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Measuring real time performances of PC-based industrial control systems

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2 Author(s)
Magro, M.C. ; Univ. of Genova -Italy, Genova ; Pinceti, P.

Control systems for industrial processes are more and more using PC-based platforms instead of dedicated devices such as controllers or PLCs. Software packages allow running a "soft PLC" on a normal PC with a general purpose operating system. These solutions present several advantages in terms of flexibility, communications, multi-vendor interfacing, and costs. On the other hand the use of multi-tasking operating systems does not guarantee a-priori respect of the time constrains that control applications present. The paper describes a procedure for measuring the time performances of a soft-PLC with different configurations and loading. Results of preliminary measures are presented and discussed.

Published in:

Emerging Technologies and Factory Automation, 2007. ETFA. IEEE Conference on

Date of Conference:

25-28 Sept. 2007