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11-1
11
Loops and Charts
This chapter introduces structures and explains the basic concepts of charts,
the While Loop, and the For Loop. This chapter also provides activities that
illustrate how to accomplish the following:
•
Learn about different chart modes
•
Use a While Loop and a chart
•
Change the mechanical action of a Boolean switch
•
Control loop timing
•
Use a shift register
•
Create a multiplot chart and customize your trend
•
Use a For Loop
What is a Structure?
A structure is a program control element. Structures control the flow of
data in a VI. G has five structures: the While Loop, the For Loop, the Case
structure, the Sequence structure, and the Formula Node. This chapter
introduces the While Loop and For Loop structures along with the chart and
the shift register. The Case structure, Sequence structure, and Formula
Node are explained in Chapter 12,
Case and Sequence Structures and the
.
While and For Loops are basic structures for programming with G, so you
can find them in most of the G examples as well as the activities in this
manual. You also can find more information on loops in Chapter 19,
Structures, in the G Programming Reference Manual.
For examples of structures, see
G Examples\General\structs.llb
.
For examples of charts, see
G Examples\General\Graphs\
charts.llb
.