How to get number of element of a struct pass to FC variant input

[AC14]

Hi guys, is my first question.

is possible with some function count the number of bit in a struct pass to FC like variant input?

 

ex.:

i have a DB with this struct

 

 

and a FC with this input

I pass sistem struct in "IN_System [Bool]" and i want to dynamic count of element in the struct.

Is it possible??

 

Sorry for my english