ALL IN ONE PLC LEARNING EBOOKS

ALL IN ONE PLC LEARNING EBOOKS



Automation of many different processes, such as controlling machines or
factory assembly lines, is done through the use of small computers
called a programmable logic controller (PLC). This is actually a
control device that consists of a programmable microprocessor, and is
programmed using a specialized computer language. Before, a
programmable logic controller would have been programmed in ladder
logic, which is similar to a schematic of relay logic. A modern
programmabl logic controller is usually programmed in any one of
several languages, ranging from ladder logic to Basic or C. Typically,
the program is written in a development environment on a personal
computer (PC), and then is downloaded onto the programmable logic
controller directly through a cable connection. The program is stored
in the programmable logic controller in non-volatile memory.



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