Chief Delphi - HELP!!! BOOLEAN VARIABLES IN LABVIEW

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HELP!!! BOOLEAN VARIABLES IN LABVIEW

Hey guys, I'm having some trouble getting limit switches working in our robot. We are using 3 Limit Switches for different positions on the Lazy Susan. We have planned out the code in notepad as follows,

Code:

//ls1 = limit switch 1

//ls2 = limit switch 2

//ls3 = limit switch 3

// 1= go left

//-1 = go right



boolean left = 0

boolean top = 0

boolean right = 0



if (ls1 = 1) then

        left = 1

end if



if (ls2 = 1) then

        top = 1

end if



if (ls3 = 1) then

        right = 1

end if







//button 4

if (left = 1 && top = 1 && right = 0) then

        speed = 1

        if(left = T) then

                top = 0;

                speed = 1until ls1 = 1

end if



if (left = 1 && top = 0 && right = 0) then

        speed = 1

        speed = 1 until ls1 = 1

end if



if (left = 1 && top = 1 && right = 1) then

        speed = 1 until ls1 = 1

end if



if (ls1 = 1 and left = 1) then

        speed = 0

end if



/button 5



if (left = 1 && top = 0 && right = 0) then

        speed = - 1 until ls3 = 1

end if



if (left = 1 && top = 1 && right = 0) then

        speed = - 1 until ls3 = 1

end if



if (left = 1 && top = 1 && right = 1 && ls3 = 1) then

        speed = 0

end if





/button 3



if (left = 1 && top = 0 && right = 0) then

        speed = 1 until ls2 = 1

end if



if (left = 1 && top = 1 && right = 0) then

        speed = -1 until ls3 = 1

end if



if (left = 1 && top = 1 && right = 1) then

        speed = - 1 until ls3 = 1

end if



if(ls2 = 1) then

        speed = 0

end if

We need help initiating a boolean variable(or array), but we cant find it in LabView. help us pl0x.

Re: HELP!!! BOOLEAN VARIABLES IN LABVIEW

You can create a booolean variable by right-clicking on the front panel of the VI and selecting Modern and then navigating to the Boolean palette. There should be options there. An indicator/controller will appear on the backpanel.

To init the boolean, you can wire a constant to it, and then reference the boolean by local variables, (created by right-click on the object > create > local variable). The initial value will only be used when the indicator hasn't been accessed by a local variable and updated.

Re: HELP!!! BOOLEAN VARIABLES IN LABVIEW

For the most part, in LabVIEW, what would be variables in C are just wires between things. I don't think you need to do anything special. Just read the state of your limit switch. Its output will be a boolean value that you can wire up to the rest of your functions.