Functional Safety 2016

The Specialist Inspectors response

FMEDA report was over 10 years old and doesn’t

suitably consider any subsequent issues

Operating hours detailed for v3.22, installed

version in V3.8

Generic Prior Use argument by 3

party unlikely to

satisfy in regard to operating experience/ reliability

claims

Areas within the report are qualitative in nature

and not site/ operating environment specific and

are significantly out of date

Company advised to consider alternate measures

HSE Specialist Inspector said ‘No’ to the SIL 2

certificate

©ABBGroup

October23,2016|Slide25

©ABBGroup

October23,2016|Slide26

Who is BS EN 61511 written for?

The manufacturers are using a concept specified for equipment users

Manufacturers

and suppliers

of devices

BS EN 61508

Process Sector

Safety Instrumented

System Standards

Safety

instrumented

systems

designers,

integrators and

users

BSEN 61511