Program komputerowy ProSIL do wspomagania zarządzaniem bezpieczeństwa funkcjonalnego

In this article a prototype ProSIL software system for computer-aided functional safety management is discribed. The software consists of three modules for: determination of the required SIL level (ProSILen), veryfication of the SIL level (ProSILver), and layer of protection analysis (ProSIL/LOPA). In ProSIL the methods concerning functional safety analysis in the process of the design and operation of Safety Instrumented Systems (SIS) are implemented according to PN-EN 61508 and PN-EN 61511 standards, and some new methods, e.g. the calibrated risk graph method for determining required safety integrity level (SIL) based on the risk assessment. Moreover, methods of veryfying the SIL level of SIS. The Layer of Protection Analysis (LOPA) method with regard to Human Reliability Analysis (HRA) are also included in the software.