The document discusses current functional safety standards for machinery, specifically ISO 13849-1 and IEC 62061. It notes that while both standards have similar basic requirements, there are differences in detail. It is intended that the standards will be combined into a single standard, ISO/IEC 17305. The presentation will explain techniques for complying with the current standards in preparation for the new single standard. It discusses key aspects of ISO 13849-1 and IEC 62061 such as performance levels, safety integrity levels, and requirements for realization and verification of safety functions. Checklists are also provided.
Bron: Josse Brys (HIMA)
Industrial Control Systems (ICS)
Safety Instrumentals Systems (SIS)
What makes HIMA unique?
Safequards your plant / operations
Functional safety standards
SIL Safety Integrety Level
SIL levels
What is safety?
Cyber secure down to its core
Zones & conduits (IEC 62443)
www.regeltechnieken.org
….
Since 2007 there has been a choice of harmonised standards
to use for Functional Safety in the machinery sector.
The choices are:
ISO standard EN ISO 13849
IEC standard EN 62061
source TUV-SUD
www.regeltechnieken.org
www.ie-net.be/reg
Bron: Josse Brys (HIMA)
Industrial Control Systems (ICS)
Safety Instrumentals Systems (SIS)
What makes HIMA unique?
Safequards your plant / operations
Functional safety standards
SIL Safety Integrety Level
SIL levels
What is safety?
Cyber secure down to its core
Zones & conduits (IEC 62443)
www.regeltechnieken.org
….
Since 2007 there has been a choice of harmonised standards
to use for Functional Safety in the machinery sector.
The choices are:
ISO standard EN ISO 13849
IEC standard EN 62061
source TUV-SUD
www.regeltechnieken.org
www.ie-net.be/reg
Most industrial safety-critical systems are developed and validated following safety standards. However even though all safety standards address similar concerns with similar objectives, they are also domain-specific standards. The presentation results from the activity of a working group (formerly CG2E, now part of the recently set-up Embedded France) gathering industrial safety experts from aeronautics, automotive, industrial automation, nuclear, railway and space. The lecture will combine a presentation focused on one industry specific standard (the recent ISO 26262 for automotive), and complementary perspective in comparison with the standards in the other five mentioned domains. After the presentation of the history and position and the various regulation regimes, we will highlight some more technical topics e.g., integrated or external safety systems, fault prevention vs. fault tolerance, objectives vs. means prescription, probabilistic vs. deterministic arguments and the notion of criticality, integrity or assurance levels.
A recent regulation approved by the European Parliament laid out the requirements for type approvals of motor vehicles on their safety aspects calls for the introduction of these new safety features as a prerequisite. As such, the need for an internationally recognized standard for safety critical systems becomes more crucial to measure how safe a system is.
lain Engels
Product Manager Level & Safety Applications Consultant
Endress+Hauser
Alain werkt bij Endress+ Hauser sinds 1984.
Hij heeft verschillende functies gehad zoals Product Manager van Druk, Temperatuur en Niveaumetingen.
In paralell was hij ook Industrie specialist voor Chemie & Oil & Gas en ATEX, SIL en PED.
TÜV SÜD on functional safety for multi-core architecturesTorben Haagh
With the importance of successful and efficient implimentation of functional safety continuing to grow on a global scale, ensuring the safey of multi-core architectures poses the next big challenge.
Dr. Andreas Bärwald, Vice President Global Strategy and Operations Automotive, TÜV SÜD Automotive GbmH joined us at last year’s event to give us exclusive case study insight as to how three leading automotive companies achieved this aim.
Read more here:
http://bit.ly/Presentation_TUV-SUD
This slidedeck goes through the technology involved automatiing tests throught the design cycle (MIL, SIL, HIL and test cells). It also touches on topics like lights-out-testing and links to requirements databases.
