Glossary

Status: October 2026

CE marking

The manufacturer's declaration that a product meets the applicable EU requirements

CEN / CENELEC

European standards organisations for general and electrotechnical standardisation

CTS (conformance test suite)

Set of digital test specifications, test vectors, and validation procedures to demonstrate conformity with a specification; the normative artefact at EHRP (informational, no physical hardware provided)

CWA (CEN/CENELEC Workshop Agreement)

A formally published document developed in an open workshop; not for safety topics

DKE

German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Environment class

Axis of the classification scheme: application environment with its own qualification regime, e.g. E-HYG for hygiene and washdown areas

Grade

Axis of the classification scheme: load class G0 to G3, including temperature range

Harmonised standard

European standard whose reference is published in the Official Journal of the EU and which gives a presumption of conformity

Integrity level

Axis of the classification scheme: how well a safety function is verified

Machinery Regulation

Regulation (EU) 2023/1230; applies from 20 January 2027 and replaces the Machinery Directive 2006/42/EC

PL a to e

Performance Level under ISO 13849-1, a measure of the reliability of a safety function

Plugfest

Event at which manufacturers test their components together for interoperability

Reference implementation

Working implementation of a specification that shows it can be implemented; not normative at EHRP

SIL 1 to 3

Safety Integrity Level under IEC 62061

TSC (Technical Steering Committee)

Technical governing body; releases specification versions

Type-C standard

Product-specific safety standard for a particular type of machine