通信网络是变电站自动化系统的关键。
Communication network is a key technique in substation automation system.
对基于变电站通信网络和自动化系统的国际标准——IEC61850的变电站过程层进行了研究。
The process level of substation, which is based on the international standard IEC61850 of substation communication network and automatic system, is researched.
研究快速以太网在变电站自动化系统中的应用，提出了基于100M以太网的变电站通信网的网络结构。
Research the application of 100m Ethernet in substation automation system, and provide a new network configuration of substation automation system base on 100m Ethernet.
现场总线是连接现场设备和自动化系统的数字式、双向传输、多分支结构的通信网络。
Fieldbus is a digital, bi - directional, poly - branched communication network connecting field devices in automation control system.
它是连接智能现场设备和自动化系统的全分散、数字式、双向、多变量、多点、多站的通信网络。
Fielbus is whole scattered intelligent, bi-directional, interconnected, multivariable and multipoint communication network which connects intelligent working equipment with automatic system.
介绍了PLC在高速线材热轧自动化系统中的应用情况，从系统总体结构、PLC机型简介及其通信网络等方面进行了阐述。
This paper introduces the application of PLC in the high-speed wire rolling automation system and discusses the general structure, PLC types and communication network.
对沾昆线牵引供电综合自动化系统的调度控制系统进行功能及站级通信网络进行功能需求分析。
Fifthly, demand analysis about the dispatching control system and substation communication network in substation integrated automation system of Zhanyi-Kunming electric railway is presented.
现场总线是一种串行数据通信链路，是连接智能现场设备和自动化系统的一种通信网络。
Field-bus is a kind of serial link for data communication, or a kind of communication network for connecting intelligent field-bus equipments with automatic system.
为使不同厂商的产品具有互操作性，IEC制定了关于变电站自动化系统的通信网络和系统的国际标准协议IEC61850。
In order that devices of various manufacturers have interoperability, IEC has drafted an international standard protocol IEC61850 on communication networks and systems in substations.
现场总线是用于自动化系统最底层的现场设备或仪表互联的通信网络。
Field bus is a net work via which all field equipments and meters intercommunicate in a roboticized system.
涉及通信网络系统、办公自动化系统和楼宇设备自动化系统，延伸到建筑的各个楼层及角落。
Telecommunications network systems, office automation systems and building automation systems, extend to all floors of the building and corner.
涉及通信网络系统、办公自动化系统和楼宇设备自动化系统，延伸到建筑的各个楼层及角落。
Telecommunications network systems, office automation systems and building automation systems, extend to all floors of the building and corner.
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