Siemens s7 300-400-pid temperature controlDien Ha The
Siemens,
Catalog Thiết Bị Tự Động Siemens, Catalog Thiết Bị Tự Động
Catalog Phụ Kiện Siemens, Catalog Phụ Kiện,
Catalog Siemens, Catalog,
https://www.dienhathe.com,
Chi tiết các sản phẩm khác của Siemens tại https://dienhathe.com
Xem thêm các Catalog khác của Siemens tại https://dienhathe.info
Để nhận báo giá sản phẩm Siemens vui lòng gọi: 0907.764.966
Most industrial safety-critical systems are developed and validated following safety standards. However even though all safety standards address similar concerns with similar objectives, they are also domain-specific standards. The presentation results from the activity of a working group (formerly CG2E, now part of the recently set-up Embedded France) gathering industrial safety experts from aeronautics, automotive, industrial automation, nuclear, railway and space. The lecture will combine a presentation focused on one industry specific standard (the recent ISO 26262 for automotive), and complementary perspective in comparison with the standards in the other five mentioned domains. After the presentation of the history and position and the various regulation regimes, we will highlight some more technical topics e.g., integrated or external safety systems, fault prevention vs. fault tolerance, objectives vs. means prescription, probabilistic vs. deterministic arguments and the notion of criticality, integrity or assurance levels.
A recent regulation approved by the European Parliament laid out the requirements for type approvals of motor vehicles on their safety aspects calls for the introduction of these new safety features as a prerequisite. As such, the need for an internationally recognized standard for safety critical systems becomes more crucial to measure how safe a system is.
lain Engels
Product Manager Level & Safety Applications Consultant
Endress+Hauser
Alain werkt bij Endress+ Hauser sinds 1984.
Hij heeft verschillende functies gehad zoals Product Manager van Druk, Temperatuur en Niveaumetingen.
In paralell was hij ook Industrie specialist voor Chemie & Oil & Gas en ATEX, SIL en PED.
TÜV SÜD on functional safety for multi-core architecturesTorben Haagh
With the importance of successful and efficient implimentation of functional safety continuing to grow on a global scale, ensuring the safey of multi-core architectures poses the next big challenge.
Dr. Andreas Bärwald, Vice President Global Strategy and Operations Automotive, TÜV SÜD Automotive GbmH joined us at last year’s event to give us exclusive case study insight as to how three leading automotive companies achieved this aim.
Read more here:
http://bit.ly/Presentation_TUV-SUD
This slidedeck goes through the technology involved automatiing tests throught the design cycle (MIL, SIL, HIL and test cells). It also touches on topics like lights-out-testing and links to requirements databases.
Siemens s7 300-400-pid temperature controlDien Ha The
Siemens,
Catalog Thiết Bị Tự Động Siemens, Catalog Thiết Bị Tự Động
Catalog Phụ Kiện Siemens, Catalog Phụ Kiện,
Catalog Siemens, Catalog,
https://www.dienhathe.com,
Chi tiết các sản phẩm khác của Siemens tại https://dienhathe.com
Xem thêm các Catalog khác của Siemens tại https://dienhathe.info
Để nhận báo giá sản phẩm Siemens vui lòng gọi: 0907.764.966
Unlike other industries, detailed discussions about functional safety in the automotive industry only began a few years ago. One of the reasons was that there was a prevailing view that the risks posed as a result of mechanical failures are still within the control of the driver.
You can also find interesting articles here: http://bit.ly/steering-articles
Regulatory modifications have raised important issues in design and use of industrial safety systems. Certain changes in IEC 61508, now being widely implemented, mean that designers and users who desire full compliance must give new consideration to topics such as SIL levels and the transition to new methodologies.
Introduction to Functional Safety and SIL CertificationISA Boston Section
This overview session will acquaint attendees with the key concepts in the IEC 61508 standard for functional safety of electrical/electronic and programmable electronic systems. An introduction is provided to safety integrity levels (SIL), the safety lifecycle and the requirements needed to achieve a functional safety certificate. Information will be provided on documentation requirements and an introduction to the basic objectives of product design for functional safety.
