Now i get it and also understand where the Bug lies.
Thanks all together

Thank you boskid again for the explanation.
But to understand how the Selector Combinator "Count Input" should work :
If you take a look at my examples "Train Stop", i should expect the Signal at the Arithmetic Combinators Input 10 "Train Stations", right?

Thanks

Thanks Tertius for the explanation.
To clear things up i made it more easy now with "Train Stop". See the attached Screenshots.

The first Screenshot Shows that 10 "Train Stop" are in the Network. The Roboport Reads "Read logistic Network Contents".
The Second one shows that the Selector Combinator ...

Thank you so much for your Reply!
But i still do not get it.
If the value 94 in the selector Combinator shows the actual number of arithemtic combinators coming from the roboport, then why does the value 179 show the actual number of distinct signals coming from the Roboport?
My arithmetic ...

Hello all together,
i need some help with understanding the Selector Combinator.
My Problem is, that the Selector Combinator shows the right Count Input when connected to an Roboport Hub, but if i connect it to another combinator, the input is wrong. So what am i doing wrong here? I really do not ...