摘要:This paper presents the use of the results of the shifting method of relay feedback identification for tuning the Proportional-Integral-Derivative controllers. Parameters of the second order plus time delay models estimated by the shifting method of relay feedback identification were used to compute controller parameters. Behaviour of closed loop systems with tuned controllers was tested and compared for three simulated systems and one real laboratory system. All tests were performed on the programmable logic controller Tecomat Foxtrot. In all the studied cases the use of the tuned controllers resulted in correct control of the system.