Roberta Nelson Shea presents the new Robotic safety standard RIA R15.06-2012 at Applied Manufacturing Technologies Technoloigy Fair 2014. The new robotic safety standard goes into effect January 2015. Learn how to comply today,
SIA Journée d'étude : NORME ISO 26262 Sécurité fonctionnelle électronique automobile , 04-03-2018
Cédric Heller, DQI/DSEE, French Delegate of TC22/SC32/WG8
Complying with New Functional Safety StandardsDesign World
Better understand functional safety and how it applies to the equipment you build and use. As EN ISO 13849-1 (EN 954) and IEC 62061 become more prevalent in North American design and industry segments request Safety Integrity Level (SIL), Control Category and Protection Level (PL) ratings, our approach to machine safety stands to change.
This webinar provides practical advice for adopting these new standards by providing an overview of:
- Market trends
- Applicable standards
- Considerations for applying relevant standards
- Determining your level of machine safety design
Hosted by Design World, this educational webcast helps original equipment manufacturers and end users better understand functional safety and how it applies to the equipment you build.
Knowing de right flow
Nicky Pollet
www.flowcor.be
GREFAN BENELUX
GEFRAN
Sensoren voor druk, positiethemperatuur en kracht
Automatisatie en componenten
FLOWCOR
Debiet en drukmeters en regelaars voor gas, vloeistof en damp/stoom toepassingen
Customize flow solutions
www.ie-net.be/reg
Bron: RITEC BVBA (www.ritec.be )
Voordracht oktober 2019
www.ie-net.be/reg
Wat is een breekplaat?
Kenmerken.
Wat is een breekplaathouder?
Waarom worden breekplaten toegepast?
Toepassingen.
Verschillende types breekplaten.
...
Bron: Marc Van de Sijpe (RITEC BVBA) Functie vlamdoversMESG Maximum Experimental Safe Gap Element Propagatie van een vlam in een leiding Drukval Internationale standaarden … Voordracht 2019 ie-net ingenieursvereniging vzw > Meer info: https://ie-net.be/reg
Bron: Marc Van de Sijpe (RITEC BVBA)
Functie vlamdoversMESG Maximum Experimental Safe Gap
Element
Propagatie van een vlam in een leiding
Drukval
Internationale standaarden
…
Voordracht 2019 ie-net ingenieursvereniging vzw
> Meer info: https://ie-net.be/reg
Bron: Stijn Dely (CGK Group)
Hoe maak ik de omgeving van mijn opslagtank veilig en efficiënt
Creëert een veilige omgevingDe correcte losprocedure
Veilig het product in uw tank verpompen en naar de verbruikers
Het opzetten van een pompsysteem
Keuze van de juiste pomp
Pompkast
www.regeltechnieken.org
Bron: Stijn Dely (CGK Group)
Wetgeving
Documenten en attesten
Checklist tankcontrole
Bespreking van 2 cases
Periodieke keuringen
Meer info www.regeltechnieken.org
No explosion from sparking
Three- application-oriented series
Sealings inserts replace EX sealing plugs
Optimum safety: EX & EMC protection
...
https://ie-net.be/reg
J Van Hemelen keuringsorganisme vzw
Presentatie van 18 november 2008 in het VIK-huis
Slides of the VIK lecture "Elektrische installaties in ruimtes met stofexplosiegevaar"
by Koen Van Hemelen on 18 november 2008 at VIK-huis
https://www.ie-net.be+reg
Bron: Koen Van Hemelen
J Van Hemelen keuringsorganisme vzw
Presentatie van 18 november 2008 in het VIK-huis
Slides of the VIK lecture "Elektrische installaties in ruimtes met stofexplosiegevaar"
by Koen Van Hemelen on 18 november 2008 at VIK-huis
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Cosmetic shop management system project report.pdf
Tuev sued-drives-and-controls-2014-presentation
1. Drives & Controls 2014 - Functional Safety of Machinery 1
Click to edit
Master text
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Functional Safety
Standards for
Machinery
Stewart Robinson
MIET MInstMC
2. Current Functional Safety Standards for Machinery
TÜV SÜD Product Service Slide 2Drives & Controls 2014 - Functional Safety of Machinery
• Since 2007 there has been a choice of harmonised standards
to use for Functional Safety in the machinery sector.
