What happens to variables' values when cRIO reboots ?

Hi!
I'm currently developping a software program that will run on a cRIO as a startup program. I have to code a production counter to determine how many products passed the tests. A web server will used to sometimes check that counter...
What happens to the counter value if cRIO power supply is turned off ? Will the counter be reset to 0 when rebooting ? If yes, how to avoid this behaviour and restart with the last count ?
Solved!
Go to Solution.

That's what I tought ! I was trying to avoid programming a routine which stores data in file every time varaible's value change... and which may slow my RT program... But I guess I'll have to do so !

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How Can i retain the Shared Variable Values after PC rebooting

Hi all,
I am facing a paculiar problem with Shared Variables. I have an application in which shared variables are used for data communication.
One of the application requirement is to retain the variable values eventhough PC is rebooted or started after crashing.
As per the my understanding, the variable values will retain eventhough the PC is rebooted. But here i can observe a paculiar problem like some library variables are retaing the values while some others not. I enabled logging for all the variables.
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Thanks for the post and I hope your well.
What do you mean by not getting consistent behaviour.. this will all depend on excatly when the crash happens i.e. before the write or after.
Surely a better method would be to log the data to a file during the reboot...
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I guess, if you could explain to me again that would be great. From my point of view, if I have a cRIO and a Windows PC. If the windows PC crashes, the cRIO will still update its shared variables. Then once the PC has started up its own shared variable engine, and the bindings are loaded, it will once again continue to update its copies of the variables.
Please let me know what you think,
Kind Regards,
James.
Kind Regards
James Hillman
Applications Engineer 2008 to 2009 National Instruments UK & Ireland
Loughborough University UK - 2006 to 2011
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What happens to variables' values when cRIO reboots ?

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