P L C 类

交通灯毕业设计

目

录

摘要

..................................................................................................................................................................2

第一章

PLC 的特点及应用.........................................................................................................................3

1.1

概述

..................................................................................................................................................3

1.2 PLC 的特点.......................................................................................................................................3
1.3 PLC 的应用.......................................................................................................................................4
2.1 PLC 的分类.......................................................................................................................................5