To support the EN ISO 13849-1 standard, BGIA, the German Institute for Occupational Health, has developed SISTEMA, a free-to-download software utility that developers and testers can use to evaluate the safety of the machine in the context of the standard.
The tool permits the designer to model the structure of the safety –related control components based on the designated architectures of the standard, permitting automated calculation of the reliability values with various levels of detail, including that of the attained PL
Using SISTEMA, relevant risk parameters are entered step-by-step into input dialogs. Each parameter change is reflected immediately on the user interface together with its impact on the whole system.
Schneider Electric publishes software libraries for its safety components which contain relevant reliability data, such as MTTFd. This can be imported into SISTEMA and combined, the two eliminate time-consuming consultation of tables and calculation of formulae and the final results can be printed out in a summary document.
Step by Step instructions...
1. Download SISTEMA software from the IFA website