and send it to user......i know only basic knowledge of Labview and...
View ArticleWriting position of stage to file as it moves along with relative time.
I'm wondering how to get the position of a stage I am controlling through labview to continuously write its position. I have an indicator set up with its position and the indicator shows the values as...
View ArticleMAX shows PXI card when booted into Windows but not in Hypervisor mode
Hello again all you helpful forum-goers! I'm having some difficulties with a Hypervisor system seeing the two Pickering 6 channel programmable resistor cards that are loaded into the PXI chassis. When...
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Problem with HTTP:Post on a TPC-2206
I have problems with this code when running as a build on a TPC-2206 with Windows XP Embedded. (The code works fine on my laptop with windows 7).I think the problem is that I need a web service...
View ArticleContinuous sampling method get unreasonable values
Would like to measure the amplitude of a signal as attached file 'Ori.jpg', if using N samples method (1k samples, 239kHz rate) for data acqusition, the result was perfect as file '1k_N.jpg'. But the...
View ArticleHow to get TCP/IP live data
I have a program (which is an executable) which detects the signal from a hardware and then transfer the signal into the local host TCP/IP socket. When I run the program by itself and count the bytes...
View Articlelabview program
Hi,i need a program that saves a measurement in a file with points in which this is measured:I give for a program a first value x0, last value xN and measurement interval dx=const then I meuasure with...
View Articleslow speed in image detection (vision toolkit)
Dear Labview users, I have a small problem concerning the speed of loop used in image processing. According to the exemple provides in the vision module I created an iv on my personal computer. The...
View ArticleSending SMS automatically
Hi, i made a manuel send sms but how do i create a auto send sms when a certain data is being received. Which means user can choose to use auto or manuel send. May i know how do i do the choosing part...
View ArticleApp builder with .inf file
Hi, I try to make deployment for a Labview app that use a .inf file to communicate with a printer. After the installation the printer don't work. I use a control for send data...
View ArticleFront Panel Event case
Hello, guysI am having some issues with data being uploaded from a spreadsheet to a VI. When I import the data, I have to plot the graphs and refresh the status bar of my program. The problem is that I...
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