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2481

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2481
May 18, 2026

2481

The TRICONEX 2481 is a high‑performance TMR communication gateway module for the Triconex Trident Safety Instrumented System (SIS) (Tricon v10/v11). It provides secure, deterministic, redundant Ethernet communication between the Tricon controller and engineering workstations, HMIs, historians, and DCS systems, while maintaining SIL 3 safety integrity and cyber security compliance. The 2481 is zero‑trust cyber‑resilient: no general‑purpose OS, signed immutable firmware, and only pre‑authorized traffic allowed.

Description

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TRICONEX 2481

Communication Gateway Module (TMR, Dual Gigabit Ethernet, SIL 3)

Official Specification & User Manual (English)

1. General Description

The TRICONEX 2481 is a high‑performance TMR communication gateway module for the Triconex Trident Safety Instrumented System (SIS) (Tricon v10/v11). It provides secure, deterministic, redundant Ethernet communication between the Tricon controller and engineering workstations, HMIs, historians, and DCS systems, while maintaining SIL 3 safety integrity and cyber security compliance.
The 2481 is zero‑trust cyber‑resilient: no general‑purpose OS, signed immutable firmware, and only pre‑authorized traffic allowed.

2. Part Number & Type

  • Model: 2481

  • Type: Communication Gateway Module (COM), TMR

  • Series: Trident / Tricon (Schneider Electric)

  • Safety Level: SIL 3 (IEC 61508)

  • Cyber Security: IEC 62443‑3‑3, NERC CIP, CFATS

  • Approvals: TÜV Rheinland, FM, CSA

3. Key Features

  • Dual Gigabit Ethernet Ports (10/100/1000 Mbps)

    Hardware‑redundant, auto‑failover, deterministic I/O.

  • Triple Modular Redundancy (TMR)

    2oo3 voting on all communication paths; single‑point fault tolerant.

  • Cyber‑Resilient Architecture

    Signed firmware, no OS, whitelisted traffic only.

  • Multi‑Protocol Support

    TriNet, Modbus TCP/IP, OPC UA, EtherNet/IP (optional).

  • Full Safety Logic Access

    Read/write to all SIS variables, SOE logs, diagnostics.

  • Hot‑Swappable

    Replace online without system shutdown.

  • High Availability

    99.999% uptime; fault recovery ≤ 500 ms.

4. Technical Specifications

4.1 Communication Interfaces

  • Ports: 2 × RJ45 Gigabit Ethernet (10/100/1000 Mbps)

  • Redundancy: Hardware‑based, auto‑failover

  • Protocols: TriNet, Modbus TCP/IP, OPC UA, EtherNet/IP

  • Data Rate: Up to 1 Gbps

  • Determinism: ± 1 ms

4.2 Safety & Redundancy

  • Architecture: TMR, 2oo3 voting

  • Safety Integrity Level: SIL 3

  • Fault Coverage: > 99%

  • System Availability: 99.999%

4.3 Environmental

  • Operating Temperature: 0°C to +60°C

  • Storage Temperature: −40°C to +85°C

  • Humidity: 5%–95% non‑condensing

  • Vibration: 5–200 Hz, 1g

  • Protection Class: IP20

4.4 Power

  • Backplane Power: 5 VDC / 1.2 A (from Trident chassis)

4.5 Physical

  • Dimensions: 133 mm × 114 mm × 32 mm (5.25” × 4.50” × 1.25”)

  • Weight: ~0.35 kg

  • Mounting: Trident baseplate, 19” rack compatible

5. Functional Overview

  • Real‑Time Data Exchange

    Connects Tricon SIS to TriStation, HMI, DCS, historians.

  • TMR Communication Voting

    All messages triple‑voted; ensures data integrity.

  • Cyber Security Enforcement

    Blocks unauthorized access; meets IEC 62443‑3‑3.

  • SOE & Diagnostics

    Time‑stamps events (≤ 40 ms); reports link/port faults.

  • Remote Maintenance

    Secure remote configuration, diagnostics, and firmware updates.

6. LED Indicators

  • PWR (Green): Module power OK

  • RUN (Green): Module active, communicating

  • FAULT (Red): Module/port fault

  • LINK/ACT (Yellow): Ethernet link/activity (per port)

7. Installation & Configuration

  1. Insert 2481 into an empty Trident baseplate slot.

  2. Connect Ethernet cables to NET1 / NET2 RJ45 ports.

  3. Use TriStation 1131 to:

    • Set IP addresses (static only)

    • Enable protocols (TriNet, Modbus, etc.)

    • Configure redundancy (active/standby)

    • Set access control lists (ACLs)

  4. Verify LED status: PWR + RUN green, no FAULT red, LINK/ACT blinking.

8. Typical Applications

  • SIS ↔ DCS high‑speed data link

  • TriStation engineering workstation connection

  • Safety data historian interface

  • Remote SIS monitoring & diagnostics

  • ESD/BMS system integration with plant network

9. Maintenance

  • Hot‑swap faulty 2481 without shutdown.

  • Inspect Ethernet cables/connectors.

  • Review link/fault logs via TriStation.

  • Update signed firmware (secure only).

10. Ordering Information

  • Model: 2481

  • Description: Triconex Trident TMR Communication Gateway Module (Dual Gigabit Ethernet, SIL 3)

  • Compatible with: Trident Chassis, 2101/3700A MP Modules, TriStation 1131



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