【導(dǎo)讀】以后都應(yīng)用廣泛且能適應(yīng)多種環(huán)境的可編程控制器來(lái)控制整個(gè)工作流程的方案。勞動(dòng)強(qiáng)度，大大提高了工作人員的工作環(huán)境質(zhì)量。的實(shí)時(shí)監(jiān)控系統(tǒng)功能，更好的使該自動(dòng)生產(chǎn)系統(tǒng)融入到現(xiàn)代工業(yè)控制領(lǐng)域中。

　　

【正文】 通過(guò)各種途徑獲取更詳細(xì)的資料設(shè)計(jì)該控制系統(tǒng)的。當(dāng)然，各位指導(dǎo)老師和同一組的同學(xué)也對(duì)我做了很多的指導(dǎo)和幫助，這對(duì)我能按時(shí)按要求完成整個(gè)系統(tǒng)的設(shè)計(jì)有著很大的作用。 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 38 謝 辭 歷時(shí)幾個(gè)月的努力，在指導(dǎo)老師的指導(dǎo)下，在同學(xué)們的幫助下，在自己通過(guò)各方面查找資料后，我最終完成了基于 PLC 的電鍍生產(chǎn)線控制系統(tǒng)的設(shè)計(jì)。在此，我鄭重的向在此過(guò)程中給予我?guī)椭睦蠋熀屯瑢W(xué)們表達(dá)深深的謝意，同時(shí)也感謝學(xué)校能夠給我們提供這么好的實(shí)驗(yàn)條件，能讓我們不僅僅是在紙張上完成自己的課程設(shè)計(jì)，更是讓我們能親眼看見(jiàn)自己辛苦幾個(gè)月的設(shè)計(jì) 成果。 在設(shè)計(jì)的過(guò)程中我遇見(jiàn)了不少的困難，這些困難不僅僅是靠我們的教材和課堂上面老師教給我們的那些知識(shí)就能解決的，我們必須自己想辦法解決。向老師求教，向同學(xué)們問(wèn)詢，在網(wǎng)絡(luò)上面搜索答案，到圖書館借書，這都是我這次能一次又一次克服這些困難所使用的方法。所以說(shuō)，畢業(yè)設(shè)計(jì)檢驗(yàn)的不僅僅是我們對(duì)專業(yè)知識(shí)的掌握，更是檢驗(yàn)和鍛煉我們解決問(wèn)題和獲取知識(shí)的能力，我認(rèn)為我的這些能力就在這次設(shè)計(jì)中得到了很大的鍛煉。 總之，這此的設(shè)計(jì)教會(huì)了我很多，不僅僅是專業(yè)知識(shí)得到擴(kuò)展，更多的是發(fā)現(xiàn)問(wèn)題，解決問(wèn)題的能力和獲取知識(shí)的能力得到鍛煉。當(dāng) 然，在這個(gè)過(guò)程中我的成長(zhǎng)遠(yuǎn)遠(yuǎn)離不開我尊敬的指導(dǎo)老師段春霞老師和韓英老師，還有我親愛(ài)的同學(xué)們，沒(méi)有他們的幫助我遠(yuǎn)遠(yuǎn)不能得到今天的進(jìn)步。我再次向他們表達(dá)謝意，祝他們身體健康，工作順利！ 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 39 參考文獻(xiàn) [1] 李道霖 . 電氣控制與 PLC 原理及應(yīng)用 . 北京 : 電子工業(yè)出版社 , [2] 孫海維 . SIMATIC 可編程控制器及應(yīng)用 . 北京 : 機(jī)械工業(yè)出版社 , [3] 廖常初 . 可編程控制應(yīng)用技術(shù) . 重慶 : 重慶大學(xué)出版社 , [4] 馮立明 . 電鍍工藝與設(shè)備化學(xué) . 北京 : 北京工業(yè)出版社 , [5] 孫平 . 可編程控制器原理及應(yīng)用 . 北京 : 高等教育出版社 , [6] 常曉玲 . 電氣控制系統(tǒng)與可編程控制器 . 北京 : 機(jī)械工業(yè)出版社 , 2020 [7] 黃北剛 . 工廠電氣控制電路實(shí)例詳解 . 北京 : 化學(xué)工業(yè)出版社 , [8] 方承遠(yuǎn) . 工廠電氣控制技術(shù) . 北京 : 機(jī)械工業(yè)出版社 , 2020 [9] 田瑞庭 . 可編程控制器應(yīng)用技術(shù) . 北京 : 機(jī)械工業(yè)出版社 , 1994 [10] 廖常初主編 .PLC 編程及飲用 . 北京 : 機(jī)械工業(yè) 出版社 , 2020 [11] 西門子公司 . S7200 可編程控制器系統(tǒng)手冊(cè) , 2020 [12] 西門子公司 . S7200 可編程控制器產(chǎn)品目錄 , 2020 [13] 北京亞控自動(dòng)化軟件科技有限公司 . “組態(tài)王”使用手冊(cè) , 2020 [14] 汪志鋒 .可編程控制器原理和應(yīng)用 . 西安 : 西安電子科技大學(xué)出版社 , 2020 [15] 汪曉平 . PLC 可編程控制器系統(tǒng)開發(fā)實(shí)例導(dǎo)航 . 北京 : 人民郵電出版社 , 2020 [16] 張萬(wàn)忠 . 可編程控制器應(yīng)用技術(shù) . 北京 : 化學(xué)工業(yè)出版社 , [17] 周美蘭等 . PLC 電氣控制與組態(tài)設(shè)計(jì) . 北京 : 科學(xué)出版社 , 2020 [18] 李道林主編 .電氣控制與 PLC 原理及應(yīng)用 . 北京 : 電子出版社 , 2020 [19] 李長(zhǎng)久 . PLC 原理及應(yīng)用 . 北京 : 機(jī)械工業(yè)出版社 , [20] 周美蘭等 . PLC 電氣控制與組態(tài)設(shè)計(jì) . 北京 : 科學(xué)出版社 , 2020 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 40 外文資料翻譯 PROGRAMMABLE LOGIC CONTROLLERS INTRODUCTION Control engineering has evolved over time. In the past humans was the main method for controlling a system. More recently electricity has been used for control and early electrical control was based on relays. These relays allow power to be switched on and off without a mechanical switch. It is mon to use relays to make simple logical control decisions. The development of low cost puter has brought the most recent revolution, the Programmable Logic Controller (PLC). The advent of the PLC began in the 1970s, and has bee the most mon choice for manufacturing controls. PLC have been gaining popularity on the factory floor and will probably remain predominant for some time to e. Most of this is because of the advantages they offer. Cost effective for