PLC的應用外文文獻翻譯、中英文翻譯、外文翻譯

Application of PLC PLC is one kind specially for the digital operation operation electronic installation which applies under the industry environment designs. It uses may the coding memory, uses for in its internal memory operation and so on actuating logic operation, sequence operation, time, counting and arithmetic operation instructions, and can through digital or the simulation-like input and the output, controls each type the machinery or the production process. PLC and the related auxiliary equipment should according to form a whole easy with the industrial control system, easy to expand its function the principle to design.” In the 1970s the last stage, the programmable controller entered the practical application development phase, the computer technology has introduced in comprehensively the programmable controller, causes its function to have the leap. The higher operating speed, the subminiature volume, the more reliable industry antijamming design, the simulation quantity operation, the PID function and the extremely high performance-to-price ratio has established it in the modern industry status. In the early-1980s, the programmable controller has obtained the widespread application in the advanced industrial nation. This time programmable controller develops the characteristic is large-scale, the high velocity, the high performance, the product seriation. This stages another characteristic is in the world produces the programmable controllers country to increase day by day, the output rises day by day. This symbolizes that the programmable controller marched into the mature stage. The 20th century last stage, the programmable controllers development characteristic was even more adapts in the modern industry need. From the control scale, this time has developed the large-scale machinery and subminiature machine； From the control, was born various special function unit, used in the pressure, the temperature, the rotational speed, the displacement and so on all kinds of control situation； From product necessary ability, has produced each kind of man-machine contact surface unit, the correspondence unit, caused to apply the programmable controllers industrial control equipment necessary to be easier. At present, the programmable controller in domain and so on machine manufacture, petroleum chemical industry, metallurgy steel and iron, automobile, light industry applications obtained the considerable development. Our country programmable controllers introduction, applies, the development, the production to follow the reform and open policy to start. At first has used the programmable controller massively in the introduction equipment. Then expanded the PLC application unceasingly in each kind of enterprises production equipment and the product. At present, our country have been possible to produce the middle and small scale programmable controller. East Shanghai the room electricity Limited company produces the CF series, Hangzhou engine bed electrical equipment factory productions DKK and D series, Dalian Aggregate machine-tool Research institute produces S series, the Suzhou Electronic accounting machine Factory productions YZ series and so on many kinds of products have had certain scale and have obtained the application in the manufactured products. In addition, the non-flowers of tin light company, Chinese-foreign joint ventures and so on Shanghai Township Island Company are also our country quite famous PLC Manufacturers. May anticipate that along with our country modernization processs thorough, PLC will have the broader application world in our country. Uses the manual operation in view of the YNL draw die machine electric control system, the existence operation is complex, the operation requests high, needs specially shortcomings and so on operators, has designed PLC the control system. Has given the electrical machinery main return route, the PLC periphery wiring diagram； Has established the systems operation trapezoidal chart and the instruction list； And to this system key element shaping. After the improvement control system has realized the entire system board process automation, not only raised the production efficiency, but also has saved the labor force, reduced the production cost, may obtain a greater economic efficiency. PLC 的應用 PLC 是一種專門為在工業(yè)環(huán)境下應用而設計的數字運算操作的電子裝置。它采用可以編制程序的存儲器，用來在其內部存儲執(zhí)行邏輯運算、順序運算、計時、計數和算術運算等操作的指令，并能通過數字式或模擬式的輸入和輸出，控制各種類型的機械或生產過程。 PLC 及其有關的外圍設備都應該按易于與工業(yè)控制系統(tǒng)形成一個整體，易于擴展其功能的原則而設計。” 20 世紀 70 年代中末期，可編程控制器進入實用化發(fā)展階段，計算機技術已全面引入可編程控制器中，使其功能發(fā)生了飛躍。更高的運算速度、超小型體積、更可靠的工業(yè)抗干擾設 計、模擬量運算、 PID 功能及極高的性價比奠定了它在現代工業(yè)中的地位。 20 世紀 80 年代初，可編程控制器在先進工業(yè)國家中已獲得廣泛應用。這個時期可編程控制器發(fā)展的特點是大規(guī)模、高速度、高性能、產品系列化。這個階段的另一個特點是世界上生產可編程控制器的國家日益增多，產量日益上升。這標志著可編程控制器已步入成熟階段。 20 世紀末期，可編程控制器的發(fā)展特點是更加適應于現代工業(yè)的需要。從控制規(guī)模上來說，這個時期發(fā)展了大型機和超小型機；從控制能力上來說，誕生了各種各樣的特殊功能單元，用于壓力、溫度、轉速、位移等各式各樣的 控制場合；從產品的配套能力來說，生產了各種人機界面單元、通信單元，使應用可編程控制器的工業(yè)控制設備的配套更加容易。目前，可編程控制器在機械制造、石油化工、冶金鋼鐵、汽車、輕工業(yè)等領域的應用都得到了長足的發(fā)展。 我國可編程控制器的引進、應用、研制、生產是伴隨著改革開放開始的。最初是在引進設備中大量使用了可編程控制器。接下來在各種企業(yè)的生產設備及產品中不斷擴大了 PLC 的應用。目前，我國自己已可以生產中小型可編程控制器。上海東屋電氣有限公司生產的 CF 系列、杭州機床電器廠生產的 DKK 及 D 系列、大連組合機床研究所生產 的 S 系列、蘇州電子計算機廠生產的 YZ 系列等多種產品