目 录
摘要 ............................................................................................................I
Abstract...................................................................................................II
目录..........................................................................................................III
前言............................................................................................................1
1 电梯概述................................................................................................2
1.1 电梯的定义和种类 .....................................................................2
1.1.1 电梯的定义............................................................................2
1.1.2 电梯的种类............................................................................2
1.2 电梯的主要组成 .........................................................................3
1.2.1 电梯在空间上的组成............................................................3
1.3 国外电梯的情况 .........................................................................4
1.4 国内电梯的情况 .........................................................................5
1.5 电梯技术发展趋势 .....................................................................6
2 PLC 的介绍.............................................................................................8
2.1 可编程控制器(PLC) ..............................................................8
2.2 可编程控制器(PLC)的发展阶段 ..........................................8
2.3 可编程控制器(PLC)发展趋势 ..............................................9
2.4 可编程控制器(PLC)的工作原理 ........................................10
2.5 可编程控制器(PLC)的性能指标 ........................................12
2.6 可编程控制器(PLC)的特点与应用 ....................................13
3 PLC 的选择及其控制系统开发...........................................................16
3.1 可编程序控制器(PLC)的选择 ............................................16
3.1.1 可编程控制器(PLC)的选型 ..........................................17
3.2 可编程控制器(PLC)控制系统硬件开发 ............................17
3.2.1 设计思路..............................................................................17
3.2.2 I/O 点数的分配及机型的选择 ............................................20
3.3 可编程控制器(PLC)控制系统软件开发 ............................21
3.3.1 电梯的三个工作状态..........................................................21
3.3.2 确定系统软件开发方法......................................................22
3.3.3 系统的软件开发过程..........................................................23
4 电梯系统模拟调试及安装..................................................................31
4.1 电梯系统模拟调试 ...................................................................31
4.2 电梯系统安装调试 ...................................................................31