目

录

前

言

摘

要····································································2

绪

论····································································3

0.1 选题背景·································································3

0.2 方案的比较和论证 ·······················································3
第 1

章电梯概述·····························································4

1.1 电梯的发展简史···························································4

1.1.1 电梯的起源·····························································4

1.1.2 电梯技术发展趋势·······················································5

1.2 电梯的基本结构···························································6

1.3 电梯的类型 ······························································9
第 2

章可编程控制器简介·····················································10

2.1 PLC 的特点·······························································10

2.2 PLC 控制电梯的优点·······················································10
第 3

章三层楼电梯 PLC 控制系统设计···········································11

3.1 电梯的控制要求·························································11

3.2 PLC 型号选择·····························································12

3.3 电梯 PLC I/O 配线表·······················································12

3.4 PLC 输入输出接线示意图···················································13

3.4.1 硬件的设计和选择······················································14

3.4.2 程序设计思路··························································15

3.4.3 三层楼电梯梯形图程序··················································16

3.4.4 三层楼电梯指令表·····················································18

3.4.5 电梯的安装与调试运行·················································20

结

论 ·································································20

致

谢···································································23

参考文献···································································23