constant flow rate problem

[LaplaceT]

I want a constant flow rate of 3L/min with 2 inputs, and I'm trying to figure out how to get my sliders to auto adjust based off one another.  If one slider is adjusted to .5L/min, I want the other to automatically balance out at 2.5L/min. How do I go about doing this?

[GerdW]

Hi Laplace,

a simple calculation like "3 - 0.5" would do the trick. Set the 2nd slider using it's local variable...

[LaplaceT]

Thats not quite what i'm looking for.  I'll try to explain a little better.  I have 2 sliders ranging from 0-10, how do I make it so that the value at slider A and value at slider B combined = 10.  If slider A is currently at 10, slider B adjusts to 0, if I move slider B to a value of 3, slider A adjusts to a value of 7. They need to balance according to the other sliders value.

[GerdW · Accepted solution]

Hi Laplace,

use an event structure to detect value changes of each slider. Adjust one slider according to value change of the other slider...

[TylerDurden]

Hi Laplace,

Gerd is right. Use the attached simple VI.

Tyler

[LaplaceT]

Ok, got it! Thank you all for your help, i'm new to labview as you can probably tell.