IEC 61158-6-2:2014 ED3

Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer protocol specification - Type 2 elements IEC 61158-6-2:2014 ED3

Publication date:   Aug 19, 2014

General information

99.60 Withdrawal effective   Jun 20, 2019



TC 65/SC 65C

International Standard

25.040.40   Industrial process measurement and control | 35.100.70   Application layer | 35.110   Networking



Language in which you want to receive the document.


IEC 61158-6-2:2014 defines the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5-2, and define the externally visible behavior associated with their transfer. This standard specifies the protocol of the Type 2 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545). This third edition cancels and replaces the second edition published in 2010 and constitutes a technical revision. The main changes are:
- Updates of definition used by the Time Sync object;
- Addition of "member" and object specific services in, 4.1.8, 4.1.10, 8.2;
- Removal of obsolete transport classes 4 to 6 in, and 9.3.9 to 9.3.12;
- Clarification of transport header formats in 4.1.4;
- Update of CM and MR PDUs in 4.1.5 to 4.1.7;
- Updates of Identity object PDUs in;
- Updates of Assembly object PDUs in;
- Updates of Time sync object PDUs in;
- Updates of Parameter object PDUs in;
- Updates of Connection Manager object PDUs in;
- Updates of message and connection paths in 4.1.9;
- Updates of object class codes in 4.1.10 and error codes in 4.1.11;
- Updates of data types in 4.2.4 and 5.2.3;
- Updates of the encapsulation abstract syntax in 4.3;
- Updates to the DLL mapping protocol machine 2 in Clause 11.

Life cycle


IEC 61158-6-2:2010 ED2


IEC 61158-6-2:2014 ED3
99.60 Withdrawal effective
Jun 20, 2019


IEC 61158-6-2:2019 ED4