Functional Safety and Cyber Security International Standards Update

This update covers various international standards related to functional safety and cyber security, including protocols like CSMA/CD, CSMA/CA, TSN, as well as standards for safety engineering tools and safety modules. It also highlights the collaboration with BSI standards for developing industry standards and important updates in functional safety standards like IEC 61508:2010 series and ISO 13849-1:2023.

• Functional Safety
• Cyber Security
• International Standards
• BSI Standards
• Safety Engineering

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1. Functional Safety and Cyber Security International Standards Update A Quick Update

2. Cyclic Communication, CSMA/CD, CSMA/CA, TSN 1:1 Communication relationship between master / controller and slave / device Standard I/O Safety I/O Drive with Safety Laser Scanner 2

3. PROFIsafe Add-on Strategy Safety Standard engineering tool e.g. STEP 7 Standard CPU F-Hardware Engineering tool e.g. S7 Safety Safety I/O Modules Standard Remote I/O PROFINET PROFIsafe 3

4. BSI Standards UK Industrycan work withBSI(and internationally)todevelopstandards. GEL/65/1 (mirrorcommitteeforIECSC65A),i.e.IEC 61508,IEC 61511. MCE/3 (mirrorcommitteeforIEC TC44),i.e.IEC62061. MCE/3 (mirrorcommitteeforISOTC199),i.e.ISO13849. AMT/10/-/2 (mirrorcommitteeforISO TC299),i.e.ISO 10218. GEL/65/0 (mirrorcommitteeforIECTC65),i.e.IEC 62443. BSEN IEC/ BSEN ISO. 5

5. Functional Safety 6

6. International Standards Functional Safety IEC61508:2010series(MT61508,stability date:2023,Ed. 3CDMcomments) Functionalsafetyofelectrical/electronic /programmableelectronic safety-relatedsystems(basicsafetypublication). IEC61511-1:2017(MT 61511,stability date:2026,Ed.3underdiscussion) Functional safety Safety instrumented systems for the process sector Part 1: Framework, definitions, system, hardware and applicationprogrammingrequirements. IEC62061:2021 Safetyof machinery Functionalsafetyofsafety-relatedcontrolsystems. ISO 13849-1:2023 Safetyof machinery Safety-relatedpartsofcontrol systems. ISO 13949-1:2015 Safetyof machinery Safety-relatedpartsofcontrol systems Part1:Generalprinciplesfordesign

7. IEC 62061 (Machinery) Technical changes in this 2ndEdition: structure has been changed and contents have been updated to reflect the design process of the safety function, standard extended to non-electrical technologies (SRECS to SCS), definitions updated to be aligned with IEC 61508-4, functional safety planintroduced and configuration management updated (Clause 4), requirements on parametrization expanded (Clause 6), reference to requirements on security (incl. human error) added (Subclause 6.8), requirements on periodic testingadded (Subclause 6.9), various improvements and clarification on architectures and reliability calculations (Clause 6 and Clause 7), shift from "SILCL" to "maximum SIL" of a subsystem (Clause 7), use cases for software described including requirements (Clause 8), requirements on independence for software verification (Clause 8) and validation activities (Clause 9) added, new informative annex with examples (Annex G), new informative annexes on typical MTTFDvalues, diagnostics and calculation methods for the architectures (Annex C, D and H). We only cover some update topics. Please read the full standard. 8

8. New ISO 13849 (Machinery) Not yetHarmonized (EU) orDesignated(UK). Broughtsome aspectsfrom ISO 13849-2intoISO 13849-1(always required). Betterorder / flow, basically tryingtofixit. Influenced bythe attempttocombineIEC62061/ ISO13849(stilldifferent). SRESW / standard PLCs insafetyfunctions(IEC 61508). Alternativeapproach todeterminePL withdata. EMC / EMI(AnnexL). We only cover some update topics. Please read the full standard. 9

9. Cyber Security 10

10. No Safety without Security? Consideringa standpointofFunctional Safety AND CyberSecurity. CyberSecurityisvery importantforindustrial networks(EU Machinery Regulation)! SomeFS standards mentionsecurityrequirements(e.g. IEC 61511). Separateinternationalstandards (plus plentyofguidance!). For many, thesecurityfocus is theIEC 62443seriesofstandards. SecurityExtensions forPROFINET (whitepaper / securityclass). Possible newharmonized standard forsecurityofmachinery. 11

11. IACS Security Standards IEC62443-2-1:2010(stabilitydate 2023) Industrial communication networks Network and system security Part 2-1: Establishing an industrial automation and control systemsecurityprogram. IEC62443-2-4:2019 Securityfor industrialautomationandcontrolsystems Part2-4:SecurityprogramrequirementsforIACSservice providers. IEC62443-3-2:2020 Securityfor industrialautomationandcontrolsystems Part3-2:Securityriskassessmentfor systemdesign. IEC62443-3-3:2019 Industrialcommunicationnetworks Networkandsystemsecurity Part3-3:Systemsecurityrequirementsandsecuritylevels. IEC62443-4-1:2018 Securityfor industrialautomationandcontrolsystems Part4-1:Secureproductdevelopment lifecycle requirements. IEC62443-4-2:2019 Securityfor industrialautomationandcontrolsystems Part4-2:Technical securityrequirementsforIACS components. 12

12. IACS Security Standards IEC62443-2-1:TFDIS. Security for industrial automation and control systems Part 2-1: Establishing an industrial automation and control system securityprogram. IEC62443-2-2:CDM Securityfor industrialautomationandcontrolsystems Part2-2:IACS SecurityProtection. IECTS 62443-6-1:TDTS SecurityevaluationmethodologyforIEC62443-2-4. IECTS 62443-6-2:CDM SecurityevaluationmethodologyforIEC62443-4-2. Basic SecurityPublication (2021). 13

13. Cyber Security OtherOTguidance! OG-0086Edition2(https://www.hse.gov.uk/foi/internalops/og/og-0086.pdf). OtherOTguidance (e.g. The61508Association, IET Code of Practice). EU Machinery Regulations (2years, malicious 3rdpartyactions) pleaseread it. Useful links . https://www.61508.org/images/downloads/T6A032_Technical_Guide_-_Considerations_for_Cybersecurity_during_the_Safety_Lifecycle_V1_e112020.pdf Codeof Practice:Cyber SecurityandSafety (theiet.org) 14

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15. Offshore Land based facility Power generation OSV and construction vessel Gas carrier Tanker and FSO FPSO and FLNG Offshore wind Fixed unit MODU and MOPU FSRU Pipeline Riser Subsea infrastructure Subsea Field development Lloyd's Register 16

16. Thank you Contact details: Peter Brown Functional Safety & Systems pete.brown@lr.org