Show the last state of controller from spreadsheet

[El-Awny]

In this example, I want to control 6 LEDs, I want to get their last state shown at controllers and indicators when i open the VI again
For Example
Start > all off > i turned on first 3 of them > I closed the program > when i open again i want to find that 3 of them are on and 3 are off and able to change their state using the controller

[GerdW]

Hi El,

save the current state of your LEDs when you exit your VI. Upon start of the VI you load that state information and update your front panel as needed...

[El-Awny]

I don't want to do it Manually, Is there any way to do it automatically every time using the spreadsheet ?

[hidayatmaulud]

Hi @El-Awny,

Maybe you can try this, save the last state using write to binary file. 

While u run the program, read that file again to init the last condition..

Day@

[RavensFan]

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@hidayatmaulud wrote:

Hi @El-Awny,

Maybe you can try this, save the last state using write to binary file. 

While u run the program, read that file again to init the last condition..

Day@

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The problem with that VI is that every 10 msec, you are opening a new file reference to write data to, and never closing  those references other than the very last one when the VI ends.  You'll slowly leak memory.

[natasftw]

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@El-Awny wrote:

I don't want to do it Manually, Is there any way to do it automatically every time using the spreadsheet ?

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They didn't mean by hand.

[hidayatmaulud]

You are right,
There are so many method to do that, we can use event structure too to save memory..