labview

Labview String output

How do I send a string output from a DAQ Board (NI- USB 6259) using labview? I want to send commands such as " CELL 0" or "READ" to a potentiostat device using labview. Thanks ...

Interpolation and Morphing of an image in labview and/or openCV

I am working on an image manipulation problem. I have an overhead projector that projects onto a screen, and I have a camera that takes pictures of that. I can establish a 1:1 correspondence between a subset of projector coordinates and a subset of camera pixels by projecting dots on the screen and finding the centers of mass of the re...

LabVIEW: converting numeric array to string array

Using LabVIEW 2009, I have a VI that outputs an array of U64 integers. I'd like the user to be able to perform discrete selection from among the elements of this array. I'm thinking of accomplishing this by programmatically populating a Menu Ring (as shown at http://digital.ni.com/public.nsf/allkb/FB0409491FAB16FA86256D08004FCE7E). Ho...

Why is activeX failing to create an object from a Labview executable?

Here is my scenario. I am using Quicktest Pro (VB) to create an ActiveX object from a Labview VI that I built into an executable. In the build specs of the VI I have enabled ActiveX server option (ActiveX server name: "MyLabviewProgram") and in the VI Tools>Options>VI Server: Configuration the ActiveX box is checked. So in QTP my code...

Labview + National Instruments hardware or ???

I'm in the processes of buying a new data acquisition system for my company to use for various projects. At first, it's primary purpose will be to monitor up to 20 thermocouples and control the temperature of a composites oven. However, I also plan on using it to monitor accelerometers, strain gauges, and to act as a signal generator. ...

Data Acquisition Toolbox for Matlab?

Has anyone here used the Matlab Data Acquisition Toolbox before? I've been spending a ton of time reading up on National Instruments products and their capabilities when used with Labview. However, Labview and NI hardware is pretty much the only thing I've looked at and I'm curious as to what is out there that competes with labview i...

MSSCCI compliant Mercurial client

Hi I am looking into a Microsoft Source Code Control Interface (MSSCCI) compliant Mercurial Client for integrating Mercurial into my IDE (LabVIEW). I thought HgSCC was getting close since it claims it uses the MSSCC interface for it's integration with Visual Studio, however it doesn't turn op in LabVIEW as an option. Does anybody know a...

Is it possible to optimize this SQL query?

All, I'm using this as the conditional to my select statement. WHERE RecDate >= '%s' GROUP BY DATE(RecDate), HOUR(RecDate), MINUTE(RecDate), SECOND(RecDate) - (Second(RecDate) \% %d) LIMIT %d Currently this query is taking a bit too long. What I'm trying to do here is gather X amount of rows after a certain date. I also don't want e...

PHP and Labview - grabing a value from labview and displaying the value on a webpage - two different computers on the same network

Hello. I am by no means considered a programmer. The only programming language I some what know is HTML - so be gentle :) My boss came up to me the other day and asked me if i wanted to learn PHP, so i said sure. He threw me some text books and said here's what i want you to do: There's a computer running labview that monitors various...

Can a LabVIEW VI tell whether one of its output terminals is wired?

In LabVIEW, is it possible to tell from within a VI whether an output terminal is wired in the calling VI? Obviously, this would depend on the calling VI, but perhaps there is some way to find the answer for the current invocation of a VI. In C terms, this would be like defining a function that takes arguments which are pointers to wher...

how to control LabView VI front panel switches (on/off, bar adjuster) using Python cripts ?

I have a front LabView front panel controlling switches and sensor voltage adjustors to the hardware and need to control these with Python script. I do not have much knowledge of LabView. Please explain how this could be done. Thanks in advance for your help ! ...

Drain a 3V coin battery with Labview to test the lifetime of the battery?

I want to simulate/measure the lifetime of a 3V coin battery. This is the circuit which will give the burst to the battery: link text The burst is controlled with the CTRL1 and CTRL2 lines with some timing rquirements. One burst is: ARM TX RX TX RX TX CTRL1 L H H H H H...

how much time do i need to learn labview

I know that this question is too abstract. But. How much time do i need to learn labview to become avarage labview developer? For example, if i buy good book about labview and have 8 hours per day (on my work) dedicated to labview learning how many days i will spend on labivew learning? Could you please provide example from your own expe...

How read values from Waveform (DBL) 1d Array and compare it with a double value in Labview

I want to stop my measurement (right side od the VI) when the user defined stop voltage has arrived in the measurement. But I do not know how I can read the voltage value from the waveform (DBL) 1d Array and compare it with the user typed stop voltage? Hope someone can help me with that. I have attached a snippet of my VI. You can use th...

Automate sending of files through sftp using copssh

Every month we send reports to a server using FTP. We run a query on a database to create the files then use the ftp functionality in LabVIEW to do the transfer. This runs on a Windows system. This works fine but now we have to switch to using SFTP and the CopSSH package has been recommended. As LabVIEW has no native SFTP functionality ...

How to Display Data in a Control in Labview

i have a numeric control( not Indicator) and a for loop(limit 5) i need to display the [current loop Index+ value in the numeric control] in the Numeric control. I'm new to lab view. Is there any idea to do this? ...

How to get the name of an External window in C# Application ?.

Dear all, i've developed a simple application (.dll) in LABVIEW and i implorted that dll to a C# windows application(Winforms) . Like [DllImport(@".\sample.dll")] public static extern void MyFunc(char[] a, StringBuilder b ,Int32 c); so when i call the function MyFunc a window will be popped up( the Lab View window( Front pa...

LabView: How to pass in parameters to .NET method using "Invoke Method" vi?

I have a .NET class library that I wrote in C++. "public ref class MyClass" defines a method "MyMethod" that takes two System::Int32 parameters. Here is MyClass first then my question: namespace MyNetAssembly { public ref class MyClassThatDoesStuff { public: MyClassThatDoesStuff(); void MyMethod(System...