基于SIEMENS L2网络的生产线控制系统优化改造  

Optimized Modification of Production Line Control System Based on SIEMENS L2 Network

作　　者：张建林[1] 何爱民[1] 

机构地区：[1]石家庄卷烟厂,石家庄市维明南大街1号050051

出　　处：《烟草科技》2005年第4期22-24,共3页Tobacco Science & Technology

摘　　要：基于SIEMENS L2网络的生产线控制系统,由于控制节点多,网络交换数据量大,经常出现网络堵塞现象,为此分两步对该系统进行了改造:第一步减少L2网上的节点数量,缩短了网络长度;第二步将L2网划分为两个物理独立、数据相通的网络。改造后减少了每段网络上的数据量,通讯速率提高,解决了网络堵塞的问题。The production line control system based on SIEMENS L2 network frequently jammed because of a large numbers of control nodes and heavily data exchanging, the system was improved by: 1) reducing the nodes on the L2 network and shortening the length of network; 2) dividing the L2 network into two networks which were (physically) independent but connected in terms of data communication. In the modified system, the amount of data on each network was reduced, the communication was speeded, and the network jam was eliminated.

关 键 词：生产线控制系统 SIEMENS L2网络 优化改造 控制节点 网络交换 堵塞现象 网络堵塞 数据量 节点数 通讯 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TN929.53[自动化与计算机技术—控制科学与工程]