4351B Triconex DCS Communication Module

• Brand
  Triconex
• Model
  4351B
• Product Name
  Tricon Communication Module (TCM)
• Country of Origin
  United States
• HS Code
  8538900000
• Dimensions
  405mm(W)×21mm(H)×400mm(D)
• Weight
  3.18kg
• Operating Temperature
  -50℃ to +120℃
• Storage Temperature
  -36℃ to +138℃
• Power Supply
  24VDC (18~30VDC)
• Warranty
  12 month
• Product Status
  New and original

Triconex 4351B Product Specification Document

Input Specifications

1.Power Supply Input: Backplane 24VDC (18~30VDC), power consumption ≤20W

2.Backplane Bus Input: TMR triple redundant synchronous bus signal input

3.Communication Input: Dual RJ45 Ethernet input; 4-channel DB9 RS232/RS485 serial input

4.Debug Input: Reserved DB9 debugging port for program download & maintenance

Output Specifications

1.Communication Output: 10/100Mbps Ethernet protocol data output; serial Modbus RTU master/slave output

2.Backplane Data Output: Redundant three-channel safety data interaction with Tricon CPU

3.Diagnostic Output: PASS/FAULT/LINK/TX/RX LED status indication

4.Time Synchronization Output: SNTP network time synchronization signal output

Main Functions

1.Multi-protocol conversion communication: Support Modbus TCP, Modbus RTU, TriStation, Peer-to-Peer UDP/IP, SNTP protocols

2.Safety data forwarding: Real-time transmit SIS interlock status, fault signal and process value to upper DCS/SCADA

3.System programming interface: Connect TriStation software for Tricon controller configuration, debugging and firmware upgrade

4.Multi-point networking: Support multiple Tricon controllers peer-to-peer data sharing for large-scale safety system linkage

5.Time synchronization: Unify clock for whole plant safety control system via SNTP protocol

6.Communication fault diagnosis: Real-time monitor port link state, automatically locate communication breakdown position

7.Redundant backup operation: Dual 4351B parallel configuration achieves seamless switching to avoid communication failure

Product Advantages

1.SIL3 safety communication: TMR redundant architecture guarantees safety data transmission without distortion, fully match SIS safety requirement

2.Abundant port configuration: 2 Ethernet + 4 serial ports integrate multi-device connection, save protocol gateway cost

3.Multi-protocol compatibility: Directly dock mainstream industrial control systems and field instruments, excellent system integration

4.Hot-swap maintainability: Online module replacement reduces industrial plant system downtime loss

5.Strong environmental adaptability: Wide temperature range and anti-interference performance adapt offshore, chemical and thermal power harsh working conditions

6.Perfect Tricon matching: Native match full Tricon series CPU and rack, unified TriStation software management

7.High transmission determinacy: Low-latency communication ensures fast response of safety emergency shutdown action

Application Cases

1.Oil & Gas Industry: Offshore platform, refinery, natural gas pipeline ESD system communication gateway connecting SIS and DCS

2.Petrochemical Industry: Ethylene, coal chemical plant reactor BMS burner management system data interaction module

3.Thermal Power Industry: Turbine overspeed protection, boiler safety interlock system communication transmission unit

4.LNG Energy Industry: Liquefied natural gas storage tank safety monitoring system data exchange component

5.Fertilizer Chemical Industry: Ammonia synthesis high-pressure workshop safety interlock communication connection

6.Pharmaceutical High-risk Chemical: Toxic flammable medium reaction workshop SIS upper monitoring communication module

7.Metallurgy Industry: High-temperature smelting furnace safety trip system data transmission interface

Core Characteristics

1.Operating Temperature: -40℃ ~ +70℃; storage temperature -40℃ ~ +85℃

2.Protection Grade: IP20, installed inside standard Tricon rack cabinet

3.Safety Certification: IEC61508 SIL3, TÜV, CE, UL, ATEX Zone2 certification

4.Redundant Feature: TMR triple-channel fault voting, single channel fault no communication interruption

5.Transmission Rate: Total serial ports maximum aggregate baud rate 460.8Kbps; Ethernet 10/100Mbps auto-adaptive

6.EMC Performance: Comply with IEC61000 industrial anti-interference standard, anti-vibration design

7.Installation Feature: Hot-swappable module structure, online replacement without system shutdown