3D04153G03西屋价格真棒 步进电动驱动器 返回列表页

3D04153G03西屋价格真棒

3D04153G03西屋价格真棒

DCS是分散控制系统(Distributed Control System)的简称，国内一般习惯称为集散控制系统。它是一个由过程控制级和过程监控级组成的以通信网络为纽带的多级计算机系统，综合了计算机(Computer)、通讯(Communication)、显示(CRT)和控制(Control)等4C技术，其基本思想是分散控制、集中操作、分级管理、配置灵活、组态方便。DCS具有以下特点： (1)高可靠性 由于DCS将系统控制功能分散在各台计算机上实现，系统结构采用容错设计，因此某一台计算机出现的故障不会导致系统其它功能的丧失。此外，由于系统中各台计算机所承担的任务比较单一，可以针对需要实现的功能采用具有特定结构和软件的计算机，从而使系统中每台计算机的可靠性也得到提高。

流程工业CIMS是一个复杂的综合自动化系统，处理的对象是整个企业的全部生产活动，DCS作为一种有效的工具和实现手段，在流程工业CIMS中完成重要的基础控制和实时生产数据采集、动态监控等功能。与管理类计算机相比，DCS能够提供更加可靠的生产过程数据，使CIMS系统所作出的优化决策也更加可靠。

   从功能上看，流程工业CIMS中的生产自动化系统、动态监控系统和在线质量控制都可以由DCS实现。从流程工业CIMS的层次结构看，DCS主要担负过程控制和过程优化任务，有些生产调度和生产管理工作也可在DCS上完成。

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