• The choices are:
– ISO standard EN ISO 13849-1
– IEC standard EN 62061.
• Whilst both standards have essentially the same basic
requirements there are differences in the detail of these
standards.
3. Current Functional Safety Standards for Machinery
TÜV SÜD Product Service Slide 3Drives & Controls 2014 - Functional Safety of Machinery
• The intention is that the standards will be combined into a
single standard at some point?
• The new standard will be ISO/IEC 17305
• This presentation will explain some of the techniques and
approaches that can be used now to comply with the current
standards whilst preparing for the introduction of a single
standard.
4. ISO13849-1 and IEC 62061
4Drives & Controls 2014 - Functional Safety of Machinery
6. Standards for Functional Safety
Source: BGIA Report 2/2008e
TÜV SÜD Product Service Slide 6Drives & Controls 2014 - Functional Safety of Machinery
7. EN ISO 13849-1
Source: BGIA Report 2/2008e
TÜV SÜD Product Service Slide 7Drives & Controls 2014 - Functional Safety of Machinery
8. ISO/IEC Technical reports
TÜV SÜD Product Service Slide 8Drives & Controls 2014 - Functional Safety of Machinery
• Technical reports were issued by both the IEC and ISO in 2010
• ISO/DTR 23849 and IEC/TR 62061-1
• “Safety-related control systems can be designed to achieve acceptable levels of
functional safety using either of the two standards by integrating non-complex
SRECS (safety-related electrical control system) subsystems or SRP/CS (safety-
related parts of a control system) designed in accordance with IEC 62061 and
ISO 13849-1, respectively.
• “Both standards can also be used to provide design solutions for complex
SRECS and SRP/CS by integrating electrical/electronic/programmable electronic
subsystems designed in accordance with IEC 61508.”
9. ISO/IEC Technical reports
TÜV SÜD Product Service Slide 9Drives & Controls 2014 - Functional Safety of Machinery
• “Both standards currently have value to users in the machinery sector and
benefits will be gained from experience in their use. Feedback over a reasonable
period on their practical application is essential to support any future initiatives to
move towards a standard that merges the contents of both IEC 62061 and
ISO 13849-1.”
• “Differences exist in detail and it is recognized that some concepts (e.g.
functional safety management) will need further work to establish equivalence
between respective design methodologies and some technical requirements.”
10. TÜV SÜD Product Service
IEC 62061 and ISO 13849 A cross reference guide
1 Concept
3 Hazard and risk analysis
4 Overallsafety requirements
5
Overallsafety requirements
allocation
2 Overallscope definition
Phases
1-5
Phases
6-16
This guide sets out to explain where
the details for different safety
lifecycle activities can be found in
the standards for the Machinery
Sector:
IEC 62061 and ISO 13849.
The overall safety lifecycle model
contained in IEC 61508 has been
used as the reference point.
To navigate click on one of the
buttons below and then click
on an individual phase
9 E/E/PE system safety
requirementsspecification
10 E/E/PE
Safety-related systems
Realisation
(see E/E/PE system
safety lifecycle)
6
Overall
operation
and
maintenan
ce planning
11 Other risk reduction
measures
Specificationand
Realisation
7
Overall
safety
validati
on
plannin
g
8
Overall
installation
and
commissionin
g planning
Overall planning
12 Overall installation and
commissioning
13 Overall safety validation
14 Overall operation,
maintenanceand repair
16 Decommissioning or
disposal
15 Overall modification
and retrofit
11. TÜV SÜD Product Service
Home
Phases
1-5
Phases
6-16
5
Objectives
To allocate the safety functions, contained in the specification for the overall safety requirements
(both the safety functions requirements and the safety integrity requirements), to the designated
E/E/PE safety related systems and other risk reduction measures; To allocate a safety integrity
level to each safety function to be carried out by an E/E/PE safety-related system.
