IEC 61508 Consulting, Engineering & Certification Support for Safety-Critical Systems
VerveTronics has developed IEC 61508 compliant safety certified Fail Operational systems up to SIL3/SIL4, which are in production and field use for Major Global OEMs, Tier-1s across US, EU, India, Japan and Australia. Our motto of “Attention to details and focus on precision” has been a key driver to achieve product quality.
Our IEC 61508 expertise spans Industrial automation, Safety PLCs and controllers, Process control systems, Industrial drives, Machinery and control systems, Robotics, Energy storage systems, Battery Management Systems, Power electronics, Sensors and instrumentation, Safety-related embedded systems, Industrial communication systems, Hydrogen and energy systems, Electrification systems, Critical monitoring and protection systems.
Our engineering-led approach combines Functional Safety consulting, system engineering, hardware safety, software safety, safety analysis and verification to help customers develop safety-critical products and prepare for independent Functional Safety assessment.
Need support with an IEC 61508 project? Contact our Functional Safety experts
IEC 61508 Functional Safety Consulting and Certification Challenges
IEC 61508 Safety Consulting & Certification Challenges
- “We need to achieve SIL2, SIL 3 or SIL 4.”: We help translate the safety target into architecture, requirements, safety mechanisms, safety analysis and verification activities.
- “We need to perform HARA or Safety analysis from safety experts.”: We can review the item definition, operating scenarios, hazardous events, severity, exposure, controllability and resulting safety goals.
- “Our hardware does not meet the required safety metrics.”: We analyze FMEDA, diagnostic coverage, safety mechanisms, PFHd, MTTFd, DC and CCF and identify potential engineering improvements.
- “Our software architecture, design and process are not IEC 61508 compliant.”: We assess the software safety lifecycle, architecture, requirements, verification, traceability and relevant development practices.
- “We have an assessment coming up.”: We can perform a gap assessment, review evidence, establish traceability and help prepare the safety case and assessment package.
- “We don’t have enough Functional Safety engineers.”: We can provide a dedicated engineering team or targeted work packages covering specific safety activities.
IEC 61508 provides a framework for managing safety throughout the lifecycle of automotive systems. Achieving Safety in Automotive industry for multi-disciplinary functions involves expertise in standards and regulations like IEC 61508, ISO 21448 , IEC 62443, UN ECE regulations.
Navigating the complexities of Functional Safety standards can be daunting, especially when it comes to performing accurate risk reduction, designing safety systems that meet the SIL levels, validating those systems to ensure they function correctly and implementing processes with stringent safety requirements.
OEMs/Suppliers often face challenges in acquiring or scaling the technical expertise, enhancing and implementing processes with right industry standard tools considering time to market and quality constraints. Failure to meet these safety standards can result in increased risks, operational failures, and safety incidents.
Why VerveTronics ?
- Deep Expertise in IEC 61508 and ISO 21434: Deep IEC 61508 Technical Expertise Our consultants hold Functional Safety Experts (FSE) and Functional Safety Manager (FSM) certifications. We have hands-on experience across all IEC 61508 work products — from Item Definition , HARA through to Functional Safety Assessment (FSA) and functional safety case compilation. With Full-Spectrum Domain Coverage, we bring specialist knowledge across the highest-complexity safety applications:
- Industrial automation, Safety PLCs and controllers, Process control systems, Industrial drives
- Machinery and control systems, Industrial communication systems
- Robotics
- Energy storage systems, Battery Management Systems, Hydrogen and energy systems, Electrification systems
- Sensors and instrumentation
- Power electronics, Inverters, DC-DC Converters, Safety-related embedded systems
- Critical monitoring and protection systems
- Holistic Approach to Safety and Security: We provide comprehensive functional safety services, from early-stage risk assessments to full-scale system validation, covering both hardware and software safety aspects.
- Innovative Solutions for Emerging Technologies: VerveTronics has a proven track record in addressing the unique safety challenges posed by autonomous driving and electric vehicle systems, ensuring compliance while enabling technological innovation.
- Safety Analysis and Risk Mitigation: We deliver all IEC 61508-mandated and recommended indepth safety analyses with full traceability:
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- HARA (Hazard Analysis , Risk Assessment and Risk Reduction) — IEC 61508
- Safety Function derivation and SIL allocation
- System Safety Concept, Architecture and Requirements.
