Applications Guide Tracer Graphical Programming - Trane

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Summary questions
Summary questions
Answer the following questions to review the skills, concepts, definitions,
and blocks you learned in this chapter. The answers to these questions
are on page 235.
1. Can a single Variable block read and writethevalueofananalogor
binary variable?
2. What property of an analog or binary variable determines the read or
write capability of the associated Variable block?
3. When the relay control input to the Switch block is true, which input
valuepassestotheoutputoftheblock?
4. Which input port on the Switch block is always binary, regardless of
the Switch block type?
5. For the Fail block to work properly, it must be connected to what types
of blocks?
6. What property must be set in the input configuration for the Fail
blocktoworkproperly?
7. What minor modification to the program pictured in Figure 44 on
page 41 would allow you to remove the ON constant block yet still
provide an input to the Switch block)?
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