controlling plex systems. Flexible and can be reapplied to control other systems quickly and easily. Computational abilities allow more sophisticated control. Trouble shooting aids make programming easier and reduce downtime. Reliable ponents make these likely to operate for years before failure. LADDER LOGIC Ladder logic is the main programming method used for PLC. As mentioned before, ladder logic has been developed to mimic relay logic. The decision to use the relay logic diagrams was a strategic one. By selecting lad der logic as the main programming method, the amount of retraining needed for engineers and trades people was greatly reduced. Modern control systems still include relays, but these are rarely used for logic. A relay is a simple device that uses a magic field to control a switch, as pictured in Figure . When a voltage is applied to the input coil, the resulting current creates a magic field. The magic field pulls a metal switch (or reed) towards it and the contacts touch, closing the switch. The contact that closes when the coil is energized is called 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 41 normally open. The normally closed contacts touch when the input coil is not energized. Relays are normally drawn in schematic form using a circle to represent the input coil. The output contacts ar e shown with two parallel lines. Normally open contacts are shown as two lines, and will be open (nonconducting) when the input is not energized. Normally closed contacts are shown with two lines with a diagonal line through them. When the input coil is not energized the normally closed contacts will be closed (conducting). Relays are used to let one power source close a switch for another (often high current) power source, while keeping them isolated. An example of a relay in a simple control application is shown in Figure . In this system the first relay on the left is used as normally closed, and will allow current to flow until a voltage is applied to the input A. The second relay is normally open and will not allow current to flow until a voltage i s applied to the input B. If current is flowing through the first two relays then current will flow through the coil in the third relay, and close the switch for output C. This can be read logically as C will be on if A is off and B is on. PROGRAM The first PLC were programmed with a technique that was based on relay logic wiring schematics. This eliminated the need to teach the electricians, technicians and engineers how to program a puter but, this method has stuck and it is the most mon tec hnique for programming PLC today. An example of ladder logic can be seen in Figure . To interpret this diagram imagines that the power is on the vertical line on the left hand side, we call this the hot rail. On the right hand side is the neutral rail. In the figure there are two rungs, and on each rung there are binations of inputs (two vertical lines) and outputs (circles). If the inputs are opened or closed in the right bination the power can flow from the hot rail, through the inputs, to power the outputs, and finally to the neutral rail. An input can e from a sensor, switch, or any other type of sensor. An output will be some device outside the PLC that is switched on or off, such as lights or motors. In the top rung the contacts are normally open and normally clo