Description
The TRICONEX 4119A is a Triple Modular Redundant (TMR) main processor module for Triconex Tricon v11 safety instrumented systems. This critical component serves as the central brain of the safety system, executing safety logic with the highest level of reliability and fault tolerance. Designed for SIL 3 applications, it processes input data, executes control programs, and drives output actions while maintaining continuous operation even in the event of hardware failures.
Application Scenarios
In a offshore oil platform’s emergency shutdown system, the TRICONEX 4119A main processor continuously monitors thousands of safety-critical parameters from sensors across the platform. The module executes complex safety logic programs at high speed, using its TMR architecture to compare results from three independent processing channels. When a hazardous condition is detected—such as high pressure or gas leakage—the 4119A initiates appropriate safety actions within milliseconds, ensuring platform safety while maintaining 2-out-of-3 voting integrity even if one channel fails.

TRICONEX 4119A
Core Parameters
| Main Parameter | Value/Description |
| Product Model | 4119A |
| Manufacturer | TRICONEX (Schneider Electric) |
| Product Category | TMR Main Processor Module |
| System Compatibility | Tricon v11 Safety System |
| Safety Certification | SIL 3 (IEC 61508/61511) |
| Architecture | Triple Modular Redundant (TMR) |
| Processor Type | Triple 32-bit processors |
| Memory Capacity | Extensive memory for program storage |
| Communication Ports | Multiple communication interfaces |
| Diagnostic Coverage | Comprehensive self-diagnostics |
| Power Requirements | System backplane powered |
| Operating Temperature | Industrial range: 0°C to 60°C |
Technical Principles and Innovative Value
Innovation Point 1: Triple Modular Redundant Architecture – The TRICONEX 4119A employs three independent parallel control systems that operate simultaneously. Each channel independently executes the control program, with hardware voting mechanisms comparing results to ensure correct operation. This architecture provides fault tolerance and continues safe operation even with a single channel failure.Innovation Point 2: Advanced Fault Detection and Diagnostics – The module incorporates comprehensive continuous self-diagnostics that monitor processor health, memory integrity, and communication status. Sophisticated fault detection algorithms identify failures and ensure the system maintains safety integrity while providing detailed diagnostic information for maintenance.Innovation Point 3: High-Performance Safety Processing – Utilizing triple 32-bit processors, the 4119A delivers high-speed execution of complex safety logic while maintaining the deterministic response times required for critical safety applications. The optimized architecture ensures reliable performance even under heavy computational loads.
Application Cases and Industry Value
Case: Refinery Fire and Gas Protection SystemA major petroleum refinery implemented a comprehensive fire and gas detection system using a Tricon v11 system with TRICONEX 4119A main processors.
- Application Process: The 4119A modules were configured to process signals from hundreds of gas detectors, flame detectors, and temperature sensors throughout the facility. The TMR architecture ensured continuous protection even during maintenance or component failures.
- Improvements: The system achieved 99.99% availability with response times under 100ms. The fault-tolerant design eliminated single points of failure, while comprehensive diagnostics reduced mean time to repair by 70%.
- User Feedback: The safety systems manager reported, “The 4119A main processors have provided unparalleled reliability for our SIL 3 safety system. Their TMR architecture and diagnostic capabilities give us complete confidence in our refinery’s protection systems.”

TRICONEX 4119A
Related Product Combination Solutions
A complete Tricon v11 safety system solution includes these complementary products:
- TRICONEX 4409 – Communication module for system integration
- TRICONEX 3664 – Analog input module for sensor interface
- TRICONEX 3503E – Digital input module for discrete signals
- TRICONEX 3805E – Digital output module for final control elements
- TriStation 1131 – Engineering software for configuration and programming
Installation, Maintenance, and Full-Cycle Support
Installation and Commissioning: The TRICONEX 4119A requires installation by certified Triconex system engineers. Installation includes proper module insertion in the chassis, configuration using TriStation software, and comprehensive functional testing. Commissioning involves logic verification, communication testing, and failover testing to ensure proper TMR operation.Maintenance and Support: Regular maintenance includes diagnostic review, firmware updates, and periodic functional testing. Triconex provides comprehensive technical documentation, training programs, and global support services to ensure system reliability throughout its lifecycle.
