Saving and Restoring Pump Operating Hours in LabVIEW

[Felipe_Alves17]

Which way would you recommend? Show me the step-by-step process? Would it be using Write To Measurement?

[GerdW]

Hi Felipe,

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@Felipe_Alves17 wrote:

Which way would you recommend? 

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We told you here, here, here, here, here to save inside the loop.

You even noticed this suggestion before…

[Felipe_Alves17]

I put it inside the loop and it gave this error

[altenbach]

You probably want to close it after the loop, right?

[Felipe_Alves17]

I already have a while loop running in my program, and it can't be interrupted. Within this same loop, I need to implement the hourmeter logic.

The goal is that, every time the pump is turned on, the system records the time it was on and increments that value to the total accumulated until the pump stops.

The problem I'm facing is that, because of the way the while loop is already structured, a conflict is occurring when trying to read and write this hourmeter logic within the same loop

[GerdW]

Hi Felipe,

why are there backward wires in the last image?

You cannot write to a file once you close it...

[Felipe_Alves17]

I believe the image is disorganized, I apologize, here is the image

[altenbach]

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@Felipe_Alves17 wrote:

I believe the image is disorganized, I apologize, here is the image

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Still disorganized and you still close the file reference in the first iteration, making it invalid for the rest of the run.

[Felipe_Alves17]

Did this image look better?

[GerdW · Accepted solution]

Hi Felipe,

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@Felipe_Alves17 wrote:

Did this image look better?

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Nope, still backward wires!!!

See this as a suggestion:

• When you close a file then you cannot use its reference in the next iteration! Solution: open the file again…
• All wires going from left to right: did you ever read the style guide in the LabVIEW hellp???
• As noted in the image: you need to implement error handling!!!
• Please don't name VIs with "FINAL" when they clearly aren't finalized…