2015 届 本 科生毕业论文 存档编号
湖北文理学院物理与电子工程学院
毕 业 论 文（设计）
论文题目：基于PLC和MCGS的四层电梯控制系统
English Topic: The Four Layer Elevator Control System Based On MCGS and PLC
基于PLC和MCGS的四层电梯控制系统
摘要：本毕业设计上位机利用组态软件 MCGS设计监控系统，下位机采用PLC来控制,并用，设计出一个自动化、稳定可靠、易操作的控制系统。控制系统采用模块化设计，包括控制系统硬件设计、控制系统软件设计、组态软件的组态画面设计。其中系统硬件设计主要包括PLC的选型、I/O地址分配、PLC硬件I/O接线；系统的软件设计主要是利用GX-Works2来完成梯形图的编程与调试；组态界面的设计主要包括用户窗口的建立；实时数据库的建立；以及运行脚本程序的编写等。电梯的主要功能模块包括响应轿厢内外呼叫按钮并到达相应的楼层、轿厢当前楼层显示模块、电梯门自动开关模块、内外呼叫按钮和开关门信号的输入与消除模块等。最后通过制作上、下位机的通讯协议以达到上位机实时监控的目的。
关键词：PLC；MCGS；四层电梯；控制系统
I
The Four Layer Elevator Control System Based On
MCGS and PLC
Abstract：Due to the traditional relay, contactor type elevator control system more and more clearly showed the unsolved problem of a short life, the line repair complex,. because of its easier use, high reliability and simple maintenance, PLC get the mass Pro resistance. This graduation design based on MCGS configuration software and PLC to control, and use the MCGS to PC for real-time monitoring, designed a automation, stable and reliable, easy operation of the control system. Modular design is adopted in the control system, including control system hardware design, software design of the control system, the screen configuration software design. The hardware design mainly includes the selection assignment of I/O address, PLC hardware I/O wiring PLC. Elevator main function in response to both inside and outside the car call button and reach corresponding floors, car current floor display module, elevator door automatic switch module, inside and outside call button and open and close the door and
elimination
of
signal
input
module
etc.. Complete
the
design
of four layer elevator control system based on MCGS configuration software and PLC.
Keywords：Programmable Logical Controller; MCGS; Four elevator; Control system
II
目 录
1绪论............................................................................................................................. 1
1.1前言................................................................................................................... 1 1.2基于PLC的电梯在国内外的发展趋势 ......................................................... 1 1.3研究的主要内容及设计成果的应用价值....................................................... 3 2基于PLC四层电梯控制系统的概述 ....................................................................... 4
2.1可编程控制器的概述....................................................................................... 4 2.2 四层电梯控制系统的概述.............................................................................. 7 2.3 四层电梯控制系统的具体控制要求.............................................................. 9 3. 四层电梯控制系统的硬件设计............................................................................. 11
3.1 四层电梯控制系统的工作流程.................................................................... 11 3.2PLC的选型——三菱FX-2N PLC的简介和特点分析................................ 12 3.3 硬件设计的I\\O地址定义和I\\O地址分配表 ............................................. 13 4 四层电梯控制系统的软件设计............................................................................ 15
4.1 GX-Works2软件简介 ................................................................................. 15 4.2 利用GX-Works2编写PLC梯形图程序 ................................................... 15 5 四层电梯控制系统的组态画面的设计.................................................................. 20
5.1 组态软件MCGS6.2的简介 ......................................................................... 20 5.2 用户组态画面的建立.................................................................................... 20 5.3 上位机组态画面运行.................................................................................... 26 5.4 PLC设备与组态数据对象的链接 ............................................................. 27 参考文献...................................................................................................................... 29 附 录.......................................................................................................................... 30 致 谢.......................................................................................................................... 41
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