有關(guān)現(xiàn)場總線控制外文資料翻譯(文件)
【正文】 著廣泛的應(yīng)用。對程序的掃描和求解不同階梯格的邏輯決定了輸出狀態(tài)。舉例來說，溫度首先由鉑電阻采集。事實上，存在兩種控制模式，自動的和手動的。我們強調(diào)指出，用戶適應(yīng)模糊邏輯控制器的經(jīng)驗在這里也被利用來進一步改善生產(chǎn)的績效。為此目的，我們用模糊推理來調(diào)節(jié)PID 的因子，通過這樣的方法， PID 的因子可以根據(jù)系統(tǒng)狀態(tài)和設(shè)備參數(shù)的變化加以調(diào)節(jié)。t meet the new requirement of the system any more due to the higher control target, and a more advanced theory need to be found to support the system with higher plexity In contrast with the slow progress of the control theory, the automatic control tool experienced the evolution of pneumatic meter control, centralize data control system and distributed control system has made a great achievement, that is the new integrated and distributed control systemfield bus control system. Nowadays, the technology of Fieldbus has bee the hotspot in the research field of automation and bee the main method of munication and exchange of information in the DCS systems. And the Profibus is a kind of Fieldbus broadly used in many situations of process control of industry such as automation of processing, automation of machining and automation of building. With the development of the fieldbus technology, its advantage has became more and more notable in the field of puter39。s hydraulic hoist system. The thesis analyzed the development of the gate39。s control technique, especially the characteristics of the Profibus fieldbus， the thesis put forward the project that the gate supervise controlling system base on the Profibus control and Ether technique， according to that project， pleted PLC control procedure and the procedure of the supervise and control( supervise and control software and manmachine interface)。 while in the auto mode, output values are regulated by the predesigned control algorithms. It is worth mentioning that the outputs of PLC are always incremental values. Although autotuning PID controllers can be employed here, manual tuning is always used at the beginning of the production for routine initialization, and after that the system is switched to the auto mode. We emphasize that user39。s production, and still guaranteed the system had very advanced at the same time. Bottom layer of control is not any longer an unaided anode. It joins automation control system, processing controllingmanagement system with enterprise resource planning system to apply technology of Industrial Ether and fieldbus, as a result, the data acquisition capacity and flexibility improved, the problem on contro
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