Applications Guide Tracer Graphical Programming - Trane
Applications Guide Tracer Graphical Programming - Trane Applications Guide Tracer Graphical Programming - Trane
® Chapter 3 Modifying the exhaust fan program 46 CNT-APG001-EN
® Chapter 4 Cooling tower with two-speed fan example This chapter and the chapters that follow build upon your fundamental skills and knowledge of Tracer graphical programming (TGP) by stepping you through the writing of graphical programs of increasing complexity. In this chapter, you will create a program to control a cooling tower with a two-speed fan. Note: Many of the chapters in this book build on previous chapters, so be sure to complete the chapters in the order presented. See “About this book” on page 1 for additional instructions. What you will learn In this chapter, you will learn a variety of skills, concepts, and definitions. Skills You will learn how to better interpret a sequence of operation and transfer it to a working graphical program. Concepts and definitions You will understand the following concepts and definitions: • Time Delay blocks • Expandable blocks • Math blocks Blocks You will learn how to use the following blocks: • Delay on Start • Add • Less Than or Equal • Latch CNT-APG001-EN 47
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®<br />
Chapter 4<br />
Cooling tower with<br />
two-speed fan example<br />
This chapter and the chapters that follow build upon your fundamental<br />
skills and knowledge of <strong>Tracer</strong> graphical programming (TGP) by stepping<br />
you through the writing of graphical programs of increasing complexity.<br />
In this chapter, you will create a program to control a cooling tower with a<br />
two-speed fan.<br />
Note:<br />
Many of the chapters in this book build on previous chapters, so<br />
be sure to complete the chapters in the order presented. See<br />
“About this book” on page 1 for additional instructions.<br />
What you will learn<br />
In this chapter, you will learn a variety of skills, concepts, and definitions.<br />
Skills<br />
You will learn how to better interpret a sequence of operation and transfer<br />
it to a working graphical program.<br />
Concepts and definitions<br />
You will understand the following concepts and definitions:<br />
• Time Delay blocks<br />
• Expandable blocks<br />
• Math blocks<br />
Blocks<br />
You will learn how to use the following blocks:<br />
• Delay on Start<br />
• Add<br />
• Less Than or Equal<br />
• Latch<br />
CNT-APG001-EN 47
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