Safety Systems

SIL ratings comparison diagram showing SIL 2 (1oo2 voting with redundant logic solver) versus SIL 3 (2oo3 voting with TMR logic solver) safety instrumented system architectures

SIL Ratings Explained: SIL 1, 2, 3 in Practice — The Best Practitioner Guide for 2026

Daniel Reed / June 7, 2026

I’ve sat through more SIL assessment workshops than I can count. Operations, engineering, safety, and the SIS vendor in the […]

HAZOP and LOPA workflow guide word matrix showing systematic application of NO, MORE, LESS, REVERSE, and AS WELL AS guide words to process parameters to identify hazardous deviations

HAZOP and LOPA Explained: The Best Practitioner Guide for 2026

Daniel Reed / June 7, 2026

The first HAZOP I ever sat in ran for three weeks on a gas-to-liquids facility in Africa. I was the

Safety instrumented system architecture diagram showing the three fundamental layers — sensors, logic solver, and final elements — separate from the BPCS as required by IEC 61511

What Is a Safety Instrumented System? The Best Practitioner Guide for 2026

Daniel Reed / June 7, 2026

I’ve worked with all three major safety instrumented system platforms in production environments. Triconex on an offshore brownfield in Africa