Triconex 4351B TCM Module | 4 Serial 2 Ethernet Communication

Product Overview

• The Triconex 4351B is a high-performance Tricon Communication Module (TCM).
• It facilitates secure data exchange between Tricon controllers and external networks.
• This module supports critical protocols for modern industrial automation environments.

Technical Specifications

• Brand: Triconex (Schneider Electric)
• Model: 4351B
• Series: Tricon Communication Module (TCM)
• Serial Ports: 4 RS-232/RS-485 ports using DB-9 connectors.
• Network Ports: 2 10/100BaseT Copper Ethernet ports (RJ-45).
• Port Isolation: Rated at 500 VDC for circuit protection.
• Communication Speed: 10/100 Mbps (Ethernet) and 115.2 Kbps (Serial).
• Protocols: Modbus, TCP/IP, TSAA, SNTP, and Peer-to-Peer synchronization.
• Modbus Functions: Supports codes 01-08, 15, and 16 for data integrity.
• Anti-Interference: Enhanced galvanic isolation for high-noise industrial zones.
• Status Indicators: PASS, FAULT, ACTIVE, FIRM, LINK, TX, and RX.
• Weight: 3.18 Kg (approximate module weight).

Configuration Breakdown

• TCM Series Connectivity Architecture:
  • 4351 Series (Copper-Based Interface)
    • 4351B: Dual RJ-45 10/100BaseT ports.
    • 4353: High-speed 100 Mbps dedicated copper.
  • 4352 Series (Fiber-Based Interface)
    • 4352B: Dual MT-RJ fiber optic connectors.
    • 4354: Fiber interface with integrated OPC server support.

Global PLC Spare HUB Review

• The Triconex 4351B offers unmatched reliability for safety-critical communication.
• Engineering teams value the TCM for its robust triple-modular redundant integration.
• It provides a versatile bridge for DCS, SCADA, and HMI systems.
• The 4351B ensures high availability in Oil & Gas and Power industries.
• This module is essential for plants requiring SIL3 safety compliance.

Installation & Compatibility

• Chassis Placement: Installs into any standard Tricon communication slot.
• Software Sync: Fully compatible with TriStation 1131 for system logic.
• Hot-Swap Support: Replace modules online without interrupting controller operation.
• Device Compatibility: Works with Modbus masters, printers, and GPS time clocks.

Diagnostics & Maintenance

• Front-panel LEDs provide immediate hardware health and link status.
• The 4351B supports internal loopback tests for port verification.
• System alarms trigger automatically upon detecting communication timeouts.
• Firmware integrity checks prevent the execution of corrupted code.

Typical Application Scenarios

• Interfacing Tricon systems with plant-wide Ethernet backbones.
• Connecting to Modbus RTU field devices via RS-485.
• Establishing high-speed Peer-to-Peer links between safety controllers.
• Synchronizing plant time via SNTP or external GPS sources.

Shipping & Service Terms

• Packing List: 1 x Triconex 4351B Module.
• Warranty: 12-month comprehensive warranty for peace of mind.
• Dispatch: Orders ship within 24-48 hours of confirmation.
• Courier Services: Global express delivery via FedEx, UPS, or DHL.

FAQ & Selection Guide

• How do I choose between the 4351B and 4352B?
• Select the 4351B for copper-wire RJ-45 local networking within cabinets.
• Does this module support IP Multicast?
• Yes, the 4351B supports TSAA with IP Multicast for efficient data broadcasting.
• What is the purpose of the 500 VDC isolation?
• It protects the Tricon backplane from electrical surges on external lines.
• Can I use the 4351B for network printing?
• The module supports Jet Direct protocols for automated report printing.
• What is the maximum serial baud rate?
• All four serial ports support speeds up to 115.2 Kbps.