Model Interpretation

4329: Network Communication Module (NCM), 2×BNC Ethernet (10BASE2) + 1×RS‑232, SIL3, TMR

P/N: 3000589‑xxx series

Family: 4329 (Ethernet‑only NCM; vs 4351B Eth+Serial, 4119A serial)

Compatibility: Tricon 8110/8111/8112 chassis; hot‑swappable; TMR/non‑TMR

Key Distinction: Legacy 10BASE2 (BNC/coax); no RJ45; dedicated Tricon safety network + open external network

Technical Parameters

Electrical & Power

Power: 24VDC (backplane, 20.4–28.8VDC), 1.0A max

Isolation: 500VDC port‑to‑backplane; galvanic isolation for Ethernet

Redundancy: TMR 2oo3 voting; supports dual‑port network redundancy

Communication Interfaces

Ethernet (2×BNC, 10BASE2):

NET 1: Safety network (peer Tricons, time sync, TSAA)

NET 2: Open network (DCS, OPC, TriStation, SOE)

Speed: 10 Mbps; Cable: RG58 50Ω coax; Max distance: 185m (no repeater)

Serial (1×RS‑232, D‑Sub 9‑pin): Local diagnostics/engineering

Protocols: TSAA (Tricon Safety Application Architecture), proprietary Tricon protocols; no Modbus TCP/RTU

Mechanical

Form Factor: 3U, 19” rack, 1 slot

Dimensions (W×H×D): 483 × 127 × 305 mm

Weight: ~2.3 kg

Mounting: Plug‑in backplane, hot‑swappable

Environmental

Operating Temp: 0°C to +60°C

Storage Temp: −40°C to +85°C

Humidity: 5%–95% RH, non‑condensing

Certifications: IEC 61508 SIL3, TÜV, UL, CE, ATEX, FM

Diagnostics & Indicators

LEDs: PASS, FAULT, NET1, NET2

Monitoring: Link status, error counters, TMR voting health, time sync

Protection: ESD, surge, short‑circuit, overtemperature

Core Functions

Dual‑Port Ethernet Networking

NET1 (Safety) connects peer Tricon controllers for time synchronization and safety data exchange; NET2 (Open) links to DCS, OPC servers, and TriStation engineering tools.

SIL3 Fault‑Tolerant Communication

TMR 2oo3 voting eliminates single‑point failures; all data paths comply with SIL3 for safety‑critical loops.

Legacy 10BASE2 Coax Support

Dedicated BNC/coax ports for compatibility with older Tricon safety networks; no RJ45 Ethernet.

Hot‑Swap & Redundancy

Online replacement without shutdown; dual‑port support for network redundancy.

System Integration & Diagnostics

Enables SOE logging, remote diagnostics, and TriStation programming; propagates system alarms to external hosts.

Applications

Oil & Gas: Tricon ESD/F&G peer networking; safety data exchange with DCS/OPC

Chemical/Refining: SIL3 safety network for multiple Tricon controllers; TriStation engineering access

Power Generation: Boiler BMS/Turbine TMC peer communication; safety system time synchronization

Legacy System Upgrades: Connecting older Tricon systems to modern DCS/OPC via 10BASE2 coax