What is BS EN IEC 61784-5-3 - Installation of fieldbuses about?
BS EN IEC 61784-5-21 is a part of IEC 61784 that specifies the installation profile for CPF 3 (PROFIBUS/PROFINET)1. The installation profile is specified in the annexes. These annexes are read in conjunction with IEC 61918:2018.
Fieldbus is an industrial network system used in real-time distributed control that helps in connecting instruments in a manufacturing plant. Fieldbus works on a network structure that typically specifies the installation process. BS EN IEC 61784-5-3 gives you an overview of installation planning, implementation, installation verification, and installation acceptance test.
Who is BS EN IEC 61784-5-3 - Installation of fieldbuses for?
BS EN IEC 61784-5-3 on Installation of fieldbuses is useful for:
- The IT industry / Software programmers  
- Internet engineering task forces   
- The automation industry  
- Internet service providers   
- The telecommunication industry 
Why should you use BS EN IEC 61784-5-3 - Installation of fieldbuses?
BS EN IEC 61784-5-3 as a part of the IEC 61784 series is produced to facilitate the use of communication networks in industrial control systems. IEC 61918:2018 provides the common requirements for the installation of communication networks in industrial control systems. This installation profile standard provides the installation profiles of the communication profiles (CP) of a specific communication profile family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by supplementing, modifying, or replacing the other requirements. For general background on fieldbuses, their profiles, and the relationship between the installation profiles specified in BS EN IEC 61784-5-3, see IEC 61158-1. Each CP installation profile is specified in a separate annex of BS EN IEC 61784-5-3. Each annex is structured exactly as the reference standard IEC 61918 for the benefit of the persons representing the roles in the Fieldbus installation process as defined in IEC 61918 (planner, installer, verification personnel, validation personnel, maintenance personnel, administration personnel).
By reading the installation profile mentioned in BS EN IEC 61784-5-3 in conjunction with IEC 61918, you will immediately know which requirements are common for the installation of all CPs and which are modified or replaced. The conventions used to draft BS EN IEC 61784-5-3 are defined in Clause 5. The provision of the installation profiles in one standard for each CPF (for example IEC 61784-5-3 for CPF 3) allows readers to work with standards of a convenient size.
What’s changed since the last update?
BS EN IEC 61784-5-3:2018 is the UK implementation of EN IEC 61784-5-3:2018 and supersedes BS EN 61784-5-3:2013, which will be withdrawn on 4 October 2021.
The technical changes as compared to the third edition published in 2013 are:
- An addition of 4-pair cabling (see C.4.4.1.2.1and C.5.3.2)
- An addition of the connector M12 X-Coding (see C.4.4.2.2)
- An addition of the definition of End-to-end links (see C.4.4.3.1)
- A revision of Table C.17 (see C.5.2.1)
- A formula for the NEXT limits of End-to-end links (see C.6.3.2.1.2)