IEC 61508
Part 1 Clauses
7.6.1
7.6.2
IEC 62061
Clause 5
5.2.1.3 – Specifications
for each SRCF shall
comprise the functional
requirement (5.2.3)and
the safety integrity
requirement (5.2.4)
ISO 13849
Clause 4
4.2.2 – For each safety
function the
characteristics and the
required performance
level shall be specified
Overall safety requirements allocation
12. EN ISO 13849-1 Annex A risk graph
TÜV SÜD Product Service Slide 12Drives & Controls 2014 - Functional Safety of Machinery
13. SIL Assignment Matrix
TÜV SÜD Product Service Slide 13Drives & Controls 2014 - Functional Safety of Machinery
• Probability of occurrence of harm (Cl)
Cl = Fr + Pr + Av
Frequency
Fr
Probability of occurence
Pr
Avoidance
Av
≤ 1 per hr 5 Common 5
<1 per hr to ≥ I day 5 Likely 4
< 1per day to ≥ 1 per 2 weeks 4 Possible 3 Impossible 5
< 1 per 2 wks to ≥ 1 per yr 3 Rarely 2 Rarely 3
< 1 per yr 2 Negligible 1 Likely 1
14. PLr Determination by matrix
TÜV SÜD Product Service Slide 14Drives & Controls 2014 - Functional Safety of Machinery
Consequences Severity
Class Cl
4-5 6-7 8-9 10-11 12-13 14-15
Death, losing
an eye or arm
4 PLc PLc PLd PLd PLe PLe
Permanent,
losing fingers
3 PLc PLc PLc PLd PLd PLe
Reversible,
medical attn.
2 PLb PLb PLb PLc PLd PLd
Reversible, first
aid
1 PLa PLa PLb PLb PLc PLc
May require recalibration!
For discussion/consideration
15. PL and SIL
TÜV SÜD Product Service Slide 15Drives & Controls 2014 - Functional Safety of Machinery
EN ISO 13849-1
Performance Level
(PL)
Average
probability of a
dangerous failure
per hour [1/h]
EN 62061
Safety Integrity
Level (SIL)
a ≥ 10-5 to < 10-4 no special safety
requirements
b ≥ 3 x 10-6 to < 10-5 1
c ≥ 10-6 to < 3 x 10-6 1
d ≥ 10-7 to < 10-6 2
e ≥ 10-8 to < 10-7 3
16. TÜV SÜD Product Service
Home
Phases
1-5
Phases
6-16
10
Objectives
To create E/E/PE safety related systems conforming to the specification for the E/E/PE system
safety requirements (comprising the specification for the E/E/PE system safety functions
requirements and the specification for the E/E/PE system safety integrity requirements).
IEC 61508
Part 1 Clauses
7.11.1; 7.11.2
Part 2 for Hardware
Part 3 for Software
IEC 62061
Included in Clause 6.
Control of systematic
faults is part of this
clause.
SRECS architecture is
described by subsystems
detailing Hardware Fault
Tolerance and Diagnostic
Coverage
ISO 13849
Clause 4.4 gives the
overall requirements.
Clause 6 describes
designated architectures
as categories (B, 1 – 4).
Categories state the
required behaviour of a
SRP/CS in respect of it’s
resistance to faults etc.
Realisation – Hardware design
17. EN ISO 13849-1 Categories
Designated Architectures
TÜV SÜD Product Service Slide 17Drives & Controls 2014 - Functional Safety of Machinery
Cat B & Cat 1
Cat 2
Cat 3 Cat 4
18. EN 62061 Architectures
TÜV SÜD Product Service Slide 18Drives & Controls 2014 - Functional Safety of Machinery
Subsystem A
Subsystem B
Subsystem C
Subsystem D
19. PFHD of the Function
TÜV SÜD Product Service Slide 19Drives & Controls 2014 - Functional Safety of Machinery
The PFHD of the Function is the sum of the PFHD of each of
the SRP/CS (subsystems) that make up the Function
DssnDssDssDssDtotal PFHPFHPFHPFHPFH ....321
Sensor Logic Actuator
Sensor
Sensor
Input Logic Output
Actuator
Actuator
20. Series alignment of Subsystems
TÜV SÜD Product Service Slide 20Drives & Controls 2014 - Functional Safety of Machinery
DactuatoricDDsensorDtotal PFHPFHPFHPFH log
SIL or PL
21. PFH Verification
TÜV SÜD Product Service Slide 21Drives & Controls 2014 - Functional Safety of Machinery
DeDeDeDssD TDCTDC })]1([
2
]2{[)1( 1
222 2
hPFH DD 1
8760
1
d
D
MTTF
PFHCategory 1
Or
Subsystem A
Subsystem D
22. Verification by software – Object types
SISTEMA recognizes seven different types of objects.
