Model Interpretation

4509: Hiway Interface Module (HIM), 2×Isolated Hiway Channels, SIL3, TMR

P/N: 3000590‑xxx series

Family: 4509 (legacy Hiway gateway; no Ethernet/serial)

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

Key Distinction: Proprietary Hiway only (vs 4119A/4351B with serial/Ethernet)

Technical Parameters

Electrical & Power

Power: 24VDC (backplane‑supplied, 20.4–28.8VDC), 1.5A max per Hiway leg

Isolation: AC‑coupled isolation between 2 Hiway channels; 2500Vrms port‑to‑backplane

Redundancy: TMR 2oo3 communication channels (matches Tricon controller TMR); hot‑spare capable

Communication Interfaces

Hiway Channels (2×Proprietary): Isolated, AC‑coupled; connects to Honeywell TDC‑2000 (Data Hiway) / TDC‑3000 (Hiway Gateway/LCN)

Hiway Addresses: 8 configurable addresses (matches DHP slot structure)

Data Refresh: <0.5 seconds (full data update)

No Ethernet/Serial: No TCP/IP, Modbus, or RS‑232/485 support (Hiway‑only)

Mechanical

Form Factor: 3U, 19” rack, 1 slot

Dimensions (W×H×D): 145 × 120 × 55 mm

Weight: ~0.8 kg

Mounting: Plug‑in backplane, hot‑swappable

Environmental

Operating Temp: 0°C to +60°C (non‑condensing)

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, HWY1, HWY2

Monitoring: Hiway link status, error counters, TMR voting health, channel isolation

Protection: ESD, surge, short‑circuit, overtemperature

Core Functions

Legacy Honeywell DCS Gateway

The only Tricon module natively supporting Honeywell Hiway/Data Hiway; bridges Tricon SIS to TDC‑2000/TDC‑3000 without middleware.

SIL3 Fault‑Tolerant Communication

TMR 2oo3 voting across 2 isolated Hiway channels eliminates single‑point failures; all data paths are SIL3‑compliant for safety loops.

Real‑Time Data Exchange

8 Hiway addresses and <0.5s refresh enable fast, reliable sharing of safety data (ESD, BMS, HIPPS) with Honeywell DCS.

Hot‑Swap & Redundancy

Online replacement without shutdown; dual Hiway channels support network redundancy for maximum availability.

Backward Compatibility

Works with legacy Tricon v9–v11 chassis and 3503/3504 I/O racks; avoids costly full‑system upgrades for facilities with older Honeywell DCS.

Applications

Oil & Gas: Tricon ESD/F&G integration with Honeywell TDC‑3000 DCS; remote wellsite safety data exchange

Power Generation: Boiler BMS/Turbine TMC connectivity to Honeywell TDC‑2000; safety loop monitoring

Chemical/Refining: SIL3 safety data sharing between Tricon SIS and Honeywell DCS; batch process safety

Legacy System Modernization: Connecting pre‑Ethernet Honeywell DCS to modern Tricon SIS without DCS replacement