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Functional Safety of Automated Systems

When programmable systems are used for machine or process automation it is essential that the functional safety of such systems is considered in detail at the outset of a development project. Safewell can assist by providing full technical management.

Safety Awareness

Are you Aware? A key question is to ask whether the programmable system, such as a PLC, is to be tasked with mitigation of known machine operation or process safety risks.

If the answer to this question is yes a functional safety assessment must be carried out to determine the level of risk reduction required in the system in accordance with the International Standard IEC61508. The standard covers "Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems (E/E/PE, or E/E/PES)";. For more details visit the 'Standards' section.

SafeProcess Press Emergency Stop

When using programmable systems to mitigate risks IEC61508 outlines the life cycle obligation to systematically manage the safety of the system at all stages of the system lifecycle from system concept to final decommissioning.

This is a specialist task requiring input from everyone involved in the specification, design, development, programming, testing, implementation, commissioning and lifecycle support of the completed system.

During the assessment, a Safety Requirements Specification must be developed. This is a formally approved document which feeds into the development of the Functional Design Specification.

Safewell can assist clients to manage the functional safety aspects of the automated system development within the context of the Safewell SafeProcess. pdf Download more information. (2.64 MB)

Safewell is already helping oil and gas operators and commercial diving organisations to manage this risk in their business