Long Press Button Implementation (counter reset)

[Dimitri Krut]

I am trying to implement a long button press (>1 sec) to reset a counter or a clock that otherwise need to keep running

Can someone point to an example or offer an idea?

Thanks!

[Ausman]

OK.  Let's break this down to the separate things needed to achieve this.

1).  Push a button.

2).  Count a period of time that the button is pushed for.

3).  At the end of that period of time turn on an output.

4).  The output does the required action and then resets.  It might even show something on a screen that says it has happened ok and you can now stop pressing the button.

Hmmmm.  Well that would either be a timer, or a count incrementing in value, continuing to do so whilst the button is held on, and then resetting ready to do it all again on next long push.

It's over to you now to work on this idea.

cheers, Aus

[Dimitri Krut]

This is what I basically expected.  Being new to this, I was hoping that there is some primitive command or function capable of handling this. Long press button features are very common and it would be nice to have it precoded.

Thanks,

D.

 

 

[hotwires]

It’s not “pre coded”. Fairly simple to construct however. Link display element ( touch feild) to a memory bit (MB1), in ladder use NO contact to drive timer coil, second net: use a PTC (positive transistional contact) to drive a reset integer function —[R]—

 

     MB1                             T1

——| |————————(   )——

 

       T1                                C1  (or T)

—-|P|————————[R]——

 

alternatively I believe timer can "self one shot" but would repeat cyclically if button was held longer than usual:

     MB1         T1            T1

——| |———|/|———(   )——

 

       T1                                C1  (or T)

—--| |————————[R]——