[knc1]

Originally Posted by ntamas

Hi! There is no {1} there.

http://i.imgur.com/UfPwfl1.png

So should I delete it with - button?

No.
Set its value to: {0} rather than blank.
And then if that does not work, set its value to: {1}
That label reads as if the value was "negative logic", which would be unusual, so try both settings since the sense of the label may be a typo.