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Programmable logic controllers

IEEE Potentials, 1996
The programmable logic controller (PLC) is a special-purpose computer used to control the operation of electromechanical devices. It is special-purpose in the sense that it has been engineered for use in manufacturing environments, where electrical noise and mechanical vibration may be present, and it is programmed using a special-purpose language ...
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Programmable Logic Controllers

ASME 1991 Citrus Engineering Conference, 1991
The use of the programmable logic controller has advanced tremendously since its introduction in the late 1960’s. The programmable logic controller, affectionately known as the PLC in today’s industries, was first introduced as an electrical control relay replacer.
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PROGRAMMABLE LOGIC CONTROLLERS

2004
This chapter will cover the basics of programmable logic controllers (PLCs). PLCscan perform all of the functions of relay-based control systems and much more. Theyhave replaced hard-wired relay-based control systems in most industries because oftheir compact size, ruggedness, and most importantly, their ability to be easily reprogrammed.Changes in a ...
null Gustafson   +2 more
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Programmable Logic Controller Forensics

IEEE Security & Privacy, 2017
Programmable logic controllers (PLCs) automate the control and monitoring of physical industrial and infrastructure processes such as power generation, gas pipelines, and water management. Due to the convergence of networking infrastructure, PLCs can be exposed to cyberattacks over the network with potentially catastrophic consequences.
Irfan Ahmed   +3 more
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Programmable Logic Controllers

2019
The chapter is devoted to programmable logic controllers (PLC). We start from the classification of PLC, their architecture and cycle of operation. Next, the main laws of Boolean algebra are shown. We show the connection between the Boolean algebra and basic logic functions used in programming of PLC.
Alexander Barkalov   +2 more
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