1、 第 1 页 毕 业 设 计(论文) (说 明 书) 题 目:PLC 在电梯控制系统 的应用 年 月 日 第 2 页 摘摘 要要 目前电梯控制系统主要有三种控制方式:继电器控制系统、PLC 控制系统、 微机控制系统。PLC 控制系统由于运行可靠性高,使用维修方便,抗干扰性强,设 计和调试周期较短等优点,倍受人们重视,已成为目前在电梯控制系统中使用最 多的控制方式。 本文在阐述电梯的结构和可编程控制器的结构和工作原理的基础上,针对 4 层电梯,使用西门子 S7-200 可编程控制器,设计了电梯的控制系统,包括轿内指 令和厅外召唤信号的登记与消除、电梯的选层和定向、电梯的开关门运行、电梯 上下行控
2、制、电梯的指层控制等部分,实现了轿内与各层呼梯指令的记录、电梯 运行方向和选层的控制,电梯上下行和自动开关门、电梯的指层控制等功能。 关键词关键词:四层电梯 控制系统 可编程控制器 第 3 页 Abstract At present the elevator control system mainly has three control modes: Following electric circuit control system, PLC (Programmable Logic Controller) control system, microcomputer control system
3、. PLC control system, because moves the reliability to be high, the use service is convenient, anti-jamming, the design and the debugging cycle is short and so on merits, time is taken seriously the people and so on merits, have become present use most control modes in the elevator control system. T
4、his article elaborated the elevator structure,the structure and the working principle of the programmable logic controllerAim at the elevator of four floors,the writer design this elevator control system by the use of Siemens S7-200 programmable logic controllerThe writer design the elevator control parts, such as, the part of register and cancel the instructions from the cabin, the part of register and cancel the instructions from the station hall, the part of choose station and direct