caa a22 4500 606159576 CHVBK 20210128100625.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00521-014-1754-2 doi (NATIONALLICENCE)springer-10.1007/s00521-014-1754-2 Black box modeling of PIDs implemented in PLCs without structural information: a support vector regression approach [Elektronische Daten] [Robert Salat, Michal Awtoniuk] In this report, the parameters identification of a proportional-integral-derivative (PID) algorithm implemented in a programmable logic controller (PLC) using support vector regression (SVR) is presented. This report focuses on a black box model of the PID with additional functions and modifications provided by the manufacturers and without information on the exact structure. The process of feature selection and its impact on the training and testing abilities are emphasized. The method was tested on a real PLC (Siemens and General Electric) with the implemented PID. The results show that the SVR maps the function of the PID algorithms and the modifications introduced by the manufacturer of the PLC with high accuracy. With this approach, the simulation results can be directly used to tune the PID algorithms in the PLC. The method is sufficiently universal in that it can be applied to any PI or PID algorithm implemented in the PLC with additional functions and modifications that were previously considered to be trade secrets. This method can also be an alternative for engineers who need to tune the PID and do not have any such information on the structure and cannot use the default settings for the known structures. The Author(s), 2014 Support vector regression nationallicence Programmable logic controller nationallicence PID nationallicence Salat Robert Department of Production Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787, Warsaw, Poland aut Awtoniuk Michal Department of Production Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787, Warsaw, Poland aut Neural Computing and Applications Springer London 26/3(2015-04-01), 723-734 0941-0643 26:3<723 2015 26 521 https://doi.org/10.1007/s00521-014-1754-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00521-014-1754-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Salat Robert Department of Production Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787, Warsaw, Poland aut NATIONALLICENCE 700 1- Awtoniuk Michal Department of Production Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787, Warsaw, Poland aut NATIONALLICENCE 773 0- Neural Computing and Applications Springer London 26/3(2015-04-01), 723-734 0941-0643 26:3<723 2015 26 521