When is a conference charged?

[skinner51]

Hey guys, I thank all of you for your posts. I do admit that I left out one bit of info in the original post; the umpire did indeed inform the coach that his return visit would be his 2nd official charged conference. (The first had occurred an inning earlier). Coach was not charged for making the P.C., just his return visit. The PU told the coach he had 1 remaining conference after the coach started to return after confering with the defense out by 2nd base.