62443-1-1

IEC 62443-1-1 — Concepts and models

Introduces the common terminology, concepts and models (including zones and conduits) used throughout the rest of the series of standards.

For which role

Everyone working with the series of standards: asset owners, integrators, suppliers and auditors.

Key topics

•Basic concepts: asset, zone, conduit, security level
•Reference model for industrial automation systems
•Relationship between safety and security

Expected results

•A shared conceptual framework between all parties involved
•Basis for consistent application of later parts of the standard

Relationship to other parts of the standard

Forms the basis on which all other parts of IEC 62443 build.

Practical example from the energy sector

A grid operator uses the terminology from this part to communicate unambiguously in tenders with system integrators about zones and conduits within a substation.