Rockwell PLC在电梯自动控制系统中的应用
关键词： 可编程序控制器，电梯自动控制系统，过程控制
Automatic control system in the elevator application
Abstract: Programmable Logic Controller (Pogrammable Logic Controller, PLC) is a microprocessor-based general industrial control devices. Is a digital electronic computing operating system, designed for use in industrial environment applications. It uses a programmable memory, used in its internal memory to perform logical operations, sequence control, timing, counting and arithmetic operations such as operating instructions, and through digital, analog input and output, control various types of machinery or production processes. It has a wide range of applications, powerful, easy to use features, has been widely used in various mechanical equipment and production process automatic control system, PLC in civil and home automation applications has also been a rapid development. In this paper, the actual project - Elevator automatic control system for the project background, first introduced the structure and elevator Rockwell PLC automatic control system, and then from the hardware and software design and other aspects in the elevator elaborate Rockwell PLC automatic control system application .
Keywords: programmable logic controller, elevator automatic control systems, process control
目 录
1 研究背景 1
2 电梯简介 2
2.1 电梯的起源和发展 2
2.2 电梯的分类 3
2.3 电梯组成 3
2.3.1 曳引系统 3
2.3.2 导向系统 3
2.3.3 轿厢 3
2.3.4.门系统 4
2.3.5.重量平衡系统 4
2.3.6.电力拖动系统 4
2.3.7.电气控制系统 4
2.3.8.安全保护系统 4
2.4 电梯的工作原理 4
3 可编程控制器 5
3.1 可编程控制器的定义 5
3.2 可编程控制器的发展 5
3.3 可编程控制器的结构 6
3.4 可编程控制器的特点 7
3.4.1可靠性高，抗干扰能力强 7
3.4.2编程简单，使用方便 7
3.4.3控制程序可变，具有很好的柔性 7
3.4.4功能完善 7
3.4.5扩充方便，组合灵活 7
3.4.6减少了控制系统设计及施工的工作量 8
3.4.7体积小、重量轻，是“机电一体化”特有的产品 8
3.5 可编程控制器的应用领域 8
3.6 可编程控制器的工作原理 9
4 硬件系统设计 11
4.1 控制要求分析 12
4.2 确定I/O点数 12
4.3 PLC控制系统的I/O点数分配 13