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Proceedings Paper

A programmable controller based on CAN field bus embedded microprocessor and FPGA
Author(s): Qizhong Cai; Yifeng Guo; Wenhei Chen; Mingtao Wang
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Paper Abstract

One kind of new programmable controller(PLC) is introduced in this paper. The advanced embedded microprocessor and Field-Programmable Gate Array (FPGA) device are applied in the PLC system. The PLC system structure was presented in this paper. It includes 32 bits Advanced RISC Machines (ARM) embedded microprocessor as control core, FPGA as control arithmetic coprocessor and CAN bus as data communication criteria protocol connected the host controller and its various extension modules. It is detailed given that the circuits and working principle, IiO interface circuit between ARM and FPGA and interface circuit between ARM and FPGA coprocessor. Furthermore the interface circuit diagrams between various modules are written. In addition, it is introduced that ladder chart program how to control the transfer info of control arithmetic part in FPGA coprocessor. The PLC, through nearly two months of operation to meet the design of the basic requirements.

Paper Details

Date Published: 13 October 2008
PDF: 6 pages
Proc. SPIE 7129, Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration, 712919 (13 October 2008); doi: 10.1117/12.807393
Show Author Affiliations
Qizhong Cai, Guangxi Univ. of Technology (China)
Yifeng Guo, Guangxi Univ. of Technology (China)
Wenhei Chen, Guangxi Univ. of Technology (China)
Mingtao Wang, Guangxi Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7129:
Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration

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