Data input to array

[Thuba25]

Hello,

'Looping Table.vi" This VI generates random numbers and gets the real time to plot them into a table. After a certain amount of entries, say 10, the first entry gets deleted and so on...(like First in First out (FIFO)).

I would like the same concept but instead of a random number generator, i would like to control the input with a numeric slider and have the entries shown in an array, with after 10 entries the 1 first gets delted and the 11th entry gets inserted, like a queue.

Any help would be appreciated! 

[altenbach]

Continued from here

[Miraz_Automation]

Hello Thuba25,

You can make use of Array size, Build array and Replace array subset functions to achieve this. Try to draw a flowchart before implementing code this will give you idea where to use which finction.

[Thuba25]

Hello Miraz,

Thank you for your tip! I have used what you suggested and come up with this new VI. However, my problem is that, if I move the slider out of the while loop ( to implement that external data is going into this sub while loop) then how can i do the same thign as before?

Moving the slider outside the loop will only register the same number over and over again, and will not update the new values.

[altenbach]

You need to learn dataflow.

If you acquire data externally, the acquisition needs to be inside the loop. Alternatively, the data can be read elsewhere and you could use a queue to read it in this loop.

You can right-click the slider to make it U8.

[Miraz_Automation · Accepted solution]

Hello Thuba25,

I could not see your VI because I have LabVIEW 2010 and not 2013, however to answer your question, you can move the slider outside the while loop and then use a queue structure to acquire the data from it.

I think the problem you are trying to solve does not require the queue structure, your code will become unnecessary complex.

Please give a little more try, I am sure you will reach to solution else the forum will provide solution.