These can be regarded as the building- blocks from which a project is created.
TÜV SÜD Product Service Slide 22Drives & Controls 2014 - Functional Safety of Machinery
23. IFA SISTEMA – PL – EN ISO 13849-1
TÜV SÜD Product Service Slide 23Drives & Controls 2014 - Functional Safety of Machinery
24. Pilz PAScal – SIL – EN 62061 (and PL – EN 13849)
TÜV SÜD Product Service Slide 24Drives & Controls 2014 - Functional Safety of Machinery
25. Out of control
Why control systems go wrong and how to prevent failure?
(Out of control, 2nd edition 2003, Health & Safety Executive HSE – UK)
TÜV SÜD Product Service Slide 25Drives & Controls 2014 - Functional Safety of Machinery
26. Systematic failure
• Failure related in a deterministic way to a certain cause, which can only be
eliminated by a modification of the design or of the manufacturing process,
operational procedures, documentation or other relevant factors
– the safety requirements specification,
– the design, manufacture, installation, operation of the hardware, and
– the design, implementation, etc., of the software.
• Further information can be found in:
– EN ISO 13849-1, in particular in Annex G
– EN 62061, in particular Clause 6.4
TÜV SÜD Product Service Slide 26Drives & Controls 2014 - Functional Safety of Machinery
27. Check Lists
TÜV SÜD Product Service Slide 27Drives & Controls 2014 - Functional Safety of Machinery
Item Reference Yes No
Have all risks been reduced as far as possible by safe design
of the machine, and the use of fixed safeguards etc?
EN ISO 12100:2010
EN 953:1997
Have the consequences of systematic failures been fully taken
into account?
EN ISO 13849-1 Annex G
EN 62061 Clause 6.4
Have all risks that are to be reduced by Safety Related
Controls been identified?
EN ISO 13849-1 Clause 4.4
EN 62061 Clause 5.2
Have the Safety Requirements for each Safety Related Control
Function been correctly specified in terms of functional
requirements?
EN ISO 13849-1 Clause 5
EN 62061 Clause 6.6.2.1.6
Have the Safety Requirements for each Safety Related Control
Function been correctly specified in terms of performance
requirements?
EN ISO 13849-1 Clause 4.3 and Annex A
EN 62061 Clause 6.6.2.1.6 and Annex A
28. Check List part 2
TÜV SÜD Product Service Slide 28Drives & Controls 2014 - Functional Safety of Machinery
Item Reference Yes No
Has an appropriate architecture for the design of the safety
related controls been chosen?
EN ISO 13849-1 Clause 6
EN 62061 Clauses 6.6.2.1.2,3,7
Is performance data available for safety related components from:
1) The component manufacturer.
2) Reliable generic data
EN ISO 13849-1 Clause 4.5.2 and
Annexes C and D
EN 62061 Clause 6.7.7.2
Has the Diagnostic Coverage provided by the automatic tests
been correctly established?
EN ISO 13849-1 Annex E
EN 62061 Clause 6.8
Have the effects of Common Cause Errors been examined and
adequate measures to mitigate the consequences put in place?
EN ISO 13849-1 Annex F
EN 62061 Clause 6.7.8.3 and Annex F
Has the performance of the safety related control functions been
verified as meeting the required PL or SIL?
EN ISO 13849-1 Clause 4.7
EN 62061 Clause 6.6.3
Have the requirements for validation been adequately planned
and prepared?
EN ISO 13849-2
EN 62061 Clause 8
29. TÜV SÜD Product Service
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TÜV SÜD Drives & Controls 2014 - Functional Safety of Machinery Slide 29