compare string to empty inversed

[wasikhetmaar]

Hello,

 

I'm trying to compare a string to an empty string. When the string is NOT empty, a counter should increment. First I tried to do this with a not contact between the compare and the increment, this gave the problem that it kept incrementing. It didn't stopped after one runtime it kept going. Does someone know a better inverse method?

 

One ugly solution that I have found is to increment before the compare and decrement if it is true. Does anyone have better options?

[Gugulanov]

Hi,

There is another way:

In one rung you will have a positive transition contact for test, then function "String length", then compare string length with 0, if length is bigger then zero, increment a tag.

 

Regards