Description

The TRICONEX 3664 is a critical Main Processor Module, often referred to as the Triplicated Controller Module (TCM), which serves as the central intelligence for the renowned Tricon TMR (Triple Modular Redundant) safety system. This module is the core computational engine responsible for executing the safety logic that protects personnel, equipment, and the environment in the world’s most hazardous industrial processes. Operating on a fundamental “3-2-0” fault-tolerant architecture, the TRICONEX 3664 incorporates three independent, parallel processing channels that actively synchronize and vote on all inputs, logic solvers, and outputs. This design ensures that no single point of failure can cause a spurious shutdown or prevent a necessary safety action, providing unparalleled system availability and integrity.

As a key component of the Tricon V9 and V10 system platforms, the TRICONEX 3664 module defines the system’s performance and capacity. It manages the communication between all I/O modules, the communication modules for network connectivity, and the programming terminal. Its primary value lies in its certification for the highest Safety Integrity Level, SIL 3, under international standards like IEC 61508 and IEC 61511. By integrating the TRICONEX 3664 into a safety instrumented system (SIS), engineers deploy a proven and robust solution for emergency shutdown (ESD), fire and gas (F&G) monitoring, and critical process control. The reliability and fault-tolerant nature of the TRICONEX 3664 make it the cornerstone of safety systems in industries where failure is not an option.

TRICONEX 3664

Technical Specifications

Main Features and Advantages

The defining feature of the TRICONEX 3664 is its robust Triple Modular Redundant (TMR) architecture. This design employs three parallel, isolated control channels that operate in perfect synchrony. A two-out-of-three (2oo3) voting mechanism is applied at every stage—from input processing through logic solving to final output. This ensures that the system can tolerate a fault in any single channel without any loss of functionality or a spurious trip, guaranteeing maximum process availability while maintaining the highest safety integrity.

Unmatched fault tolerance and diagnostics: The TRICONEX 3664 is engineered not just to be redundant, but to be intelligently fault-tolerant. It performs continuous, comprehensive self-diagnostics on all hardware and software components. Any detected fault is immediately reported and isolated, allowing for online repair and module replacement (hot-swapping), which dramatically reduces maintenance downtime. This proactive approach to system health ensures that the safety system is always in a high state of readiness.

Proven SIL 3 certification and global acceptance: The TRICONEX 3664 is not merely designed to be safe; it is independently certified to meet the rigorous requirements for SIL 3. This global certification provides documented proof that the module is suitable for protecting functions where the risk is highest. Its long-standing reputation and widespread use in critical infrastructure across the globe make the TRICONEX 3664 a low-risk, trusted choice for safety system engineers, simplifying the validation process and ensuring regulatory compliance.

Application Field

The TRICONEX 3664 is deployed in industries where the consequences of a safety system failure could be catastrophic. In the oil and gas sector, it is the backbone of Emergency Shutdown (ESD) systems on offshore platforms, floating production vessels, and onshore refineries. It also forms the core of Fire and Gas (F&G) detection and mitigation systems, taking critical action upon detecting hydrocarbons or flames. The reliability of the TRICONEX 3664 is paramount in these unforgiving environments.

In the chemical and petrochemical industry, this processor module manages safety interlocks and shutdown systems for high-integrity pressure protection systems (HIPPS) and reactor controls, preventing runaway reactions and toxic releases. Across the power generation landscape, from conventional gas turbine plants to nuclear facilities, the TRICONEX 3664 provides critical turbine protection and reactor safety functions. Furthermore, it is found in other high-hazard applications such as pharmaceutical batch processes, pipeline compressor stations, and offshore loading terminals, solidifying its role as the universal safeguard for the world’s most critical industrial assets.

TRICONEX 3664

Related Products

TRICONEX 4351B: A popular analog input module that provides field sensor data to the TRICONEX 3664 main processor.

TRICONEX 3625T: A 32-channel digital input module used for reading contact statuses (e.g., from emergency stop buttons) into the Tricon system.

TRICONEX 3511: A digital output module used by the TRICONEX 3664 to execute safety actions, such as closing shutdown valves.

TRICONEX 3805E: A communication module (NCM) that provides network connectivity for the main chassis.

TRICONEX 3663: A previous-generation main processor module, often upgraded to the TRICONEX 3664.

TRICONEX 3008: The main system chassis or rack that houses the TRICONEX 3664 and other I/O modules.

TRICONEX 9761-210: A redundant power supply module that provides clean, reliable power to the entire system, including the critical TRICONEX 3664 processor.