S7-200是西德西門子公司的產(chǎn)品之一，其注冊商標(biāo)為SIMATIC。6ES5927-3SA11 CPU
1．西門子公司的產(chǎn)品*早是1975年投放市場的SIMATIC S3，它實際上是帶有簡單操作接口的二進(jìn)制控制器；
2．1979年，S3系統(tǒng)被SIMATIC S5所取代，該系統(tǒng)廣泛地使用了微處理器；
3．20世紀(jì)80年代初，S5系統(tǒng)進(jìn)一步升級——U系列PLC，較常用機(jī)型：S5-90U、95U、100U、115U、135U、155U
4．1994年4月，S7系列誕生，它具有更際化、更高性能等級、安裝空間更小、更良好的WINDOWS用戶界面等優(yōu)勢，其機(jī)型為：S7-200、300、400
5．1996年，在過程控制領(lǐng)域，西門子公司又提出PCS7（過程控制系統(tǒng)7）的概念，將其優(yōu)勢的WINCC（與WINDOWS兼容的操作界面）、PROFIBUS（工業(yè)現(xiàn)場總線）、COROS（監(jiān)控系統(tǒng)）、SINEC（西門子工業(yè)網(wǎng)絡(luò)）及控調(diào)技術(shù)溶為一體
6．現(xiàn)在，西門子公司又提出TIA（Totally Integrated Automation）概念，即全集成自動化系統(tǒng)，將PLC技術(shù)溶于全部自動化領(lǐng)域-------------------------------
聯(lián)系人：陳如（銷售工程師）

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