How does LabVIEW manages memory concerning data acquisition ?

[Giovani]

Let´s say I want to acquire a single point of a given channel.

I can do it many ways and two of them are the following ones :

1.Through the use of the AI Sample Channels VI
2. Using the following VIs in the given order:
AI Config -> AI Start -> AI Read -> AI Clear.

I know the second option ia an example of buffered acquisiton and I think that after acquisition is done the memory associated with it is released by the AI Clear VI. I think the first one is better for my application but after a period of time, the response to the user inputs become so slow until there´s no response at all. Why is that such a simple application makes it happen ?

If there´s any information needed to unders
tand what I mean please let me know.

PS :

I´ve attached two jpg files, one showing the front panel of my VI and the second showing its block diagram.

[AlessioD]

Giovani,

by looking at the block diagram in your application, you might want to insert a timing function (wait until..(100ms)) in your while loop.
As things are right now there is no time for the user interface to get handled.

AlessioD
N.I.

[Giovani]

AlessioD,

Thanks a lot for your sugestion.
I´ll implement it and as soon as it´s possible I´ll post a message here to let you know if it worked.

Sincerely,
Giovani Marcelino Nesi
DRV - Desenvolvimento e Representação Virtual Ltda.