Neha Automation offers Programmable Logic Controller. Neha Automation offers complete systems for monitoring and control of industrial plants. Programmable Logic Controller or [PLC] is a digital computer used for automation of electro-mechanical processes such as control of machinery on factory assembly lines, control of amusement rides or control of lighting fixtures. PLCs are used in many different industries and machines such as packaging and semi-conductor machines. Unlike general-purpose computers, the Programmable Logic Controller is designed for multiple inputs and output arrangements, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact. Programs to control machine operation are typically stored in battery-backed or non-volatile memory. A PLC is an example of a real time system since output results must be produced in response to input conditions within a bounded time, otherwise unintended operation will result.