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Design of the Master Node of the Fieldbus Control System Based on ARM

Author: LiLingJie
Tutor: ChenWenZuo
School: Xiamen University
Course: Measuring Technology and Instrument
Keywords: ARM CAN bus Modbus bus
CLC: TP273.5
Type: Master's thesis
Year: 2009
Downloads: 159
Quote: 3
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Abstract


Fieldbus technology with its advanced, practical , reliability , openness , etc. , has become the hot spot of the development of automation technology . As an open field bus control system with interoperability , completely decentralized, distributed control system has been a huge impact on the formation of the traditional PLC, distributed control system , and has broad prospects for development . As one of the fieldbus CAN bus with its high reliability, real-time, low cost, easy to implement , is widely used in industrial control. Compared with the traditional control system , based on the CAN bus design of industrial control systems can reduce the complexity of system control , reduce costs, and improve system stability and scalability . This thesis focuses on the specific application needs of a stone processing plant , in the analysis based on CAN bus protocol , given the overall solution of the industrial control network , the master node hardware design , software design , human-computer interface design , and network communication the structural model and the concrete realization of the process , completed work as follows: the design of hardware and software platform based on ARM processor LPC2378 development of industrial control network master node . The hardware design of the nodes on the circuit, including the CAN bus interface circuit , a serial interface circuit , the AD and DA conversion isolation circuit . OS- II operating system migration on a hardware platform based on the operating system to write drivers for various hardware modules , including the serial interface and the CAN module initialization, data received and sent . Communication design, according to the specific needs of industrial control applications , design of the overall network solutions , including the program of the network topology , communication structures , technical specifications based on CAN bus CAN2.0B custom CAN bus network application layer communication protocol CAN < / sub > 8 . Man-machine interface design, based on the the Wei Lun MT505 design the man-machine interface of the industrial network's programming Modbus communication of the man-machine interface with the master node .

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