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PROFINET Specification



Overview and guidance for PROFINET specifications
IEC 61158-1

This document provides the overview and guidance how the IEC 61158 series is structured
and how it is related to the profile documents in the IEC 61784 series.

Version: 2.3
Order No.: 2.702
Language: English

Application layer services for decentralized periphery
IEC 61158-5-10

The application service is provided by the application protocol making use of the services available from the data-link or other immediately lower layer. This document defines the application service characteristics that fieldbus applications and/or system management may exploit.

Version: 2.4MU2
Order No.: 2.712
Language: English


Application layer protocol for decentralized periphery
IEC 61158-6-10

The application protocol provides the application service by making use of the services available from the data-link or other immediately lower layer. The primary aim of this document is to provide a set of rules for communication expressed in terms of the procedures to be carried out by peer application entities (AEs) at the time of communication.

Version: 2.4MU2
Order No.: 2.722
Language: English


Profiles for decentralized periphery
IEC 61784–2

This part of IEC 61784 provides additional Communication Profiles (CP) to the existing Communication Profile Families (CPF) of IEC 61784–1. These communication profiles are called Real-Time Ethernet communication profiles.

Version: 2.4MU2
Order No.: 2.742
Language: English


Main difference to V2.3Ed2MU5 is the integration of Conformance Class “D” to specify PROFINET over TSN.

Main differences to V2.4MU1 are:

* Integration of IEEE 802 end-station, bridged end-station and bridge models
* Adjustment to definitions of TSN industrial profile
* Class 2 of Security Integration in PROFINET

Draft 2.4MU3 mainly focuses on three topics

  1. Complete security integration (aligned to IEC/IEEE 60802)
  2. IEC/IEEE 60802 conformant end station, bridge, and bridged end station model
  3. Enhancements for APL support – avoiding congestion loss

More information about differences between V2.4MU2 and d2.4MU3 will be found in file "Changes-PN-Spec_v24MU2_to_v24MU3.pdf" below.


New Drafts for review:

Version: d2.4MU3
Order No.: 2.712 / 2.722 / 2.742
Language: English

These drafts are published for testing and review only. They must not be used for development purposes.

Comments to be submitted to  until February 09, 2022.


PROFINET V2.2  is specified in IEC61158-6-10 Ed2.0, IEC61158-5-10 Ed2.0 and IEC61784-2 Ed2.0.
These documents can be purchased from the IEC website by using the following link:

The vendors who provide products with Media Redundancy functionality are authorized to make electronic copies of the attached (ASCII readable)
LLDP-EXT-IEC61158-TYPE10-MIB file (contained in the 7z file) as well as to publish them on their websites.

This area is for members only. Please login to access this download.
# Date Filename Type Size
17/11/2010 Overview-for-PI-specs_2702_V23_Oct10.pdf pdf 720 KB
02/06/2021 PN-AL-services_2712_V24MU2_Apr21.pdf pdf 7 MB
02/06/2021 PN-AL-protocol_2722_V24MU2_Apr21.pdf pdf 10 MB
02/06/2021 PN-Profiles_2742_V24MU2_Apr21.pdf pdf 2 MB
29/04/2020 MIBs.7z 7z 14 KB
06/11/2020 LLDP-EXT-IEC61158-TYPE10-MIB.mib mib 73 KB
08/11/2021 PN-AL-services-2712-d24MU3-Oct21.pdf pdf 5 MB
08/11/2021 PN-AL-protocol-2722-d24MU3-Oct21.pdf pdf 8 MB
08/11/2021 PN-Profiles-2742-d24MU3-Oct21.pdf pdf 2 MB
08/11/2021 Changes-PN-Spec_v24MU2_to_v24MU3.pdf pdf 65 KB

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