is there a way to have a timer switch something on or off at a given point within the timer?

example:

i have a timer that is 8 minutes long but would like to switch something on/off at the last minute remaining and the timer will change according to the input given.

i have tried to look at using a mathematical block but that dont seem to do it.

any ideas if possible.

thanks

You can make it with 2 timers. Timer 1 setting 7 minutes, timer 2 setting 1 minute.

Tell me what you wishes, Time ON delay, or. Time off delay?

@ixo65:

The question that thedodgy1 asked is very specific. Your understanding and offered idea, I think is the right one. My offering is not to give a solution, just give reason for discussion of what can be done with LOGO.

I hope to still see your idea.

Good evening.

There is a possibility.

You can use VM modus, there is a remaining time of a timer you can use.

Look in the attachment.

Q2 is High if time less 1 sec. You can adjust it to minutes

HAHA that is a nice solution.

A real backdoor to find a working solution.

I learned a nice trick today , thats what i call thinking out of the box.

 worked a treat thanks

Toeternietoe

There is a possibility.

You can use VM modus, there is a remaining time of a timer you can use.

Look in the attachment.

Q2 is High if time less 1 sec. You can adjust it to minutes