Help with counter

I don't quite understand your question.

Can you describe in more detail when and how the count should start again?
If the output is on, what is the criterion that turns the output off again?

Try this in attachment.

The limit switch must open at ten times and close at ten times in the monitoring time, so the counter must count a value of 20.

walterluger

I am really new to this.  The part I don't understand is the block M (flag).  I am trying to figure out how that plays a part in the sequence.  Thank you

The flags (Mx) are a special function. They can be used to terminate a block that has a digital output.

They are absolutely necessary if a recursion has to be carried out in the program. LSC only permits recursions if a flag or a digital output (Qx) is switched in between.

In recursive programming, a procedure, function, or method in a computer program calls itself back (i.e., contains a recursion). The mutual call also represents a recursion.
This is the case in my program because the counter resets itself when the ON value is reached due to the recursion. This would not be possible without the flag.

See attached video ...