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Development of singlechip Ethernet and its application in electrical automation

Guiqing Wu

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Abstract

As the traditional serial communication could not meet requirements of on-line detection and relay protection of electrical devices,a scheme based on TCP / IP technique is presented for real-time data transmission.MC9S12NE64 chip is used to construct embedded Ethernet system,which integrates a Freescale CPU12 core and a 10 /100 Base-T Ethernet interface.The smallest system only needs one MC9S12NE64 chip,one Ethernet transformer and one RJ45 connector.Based on the hardware driver of integrated Ethernet MAC,the modified TCP / IP stack protocol is adopted.A gateway of RS-232 to Ethernet and an embedded Web server are designed.These applications to the real-time communication of automatic bus transfer equipment and the on-line monitoring of generator are discussed in detail.

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What this paper is about

As the traditional serial communication could not meet requirements of on-line detection and relay protection of electrical devices,a scheme based on TCP / IP technique is presented for real-time data transmission.MC9S12NE64 chip is used to construct embedded Ethernet system,which integrates a Freescale CPU12 core and a 10 /100 Base-T Ethernet interface.The smallest system only needs one MC9S12NE64 chip,one Ethernet transformer and one RJ45 connector.Based on the hardware driver of integrated Ethernet MAC,the modified TCP / IP stack protocol is adopted.A gateway of RS-232 to Ethernet and an embedded Web server are designed.These applications to the real-time communication of automatic bus transfer equipment and the on-line monitoring of generator are discussed in detail.

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Available abstract

As the traditional serial communication could not meet requirements of on-line detection and relay protection of electrical devices,a scheme based on TCP / IP technique is presented for real-time data transmission.MC9S12NE64 chip is used to construct embedded Ethernet system,which integrates a Freescale CPU12 core and a 10 /100 Base-T Ethernet interface.The smallest system only needs one MC9S12NE64 chip,one Ethernet transformer and one RJ45 connector.Based on the hardware driver of integrated Ethernet MAC,the modified TCP / IP stack protocol is adopted.A gateway of RS-232 to Ethernet and an embedded Web server are designed.These applications to the real-time communication of automatic bus transfer equipment and the on-line monitoring of generator are discussed in detail.

Key concepts: Carrier Ethernet, Synchronous Ethernet, Ethernet over PDH, Industrial Ethernet, Ethernet over SDH, Embedded system, Ethernet Powerlink, Metro Ethernet

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Development of singlechip Ethernet and its application in electrical automation — Research Paper | ScholarLens