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The structure of hardware and software for the SIEMENS MM serial inverter which are linked to the network and its application in the fieldbus are analyzed . The TOP architecture of the system ,the establishment of master and slave station and access to GSD document of inverter are describled in detail.

PROFIBUS现场总线是工业自动化控制领域最流行的控制技术之一,针对该总线的工作原理和特点,本文介绍了PROFIBUS—DP的特点,探讨了SIEMENS MM系列变频器连入PROFIBUS—DP的硬件和软件结构及在该系统中的应用情况。

Based on the analysis of dip angle, friction coefficient between rigid bodies, influence effect of floor sliding block and roof fracture rock-mass, working resistance of support as well as compound characteristics of face surrounding rock, main factors which lead to destabilize in system "R-S-F" were obtained, and the controlling pattern of dynamic stability of firming bedding, controlling keys, achieving the goal were also established.

通过对工作面围岩组成特征、支架工作阻力、顶板破断岩块及底板破坏滑移体影响效应、刚体之间的摩擦因数以及煤层倾角等因素的分析,给出了引发"R-S-F"系统失稳的主导参数,确定了"稳固基础,控制关键,达到目的"的"R-S-F"系统动态稳定性控制模式和现场生产管理过程中需注意和解决的关键技术问题。

The control system of Shanghai Synchrotron Radiation Facility is an EPICS-based distributed system.

预制研究中的上海同步辐射装置控制系统是一个基于Ethernet和DeviceNet现场总线的分布式系统,设备级控制是建立该系统的重点和难点之一。

Affected by the backfilling, the tangential stress of shotcrete has a tendency is for pressure stress to be tensile stress; it is dangerous to induce the axial cranny.

对照现场实际,在近水平煤系地层中修建隧道,如有厚层硬岩层控制,只要对局部软岩层加强支护控制,是可以保证围岩的整体稳定的。

Thermoscope choose PT100, temperature controls the PID that used integral depart to control algorithm, can change PID parameter through clavier, real time trends shows spot temperature.

测温器件选用PT100,温度控制采用了积分分离的PID控制算法,可通过键盘改变PID参数,实时动态显示现场温度。

In many industrial field, field data on dispersive or unwatched occasion need to be obtained at regular intervals and simple control commands are sent.

摘要远程监控在工业控制领域中有着十分重要的意义,在许多工业场合,需要对一些分散的、无人值守的现场数据进行定时采集,同时发送简单的控制命令。

How to realizeprocess control of Furan resin-bonded sand self-curing technology has been briefly expounded combining practi- cal production with several sections such as raw material preparation, mixing sand, molding, coremaking,recla- mation and technological equipment design which have been depended upon to work out a series of document of techndogy and technique of furan resin-bonded sand self-curing process operational reules, technology regulations and acceptance standard of raw materials to pl...

呋喃树脂自硬砂;生产工艺过程;质量控制;本文结合生产实际情况,从原材料的准备、混砂、造型、制芯以及再生过程和工艺工装设计等几个方面,简要阐述了如何对呋喃树脂自硬砂生产工艺过程进行质量控制,并且在此基础上制订了工艺操作规程和工艺守则以及原材料验收标准等一系列有关树脂自硬砂的工艺技术性文件,对现场生产起了重要的指导作用。

In order to tracking with the beacon facular real time and high precisely for fine tracking system in space light communication, a suit of fine tracking control flat based on high frame frequency CMOS camera is designed, image processing and control algorithms are all integrated into the large scale FPGA chip.

针对空间光通信系统对信标光斑实时准确跟踪需求,设计了基于高帧频相机的精跟踪处理控制平台,并将图像处理和控制算法全部集成在大规模现场可编程门阵列芯片内部。

The system, which includes an industrial computer as the Upper-Computer and twenty PLC as the low-computer to control more then 40 sulphuration machines, can transmit data by RS-485 net work, get the work state of sulphuration machine using on-off card or by communicating with PLC and show the state on the watch screen.

控制系统由一台工控机作为上位机,由20台PLC作为下位机控制工作现场40多台硫化机的工作,采用RS485作为通信网络进行数据传输,通过开关量卡以及与PLC的通信得到硫化机的工作状态并在监视屏幕上显示。

Gloucester's inability to see the truth echoes the discussion between Goneril and Regan at the end of Act I, scene i, about Lear's unreliability in his old age: the "infirmity of his age"(Ii 291 ) and his "unconstant starts"(Ii 298 ) evoke images of senility and suggest that his daughterrs ought to take control from him, just as Edmund is taking control from Gloucester.

格洛斯特无法看到的真相回波之间的讨论和里根Goneril结束时,法一,现场字母i约李的可靠性晚年:在&体弱,他的年龄&(二291 )和他的& unconstant启动&(二298 )衰老引起的图像,并建议他daughterrs应该采取控制他,就像埃德蒙是控制从格洛斯特。

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推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。