الفهرس 
Programmable Logical Controllers andOnly 14 pages are availabe for public view
 |  | from | 294 |  |  |
| | | from | 294 | | |
Abstract
In today’s competitive world, a company must be efficient ,costeffective,
and flexible if it wishes to survive. In the manufacturing and
process industries, this has resulted in a greatly increased demand for
industrial control system in order to streamline operations in terms of
speed, reliability, versatility, and material throughput.
All industrial processes need some form of control system to run
safely and economically.
Established control media, including relay, logic, and computer
systems, can provide effective control of industrial processes and
plant. However, each of the above control media has limitation or
disadvantages.
In recent years a special control computer, called a programmable
controller (PC) or programmable logic controller (PLC), has evolved,
and revolutionized control engineering by combining computing
power and immense flexibility at a reasonable cost.
The present Thesis deals with a survey for the control systems in
different forms especially in industry field shown in chapter one.
Chapter two contains a review about the PLC including history,
development, internal architecture, size and types, choosing,
commissioning of PLC, programming. system layout. input /output
requirements and giving at last some application of using PLCincluding description of control problem, control elements and
program solution.
The Thesis reviews some application fields of PLC and concentrates
on electric traction system in Chapter three, which contains a brief
description of the main parameters of the traction cycle and an
introduction to the versatile system simulator.
Chapter four contains designing; performing and building up of an
integrated laboratory system to simulate any system that may use a
PLC (the versatile system simulator).
Chapter five describes the integrated traction cycle simulator and
contains the prototype model operation and digital simulator results.
Chapter six includes the conclusion and recommendation