Engineering guide
Determine the required Performance Level
Record why a safety function needs its target level.
Reviewed 2026-11-04 · Engineering interpretation · authoring reviewed
Trace the decision
This original review workflow begins with a named hazard and safety function. Identify the applicable robot-specific requirements and risk-assessment method, then record the target and its reasoning. Document the task, severity, exposure and opportunity to avoid harm where the selected method uses those factors. Do not assign one target solely from the presence of a robot.
Keep the target separate from the result
PLr is the required target in this project’s terminology. Keep it in a field separate from achieved PL, with a source locator and reviewer. A missing application assessment remains an evidence gap in all three worked cases. Exact normative clause pointers await a qualified review of the licensed standards.
Sources & editions
Robot Safety Forum original engineering notes
Initial publication edition 2026-11-04
Original target-decision checklist
OSHA Technical Manual, Section IV Chapter 4 ↗
Web edition checked 2026-11-04
VII.1 Robot Application RA General Process
ISO 13849-1:2023, Safety-related parts of control systems, Part 1 ↗
Fourth edition, 2023-04
Bibliographic reference only, full-text clause mapping pending