Programmable Logic Controllers - With Activities Manual and Access
5th Edition
ISBN: 9781259732430
Author: Petruzella
Publisher: MCG
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Question
Chapter 9, Problem 11RQ
Program Plan Intro
Programmable Logic Controller (PLC):
- PLC is a specialized computer used in industrial segments to control machines and process.
- PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.
- The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.
- When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.
- The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling
programming language.
Explanation of Solution
b.
Comparison on standard and safety PLCs with regard to input circuitry:
Standard PLC does not have an internal c...
Explanation of Solution
c.
Comparison on standard and safety PLCs with regard to output circuitry:
A Standard PLC output does not have an intern...
Explanation of Solution
d.
Comparison on standard and safety PLCs with regard to power supplies:
Standard PLCs use normal power suppl...
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Chapter 9 Solutions
Programmable Logic Controllers - With Activities Manual and Access
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