Page 324 - Programmable Logic Controllers, Fifth Edition

14

Process Control, Network

Systems, and SCADA

Coaxial

Twisted pair
Wireless system
Fiber optic

Chapter Objectives

After completing this chapter, you will be able to: This chapter introduces the kinds of industrial
processes that can be PLC controlled. SCADA
• Discuss the operation of continuous process, batch
production, and discrete manufacturing processes is such a process. Different types of control sys-
• Compare individual, centralized, and distributive tems are used for complex processes. These
control systems control systems may be PLCs, but other control-
• Explain the functions of the major components of a lers include robots, data terminals, and comput-
process control system ers. For these controllers to work together, they
• Describe the various functions of electronic HMI screens must communicate. This chapter will discuss the
• Recognize and explain the functions of the control different kinds of industrial processes and the
elements of a closed-loop control system means by which they communicate.
• Explain how on/off control works
• Explain how PID control works
• Identify the levels of an industrial network
• Discuss the different types of network architecture and
protocols
• Describe a typical SCADA application

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