SISTEMA Analysis & ReportingSISTEMA Analysis & Reporting

The analysis is based on EN ISO 13849-1, the standard that SISTEMA is built around. The required PL comes from the machine risk assessment, which Prazamana carries out according to ISO 12100:2010.

The starting point is a description of the safety function. In practice, the analysis also needs the safety circuit drawings and the details and reliability data of the components used, and the required PL from the risk assessment. The team will confirm exactly what they need when scoping the work.

The report documents the modelled safety function, the calculated Performance Level, the verification of category and architecture, and whether the result meets the required PL. The exact format is agreed for each project, so please ask the team what you will receive. The documentation is suitable for technical files and audits.

It can be scoped for an existing machine, for example to verify the PL of an older safety circuit, if the circuit and component details are available. Please describe your machine to the team to confirm how it can be done.

The design needs to change until the required PL is met. Typical measures include changing the architecture or category, using components with higher reliability, improving diagnostics, or adding redundancy. The analysis is then repeated and documented. The right fix depends on your machine, so please discuss it with the team.