LED command timed loop counter

[camr_tna]

hi!

I made this program who does the following sequence:

1. a switch for on and off

2. it will turn on the my LED then turn off after X seconds.
 

This is attached to my digital output so i can that my attached voltmeter reads voltage


It worked fine but i noticed it only does two iterations so i do not know where i made mistake

Help!

[GerdW]

Hi camr,

any error messages?

How did you configure your switch? Does it use switching or latching mechanical behaviour?

What's the point of ORing with FALSE? 😉

[camr_tna]

No error message.

mechanical switch: latched when released

What's the point of ORing with FALSE? - my bad, i belatedly saw that redundance.

[GerdW]

Hi camr,

so your switch is reset to FALSE as soon as it gets read. And you wonder why your loop doens't count seconds anymore?

Did you try to debug your VI using basic debugging tools like highlighting? What are the inputs to the AND function in each iteration?

[camr_tna]

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@GerdW wrote:

Hi camr,

so your switch is reset to FALSE as soon as it gets read. And you wonder why your loop doens't count seconds anymore?

Did you try to debug your VI using basic debugging tools like highlighting? What are the inputs to the AND function in each iteration?

---

it does count.

it works well

but the iterations only goes twice.

[GerdW]

Hi camr,

then check your STOP condition. When the loop only iterates twice it seems to be stopped unexpectedly. (That's why I asked for error messages…)