Contents
BridgeVIEW User Manual xii © National Instruments Corporation
PART 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