Sistema
A Software Tool for the Easy Application of the Control Standard
EN ISO 13849-1
Sistema means "Safety Integrity Software Tool for the Evaluation of Machine Applications" and is a software tool which offers support in the evaluation of safety within the context of EN ISO 13849-1 including calculating Performance Levels (PL). It has been developed by and released for use by BGIA – Institute for Occupational Safety & Health of the German Social Accident Insurance. This is the German Governments Health and Safety Executive.
Visit Sistema website to download software
http://www.dguv.de/bgia/en/pra/softwa/sistema/index.jsp