Triconex 4351B TCM Communication Module

Technical Specifications

Model:4351B

Brand:Triconex

Product Type:TCM Tricon Communication Module

Network Port:Dual 10/100 Mbps auto‑sensing Ethernet

Serial Interface:4 channels RS232 / RS485,max 115.2 kbps per channel

Isolation:500 VDC port‑to‑chassis isolation

Supported Protocol:TriStation,Modbus TCP/IP,SNTP,TSAA,SOE timestamp

Safety Level:SIL3 compliant

Feature:Hot‑swap supported,front‑panel LED status & fault indicator,comprehensive self‑diagnosis

System Compatibility:Tricon SIS safety system rack

Remark:Must install inside Tricon rack,work with Tricon CPU & power unit;OEM EOL legacy spare component

Module Form:Standard plug‑in rack module

Weight:3.18 kg

Dimension:490 mm×453 mm×68 mm

Protection Grade:IP20

Certification:SIL3,CE

Working Temperature:‑20℃ ~ +70℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Petrochemical,oil & gas,power plant ESD,F&G,BMS safety interlock system,realize engineering download,online monitoring,SOE event data upload,system maintenance and spare‑part replacement.

Product Details

4351B is TCM communication module for Triconex Tricon SIS safety instrumented system. It provides dual Ethernet and multi‑channel serial communication interface for safety rack.

It supports TriStation engineering software download,online status monitoring,SOE sequence‑of‑event timestamp transmission; compatible with Modbus TCP for upper DCS/SCADA data interaction. Port‑to‑chassis 500VDC isolation improves anti‑interference performance for industrial field.

Hot‑swap design allows module replacement without system shutdown. Front‑panel LED indicates link status,fault and working condition,with built‑in comprehensive diagnostic function. Widely deployed in petrochemical,oil‑gas,thermal power ESD emergency shutdown and burner management safety interlock racks.

Note:This is legacy EOL spare component,widely used for safety system spare‑part replacement.