Re: Using Circular Region as Input
It sounds to me that you are using the following equations for a point on a circle at time t: x(t) = x0 + r sin(omega*t) y(t) = y0 + r cos(omega*t)where omega is the frequency that you are zipping...
View ArticleRe: Methor or property for tools>>options
That is what you would use to update your function palette when you install new functions with mnu files. If that is not what you mean, then be precise.
View ArticleTimed loop with irregular intervals?
Hello all, I'm trying to program a vi that writes a serial output at predetermined times, but I'm not sure where to start and I don't seem to be able to find anything in the examples (but perhaps i'm...
View ArticleRe: fastest continuous data acquisition cDAQ
Hi, the rest of the program won't be doing much, 4-20mA open loop control to a motor or something, nothign fancy. I remember hearing that a Windows machine can only give you about 1ms loop time...
View ArticleRe: how do i get data from a website?
Here is a brief description on using web sockets to scrape a website for temp data... http://labviewtest.blogspot.com/2012/04/website-scraping-with-labview.html
View ArticleRe: Timed loop with irregular intervals?
WorkingCat wrote: All the timed structures in labview work in fixed, regular intervals (the time between each loop execution is the same).Not from what I've seen. With the Timed While Loop, you can...
View ArticleRe: fastest continuous data acquisition cDAQ
The Windows time resolution has nothing at all to do with hardware timed I/O. The specs for each device are on the product page. If you would just browse the product pages, you would see the...
View ArticleRe: Timed loop with irregular intervals?
Using a timed loop on Windows is actually kind of silly. A normal while loop will work just as well. I do not advise a regular wait or delay function to set the interval. With the Elapsed Time...
View ArticleRe: fastest continuous data acquisition cDAQ
Yes I was just accquiring a sample every iteration so these rates of 250kS/s are achievable with a regular windows computer? I'm guessing just grabbing a bunch at a time and then during the loop...
View ArticleRe: fastest continuous data acquisition cDAQ
The rates are easily achievable and you can stream to disk. It's only when you save to a text file that you need to start worrying about using a producer/consumer design and a queue (in general).I...
View ArticleRe: Timed loop with irregular intervals?
If you don't mind multiple parallel loops, you can implement a "scheduler". It works by using something like a Queued Message Handler to execute "Commands" at specified times. One loop is the "clock"...
View ArticleChanging the value setpoint at every 50s using elapsed time express
Hi. I am developing a tank level control system program using Neural Network based controller and trying to compare with PID based controller. I need to do experiment to compare results of these two...
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Re: Xively PUT data
Ok updated again. feed id, api_key, feed title, datastreams data package seperated. I belive this will become a sub.vi to the main that will structure the datastream package of data.
View ArticleRe: Refnum is No Longer Valid
Thank you, i wil try "Call and Forget" (option0x80) , but does that mean i can't get the results any more ?
View ArticleRe: Event Structure to Encode Arrow Keys not working on MyRIO
Event structures dont fully work on real time targets because the front panel executes on the host while the block diagram executes on the real time...
View ArticleIMAQdx change fps adquiring with USB camera
Hello, Im working with Labview to process images captured with an USB camera. I would like to know how to change the adquiring conditions of the camera, in special the frame rate per second (fps), the...
View ArticleRe: Event Structure to Encode Arrow Keys not working on MyRIO
Hi, Thank you for the response. I am curious, but will the usereventinRT.vi work to "create" an event structure in RT? I'm new to creating VI's in real time so any help would be appreciated! Thanks again!
View ArticleRe: Export data from excel and plot graph in labview
i am trying to plot the graph in Labview. i tried use LabVIEW's Graph or Chart indicator and wire your data to it but i does not work. i does not allow me to connect. can u help me on that?
View ArticleRe: Lab View crashing when creating new bound variable
Hello.I have the same problem with Codesys 2.3 OPC Server.Does the patch work for it?
View ArticleRe: measuring distance between two points in an image
mm.. am sorry sir, The image is color..il attach one..frame rate is 30fps..
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