ČSN EN IEC 61139-2 (183001)

The category - similar standards:

Industrial automation systems

Annotation of standard text ČSN EN IEC 61139-2 (183001):

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