Applications Guide Tracer Graphical Programming - Trane

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Chapter 5 Cooling tower with variable-speed fan example
Summary questions
Answer the following questions to review the skills, concepts, definitions,
and blocks you learned in this chapter. The answers to these questions is
on page 236.
1. The logic contained in the Feedback Alarm block is a combination of
several other blocks. Can you replicate this logic without using the
block itself? Focus on one Feedback Alarm relationship, XOR. First
construct a sequence of operation. Then write a graphical program.
2. How could you reset the Alarm Reset without using the Switch block?
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