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The Design and Development of Modbus and CAN Bus Protocol Adapter

Author: YangFuXing
Tutor: TanShiZhe
School: Ocean University of China
Course: Signal and Information Processing
Keywords: Fieldbus Modbus CAN Adapter
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 193
Quote: 0
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Abstract


Fieldbus technology is today the development of automation research focus . CAN bus as a highly reliable , fully functional , good flexibility and reasonable cost of advanced remote network control methods in the field of industrial automation and control has a very wide range of applications . MODBUS protocol implemented in the application layer of the OSI reference model definitions , usually as instrumentation layer network communications. Currently on the market situation , most of the smart field instrumentation and automation control devices are usually other uses Modbus serial interface communication protocol. The MODBUS protocol and CAN bus protocol is incompatible . Using MODBUS protocol devices can not access the CAN bus network. In this paper, MODBUS protocol , CAN bus technology has been studied from two aspects of software and hardware designed a simple to use, can make intelligent protocol adapter to convert the smart way to achieve Modbus bus protocol and CAN bus protocol between reliable , high-speed conversion. Achieved using MODBUS protocol devices via the bus protocol adapter flexibility to access the CAN bus network. Bus protocol adapter for harsh working environment, from hardware design and software design, enhanced bus protocol adapters reliability and noise immunity. This article also describes the case of laboratory tests and experimental analysis of the results . Work for the bus protocol adapter performance indicators provide a data basis . The practical significance of this project lies in the design of intelligent bus protocol adapter as Modbus bus and CAN bus network compatible implementation of programs to achieve the serial interface using the Modbus communication protocol most intelligent field instrumentation and automation control devices other flexible access to the CAN fieldbus network. Elaborated method can also be applied to other areas of the IPC to provide a reference .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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