- FMEA at system, hardware, and software levels
- FMEDA with SPFM / LFM / PMHF calculation — IEC 61508 Part 5
- FTA (Fault Tree Analysis) — qualitative and quantitative
- CCF (Common cause Failure Analysis) — identifying common cause and cascading failures
- Scalable Engagement Models Whether you need a complete outsourced IEC 61508 consulting team, embedded safety engineers within your organization, or targeted expert support for a specific work product (e.g. FMEDA, FSC, or safety assessment), we structure our engagement to match your program needs.
Our IEC 61508 Functional Safety Consulting Services
Our IEC 61508 Functional Safety Consulting, Engineering and Certification support Services
Hazard Analysis and Risk Assessment (HARA) — IEC 61508 Part 5
Our IEC 61508 consultants conduct structured HARA workshops with cross-functional teams to identify hazardous events, assess Severity (S0–S3), Exposure (E0–E4), and Controllability (C0–C3), and derive Safety Goals with the correct ASIL rating. We produce fully traceable HARA documentation including operational situations, hazardous event catalogues, and safety goal refinement rationale.
Functional & Technical Safety Concept (IEC 61508 Part 2)
We develop the Functional Safety Concept (FSC) and Technical Safety Concept (TSC) — translating Safety Goals into system-level safety requirements with ASIL allocations, defining safety mechanisms, diagnostic coverage strategies, and ASIL decomposition across hardware and software elements. We validate the safety architecture against IEC 61508 Part 4 requirements with full DFA at the concept level.
Hardware Safety Engineering (IEC 61508 Part 2)
Our hardware safety engineers deliver IEC 61508 Part 5 compliant hardware safety work products:
- Safety-oriented hardware architecture with defined safety mechanisms
- FMEDA with calculation of SPFM, LFM, and PMHF against ASIL targets
- Hardware safety requirements and safety-oriented hardware design
- Hardware integration and verification test specifications
- Dependent Failure Analysis (DFA) at hardware level
- Random hardware failure target compliance (PMHF < 10 FIT for ASIL D)
Software Safety Engineering (IEC 61508 Part 3)
Our functional safety software engineers deliver compliant software work products for ASIL A through ASIL D:
- Software safety requirements decomposition and allocation
- Software architectural design with freedom from interference (FFI) analysis
- Unit design and implementation per IEC 61508 Part 6 Table 1–12 method recommendations
- MISRA C / MISRA C++ compliance integration
- Software unit verification including structural coverage (Statement, Branch, MC/DC for ASIL C/D)
- Software integration testing and back-to-back testing for model-based development
- Software FMEA and DFA
Safety Analysis Services — HARA, FMEA, FMEDA, FTA, DFA
Standalone or integrated safety analysis services for all phases of the safety lifecycle, delivered by certified functional safety engineers with automotive domain experience up to ASIL D.
Functional Safety Audits & Assessments
We provide independent Functional Safety Assessments (FSA) per IEC 61508 Part 2 Clause 13, including confirmation measures (reviews, audits, assessments) at each phase of the safety lifecycle. We also conduct gap assessments against IEC 61508 for organisations beginning their compliance journey.
Verification, Validation & Testing (IEC 61508 Part 2/3/46)
We deliver IEC 61508-aligned V&V services including:
- ECU-level hardware and software integration testing
- System-level functional safety validation
- Fault injection testing (hardware and software)
- Hardware-in-the-Loop (HiL) testing for safety validation
- Regression testing and ASIL-compliant test documentation
Functional Safety Management & Safety Planning (IEC 61508 Part 1)
We establish the Functional Safety Management (FSM) framework for your project — defining roles and responsibilities, safety culture requirements, competence management, and the Safety Plan aligned to IEC 61508 Part 2. We manage safety activities throughout the lifecycle, including configuration management, change management, and supplier interface agreements.
IEC 61508 Training
Customized training programmes for engineering and management teams covering the full IEC 61508 standard, HARA methodology, FMEDA, software safety, and safety culture — delivered by practicing functional safety engineers.
Our IEC 61508 Functional Safety Consulting Expertise Across domains
IEC 61508 Functional Safety Consulting, Engineering and Certification Expertise Accross Domains
IEC 61508 Consulting for Industrial Automation
Industrial automation systems often combine controllers, sensors, actuators, communication networks and safety functions.
