EN 61784-3-2:2017

FOREWORD
0 Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols, abbreviated terms and conventions
4 Overview of FSCP 2/1 (CIP Safety[TM])
5 General
6 Safety communication layer services
7 Safety communication layer protocol
8 Safety communication layer management
9 System requirements
10 Assessment
Annex A (informative) - Additional information for
        functional safety communication profiles of CPF 2
Annex B (informative) - Information for assessment
        of the functional safety communication profiles of CPF 2
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 61784 3-2:2016 specifies a safety communication layer (services and protocol) based on CPF 2 of IEC 61784-1, IEC 61784-2 and IEC 61158 Type 2. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This safety communication layer is intended for implementation in safety devices only. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. The main changes with respect to the previous edition are listed below (and highlighted in yellow in this document):- Added detailed requirements for use of FSCP 2/1 in conjunction with CP 16/3 (see 4.1, 6.4.3, 6.5.3, 8.2, 8.13, and miscellaneous references when referencing CPF 2 networks);- Defined object class section keywords for safety to EDS file definition in 8.10.2.1;- New sections on safety CRC overview in 7.1.2.1 and Rollover counts for EF format in 7.4;- Corrections to PFH calculations in 9.5.2;- Change from MACID to NodeID as general reference to network identifier.