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Contents
BridgeVIEW User Manual xii © National Instruments Corporation
P
ART
II
G Tutorial
Chapter 9
Creating VIs
What is a Virtual Instrument?.............................................................................................. 9-1
How Do You Build a VI?.................................................................................................... 9-1
VI Hierarchy ......................................................................................................... 9-1
Controls, Constants, and Indicators ...................................................................... 9-2
Terminals .............................................................................................................. 9-3
Wires..................................................................................................................... 9-3
Tip Strips ................................................................................................ 9-4
Wire Stretching....................................................................................... 9-5
Selecting and Deleting Wires ................................................................. 9-5
Bad Wires ............................................................................................... 9-6
VI Documentation................................................................................................. 9-9
What is a SubVI?...............................................................................................................9-12
Hierarchy Window.............................................................................................. 9-12
Search Hierarchy .................................................................................. 9-14
Icon and Connector............................................................................................. 9-14
Opening, Operating, and Changing SubVIs........................................................ 9-19
How Do You Debug a VI?................................................................................................ 9-21
Chapter 10
Customizing VIs
Set Window Options........................................................................................... 10-1
SubVI Node Setup .............................................................................................. 10-1
Chapter 11
Loops and Charts
What is a Structure?...........................................................................................................11-1
Charts................................................................................................................................. 11-2
Chart Modes........................................................................................................ 11-2
Faster Chart Updates........................................................................................... 11-3
Overlaid Versus Stacked Plots............................................................................ 11-3
While Loops ...................................................................................................................... 11-4
Mechanical Action of Boolean Switches............................................................ 11-7
Timing................................................................................................................. 11-9
Preventing Code Execution in the First Iteration.............................................. 11-10