外文翻譯--可編程邏輯控制器plc的現(xiàn)況和發(fā)展趨勢-wenkub.com
2025-05-07 07:41 本頁面
【正文】 總之 PLC順應(yīng)企業(yè)融合的需要，向標(biāo)準(zhǔn)化、多功能方向不斷發(fā)展，應(yīng)用領(lǐng)域不斷拓展功能不斷增強(qiáng)，發(fā)展前景非常樂觀。羅克韋爾自動(dòng)化的集成架構(gòu)采用一種控制引擎實(shí)現(xiàn)順序控制、過程控制、傳動(dòng)控制、運(yùn)動(dòng)控制、安全控制和批處理多種控制方式一種開發(fā)平臺提供現(xiàn)場人機(jī)界面和監(jiān)控層的開發(fā)，一種網(wǎng)絡(luò)協(xié)議實(shí)現(xiàn)信息層、控制層和設(shè)備層的無縫集成一種 SOA 架構(gòu)實(shí)現(xiàn)模塊化的生產(chǎn)管理、績管理和集成，實(shí)現(xiàn)了監(jiān)控信息和管理信息的內(nèi)在集成和透明的傳輸。目前自動(dòng)化領(lǐng)域主要的發(fā)展方向是企業(yè)層和車間層的融合。但它們不同程度存在安裝方式可靠性擴(kuò)展能力易用性標(biāo)準(zhǔn)化開放性規(guī)?；矫娴娜毕荨Ｔ诠I(yè)控制領(lǐng)域并沒有得到廣泛的認(rèn)可。羅克韋爾自動(dòng)化收購 ICS Provilion(在先進(jìn)過程控制算法方面領(lǐng)先。 Ether Net/IP能夠完成 100ns 的時(shí)鐘同步，可以用于包括 SOE記錄在內(nèi)的高精度應(yīng)用。 PLC也吸收了 lT的成果如在底層更多使用 XML技術(shù)。 PLC體積越來越小。大家都認(rèn)為工業(yè)以太網(wǎng)將獲得廣泛的應(yīng)用。 PLC 網(wǎng)絡(luò)中 Profibus、 Modbus 應(yīng)用也非常廣泛?？傊?PAC 功能全面，在工廠自動(dòng)化中，僅采用戶 AC就可以實(shí)現(xiàn)所以的控制功能不需要其他的控制系統(tǒng)。 包括連接到標(biāo)準(zhǔn)的 FF和 PA 網(wǎng)、各種設(shè)備級的網(wǎng)絡(luò)；可以通過標(biāo)準(zhǔn)的現(xiàn)場總線連接變頻器， MCC(馬達(dá)控制中心 )，擴(kuò)展 I/O也可以連接不同的控制器。目前 PAC在國內(nèi)和國外有不同的定義。幾乎成為高可靠性的代名詞。通過網(wǎng)絡(luò)可以實(shí)現(xiàn)分散控制，降低安裝成本，提高集成度。同時(shí)也可以降低研發(fā)和生產(chǎn)成本。隨著應(yīng)用領(lǐng)域不斷拓展出現(xiàn)了各種不同的 PLC。完全用于邏輯 (順序 )控制內(nèi)存小功能單一。隨著電子元器件的發(fā)展， 1969年前后發(fā)明了 PLC(Programmable Logic Controller)。s markets, IPC development in the slit. PLC More and more likes DCS. Industrial Machine and industrial machine with the control The popularity of the PC machine, has developed rapidly. But they exist in varying degrees to install Way. At the same time, aspects of standardization and openness has made substantial progress Loved by many users. Only certain areas in the functional base in the PLC Developed on the basis of the PAC system can meet the control of the whole plant to Seeking. Thus PLC is still a solid foundation. At present, automation is the main direction of development of enterprise and shop floor level Integration. Enhancement of productivity, globalization, innovation and sustainable development Requirements, driven by information, munication, control and automation of dynamic integration The only way for development. China also has the funds to support enterprise integration Research topics, many industries have begun to explore the road of integration. Cisco and the Law Rockwell automation of joint production of industrial Ether switch is consistent with the product of the trend. Rockwell Automation39。s first major application in the automotive production line. With the application of Continuously expand the area of a variety of households in PLC. In order to meet the needs of different Application of the requirements of the needs of families with a strong PLC itself flexibility. Households PLC Factory solution is standardized, modular and work. Input, output signal into 20mA and so on, each signal using. A types of processing modules,
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