الفهرس 
GENERAL INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
This report answers basic questions that may be posed by anyone in the Elechical Engineering tield, in how PLCs work and a basic understanding of digital logic.
The questions that will be answered in this report are:
I. What is a PLC?
2. What is ladder logic?
3. What are the different PLC components?
4. How does ladder logic work?
5. How do you program a ladder logic program?
6. How do you choose between a PLC and a DCS? This report provides the reader with information on:
Programmable logic histOlY and the advancement of controls technology along with PLC operation, PLC components, ladder logic programming, Understand the operation of a PLC,To write simple ladder logic programs to enable the reader to develop ladder programs for the logic functions AND, OR, NOR, NAND, NOT, and XOR and Develop program’s methods ladder diagram, functional block diagram and statement list.