Our expertise can support: PLC systems, Safety PLCs, Industrial controllers, Safety I/O, Machine control, Process control, Industrial networks, Sensors, Actuators, Drives, Motion control
Safety engineering can cover the complete lifecycle from hazard analysis through architecture, implementation, verification and assessment.
IEC 61508 Consulting for Energy Storage & BESS
Battery Energy Storage Systems introduce significant safety challenges involving electrical energy, thermal behavior, battery management and power conversion.
VerveTronics supports Functional Safety engineering for: Battery Management Systems ,Battery monitoring, Cell monitoring, Thermal monitoring, Contactor control, High-voltage protection, Power conversion ,Energy management, Fault detection, Emergency shutdown, Safety monitoring
Our existing experience includes IEC 61508 / ISO 13849 safety engineering for BESS and battery-related electronics.
IEC 61508 Consulting for Robotics
Industrial and mobile robots combine mechanical motion, electronics, software, sensors and human interaction.
VerveTronics supports Functional Safety engineering for: Industrial robots, AMRs, AGVs, Collaborative robots, Robot cells, Wireless robot controls, Autonomous systems, Safety-rated controllers, Safety functions, Protective stops, Emergency stops, Speed monitoring, Separation monitoring
Where appropriate, IEC 61508 can be considered alongside machinery and robotics standards such as ISO 13849 and ISO 10218, depending on the product and application.
IEC 61508 for Industrial Drives & Power Electronics
Power electronics and drives can contain safety-critical functions related to: Torque, Speed, Motion, Energy, Shutdown, Overcurrent, Overvoltage, Thermal protection
VerveTronics can support safety engineering for: Motor drives, Inverters, Power converters, DC-DC converters, Industrial power supplies, Motor controllers, High-power electronics
Services can include safety requirements, architecture, safety mechanisms, FMEA, FMEDA, FTA, quantitative analysis and verification.
IEC 61508 for Safety PLCs & Controllers
Safety PLCs and programmable safety controllers require rigorous consideration of:Processor architecture, Memory, Diagnostics, I/O, Communication, Watchdogs, Redundancy, Fault detection, Fault reaction, Software safety, Hardware safety metrics
VerveTronics can support development and assessment activities for safety-related controller platforms and their associated hardware and software.
IEC 61508 and Related Functional Safety Standards
IEC 61508 is often used as a foundational Functional Safety standard, while sector-specific standards may apply depending on the product and industry. Examples include:
- Industrial Functional Safety :IEC 61508
- Process Safety: IEC 61511
- Machinery:ISO 13849
- Machinery Safety :IEC 62061
- Automotive :ISO 26262
- Agricultural Machinery: ISO 25119
- Robotics : ISO 10218
- Railway EN 50126 / EN 50128 / EN 50129
- Medical IEC 62304 / IEC 60601
- Aerospace: DO-178C / DO-254
VerveTronics can help organizations determine how IEC 61508 relates to the standards applicable to their particular product and market.
Our Approach
Approach for IEC 61508 Consulting, Engineering and Certification
- People Knowledge & Competencies: A culture focused with building deep knowledge and competencies across domains and standards.
- Tools & Process Automation: Emphasis on tools to automate process and thus achieve best in class quality through
- Requirements Management
- Dev Ops for CI/CD Continuous integration and Continuous Delivery.
- Traceability
- Hardware in Loop & Fault Insertion Testing
- Culture of precision, attention to details and excellence through continuous improvement.
- Requirements Engineering: Core competency of Requirement engineering and decomposition considering multifaceted systems engineering approach for architectural components.
- Safety/Security Analysis and Risk Reductions: Carry out thorough failure and threat analysis at various phases with optimum risk reduction techniques.
- Re-usable & Proven in use accelerators: Development and Usage of ready to use, time tested, proven in use accelerators that faced rigorous levels of compliance and testing.
