how to turn off a LED in an array

[Veeru]

Thanks altenbach and Ravens

Becoz, once  a option is choosed in the drive select list it should not be available to select again until that option is turned OFF

Thanks

[Veeru]

Its working.

[altenbach]

The reason the indicator belongs BEFORE the event structure, is so it gets to a defined state (all black) after you start the program. If you place it after the event structure, it won't get updated correctly until one of the events has fired. This is a problem if you run the program several times in the same LabVIEW serssion and the indicator still has some stale values from an earlier run..

After one event has executed, the behavior is the same. Later, it does NOT matter if you update it after the event in the same iteration or at the beginning of the next iteration. There is virtually no time difference. So: Place it before the event structure, exactly how I did it in originally!

I would recommend that you don't randomly change things around. There is often a good reason I do things in a certain way. Trust me! 😄

Message Edited by altenbach on 07-08-2008 05:15 PM

[Veeru]

yes its true,i checked earlier.but the problem is to turn the indicator OFF

[altenbach]

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Veeru wrote:
...but the problem is to turn the indicator OFF

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This has nothing to do with the position of the indicator terminal with respect to the event structure. To turn off an LED, you just replace the appropriate array element with black. The code will be similar in style to what you already have.

Do you still have a problem?

[Veeru]

yes

[Ray.R]

Do you mean the last one you posted saying it worked?

[Veeru]

yes,but altenbach has given the reason for placing the indicator array infront of event structure

[Ray.R]

Okay.. that means that you have a newer version, right?

Can you post that one?

R

[Veeru]

No,the one i said working is the program I am having now,after  altenbach reason of placing LED i am using his example.

Thanks