PC software for safety engineering

The SiSteMa software supports the user with safety-related calculations in accordance with EN ISO 13849-1

The SiSteMa safety engineering software is provided to the user as freeware by BGIA (German Institute for Occupational Health and Safety). Leuze electronic has supplemented the software with a manufacturer-specific database with all the safety-related parameters of selected Leuze safety sensors and control modules that SisteMa requires. The SiSteMa program version with the Leuze Component Library (in German and English) can be downloaded free of charge at www.leuze.com/sistema.

SiSteMa is a BGIA-developed PC software for calculating and evaluating the safety of machine safety-related control systems (SRP/CS) within the scope of EN ISO 13849-1. On the basis of the control architectures specified in section 6 of this standard, the program enables automated calculation of the reliability values and the achieved performance levels (PL). An integrated wizard explains the basic functions to the user, and guides them step-by-step through the project. The relevant parameters for this evaluation are entered incrementally and transparently via input masks. Tediously looking up values in bodies of tables and time-intensive calculations with formulas are dispensed with, because the software provides the necessary values.

The calculated results are immediately visible after the data has been entered. The user can therefore efficiently verify whether or not the achieved performance level (PL) of the control component they implemented corresponds with the required performance level (PLr) determined by the risk assessment for this safety function. The effects of parameter changes on the performance level of the entire system can also be presented.