基于plc的中厚板冷卻系統(tǒng)控制設計_畢業(yè)設計說明書-資料下載頁

【導讀】層流冷卻技術是一種以上下兩排水幕噴淋冷卻水，以冷卻水沖擊鋼板的上下。的應用于各大鋼鐵公司的冷卻生產線上。為了更好的達到冷卻的控制精度我采用的。是西門子公司的S7-300來保證計算精度和運算的快速性。模式，更好的滿足了冷卻效果的要求。最后用變量表調試程序并且給出了仿真結果。

　　

【正文】 的應用必將給我國中厚板生產帶來良好的前景。 鞍山科技大學畢業(yè)設計（論文） 第 30 頁 致謝 在畢業(yè)設計 的過程 中，我的畢業(yè)設計指導教師給予了我很大的幫助，指導我完成了這次畢業(yè)設計，因此在此向敬愛的老師給予最誠摯的敬意。 再次在這次畢業(yè)設計中我的同學也給予了我很大的幫助，在遇到不會的問題時他們 給予了我細致的講解，因此在此我也向他 們 表達深深的謝意。 鞍山科技大學畢業(yè)設計（論文） 第 31 頁 參考文獻 [1] 王仲初 ,柴天佑 .中厚板水幕分組冷卻的最優(yōu)前饋控制算法 [J].基礎自動化 ,2020 ,7(3) :13. [2] 楊 紅 , 蘇海龍 , 張殿華 .中厚板水幕冷卻的控制系統(tǒng) [A].遼寧 沈陽 東北大學軋制技術及連軋自動化國家重點實驗室 ,2020． [3] 王占學．控制軋制與控制冷卻 [A].北京 :冶金工業(yè)出版社 ,1988 [4] 小林清二等．厚板在線處理 [A].國外鋼鐵 ,1987 , (7) :23～ 29． [5] 劉細芬，蔡曉輝，王國棟，劉相華 .中厚板軋后控 制冷卻技術的發(fā)展概況 [A]．沈陽 東北大學． 2020． [6] D. Auzinger. Recent Development in Process Optimisation for Laminar Cooling in hot Strip Mills. Ironmaking and Steelmaking ,1996 ,23 (1) :84～ 87 鞍山科技大學畢業(yè)設計（論文） 第 32 頁 附錄 A （外文文獻） Programmable controller survey programmable controller English called Programmable Logic Controller, is called PLC. controllers basic principles PLC is based on the electronic accounting machine, also is suitable for the industry field works electric controller. Its source relay control device, but it does not like relay install such, through electric circuit physical process realization control, but mainly depends on the movement to save in the PLC memory the procedure, carries on into the information conversion realization control. PLC based on electronic accounting machine, but certainly does not equate to the ordinary puter. The universal puter carries on into the information conversion, many only considered information itself, the information enters, so long as the manmachine contact surface were good may. But PLC then also must consider the information enters reliability, timeliness, as well as information question and so on use. Specially must consider how adapts in the industry environment, like is advantageous for the installment, question and so on. Programmable controllers realizations control main point enters the information conversion, the reliable physical realization, may say is the PLC realization control two basic main points. Enters the information conversion to depend on the movement to save in the PLC memory the procedure realization. The PLC procedure both has produces the factory the system program (not to be possible to change), and has the application which the user voluntarily develops (user) the procedure. The system program provides the movement platform, simultaneously, but also is the PLC procedure reliable movement and the signal and the information transformation carries on essential public processing. The user program according to controls the request design by the user. Any types control request, should have any type the user program. The reliable physical realization mainly depends on loses the person (INPUT) and the output (OUTPUT) the electric circuit. The PLC I/O electric circuit, all is specially designs. The input circuit must carry on the filter to the input signal, removes the high frequency interference. Moreover is isolates with 鞍山科技大學畢業(yè)設計（論文） 第 33 頁 internal puter electric circuit on the electricity, depends on the light pair part establishment relation. Inside and outside the output circuit also is the electricity isolation, depends on the light pair part or the output relay establishment relation. The output circuit also must carry on the power to enlarge, to sufficiently drives the general industry control primary device, like solenoid valve, contact device and so on. The I/O electric circuit is very many, each entrance points either output all must have In or the Out electric circuit. PLC has multi I/O to use the spot, generally also has how many I/O point to use the electric circuit. But because they all are posed by the high integrate electric circuit, therefore, accounts for the volume not to be certainly big. The input circuit time is monitoring the input condition, and temporarily stores it to inputting in the temporary storage device. Each entrance point all has a corresponding the memory its information temporary storage device. The output circuit must output the latch the information transmission for the output spot. Output latch AND output also is 11 corresponding here input temporary storage devices and the output latch actually is PLC the processor I/O mouth register. They and puter memory exchange information through puter main line, and mainly by movement system program realization. Loses the person temporary storage device information to read PLC in the memory, called the input renovates. The PLC memory has the specially opening the depositing infer information mapping area. This area each corresponding position (bit) called it inputs the relay, or calls the soft contact. These positions bee 1, indicated the contact passes, sets at 0 to break for the contact. Because its condition is renovates by the input obtains, therefore, it reflects inputs the condition. Outputs the latch and in the PLC memory output mapping area also is the correspondence. An output latch also has a memory position (bit) if to correspond, this units place is called outputs the relay, or calls the output winding. Depends on the movement system program, outputs the relay the condition to map outputs the latch. This mapping also called the output renovates. The output renovates mainly also depends on the movement system program realization. Thus, the user must arrange the procedure only is, in the memory inputs the mapping area to the output mapping area transformation how 鞍山科技大學畢業(yè)設計（論文） 第 34 頁 specially presses the input t