The Inyestication Of The Intelligentized Protector Conmunication By Ethernet In Electromotor

Now ETHERNET is used to control unit and set up network control system with ETHERNET appearance and rapid development.In order to share network resource,all kinds of equipments and apparatus begin to realize communication by network.Network control system differs from traditional control system. It has realized modern network control technology basing on network and computer.Network control syetem changes traditional control mode and connects all control equipments with network.By this way,it can deal with data and information more effective than traditional mode.Because ETHERNET has penetrated everywhere in the world,we can save the expense of paving other line.lt provides reliable measures for data transmission with TCP/IP protocol being used widely.And TCP/IP provide software support for network control development.Using the knowledge of single chip processor and integrated circuit to control CMOS chip RTL8019AS of network card,this paper successfully realizes ETHERNET communication about three phase electromotor.My research includes mainly hardware and software.Hardware includes network card ,ISA bus interface and network reset.Softwre includes TCP/IP protocol.As a result,three phase electromotor is controlled by ETHERNET.The method in this paper is more reliable and cheaper and it has been a tide for equipment communication by network.Owing to the perfect function and high reliability,'this product can bring great profit for producers.