LV Jiang dong, SHI Wei min, PENG Lai hu

 

(College of Machinery and Automatic Control, Zhejiang Sci Tech University, Hangzhou 310018, China)

 

 

Abstract: Aiming at enterprise distribution networks′ problems of single monitoring method, small monitoring scope and high maintenance cost and so on, some things were studied such as the working principle and process of enterprise distribution networks, the design of hardware circuits of Ethernet and RS485 bus, the application of Modbus RTU communication protocol on Ethernet and RS485 bus and the design and implementation process of trend diagram, and a design of remote monitoring system for enterprise distribution networks based on Ethernet was proposed. The server and client software design was achieved based on Visual Studio 2008. The test and using result indicates that this monitoring system of enterprise distribution networks based on Ethernet can transfer date fast and steadily, monitor the information of distribution networks in time, which assures the normal operation of enterprise′s equipments and people′s safety of life and property.

 

Key words: enterprise distribution networks; Ethernet; RS485; Modbus