07-12-2009, 01:56 PM
I need the seminar report of "Programmable logic controllers".
|
programmable Logic Controllers
|
07-12-2009, 05:01 PM
Abstract:
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),its a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or lighting fixtures,its act like a real time system since output results must be produced in response to input conditions within a bounded time
read more
http://eod.gvsu.edu/~jackh/books/plcs/ch..._intro.pdf
http://en.wikipediawiki/Programmable_logic_controller
http://festo-didacticov3/media/customers/1100/093311_web_leseprobe.pdf
|
« Next Oldest | Next Newest »
|
