【正文】
arly days also appeared matrix sequence controller and the transistor logic control system, because the device is big, the function is less, there are so many shortings, although in can increase control system of general and flexibility, but were not widely should. PLC programmable controller is simple in structure, convenient programming and high reliability etc, are widely used in industrial process and the location of the automatic control. According to the statistics, the programmable controller is used in the industrial automation devices a kind of most equipment. Experts think, programmable controller will be the major means of industrial control and important one of the foundation of the equipment. Due to the use of PLC has the characteristics of strong adaptability to the environment, and the internal timer is very rich in resources, pure water filling machine development soon, have already by manual filling development realize automatic mechanical filling, and automation level is increasing day by day. Along with the science and technology and the development of production, now more and more will PLC in the filling machine system. Key Words: The system of relay contact control、PLC、Filling machine、Automatic controliii / 31目錄前言 ...................................................................................................................................1第一章 概述 .....................................................................................................................2 本文主要研究?jī)?nèi)容 .................................................................................................2 課題研究意義 .........................................................................................................2第二章 純凈水灌裝機(jī)結(jié)構(gòu)功能分析及其主要工藝流程 .............................................3 純凈水灌裝機(jī)結(jié)構(gòu)功能分析 .................................................................................3 純凈水灌裝機(jī)的主要工藝流程 .............................................................................4第三章 設(shè)備主要組成部分 .............................................................................................5 沖洗裝置 .................................................................................................................5 灌裝機(jī)構(gòu) .................................................................................................................7 封蓋機(jī)構(gòu) .................................................................................................................9 星輪傳動(dòng)機(jī)構(gòu) .......................................................................................................11 純凈水灌裝機(jī)的技術(shù)特點(diǎn)分析 ...........................................................................11第四章 PLC 相關(guān)知識(shí) ...................................................................................................13 PLC 的歷史和發(fā)展 ...............................................................................................13 PLC 的特點(diǎn)與應(yīng)用 ...............................................................................................13 PLC 的工作原理 ...................................................................................................15第五章 控制系統(tǒng)的硬件設(shè)計(jì) .......................................................................................16第六章 控制系統(tǒng)的軟件設(shè)計(jì) .......................................................................................18 S7200 PLC 編程軟件(STEP 7 MICRO WIN SP3)使用方法 .................................18 梯形圖及元件選擇 ...............................................................................................18 程序調(diào)試與分析 ...................................................................................................22第七章 結(jié)論 ...................................................................................................................25致 謝 .............................................................................................................................26參考文獻(xiàn) .................