基于plc的五层电梯控制系统的设计.pdf
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摘 要
随着大型和巨型楼宇的兴建 电梯得到了快速的发展。在电,
梯逻辑控制方面 , 由于可编程控制器 (PLC) 具有编程软件采用易
学易懂的梯形图语言、控制灵活方便、抗干扰能力强、运行稳定
可靠、易操作、维修方便等特点 ,使可编程控制器(PLC) 已全面代
替原来的继电器控制。 将可编程序控制器 (PLC) 应用于电梯进行
逻辑控制,大大提高了电梯可 靠性、可维护性以及灵活性,延
长了使用寿命 .,同时缩短了电梯的开发周期。这种电梯控制系
统较原有电梯控制系统可以更容易的完成更为复杂的控制任务,
其许多功能是传统的继电器无法实现的。编程逻辑控制器
(Programmable Logic Controller ,PLC ),它是一种专用于工业
控制的计算机,其硬件结构基本上与微型计算机相同, 它采用
一类可编程的存储器,用于其内部存储程序,执行逻辑运算、顺
序控制、定时、计数与算术操作等面向用户的指令,并通过数字
或模拟式输入/输出控制各种类型的机械或生产过程。
围绕这个目标,本文首先介绍了电梯的基本结构, 接着论述
了各主要环节的控制部分以及控制要求,然后着重介绍了基于西
门子S7-200 CPU224 PLC 的电梯控制系统程序开发过程,最后通
过实验装置反复调试运行以及仿真。
经测试仿真调试,该基于PLC 的电梯控制系统实现了预期的
功能,圆满完成了此次毕业设计的任务。通过这次锻炼,我积累
了宝贵的经验,为以后的工作打下了良好的基础。
关键词:可编程控制器; 电梯控制; s7-200
Abstract
With the construction of large and giant buildings, elevators have
been rapid developed. In the elevator logic control, programmable logic
controller (PLC) whose programming software ladder language is easy
to learn and easy to understand, with its feature of control flexibility,
anti-interference ability, stable and reliable, easy to operate, easy to
maintain , programmable controller (PLC) has been fully replace the
original relay control. Its applied to the elevator logic control, greatly
improved the elevator reliability, maintainability, and flexibility to
extend the service life, while reducing the development cycle of the
elevator. Compared with the original elevator control system , the
elevator control system can complete more complex control tasks more
easily, many of its functions can not be achieved by conventional
relays. PLC, which is dedicated to the industrial control computer, the
hardware structure is the same as microcomputer, it uses a
programmable memory for its internally stored program, which can
perform the logical, sequential control, timing, counting and arithmetic
operations wh
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