6SN1111-0AA00-0FC0

6SN1111-0AA00-0FC0

PLC控制系统的结构组成

PLC控制系统的结构组成主要包括以下部分：

1. 中央处理器(CPU)：作为整个系统的核心，使用的处理器进行信号的处理和控制计算，包括从输入口读取信号、根据输入信号通过编程语言控制输出信号等。

2. 输入/输出模块：输入模块主要是读取外部的数字量或模拟量信号，输入到CPU进行处理，而输出模块则是将CPU处理后的信号输出到需要控制的其他设备进行控制，同时还可以将一些运动或工作状态的反馈信号发送回CPU。

6SN1111-0AA00-0FC0

6SN1111-0AA00-0FC0

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