what is PLC?

Answer 1

THe PLC is a "Programmable Logic Controller." It is an industrial grade computer made to survive rough handling and un-airconditioned temperatures. It is programmed in a simple pictorial language that was designed to be usable by electricians not just by trained programmers. It is usually used for control tasks on machinery or in factories. It runs fast and can do logic, timing, and math. It can report its status on serial data links.

Answer 2

Programmable logic controller, uses the ladder and gates system. used primarily in manufacturing companies on the assembly lines for controlling speed of products being made. look at General Motors prime example

Answer 3

I think you mean 'Programmable Logic Controller'. Basically it's a microcontroller chip interfaced to various kinds of relays, input sensors, etc. that you can program symbolically using the familiar 'ladder logic' symbols used in process control drawings.

HTH ☺

Answer 4

programmable logic controller

a manufacturing process computer that allows input from process equipment (such as flowmeters and whatnot) and output to process equipment (such as valves and pumps)

Answer 5

Depends where you see it. If it is in a company name I think it means public liability company.