异地西门子PLC在远程通讯中的应用  

Application of PLC of Siemens in Remote Communication Svstem

作　　者：靳雁艳 

机构地区：[1]北京赛思亿电气科技有限公司,北京100097

出　　处：《自动化技术与应用》2015年第5期61-64,共4页Techniques of Automation and Applications

摘　　要：介绍了三套西门子PLC S7-300系统结合在远程通讯中的应用,兼于两点异地罐区和装车区不在同一地点,且距离较远,要想实现自动装车就必须让罐区仪表和装车系统通讯起来,本文讲述的是罐区仪表可以实现在装车区控制,且只用一对光纤和两端的设备就能实现两者之间的通讯,既避免了由于距离远仪表电缆信号衰减情况,又节约了成本。This paper introduces three sets of Siemens PLC S7-300m system combined with the application in remote communication in, and two different tanks want to realize automatic loading, it should let the tank instrument and loading system to communicated. This describes tank instruments to realize farm loading control, and only a pair of optical fibers and the ends equipment to realize communications between, both to avoid the distance instrument cable signal attenuation, and save the cost.

关 键 词：PLC S7-300 IFIX 远程通讯 

分 类 号：TN925-31[电子电信—通信与信息系统]