It is common in a normal program, Subroutine. Block Diagram Icon, it means the one who has to send information to and through the Connector. In LabVIEW, we will call this Subroutine SubVI.
Subroutine in the program is typical Icon Block Diagram mean one has to send information to and through. Connector in LabVIEW, which we will call Subroutine that SubVI.
A program Subroutine in normal to Icon means Block Diagram one with the input and out through Connector. which, in LabVIEW we call this Subroutine SubVI.