先给我加分,然后我给你找!少于100分免谈,因为下载这样的文章难度非常大,基本上下载一篇就需要1个小时,我不夸张的,呵呵!
第1篇:Study on S7-200 PPI protocol catching and its communication components 作者:Xing, Li-Hong (College of Electrical Engineering and Automation, Qufu Normal University); 共5页;
第2篇:Design of fuzzy-PID controller based on prediction model and its realization in PLC 作者:Xu, Lin (Key Laboratory of Process Industry Automation, Ministry of Education, Northeastern University);
共4页;
以上都是采用关键词:plc + s7 选出来的,数据库使用的是EI。如果满意的话,自己挑一篇。