Triconex 3101
Triconex 3101 - Image 2

Triconex 3101

Product Introduction: The Triconex 3101 is a main processor module for the Tricon safety instrumented system (SIS), executing critical safety logic, diagnostics, and system communication. It is part of the Tricon TMR architecture where three independent processor channels run in parallel and use 2-out-of-3 voting to provide high safety and availability for emergency shutdown (ESD), fire and gas (F&G), burner management (BMS), turbomachinery control, and high-integrity pressure protection (HIPPS).

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Category: SKU: Triconex 3101

Description

Triconex 3101

Technical Specifications:

  • Architecture: Triple Modular Redundant (TMR); three independent processor channels with 2-out-of-3 hardware voting
  • Processor: 32-bit RISC/PowerPC (generation-dependent)
  • Memory: 2 MB RAM, 2 MB ROM (per channel; generations vary)
  • Communication Ports: Ethernet (10BaseT RJ-45), RS-232, RS-485/Modbus, optional USB and CANopen
  • Tribus: 25 Mbps high-speed proprietary backplane bus with CRC-protected data and parity
  • Diagnostics: Comprehensive self-test, fault detection and isolation, online diagnostics at module and system level
  • Safety Certifications: IEC 61508 SIL3; TÜV AK6 for Tricon TMR systems
  • Environment: Operating temperature -40 °C to +70 °C; humidity 5% to 95% (non-condensing)
  • Dimensions: Approximately 22 cm × 16.9 cm × 4.4 cm
  • Weight: Approximately 1 kg
  • Power: Powered from Tricon chassis backplane; 24 VDC system supply

Functional Features:

  • Parallel execution of safety control applications on three independent processors
  • 2-out-of-3 voting on all critical signals and outputs
  • Extensive online diagnostics and fault reporting to TriStation 1131
  • Peer-to-peer and system communications via Ethernet and serial ports
  • Redundant communication options for integration with DCS, SCADA, HMI
  • Support for IEC 61131-3 programming languages (LD, FBD, ST, SFC) via TriStation 1131

Application Scenarios:

  • Emergency shutdown (ESD) systems in upstream/downstream oil and gas
  • Fire and gas (F&G) detection and mitigation
  • High-integrity pressure protection systems (HIPPS)
  • Turbomachinery control and protection (compressors, turbines)
  • Burner management systems (BMS) and boiler protection
  • Critical process control loops requiring SIL3 compliance

Performance Parameters:

  • Deterministic execution with fast scan times suitable for safety critical trips
  • High availability with fault-tolerant TMR architecture
  • Low-latency I/O updates and Tribus communication
  • Supports large application programs within available memory

Material and Structural Characteristics:

  • Rigid FR-4 PCB with industrial-grade components and conformal coating (harsh-environment options)
  • Metal front panel with status LEDs and connector port
  • Designed for Tricon chassis backplane integration with keyed connectors

Working Principle: Each of the three processor channels independently reads inputs, executes application logic, and computes outputs. Data is exchanged via the Tribus and compared by 2-out-of-3 voting to ensure correct, safe operation even if one channel fails. Diagnostics run continuously to detect and report faults, allowing online repair without process shutdown. Installation Requirements:

  • Mount into designated processor slots in Tricon chassis (8-slot or 15-slot main/expansion chassis)
  • Secure with module latches; verify keying for correct orientation
  • Connect to chassis backplane, power, and communication ports per system wiring diagrams
  • Configure application logic and communication using TriStation 1131 engineering workstation

Usage Notes:

  • Strictly follow TMR system configuration guidelines; maintain matching firmware revisions across all three main processors
  • Perform online module replacement only in systems with redundancy and proper hot-swap procedures
  • Ground the chassis and avoid static discharge when handling modules
  • Periodically back up application programs and review diagnostic logs

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