Description
Technical Specifications
| Product Model | ICS TRIPLEX T8111C |
| Manufacturer | Honeywell |
| Product Type | Triple Modular Redundant (TMR) Safety Controller |
| Safety Integrity Level | SIL 3 (IEC 61508/61511) |
| Input Voltage | 18-32 VDC |
| Power Consumption | < 25W |
| Processor | Three Independent 800 MHz CPUs |
| Memory | 2 GB RAM + 4 GB Flash |
| Communication Interfaces | Triple Ethernet, Modbus TCP/IP, OPC UA |
| Operating Temperature | -40°C to +70°C |
| MTBF | > 50 years |
| Certifications | ATEX, IECEx, UL, CE |
Key Features and Advantages
Fault-Tolerant Architecture: The T8111C employs Triple Modular Redundant design with three independent processing channels. This architecture ensures continuous operation even with two simultaneous faults, providing unmatched safety availability for critical shutdown systems.
Advanced Diagnostics: Comprehensive real-time diagnostics monitor all subsystems, including power supplies, processors, and communication paths. Predictive failure analysis identifies potential issues before they impact system integrity, reducing unplanned downtime.
Cybersecurity Protection: Built-in security features include secure boot, encrypted communications, and role-based access control compliant with IEC 62443 standards. Regular security patches protect against evolving cyber threats in industrial networks.
Seamless Integration: Native support for major protocols enables straightforward integration with existing DCS and PLC systems. The modular design allows flexible expansion with compatible I/O cards without disrupting operations.

T8111C
Application Fields
The ICS TRIPLEX T8111C is deployed in safety-critical applications where failure is not an option. In oil and gas, it provides emergency shutdown (ESD) protection for offshore platforms and pipeline operations. Chemical plants utilize this controller for burner management systems and high-integrity pressure protection systems (HIPPS).
Power generation facilities depend on the T8111C for turbine overspeed protection and reactor safety systems in nuclear plants. In transportation, it safeguards LNG terminal operations and fuel transfer systems. Mining operations use this controller for critical ventilation shutdown systems. Its robust construction and SIL 3 certification make the T8111C essential for hazardous environments where personnel and asset protection are paramount.
Related Products
T8110B: Previous generation TMR controller with SIL 2 certification
T8151B: Advanced version with enhanced cybersecurity features
AIM01: Analog input module for signal processing
DIM01: Digital input module for contact sensing
FIM01: Fieldbus interface module
PSM01: Redundant power supply module
COM01: Communication gateway module
Installation and Maintenance
Installation Preparation: Before installing the T8111C, verify environmental conditions meet specifications. Maintain minimum 50mm clearance on all sides for proper ventilation. Follow strict ESD protocols during handling, and ensure all cables are properly shielded from electromagnetic interference. Use the approved mounting kit for secure chassis installation.
Maintenance Recommendations: Perform monthly diagnostic reviews using certified software tools. Verify firmware updates every six months and apply security patches promptly. Conduct comprehensive function tests annually following the safety validation procedure. Keep redundant processors synchronized and monitor for any diagnostics reported by the T8151B diagnostic system.
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