【正文】 。人們高度評價 PLC及其網(wǎng)絡的重要性，認為它是現(xiàn)代工業(yè)自動化的三大支柱之一。本文所用到的產(chǎn)品是 S7200 系列的 PLC 作系列電梯的。輸入為： 轎內指令； 廳外指令； 門區(qū)感應； 手動開關門； 樓層感應。程序說明如下： 電梯在三層時下行 表 LDoneseletq 一層內選擇 南洋職業(yè)學院畢業(yè)論文 26 0twoseletq 或二層內選擇 0oneupq 或一層上呼 0twodownq 或二層下呼 0twoupq 或二層上呼 ANseatq 在三層位置時 置三層下行位 電梯三層時下行 表 有四層下行位 或有三層下行位 或有二層下行位 AN up 同時無上行 =down 電梯下行 . 電 梯上行程序設計 以電梯在二層上行情況為例。系統(tǒng)調試包括硬件調試和軟件調試兩個部分。 (2) 輸入端子八個為一組，公用一個 COM 端。程序輸入完成后，用 CPU 的下拉菜單或工具條中編譯快捷按鈕對程序進行編譯，編譯后在顯示器下方的輸入窗口顯示編譯結果，并能明確的指出錯誤的網(wǎng)絡段，可以根據(jù)錯誤的提示對程序進行修改，然后再編譯，一直到編譯無誤。這時閉合觸點和通電線圈內部顏色變藍。 本系統(tǒng)主要以 PLC為核心，利用 PLC的強大的控制功能，實現(xiàn)了對升降電梯的控制。原來的接線不需改變，軟件上只需增加相應樓層的功能，要改動的地方也較少。 通過本設計，我學習到了很多東西，在工作的細心上也得到了提高。 南洋職業(yè)學院畢業(yè)論文 30 致謝 本論文是在 侯紅科 老師的指導下完成的。在此，感謝老師在工作和生活上給予的指導和關心。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. 南洋職業(yè)學院畢業(yè)論文 31 If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。s 150th anniversary celebrations and will attend City39。s governing body, has also ordered an immediate investigation into the referee39?；蛟S是愧疚于自己似乎把轉瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。t remember his appearance. 童年時，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進，會越來越發(fā)現(xiàn)，那些東西根本就可有可無；初中時，以為要有一場暗戀才意味著真正的成長，但三年過去后，自己心平氣和的寫同學錄的時候，突然就發(fā)現(xiàn)是不是真正的成長了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個句點，但畢業(yè)晚會的時候最終還是被梗塞在了咽喉，后來再次站 在他曾經(jīng)揮汗如雨的球場，看著他投過籃球的球框時，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。想要的，不想要的，界限明確，好像沒有什么可以撼動自己。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻，天空是陰暗的，空氣里有著剛下過雨之后的清新因子。s not needed. Instead, he plans to deploy his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. Even if everything goes as planned, it won39。 Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( 南洋職業(yè)學院畢業(yè)論文 33 miles/ kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence. The supersonic descent could happen as early as Sunda. The weatheThe balloon will slowly drift to the edge of space at 120,000 feet ( Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform. Below, the Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he39。 From the corner at the beginning of deep friendship。嫌惡過自己的怯懦，最終卻發(fā)現(xiàn)有很多 緣分 ，有很多錯過，好像冥冥之中真的已經(jīng)注定。 A person39。 Then in high school, think don39。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the sam