IEC 61139-2 Ed. 1.0 b:2022

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

International Electrotechnical Commission, 08/01/2022

Publisher: IEC

File Format: PDF

$256.00$512.00

Description

Published:01/08/2022

Pages:410

File Size:1 file , 16 MB

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This part of IEC 61139 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.

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