thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Application & OT Security · Advanced

IEC 62351

A series of IEC standards that add security to power system communication protocols such as IEC 61850, IEC 60870-5-104 and DNP3.

Definition

IEC 62351 specifies TLS profiles, authentication for GOOSE and Sampled Values messages, role-based access control, key management and network and system management for power systems. Adoption has been gradual because of legacy device constraints and latency requirements.

Example

A utility enables IEC 62351 TLS profiles for its IEC 104 links to substations.

Exam tip

Security add-on for grid protocols; pair with 61850 and 104.

Related terms