【正文】 eration humanity, process visualization, automatic control field in the increasingly significant role. Through the experiment can be proven, this system applicability is very strong, good stability, accuracy, program development understandable, can adapt to industrial production in constant temperature system requirements. This article mainly introduced the constant temperature and the hardware and software of the system design. Key words ： Temperature Control ； PLC ； Configuration ； MCGS I 目 錄 1 緒論 ........................................................................................................................................ 1 溫度控制系統(tǒng)研究背景 ........................................................................................... 1 可編程控制器概況 ................................................................................................... 2 組態(tài)軟件 ................................................................................................................... 3 組態(tài)的定義 ................................................................................................... 3 組態(tài)軟件的特點(diǎn) ........................................................................................... 3 典型組態(tài)軟件簡(jiǎn)介 ....................................................................................... 4 研究恒溫控制系統(tǒng)的意義 ................................................................................. 5 2 恒溫控制系統(tǒng)的設(shè)計(jì)方案 .................................................................................................. 6 恒溫控制系統(tǒng)的組成 ................................................................................................ 6 恒溫控制系統(tǒng)控制過(guò)程 ............................................................................................ 7 3 硬件電路的設(shè)計(jì) .................................................................................................................... 8 系統(tǒng)的硬件配置 ................................................................................................... 8 PLC 的型號(hào)選擇 ........................................................................................... 8 擴(kuò)展模塊的選擇 ........................................................................................ 9 I/O 地址分配 .......................................................................................................... 12 I/O 電氣接口圖 ...................................................................................................... 13 4 恒溫控制系統(tǒng)軟件設(shè)計(jì) ................................................................................................... 14 PLC 程序設(shè)計(jì)方法 .................................................................................................. 14 FXGP/WIN C 編程軟件使用簡(jiǎn)要說(shuō)明 ................................................................ 14 系統(tǒng)程序設(shè)計(jì) ........................................................................................................ 15 恒溫控制系統(tǒng)主程序流程圖 ..................................................................... 16 PID 調(diào)節(jié) ..................................................................................................... 17 5 MCGS 組態(tài)軟件設(shè)計(jì) ............................................................................................................ 18 MCGS 軟件介紹 ........................................................................................................ 18 組態(tài)軟件組成部分 ...................................................................................... 18 MCGS 的主要特性和功能 ............................................................................. 19 工程的建立 ............................................................................................................ 19 恒溫控制系統(tǒng)工程界面設(shè)計(jì) ................................................................................. 20 恒溫控制系統(tǒng)界面圖 ............................................................................................. 23 [參考文獻(xiàn) ] ........................................................................................................................... 24 致 謝 ........................................................................................................................................ 25 附 錄 ..................................................................................................................................... 26 1 1 緒論 溫度控制系統(tǒng)研究背景 溫度與人們的生存生活生產(chǎn)息息相關(guān)。隨著生產(chǎn)力的發(fā)展，人們對(duì)溫度控制精確度要求也越來(lái)越來(lái)高，溫度控制的技術(shù)也得到迅速發(fā)展。 傳統(tǒng)的溫度控制器多由繼電器組成的，但是繼電