Code for on - line acceptance test of sequence control system in fossil fuel power plant 火力发电厂顺序控制系统在线验收测试规程
Tape sequence control 顺序控制带
The realization of belt conveyor ' s sequence control system controlled by at89c2051 single chip computer 2051单片机的皮带机送料顺序控制系统的实现
Abstract : some design rules for sequence control system in dcs are discussed . it is useful for the design of sequence control and start - stop control 文摘:讨论了在dcs中实施顺序控制系统时程开停车控制有一定的实用意义。
The z - order controls the display of overlapped elements ; elements with higher z - order values are displayed in front of those with lower z - order values Z顺序控制重叠元素的显示， z顺序值高的元素显示在z顺序值低的元素前面。
The program of the man - machine interface is designed by the sequential function chart design method the paper presents the sequential function chart of the program . according to the chart the ladder diagram program can be made out easily 论文用顺序控制设计法设计人机界面的程序，给出了人机界面的顺序功能图，根据顺序功能图可以很容易地设计出梯形图程序。
The technology of research include following . the computer order control to attain testing condition of relay ' s turn - on and off . to control of testing ac voltage by adoption of advance control strategy 测控技术包括：实现模拟继电器接通与分断负载条件的顺序控制技术；采用先进控制策略的试验电压控制技术；试验参数检测技术；试验参数波形的实时显示技术；以dsp (数字信号处理器)为核心的试验数据高速采集技术。
After 150 % capacity increasing of 30 kt pet plant , through analysis of the factors that have effect on the prepolycondensation vaccum system , effective combination the sfc sequence control with the traditional pid control , the unstable problems exist in the technology control process were solved 摘要3万t聚酯装置在扩容150 %后，通过对预缩真空系统的影响因素的分析，采取sfc顺序控制与传统pid控制有效结合，解决了工艺控制过程中存在的不稳问题。
Abstract : this article retrospects the development of sequence control system in thermal power plants at home and abroad ， especially introduces the three developmental stages of sequence control system in china over the past 35 years ， i . e . ： 1 . starting stage ； 2 . the second stage with programmable logic controller ( plc ) as core hardwares ； and 3 . the third stage with sequence control systems of main and auxiliary equipment incorporated into the distributed control system ( dcs ) and with field bus control system ( fcs ) got involved . this article also appraises the features of sequence control system composed of different configurations and looks forward to the developmental tendency of this system for the next century 文摘:回顾国内、外火电厂顺序控制系统的发展，特别介绍35a来我国顺序控制系统经历的起步阶段、以程序控制器( plc )为核心硬件的中期阶段和主、辅机顺序控制系统融入分散控制系统( dcs )阶段、现场总线控制系统( fcs )介入阶段，并对由不同形式组成的顺序控制系统的特点进行评价，展望下一世纪该系统的发展趋势。
In order to solve several problems when studying visualization of multi - source spatial data , the authors propose two new conceptions , display sequence control and symbol display control style , the former is used to manage visualization of multi - source data ; and the latter is used to solve problems of set of map symbol style at different display scale 摘要提出了显示顺序控制和符号显示控制样式两个新概念，解决了多源数据的综合管理显示问题，改善了地图要素在不同显示比例尺段的显示效果。
