Chief Delphi - Limit Switch problem

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Zellboy

12-02-2009 16:02

Limit Switch problem

We're trying to program a digital input with a limit switch. How do we set the if statement?

This is what we have so far

Code:

if(Clamplimit -> Get() > 0)

{

       s[0] -> Set(false);

       s[1] -> Set(true);

}

Is it correct?

Alan Anderson

12-02-2009 16:43

Re: Limit Switch problem

How you write the if statement depends on what you want it to do.

What do you want it to do?

Zellboy

12-02-2009 16:48

Re: Limit Switch problem

We have a claw connected to solenoids 7 and 6. We want the limit switch to close the claw when it's hit

Alan Anderson

12-02-2009 16:59

Re: Limit Switch problem

You just need to turn

Code:

if (limit_switch_active)

{

    activate_solenoid_6;

    activate_solenoid_7;

}

into real code that compiles.

Replace limit_switch_active with whatever it takes to read your limit switch. That's something like Clamplimit->Get(), right? Replace the activate_solenoid_# with whatever it takes to put your solenoids in the desired state. I don't know how you've instantiated your limit switch or your solenoids, and I don't know how they are wired, so I can't give you working code to copy and paste.

I assume you'll want some way to open the claw later, right?

Zellboy

12-02-2009 17:21

Re: Limit Switch problem

This is how we have it set up

Code:

DigitalInput *Clamplimit;     //Limit Switch for clamp



Clamplimit = new DigitalInput(2); //Limit Switch for clamp (Digital Input)



if(Clamplimit)

{

       s[6] -> Set(false);

       s[7] -> Set(true);

}

Will this work as is?

Redneck

12-02-2009 19:38

Re: Limit Switch problem

No, it needs to be:

Code:

DigitalInput *Clamplimit;     //Limit Switch for clamp



Clamplimit = new DigitalInput(2); //Limit Switch for clamp (Digital Input)



if(Clamplimit->Get())

{

       s[6] -> Set(false);

       s[7] -> Set(true);

}

Also, what class is s an instance of?

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