Your code is almost impossible to read (and not just because you are using a character set that does not use the ASCII encoding). Here are some suggestions to improve your LabVIEW "style" --
(Almost) Always use the 4-2-2-4 Front Panel pattern (which you do!). Wire Error In to the lower left, Error Out to the lower right.
Never use the "default Icon" when creating a sub-VI. Instead, use the Icon Editor to create an Icon that describes the VI. It could be as simple as a White Square with a Black Border in which you write three (short) lines of text, "Init Flow Params" or "Stop Flow".
Avoid Sequence Structures. Instead, use the Error Line to control the sequence by attaching Error Out from first VI to Error In of second.
When you have a series of VI's that "do one thing" (such as "Set Up A/D"), write a sub-VI (called "Set Up A-to-D") and put the lower-level VIs "inside". Be sure to use the 4-2-2-4 pattern with Error In and Error Out, and make the VI's Icon describe what it does ("Set Up A/D").
