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SIMATIC TDC在酸洗冷连轧系统中的应用
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作者 赵春瑞 《电脑知识与技术》 2010年第4X期3252-3253,共2页
为了提高酸洗冷连轧控制系统的处理能力,提出了以逻辑控制单元为基础的模块化程序设计的新概念,并将其作为构建控制系统的基本框架。在阐述了核心控制器(SIMATICTDC)的硬件特性与网络构成的基础上,提出了基于西门子STEP7系统软件的体系... 为了提高酸洗冷连轧控制系统的处理能力,提出了以逻辑控制单元为基础的模块化程序设计的新概念,并将其作为构建控制系统的基本框架。在阐述了核心控制器(SIMATICTDC)的硬件特性与网络构成的基础上,提出了基于西门子STEP7系统软件的体系结构,并采用CFC语言进行了程序设计。通过对鞍钢天铁冷轧线的控制系统实例分析,验证了模块化程序设计思想、SIMAT-ICTDC、STEP7软件在实现提高酸洗冷连轧控制系统处理能力方面的有效性。 展开更多
关键词 工艺驱动控制器 酸洗冷连轧 连续功能图 物料跟踪 设定值处理
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A MEMS stronglink with multi-try function used for PC startup in authentication system
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作者 李胜勇 陈文元 +3 位作者 张卫平 肖奇军 谈顺毅 冯敏华 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第2期159-164,共6页
The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which co... The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which consists of two groups of metal counter-meshing gears, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors. The energy-coupling element is a photoelectric sensor with a circular and notched plate. It is fabricated using the UV-LiGA process and precision mechanical engineering. The PC startup authentication system is controlled by BIOS program, which is written into the chip according with special format. The program in BIOS output signals controls the running of stronglink to finish the process of authentication. The device can run more than 10000 times before a stop. The driving voltage is 12 V, and the normal decoding time is 3 s. 展开更多
关键词 stronglink multi-try UQS AUTHENTICATION PC startup
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