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- Study on Model of FF Virtual Field Device FF中虚拟现场设备模型的研究
- This is Virtual Fields taken to the next level. 这是下一层次的虚拟字段。
- Profibus is applied in field device layer and Industral Ethernet is adopted in network control layer. 装置控制系统在逻辑结构上分为两层:现场设备层和网络控制层,PROFIBUS用于现场设备层,网络控制层采用工业以太网。
- Real time data transport and distributed control between field device and control PC is realized. 实现了现场设备和中控微机之间的实时数据传送和分散控制。
- Abnormal situation prevention through smart field devices. 通过灵敏的现场设备阻止异常情况的发生。
- In addition, both groups have agreed to consolidate the advantages of EDDL and Field Device Tool （FDT） solutions into a single standard technology. 此外，各方都已同意将EDDL优势和FDT解决方案巩固到单一标准技术里。
- Last year a dozen schools went on a “virtual field trip” to Antarctica, with scientists beamed in by satellite, and a school in Birmingham has been liaising with a counterpart in Wales. 去年十二个学校的学生与通过卫星播送的科学家一道去南极洲参加了一个“虚拟之地旅行”，而且伯明翰的一所学校还与一所威尔士的学校结成兄弟院校。
- Feeders and motor control circuits for all users shall be run in above ground cable tray, with galvanized conduit for drops from the cable tray to the field device. 所有电力用户的馈电线路和电动机控制线路都应在架高的电缆桥架上走线，从电缆桥架上到现场装置的引入线应采用镀锌导管。
- A report contains one virtual Fields collection for each data source in the report. 报表为它所包含的每一数据源包含一个虚拟的Fields集合。
- The easiest way to set this up is to create the Virtual Fields activity once, and then copy and paste that activity document once for every server in the cluster. 进行这个设置最简单的方法是,一旦创建了Virtual Fields活动,就复制和粘贴活动文档到集群中的每一台服务器。
- The Manufacturing Message Specification(MMS) technique, Field Device models and Inter-Control Center Communication Protocol(ICCP) models are explained.The characters of UCA are provided. 对制造报文规范(MMS)技术、现场设备模型、控制中心间的通信协议(ICCP)模型作了介绍，总结了UCA协议体系的特点；
- The technologies of EDDL and EDD are introduced briefly in the paper. The development and application of EDD for Profibus-DP/PA field device based on Siemens PDM software are described. 本文简要介绍了EDDL和EDD技术,叙述了基于西门子PDM软件的Profibus DP/PA现场设备的EDD的开发及应用。
- By way of data monitor and analyze, found out the keyframes format of PPI protocol on Siemens S7-200 series PLC,it can be use in communication of upper computer,field device with a PLC. 通过数据监视、分析的方法,找出了西门子S7-200系列PLC的PPI协议关键帧格式,可用于上位机、现场设备与PLC之间通讯。
- The DC active filter (DAF), with very low current ripple, of the stable power supply system of high magnetic field device is developed by using the PWM and parallel active power filter technique. 摘要对稳态强磁场装置电源所需的直流有源滤波器(DAF)进行了设计，提出了利用PWM及并联有源滤波技术的滤波方案。
- When it comes to Field Device Tools （FDT） and Device Type Managers （DTM）, Pepperl+Fuchs has been among the major driving forces to develop and establish this technology on the market. 当其成为FDT和DTM时，倍加福已经成为市场上此技术的主要驱动力量。
- PAC8000 controllers can pass HART information from smart field devices to a computer running device asset management software, allowing for remote maintenance and calibration. PAC8000控制器支持HART协议，从智能领域设备到计算机运行设备资产管理软件，允许远程维护和校准。
- The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
- These children were in a state of virtual neglect. 这些孩子实际上处于无人照管的状态。
- As a result, DTM technology has become a worldwide standard to allow fast and easy configuration of even complex field devices prior to their operation. 作为结果，DTM技术已经成为世界标准，允许复杂的现场设备能够被快速且方便的配置。
- A virtual state of war exist between the two countries. 这两国间实际上处於战争状态。
