TRICONEX 3623T Triple Modular Redundant Central Processing Unit Module

Description

• Communication Interfaces:
  • TriBus (high-speed inter-module communication)
  • Ethernet (10/100Base-TX, for OPC/monitoring)
  • RS-232 (for programming and diagnostics)
  • Dedicated I/O bus
• Diagnostic Functions: CPU self-check, memory verification, power monitoring, temperature alarm, communication status
• Safety Integrity Level: SIL3 (per IEC 61508)
• Certification Standards: TÜV, IEC 61508, ISA 84.01
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Power Supply: Provided by rack power modules (e.g., 8006B)
• Installation Method: Rack-mounted (standard Tricon rack)
• Status Indicators: RUN, ACTIVE, MAINT, DIAG, PWR (multi-color LEDs)

Functional Features

• Triple Modular Redundancy (TMR) Architecture: Three identical CPU modules operate in parallel, executing the same control program. Results are compared via TriBus after each scan cycle. If one module fails, the system continues operating with the remaining two (2oo3 voting), ensuring zero downtime.
• High Reliability and Safety: Utilizes a dedicated 32-bit RISC processor and optimized Tricon operating system for deterministic logic scanning. All critical components (CPU, memory, bus interfaces) are redundantly designed within the module, complemented by system-level TMR redundancy for comprehensive protection.
• Advanced Diagnostics and Maintenance: Each module features built-in self-diagnostics to monitor CPU status, memory integrity, power supply voltage, and temperature. Faults trigger immediate alerts via front-panel LEDs and system communication, enabling proactive maintenance. Supports hot-swapping, allowing faulty CPUs to be replaced without system shutdown. New modules automatically synchronize programs and data from healthy modules upon power-up.
• Openness and Programmability: Programmable using TriStation 1131 software (compliant with IEC 61131-3 standard), supporting multiple languages such as Ladder Diagram (LD), Function Block Diagram (FBD), and Structured Text (ST). Engineers can perform online modifications, downloads, and debugging during system operation, enhancing engineering efficiency.

Application Scenarios

• Oil and Gas Industry: Emergency shutdown systems (ESD), fire and gas detection (F&G), and wellhead pressure monitoring.
• Petrochemical Plants: Safety instrumented systems (SIS) for monitoring reactors, distillation columns, and storage tanks.
• Power Generation: Turbine control, generator monitoring, and auxiliary system protection in thermal and nuclear power plants.
• Metallurgical Industry: Precision control of smelting furnaces, rolling mills, and other equipment to enhance production efficiency and product quality.
• Water Treatment: Pump and valve control in municipal and industrial water treatment facilities.
• Transportation: Vehicle control systems for rail and marine applications requiring maximum availability and reliability.