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Space division of processing power for feed forward and feed back control in complex production and packaging machinery

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2 Author(s)
Aust, S. ; Dept. of Comput. Sci., Clausthal Univ. of Technol., Clausthal-Zellerfeld, Germany ; Richter, H.

Since production and packaging machinery with hundreds of sensors and actuators get faster and more complex at the same time, new demands come up to the real-time capacity of the machinery's controller. This article takes an analysis of timing problems caused by the commonly used time-slicing of the CPU as a task scheduling strategy and its effects on the real-time behavior of complex PLC programs. Furthermore, previous studies on reconfigurable FPGA based controller hardware are discussed. In conclusion we suggest a design approach for a scalable multi-processor architecture based on FPGA technology. Thereby the main focus of our design is set to the real-time capacity of the multi-task controller.

Published in:

World Automation Congress (WAC), 2010

Date of Conference:

19-23 Sept. 2010

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