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IEC 61139-2:2022 (EN-FR)

Industrial networks - Single-drop digital communication interface - Part 2: Functional safety extensions

Standard Details

IEC 61139-2:2022 specifies the extensions to SDCI in IEC 61131-9 for functional safety. This comprises:
• a standardized OSSDe interface for redundant switching signals based on IEC 61131-2,
• minor modifications/extensions to state machines of SDCI to support the safety operations,
• a lean functional safety communication protocol on top of the standard SDCI communication which is a black channel according to IEC 61784-3:2021,
• protocol management functions for configuration, parameterization, and commissioning,
• IODD extensions for functional safety,
• a Device tool interface to support Dedicated Tools according to functional safety standards.
This document does not cover:
• communication interfaces or systems including multi-point or multi-drop linkages,
• communication interfaces or systems including multi-channel or encrypted linkages,
• wireless communication interfaces or systems,
• integration of SDCI-FS into upper-level systems such as fieldbuses/FSCPs.

General Information

Status : ACTIVE
Standard Type: Main
Document No: IEC 61139-2:2022 (EN-FR)
Document Year: 2022
Pages: 405
Edition: 1.0
  • ICS:
  • 25.040 Industrial automation systems

Life Cycle

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IEC 61139-2:2022 (EN-FR)
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