IEC 62443
Zones and conduits: example substation
This visual shows an original, illustrative architecture of an electricity substation, from enterprise IT to process level.
Zones & conduits
IEC 62443 divides an IACS environment into zones with similar security needs. Communication between zones runs through controlled conduits.
Click a zone or conduit for more explanation.
ZONE — Group of assets with similar security requirements
CONDUIT — Controlled communication between zones
SL-T — Target security level of a zone
This diagram is a simplified example of zones and conduits within an electricity/substation environment. The actual zoning and the required Security Level must always be determined on the basis of the specific architecture and risk analysis.