毕业设计 全自动煮饭机的PLC设计.docVIP

全自动煮饭机的PLC设计 摘 要 全自动煮饭机的控制系统是由PLC设计的，它能根据使用者需求设定控制量。可编程控制器是在计算机技术、通信技术和继电器控制技术的发展基础上开发起来的，现已广泛应用于工业控制的各个领域。它以微处理器为核心，用编写的程序进行逻辑控制、定时、计数和算术运算等，并通过数字量和模拟量的输入/输出来控制机械设备或生产过程。如今，PLC在我国各个工业控制领域中的应用越俩越来越广泛。在就业竞争日趋激烈的今天，掌握PLC设计和应用是从事工业控制研究技术人员必须掌握的一门专业技术。本文主要应用PLC技术设计出一套全自动煮饭机。它轻松的解决了人们在日常生活中遇到的诸如加工米饭时间长，不能离开人等等难题。本论文共分五章。第一章是绪论，简要介绍可编程控制器的和PLC的控制系统的基础知识。第二章介绍全自动煮饭机控制系统的plc选型和资源配置。第三章介绍全自动煮饭机控制系统程序设计和调试。第四章介绍全自动煮饭机控制系统PLC程序。第五章是设计小结。 关键词 自动煮饭机,可编程控制器，s7-200，step7-micro  ABSTRACT The control system of the full-automatic cooking machine is designed by PLC, it can follow users demand and establish the controlling amount . The programmable controller is developed on the development foundations of computer technology , communication and relay control technology, have already applied to each field of industrial control extensively now. It regards microprocessor as the core, carries on logic control , timing , counting and arithmetic operation ,etc. with the procedure written, and it is through figure amount and inputs of analog quantity /fail it if coming out , for mechanical equipment or production process. Nowadays, PLC two more and more extensive in our country each industry application of the controlled field. Today, employment is fierce day by day in competition , grasp PLC design and application to engaged in industrial control research a professional technique that technical staff must know. This text mainly employs PLC technology to design a set of full-automatic cooking machines. For example what its relaxed settlement people met in daily life processes the time of rice long, can leave difficult problems such as people ,etc. . This thesis is divided into chapter five together. Chapter one is introduction, the rudimentary knowledges of the control systems of ones that introduce the programmable controller briefly and PLC. Chapter two introduces plc selecting type of the control system of the full-automatic cooking machine and resource distribution. Chapter three r