毕业设计（论文）-基于S7-200的全自动洗衣机设计.doc

摘要
本文介绍了采用可编程控制器(PLC)作为核心控制部件的全自动洗衣机的控制系统。通过介绍洗衣机的结构,对全自动洗衣机的控制系统进行了分析,在此基础上提出了基于PLC控制的全自动洗衣机控制方案,并对方案进行了论证。根据洗衣机的工作原理,设计了流程及程序,对按钮、继电器、开关、变频器等其它一些输入/输出点进行控制,实现了洗衣机洗衣过程的自动化。由于洗涤,排水,脱水的时间均由PLC内计数器控制,所以只要改变计数器参数就可以改变时间。具有智能化程度高、安全可靠、方便、灵活等特点。
可编程控制器(PLC)是以计算机技术为核心的通用自动化控制装置,它的功能性强,可靠性高,编程简单,使用方便,体积小巧,近年来在工业生产中得到广泛的应用,被誉为当代工业自动化主要支柱之一。
该设计主要描述了全自动洗衣机的工作原理、控制系统的PLC的造型和资源的配置、控制系统程序设计与调试、控制系统PLC程序。根据全自动洗衣机的工作原理,利用可编程控制器PLC实现控制,说明了PLC控制的原理方法,特点及控制洗衣机的特色。通过本系统的设计,对s7-200 PLC的特点有了深入的理解。全自动洗衣机控制系统利用了s7-200 PLC的特点,对按钮、电磁阀、开关等其它一些输入/输出点进行控制,实现了洗衣机洗衣过程的自动化。充分表现现代家电用品的个性。
关键词:可编程序控制器,洗衣机,全自动
Abstract
This article used programmable controller PLC to realize the pletely automatic control, explained the PLC control principle method, the characteristic and controlled the washer the characteristic. The article during introduction washer structure, carries on the analysis to pletely automatic washer control system, proposed in this foundation based on the pletely automatic washer control plan, and has carried on the proof to the plan, has carried on the design according to the washer principle of work to the procedure and the flow, has the intellectualized degree high, safe reliable and so on the characteristics. To the button, the relay, the switch, the frequency changer and so on other some I/O spot carries on the control, realized the washer to wash clothes the process automation. Because spreads every time lavation, draining water, dehydrated time by PLC in counter control, so long as therefore the change counter parameter may change the time.
PLC is takes core to control devised the calculator technique as the in general use automation control equip puter skills. Its function is strong, the credibility is high, the plait distance is simple, the usage is convenient, the physical volume is cleverly made, in these years, PLC is the extensive application, and drive for contemporary the industrial automation mainly pays one of the pillars.
This design mainly describes the wor