IACS UR E27 OT/IT Integration Screen

Checklist for the E27 onboard-system requirements: secure-by-design, authentication, patching, monitoring, supplier assurance.

CyberIACS E27

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{E27 score} = \sum \text{Controls met}

Symbol	Meaning	Unit
$Controls$	Five E27 pillars

Source: IACS UR E27; IEC 62443 - Industrial automation & control systems security

Checklist for the E27 onboard-system requirements: secure-by-design, authentication, patching, monitoring, supplier assurance.