topic Re: Filling a Tank in LabVIEW

Filling a Tank

Jo0007 — Mon, 03 Jan 2022 18:41:57 GMT

Hello I am new to LabView software and got stuck in a simple problem (although confusing for me...).

The filling of a graduated tank from 0 to 100 by a step of 20 in each 100 ms with a timing indicator.

I was able to fill the tank however could not think a way to time its increment "by a step of 20". Could you please help me out?

Re: Filling a Tank

GerdW — Mon, 03 Jan 2022 18:46:19 GMT

Hi Jo,

@Jo0007 wrote:

I was able to fill the tank however could not think a way to time its increment "by a step of 20". Could you please help me out?

So why don't you attach your current VI? (Do you really think we will do your homework for free?)

Hint: when something (aka the same operation) is done be several steps (aka in a repeated way) then you should use a loop.

Hint: To remember a value from one iteration of a loop for the next iteration of that loop you should use shift registers…

Re: Filling a Tank

santo_13 — Mon, 03 Jan 2022 18:47:08 GMT

Please share the VIs you have created so far for the forum members to guide better.

P.S. - it is LabVIEW not LabView

Re: Filling a Tank

altenbach — Mon, 03 Jan 2022 18:48:55 GMT

I am sure we can tell you what you are doing wrong once you attach your VI.

Time is a very important component of LabVIEW, and there is an entire timing palette. Try to find something that would help you.

Is this a real tank where you controls valves, etc. or a simulate tank on the front panel?

(Have you used any of the learning resources listed at the top of the forum?)

Re: Filling a Tank

Jo0007 — Mon, 03 Jan 2022 18:57:01 GMT

attaching my VI here...

Re: Filling a Tank

altenbach — Mon, 03 Jan 2022 19:09:40 GMT

Sorry, I don't have LabVIEW 2021 here. Consider "save for previous" before attaching.

Re: Filling a Tank

santo_13 — Mon, 05 Jan 2026 21:03:51 GMT

And one more thing, very few of the forum members have LV2021 on their machine to open the VI. You will cover a larger audience if you share the VI in 2016 version.

https://www.ni.com/docs/en-US/bundle/labview-api-ref/page/dialog-boxes/save-for-previous-version-dialog-box.html