Error in database reading ! help needed please.

My project involves monitoring of ovens.
The temperature from the oven are obtained using advantech ADAM module.
Each material enters the oven and an alert is given to take it out after the desired time inside the oven.
When i execute this program. an error pops up exactly 1 our after the start of the program.
Kindly help me.
I have attached the source code including the DB files and the error screen shot.
username: 123456
pass: 123456
Thank you ina advance.
Please help figure out the error.
Regards
Grugh Mike
Success is Everything !!
Solved!
Go to Solution.
Attachments:
New Microsoft Word Document (2).doc ‏151 KB
source.zip ‏4529 KB

The biggest problem in your code is architectural. You need to learn about a few things like event-driven programming. As but one example you have an administrative operations VI that would be much smaller and much more efficient if it were built around an event structure and not multiple case statements. Your main application uses sequence structures - which are never necessary. As I recall, the last sequence structure I used in deliverable code was in the spring of '88.
You also are not handling any of errors - which I suspect might be the source of your problem. It's possible that due to an error (which is going unreported) that a connection is being left open when you think it is being closed. But at this point that is just a guess.
Fix the structural problems and you'll then be able to troubleshoot your DB problem. Shoot, in the process of fixing the structural issues, you may fix the DB!
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

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