发布时间 : 星期日 文章基于PLC控制系统的水塔水位设计更新完毕开始阅读51a166ae541810a6f524ccbff121dd36a32dc4a2
摘 要
随着科技的发展，无论在日常生活中，还是在工农业发展中，PLC具有广泛的应用。
PLC的一般特点：抗干扰能力强，可靠性极高、编程简单方便、使用方便、维护方便、设计、施工、调试周期短、易于实现机电一体化。PLC总的发展趋势是：高功能、高速度、高集成度、大容量、小体积、低成本、通信组网能力强。本水塔水位控制系统采用PLC为控制核心，具备开启和全部停止功能，这是一种PLC控制的自动调节控制系统。应用此控制系统能显著提高劳动效率，减少劳动强度。但是随着世界人口的不断增长，人们生活用水的增加，以往采用的继电器水塔水位自动控制系统由于频繁操作会产生机械磨损，不方便维护和更新，已经不能满足人们的实际需求，本文采用的是PLC可编程控制器作为水塔水位自动控制系统核心，对水塔水位自动控制系统的功能进行性进行了需求分析。主要实现方法是通过传感器检测水塔水位的实际水位，将水位具体信息传至PLC构成的控制模块，经A/D转换后，进行数据比较，来控制抽水电机的动作，同时进行数据还原，显示水位具体信息，如果水位低于或高于某个设定值是，就会发出危险报警的信号。本文以一个水塔水位控制系统的设计过程，给出了基于PLC水塔水位控制系统的设计好实现的具体过程。
关键词：高集成度，水位控制，组态，水塔水位 ，PLC
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重庆科技学院高等教育自学考试本科毕业论文 英文摘要
Design of water level control system based on PLC water tower
ABSTRACT
With technological development, both in daily life, or the industrial and agricultural development, plc have wide application. PLC general features: strong anti-jamming capability, high reliability, programming is simple and convenient, easy operation and maintenance convenience, design, construction, commissioning period is short, easy to realize the electromechanical integration. PLC general development trend is: high function, high speed, high level of integration, large capacity, small volume, low cost, communication networking capability is strong. This water tower water level control system adopts PLC as control core, with open and full stop functions，this is a kind of PLC automatic adjustment of the control system. Application of this control system can significantly improve the work efficiency and reduces labor intensity. But with the growing world population, it is the increase in water, relay towers used in the past, the water level automatic control system operation due to the frequent cause mechanical wear, convenient maintenance and updating can no longer meet the actual needs of the people, the paper used programmable controller as a series of small water tower water level automatic control system core, the water level of the tower the functions of automatic control system of the requirement analysis. Main achieved is through the actual water level sensor detects the water tower, specific information will be transmitted to the water level control module consisting of PLC, the A / D conversion, to compare data, to control the pumping action of the motor, while data reduction, the indicated level specific information, if the water level lower or higher than a set value, we will send the hazard warning signal. In this paper, a water tank level control system design process, the water tower level control system based on PLC design a good implementation of the specificprocess.
Key words： The high level of , Water level control,DCS, Water level PLC
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重庆科技学院高等教育自学考试本科毕业论文 目录
目 录
中文摘要 ................................................................................................................ I 英文摘要 .............................................................................................................. II 1 绪 论 ............................................................................................................... 1
1.1研究背景 ......................................................................................................................................... 1 1.2研究的目的及意义 ......................................................................................................................... 2 1.3国内外发展现状 ............................................................................................................................. 2
2 PLC简介 .......................................................................................................... 4
2.1可编程控制器的产生 ..................................................................................................................... 4 2.2 PLC的发展 ..................................................................................................................................... 5 2.3 PLC的未来展望 ............................................................................................................................. 5 2.4 PLC的特点 ..................................................................................................................................... 6 2.5 PLC的组成 ................................................................................................................................... 7
2.5.1 中央处理单元(CPU) ......................................................................................................... 7 2.5.2 存储器............................................................................................................................... 8 2.5.3 输入/输出模块 ................................................................................................................... 8 2.5.4 扩展模块............................................................................................................................. 9 2.5.5 编程器................................................................................................................................. 9 2.6 PLC的工作原理 ........................................................................................................................... 10 2.7 梯形图程序设计 .......................................................................................................................... 10
3 水塔水位控制系统PLC硬件设计 .............................................................. 12
3.1 水塔水位控制系统设计要求 ...................................................................................................... 12 3.2 水塔水位控制系统主电路 ........................................................................................................ 12 3.3 I/O接口分配 ........................................................................................................................... 13
3.3.1 列出水塔水位控制系统PLC的输入/输出接口分配表 ................................................. 13 3.3.2 水塔水位控制系统的I/O设备 ..................................................................................... 14
4 水塔水位控制系统PLC软件设计 ............................................................ 15
4.1 程序流程图 ................................................................................................................................ 15 4.2 梯形图程序设计及工作过程分析 ............................................................................................ 16
4.2.1 工作过程 ......................................................................................................................... 17 4.2.2 水塔水位控制系统梯形图 ............................................................................................. 17
5 水塔水位控制系统的组态设计 .................................................................. 21
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重庆科技学院高等教育自学考试本科毕业论文 目录
5.1 组态软件概述 ............................................................................................................................ 21 5.2 组态软件在我国的发展 ............................................................................................................ 21 5.3 组态软件的功能特点发展方向 ................................................................................................ 22 5.4 建立WINCC组态画面 ................................................................................................................ 22
5.4.1 WINCC组态画面 .............................................................................................................. 22 5.4.2 画面演示 ......................................................................................................................... 23
6 结 论 ........................................................................................................... 31
致 谢 ............................................................................................................. 32 参考文献 ............................................................................................................. 33 论文原创性声明
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