Home > Automation > PLC (Programmable Logic Controller)


Topic under  PLC (Programmable Logic Controller)
Source: www.eod.gvsu.edu 
File size: 220.83 KB
File type: pdf
Last download on: Tue Oct 24, 2017 01:17:29 AM
Short Desciption:
Topics: Objectives: Know general PLC issues To be able to write simple ladder logic programs Understand the operation of a PLC PLC History Ladder Logic and Relays PLC Programming PLC Operation An Example

2.1 INTRODUCTION Control engineering has evolved over time. In the past humans were the main method for controlling a system. More recently electricity has been used for control and early electrical control was based on relays. These relays allow power to be switched on and off without a mechanical switch. It is common to use relays to make simple logical control decisions. The development of low cost computer has brought the most recent revolution, the Programmable Logic Controller (PLC). The advent of the PLC began in the 1970s, and has become the most common choice for manufacturing controls. PLCs have been gaining popularity on the factory floor and will probably remain predominant for some time to come. Most of this is because of the advantages they offer. Cost effective for controlling complex systems. Flexible and can be reapplied to control other systems quickly and easily. Computational abilities allow more sophisticated control. Trouble shooting aids make programming easier and reduce downtime. Reliable components make these likely to operate for years before failure.
Bookmark or share this info on Google+ and leave comment at below :

Bookmark and Share

People who downloaded this also viewed in this sites:

Programmable Logic Controllers : Programming Methods and Applications
Publisher: Prentice Hall | 320 pages | April 21, 2003 | ISBN 0130607185 | PDF | 5 MB This book is designed to help readers develop a good general...

PLC Programming and Ladder Logic
An overview of PLC Programming and the most common PLC Programming Language (Ladder Logic)...

PLC Start-Up and Maintenance
The design of programmable controllers includes a number of rugged features that allow PLCs to be installed in almost any industrial...

    Leave comment :



    Related Free Files

    History of Control History of PLC and DCS... - Download: 295 times
    SLC 500 Instruction Set Reference Manual ... - Download: 428 times
    SIMATIC Standard PID Control Manual... - Download: 762 times
    The Software Environment and Programming of... - Download: 3459 times
    State Machines and Microprocessor Systems ... - Download: 330 times
    LADDER LOGIC... - Download: 1833 times
    PLC Handbook... - Download: 29955 times
    The PLC Hardware Environment... - Download: 2057 times
    Automating Manufacturing Systems... - Download: 6643 times
    PLC Glossary... - Download: 1177 times

    eXTReMe Tracker