Safety Architecture & Performance Level Certifier (2D)

Robot safety certification isn't just about the collision physics of one impact — it's about proving, on paper, that a control system's architecture is reliable enough for the risk it guards against. This 2D simulator turns the ISO 13849-1 reliability calculation into three linked, always-visible panels: a pannable channel-flow diagram animating fault pulses through a single or dual safety channel, a log-scale PFH_d gauge that bands the computed failure rate straight into a Performance Level, and an explicit risk-graph tree that shows the full Severity × Frequency × Avoidance decision path to the required PL_r. Pick a control category from a bare single channel (B) up to a fully diagnosed dual-channel design (4), tune the mean time to dangerous failure, the diagnostic coverage and the common-cause-failure score, and watch a passing versus failing certification play out across all three panels at once.