Safety lifecycle management can prove challenging for upstream assets

摘要

Even though mandated by functional and process safety standards such as ISA-84 and ISA/IEC 61511, many automation and safety instrumented systems (SIS) vendors do not provide safety lifecycle management software that extends beyond the initial work performed to commission the SIS logic solver. For upstream assets, this initial work was likely to be performed in a different location than where the platform achieves its first oil. Therefore, when the owner-operator has achieved this important milestone, only the bare minimum safety instrumented function proof testing for the most critical protective and mitigative functions has been performed.