Performance Level Validation of the Machinery Control System / Walidacja Poziomu Zapewnienia Bezpieczeństwa Przez Systemy Sterowania Maszynami

Abstract An important role among protective means play the elements of control systems performing safety functions. When the validation process of a safety performance level(PL) achieved by those systems is conducted properly one can draw the conclusion that any defect appearing in those systems would not cause the loss of safety functions. The paper presents formalized validation of the PL procedures for different categories and PL’s for introducing into the computer program which makes more efficient all the operations involved into the validation and documentation processes of safety performance level achieved by machine control systems.