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- Abstract: The fieldbus technology is new technology in automatization. 文摘:现场总线技术是自动化领域里的一项新技术。
- The economic and social benefits due to the fieldbus system are analyzed. 分析了现场总线系统的经济效益和社会效益。
- Secondly two layers are described in the thesis: the data link layer(DLL) and the fieldbus access sublayer(FAS). 分析了两个目标层:数据链路层和现场总线访问子层。
- An example system of the design technology based on RTOS will be present in detail on how to design the control system software in the fieldbus. 以现场总线基于实时操作系统的开发为例，阐述了怎样开发现场总线的控制系统软件。
- And the fast development of the fieldbus requires that a transmitter or a sensor should have good reliability and higher precision. 特别是目前发展较快的总线技术要求变送器（或传感器）具有良好的可靠性和更高的精度。
- Meantime the principles and the structures of the fieldbus control system and some differences from DCS are analysed by this paper. 同时对现场总线控制系统 (FCS)结构、原理进行了简要分析并与分布式控制系统 (DCS)进行了对比。
- Smart sensors are basic units in the fieldbus control system, and their performances are most important for the whole control system. 智能传感器是现场总线控制系统中最基本的结构单元,智能传感器的正常工作对整个控制系统至关重要。
- This paper analyzes the actuality of textile machinery and expatiates on the basic conception and characteristic of the fieldbus technology. 分析了我国纺织机械现状,阐述了现场总线的基本概念及特点。
- HIST results demonstrate which features defined in the Fieldbus Foundation's host feature checklist are supported by a compliant host system. 证明符合现场总线基金会的主机特征列表的HIST结果由一个兼容的主机系统支持。
- Therefore, a datagram receiver is designed for the monitor and categorization of any datagrams transfering in the fieldbus based on the Profibus data-link layer protocol. 因此在分析Profibus链路层协议的基础上,设计了一种基于CPLD的可随时监测总线上传输的报文并将其分类的Profibus-DP报文接收器。
- Electricity control technique developed from the relay system to the direct digit control( DDC) system the disperse control system( DCS) to the fieldbus control system ( FCS). 电气控制从继电器控制系统发展到直接数字控制(DDC)系统、集散控制系统(DCS)到目前的现场总线控制系统(FCS)。
- The fieldbus control system is the latest industrial automation control system,which is characterized with full digital,distributed,open and interoperable. 现场总线控制系统是信息数字化、控制分散化、开放互可操作的新一代工业自动化控制系统。
- The fieldbus is introduced simply in this paper and the applications of fieldbus and Ethernet are presented.At the same time, it discusses Ethernet for industry. 摘要对现场总线作了简单的介绍，主要介绍了现场总线与以太网结合的应用，对工业以太网作了详细的阐述；
- Abstract： The fieldbus control system （FCS） has more obvious advantage than the closed distributed control system （DCS）, which has become the major in process control. 摘要：现场总线控制系统（FCS）较封闭的DCS系统具有明显的优势，已成为过程控制的主流系统。
- At present, the open architecture controller and the fieldbus for motion control is a hotspot at home and abroad in the field of numerical control system. 当前，在数控系统研究领域中，开放结构控制器技术和运动控制现场总线技术是国内外研究的热点。
- This paper provides the CAN bus communication program of intelligent instrument system based on the analysis of the characteristics of the fieldbus CAN. 在分析了CAN现场总线特点的基础上提出了智能测控仪表系统的CAN总线通信方案。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Foreign nationals were asked to leave the country. 外国侨民被要求离开该国。
