Product Overview
The GE IS215UCVFH2BB is an advanced Triple Modular Redundant(TMR)safety controller module within the GE Mark VIeS safety system—a purpose-built platform for SIL 3 applications in high-hazard industries.As a direct evolution of the IS215UCVEH2AF,the IS215UCVFH2BB features enhanced processing power,increased memory capacity,and improved thermal performance,enabling it to support larger,more complex safety applications such as integrated compressor station shutdown logic,combined-cycle boiler protection,or offshore platform-wide ESD systems.
Like all Mark VIeS safety controllers,the IS215UCVFH2BB implements true hardware-level redundancy:three independent processing lanes execute identical safety logic in parallel and continuously vote on outputs using a 2-out-of-3(2oo3)architecture.This ensures that even in the event of a single(or sometimes dual)hardware fault,the system remains fail-safe—preventing dangerous failures while minimizing spurious trips.The module communicates over dual redundant SafetyNET networks(deterministic Ethernet)to TMR I/O modules and integrates securely with the broader plant control ecosystem via ToolboxST™,all while maintaining strict functional safety separation per IEC 61508 and IEC 61511.
Technical Specifications
Parameter Value
Model IS215UCVFH2BB
Manufacturer GE Vernova(formerly GE Power/GE Digital Energy)
System Platform Mark VIeS(Safety variant of Mark VIe)
Safety Integrity Level SIL 3 per IEC 61508
Architecture Triple Modular Redundant(TMR)with 2oo3 voting
Processor Three synchronized 32-bit RISC CPUs with enhanced clock speed vs.UCVE
Memory Increased Flash and SRAM with ECC(Error-Correcting Code)
Communication Dual redundant 100 Mbps SafetyNET(Ethernet-based,time-synchronized)
Power Input Dual isolated 24 VDC(±10%),reverse-polarity protected
Operating Temperature 0°C to+60°C(industrial grade)
Diagnostics Continuous online self-test(>99%diagnostic coverage)
Configuration Tools ToolboxST™+Safety Application Builder(SAB)
Certifications IEC 61508 SIL 3,API 670(5th Ed.),NFPA 85,IEC 61511,ATEX(with enclosure)
Note:The“F”in UCVF typically denotes a newer hardware revision with improved firmware support and memory footprint compared to“E”series(e.g.,UCVE).
Key Features&Advantages
✅Higher Performance for Complex Safety Logic
The IS215UCVFH2BB supports larger safety programs with faster scan times—ideal for applications requiring hundreds of I/O points,interlocks,and sequential shutdown sequences(e.g.,LNG train ESD).
✅Backward Compatibility with Mark VIeS Ecosystem
Fully interoperable with existing IS215-series I/O modules(e.g.,PDIOH1A,AIINH1A)and engineering tools.Existing safety applications can often be migrated with minimal reconfiguration.
✅Enhanced Cybersecurity&Secure Lifecycle Management
Features secure boot,signed firmware validation,role-based access control,and audit logging—aligning with IEC 62443-3-3 and NERC CIP for critical infrastructure.
✅Deterministic,Sub-10ms Trip Response
Guaranteed response from sensor input to final element actuation meets stringent requirements for turbine overspeed(e.g.,110%trip within milliseconds).
✅Global Regulatory Acceptance
Pre-certified documentation packages simplify compliance with OSHA PSM,EU ATEX,Canadian CRN,and other regional safety mandates.
Typical Applications
Gas Turbine&Steam Turbine Overspeed Protection(API 670 compliant)
Boiler&Furnace Safety Systems in power plants(NFPA 85 burner management)
Offshore Platform Integrated ESD triggered by fire,gas,or process deviation
LNG Liquefaction Trains–Cryogenic pump trips,tank overfill,vapor detection
Refinery Hydrocracker&Reactor Protection–Temperature/pressure runaway shutdown
Pipeline Compressor Stations–Surge control,lube oil failure,vibration trips
In each case,the IS215UCVFH2BB acts as the trusted”last line of defense”—ensuring that when primary controls fail,safety actions are executed reliably and predictably.
Related Products
IS215UCVEH2AF:Previous-generation TMR controller(lower memory/performance)
IS215VPROH1A:TMR Voting&Power Supply Backplane Module
IS215PDIOH1A:TMR Discrete I/O Module(for switches,solenoids,breaker status)
IS215AIINH1A:TMR Analog Input Module(for pressure,temp,speed sensors)
IS215RAIOH1A:TMR Remote I/O Adapter for distributed safety I/O
Safety Application Builder(SAB):Certified FBD/LD programming environment
ToolboxST™:Unified configuration,trending,and diagnostics software
Mark VIeS Safety System Documentation Suite:Includes FMEDA,SRS templates,validation protocols
Installation&Maintenance Guidelines
🔧Installation Best Practices
Mount only in certified Mark VIeS chassis with proper airflow and grounding.
Use dual,independent 24 VDC power sources from UL-listed supplies.
Segregate SafetyNET cabling from non-safety networks;use industrial-grade CAT5e/6.
Perform full loop-checks and logic simulation in SAB before commissioning.
🛠️Maintenance Recommendations
Schedule quarterly review of diagnostic logs for early fault indicators.
Conduct full proof tests per your Safety Instrumented Function(SIF)requirements.
Never hot-swap modules—power down the I/O core before replacement.
Maintain firmware consistency across all three TMR lanes during updates.
Replace unit if any lane fails built-in power-on self-test(POST)or shows persistent sync errors.
Product Guarantee
Each IS215UCVFH2BB is manufactured under GE’s ISO 9001 and functional safety(IEC 61508)quality management systems.It undergoes rigorous environmental,electrical,and fault-insertion testing to validate SIL 3 claims.GE provides a 24-month warranty against defects in materials and workmanship and guarantees compatibility with the Mark VIeS architecture when installed per official guidelines.
Because in high-consequence environments,safety isn’t just a feature—it’s the foundation.The IS215UCVFH2BB delivers that foundation with uncompromising integrity,performance,and global compliance.
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