I am also newbie about WinCC. I have a HMI project file. Button TCV170 have an event -> Press: InvertBit: Tag(InOut): Show TIRC - 170. I looked at the tag properties of Show TIRC - 170, Connection -> Internal tag.
If I press the Button TCV170, window TIRC170 show up. Where is it come from, because there is no screen TIRC170 in my project?
Can you give some explanation? Thank you.