VerveTronics Case Studies/Solutions:
VerveTronics Role:
- Support for end to end IEC 61508 SIL3 | ISO 13849 Ple compliance and certification
- Safety/Technical Concept and specifications ,
- Safety Analysis for System (HARA), Hardware(FMEDA), Software(FMEA) and Mechanical (FMEA)
- Safety Compliant Hardware Specifications and Assessment
- Hardware Design and development
- Safety Compliant Software Specifications, Validation and Assessment
- SIL3 Process Development and Improvements
- Safety Assessment and Certifications
VerveTronics Role:
- Support for end to end EC 61508/ ISO 13849 SIL3 compliance
- Safety/Technical Concept and specifications ,
- Safety Analysis for Hardware(FMEDA), Software (FMEA) and Mechanical (FMEA)
- Safety Compliant Hardware Specifications and Assessment
- Safety Compliant Software Specifications and Assessment
- SIL-3 Process Development and Improvements
- Safety Assessment
VerveTronics Role:
- Safety/Technical Concept and specifications ,
- Safety Analysis for Hardware(FMEDA), Software (FMEA) and Mechanical (FMEA)
- Safety Compliant Hardware Specifications, Development and Assessment
- Safety Compliant Software Specifications, Development and Assessment
- Safety Assessment.
IEC 61508 Functional Safety FAQs
IEC 61508 Funcitonal Safety Consulting, Engineering and Certification FAQs
- What is IEC 61508? IEC 61508 is an international Functional Safety standard for electrical and electronic systems. It provides a framework for managing risks associated with malfunctioning behavior of safety-related E/E systems throughout their lifecycle.
- What is IEC 61508 consulting and engineering? IEC 61508 consulting and engineering helps organizations plan, implement, review and improve Functional Safety processes and engineering activities required for safety-critical automotive products to achieve compliance
- What does an IEC 61508 consultant do? An IEC 61508 consultant may support activities including HARA, safety goals, Safety Concept, Safety Architecture, Safety requirements, Safety Analysis , FMEA, FTA, FMEDA, DFA, hardware/software safety engineering, verification, safety case development and assessment preparation.
- Can VerveTronics support SIL3/ SIL3 Fail Operational? Yes. VerveTronics provides Functional Safety engineering and consulting support for automotive programs targeting SIL2 ,SIL3,SIL4 fail safe or fail operational systems subject to the scope and requirements of the individual project.
- Does IEC 61508 apply only to software? No. IEC 61508 addresses Functional Safety across the E/E product lifecycle, including management, concept, system, hardware, software, production and post-development activities.
- What is the difference between HARA and Safety analysis for e.g FMEDA? HARA is primarily a concept-phase analysis used to identify hazards and determine safety goals and ASIL classification. FMEDA is a hardware safety analysis used to evaluate hardware failure modes, safety mechanisms and diagnostic coverage and to support hardware safety metrics.
- What is the difference between IEC 61508 and ISO/SAE 21434/ IEC 62443? IEC 61508 addresses Functional Safety, while ISO/SAE 21434, IEC 62443 addresses cybersecurity engineering. A modern EE/PE program may need to address both disciplines.
- What is the difference between SIL and PL? SIL is associated with Functional Safety integrity levels used in standards such as IEC 61508, while Performance Level (PL) is used primarily within machinery safety frameworks such as ISO 13849. The appropriate framework depends on the product and application.
- What is PFDavg? PFDavg represents the average probability of failure on demand for a safety function and is particularly relevant to low-demand operating modes.
- What is PFH? PFH represents the probability of dangerous failure per hour and is relevant to high-demand or continuous-operation safety functions.
- Can VerveTronics provide IEC 61508 certification? VerveTronics provides IEC 61508 consulting, engineering, compliance and certification/assessment preparation support. Where independent formal certification is required, certification is performed by the applicable independent certification or assessment organization.
- Can VerveTronics perform an IEC 61508 safety assessment? VerveTronics can provide consulting, engineering, IEC 61508 gap assessment and safety engineering and compliance. Formal independent certification should be performed by the applicable independent certification organization.
- When should an organization engage an IEC 61508 consultant for engineering?
Ideally, Functional Safety should be considered at the beginning of the product lifecycle. However, consulting can also be valuable when reviewing an existing program, addressing safety gaps, improving architecture, preparing for assessment or recovering a delayed safety program.
Knowledge Center
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As robots increasingly operate alongside humans, ensuring their safety, reliability, and interoperability becomes critical. Robotics standards offer a structured approach to achieve these objectives. This blog will explore robotics standards through the lens of why they matter, what they cover, and how they are implemented.




