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  • BSI
    BS EN 61784-3:2016 Industrial communication networks. Profiles - Functional safety fieldbuses. General rules and profile definitions
    Edition: 2016
    $538.63
    / user per year

Description of BS EN 61784-3:2016 2016

This part of the IEC 61784‑3 series explains some common principles that can be used in the transmission of safety-relevant messages among participants within a distributed network which use fieldbus technology in accordance with the requirements of IEC 61508 series 1 for functional safety. These principles are based on the black channel approach. They can be used in various industrial applications such as process control, manufacturing automation and machinery.

This part 2 and the IEC 61784‑3‑x parts specify several functional safety communication profiles based on the communication profiles and protocol layers of the fieldbus technologies in IEC 61784‑1 , IEC 61784‑2 and the IEC 61158 series. These functional safety communication profiles use the black channel approach, as defined in IEC 61508 . These functional safety communication profiles are intended for implementation in safety devices exclusively.

NOTE 1

Other safety-related communication systems meeting the requirements of IEC 61508 series can exist that are not included in this standard.

NOTE 2

It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres.

All systems are exposed to unauthorized access at some point of their life cycle. Additional measures need to be considered in any safety-related application to protect fieldbus systems against unauthorized access. The IEC 62443 series will address many of these issues; the relationship with the IEC 62443 series is detailed in a dedicated subclause of this part.

NOTE 3

Additional profile specific requirements for security can also be specified in IEC 61784‑4 3 .

NOTE 4

Implementation of a functional safety communication profile according to this part in a device is not sufficient to qualify it as a safety device, as defined in IEC 61508 series.

NOTE 5

The resulting SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system.



Standard NumberBS EN 61784-3:2016
TitleIndustrial communication networks. Profiles - Functional safety fieldbuses. General rules and profile definitions
StatusWithdrawn
Publication Date2016-09-30
Withdrawn Date2020-09-07
Replaced ByBS EN 61784-3:2016+A1:2017
Identical National Standard OfEN 61784-3:2016, IEC 61784-3:2016
DescriptorsData transfer, Interfaces (data processing), Open systems interconnection, Data transmission, Process control, Fieldbus, Safety, Communication networks, Industrial, Bus networks, Automatic control systems, Data processing, Computer networks, Data link layer (OSI)
ICS25.040.40 Industrial process measurement and control, 35.100.05 Multilayer applications
CommitteeGEL/65/3
ISBN978 0 580 85166 7
PublisherBSI
Pages86

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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