A Programmable Logic Controller (PLC), or Programmable Logic Controller, is a ruggedized custom industrial computer used to control manufacturing processes such as assembly lines, machines, robotic equipment, or other applications that require high reliability, ease of programming, and troubleshooting Activity. Considered the father of the PLC, Dick Morley invented the first PLC, the Modicon 084, in 1968 for General Motors.
PLCs can range from small modular devices with dozens of inputs and outputs (I/Os) in a processor-integrated chassis to large modular devices in racks with thousands of I/Os, often with Other PLCs and SCADA systems share the network.
They can be configured for a variety of digital and analog I/O layouts, extended temperature range, immunity to electrical noise, and resistance to vibration and shock. Machine operation control programs are typically stored in battery-backed or non-volatile memory.
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