可编程逻辑控制器

中文翻译
可编程逻辑控制器(中文4500字,英文2900字)
一个可编程逻辑控制器（PLC）或可编程控制器是一种数字式计算机，用于自动化机电工艺，如机械工厂的组装线，游乐设施，照明灯具的控制。 PLC用于在许多行业和机械。与通用计算机，PLC是专为多个输入和输出安排，扩展级温度范围，电噪声的免疫力和抗振动和冲击。通常存储在电池后备或非易失性存储器中的程序来控制机器操作。一个PLC是一个实时系统的一个例子，因为输出结果必须出示有界的时间内响应输入条件，否则意外操作导致。

英文原文
Programmable logic controller
A programmable logic controller (PLC) or programmable controller is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or lighting fixtures. PLCs are used in many industries and machines. Unlike general-purpose computers, the PLC 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.