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4351B Triconex module parts Communication Module
The Triconex 4351B Communication Module is a Tricon Communication Module (TCM) designed to provide communication between Tricon safety controllers, engineering workstations, external host computers, and industrial automation systems. It supports Ethernet and serial communication, enabling data exchange between safety instrumented systems (SIS), distributed control systems (DCS), PLCs, and supervisory monitoring platforms.
Designed for compatible Tricon v10.0 and later systems, the Triconex 4351B features two copper Ethernet ports and four serial communication ports. It supports industrial communication protocols including Modbus, TriStation, TCP/IP, and SNTP, making it suitable for process automation, safety monitoring, and industrial control system integration.
| Parameter | Specification |
|---|---|
| Brand | Triconex |
| Manufacturer | Schneider Electric |
| Model Number | 4351B |
| Product Type | Tricon Communication Module (TCM) |
| Product Series | Tricon Safety Instrumented System |
| System Compatibility | Tricon v10.0 and later, subject to system configuration |
| Ethernet Ports | 2 copper Ethernet ports |
| Ethernet Interface | 10/100Base-T, RJ45 |
| Serial Ports | 4 serial ports |
| Serial Interface | RS-232 / RS-485, DB9 connectors |
| Maximum Serial Speed | Up to 115.2 kbps per port |
| Aggregate Serial Data Rate | Up to 460.8 kbps |
| Port Isolation | 500 VDC |
| Communication Protocols | Modbus, TriStation, TCP/IP, ICMP, SNTP, TSAA, Peer-to-Peer UDP/IP |
| Additional Interfaces | Trimble GPS and JetDirect support, depending on configuration |
| Status Indicators | PASS, FAULT, ACTIVE, FIRM, LINK, TX/RX |
| Installation | Compatible Tricon chassis communication slot |
| Typical Applications | SIS, DCS integration, process monitoring and industrial communication |
The 4351B provides two copper Ethernet ports for communication with compatible industrial networks and host systems. These interfaces support data exchange between Tricon controllers, engineering workstations, and supervisory systems.
Four serial ports support compatible RS-232/RS-485 communication connections. Each port can be configured for supported applications such as Modbus communication, subject to the selected port configuration and system requirements.
The module supports several industrial communication protocols, including:
- Modbus TCP/IP
- Modbus serial communication
- TriStation
- TCP/IP
- SNTP time synchronization
- TSAA
- Peer-to-Peer communication over UDP/IP
- Trimble GPS interface support
The module provides specified 500 VDC port isolation to help separate communication interfaces electrically and reduce the impact of certain electrical disturbances on connected equipment.
A faulty Tricon Communication Module can be replaced while the controller remains online when the applicable system procedures and operating conditions permit. However, the TCM does not provide a hot-spare feature, so replacement should follow the approved maintenance procedure.
Front-panel indicators provide status information for module operation and communication activity. These indicators help maintenance personnel identify communication problems and investigate module faults during troubleshooting.
The Triconex 4351B is suitable for communication tasks in industrial environments where compatible Tricon safety controllers exchange information with other control and monitoring systems.
Typical application areas include:
- Oil and gas processing facilities
- Petrochemical and chemical plants
- Power generation
- Industrial process automation
- Safety Instrumented Systems (SIS)
- Distributed Control Systems (DCS)
- PLC and supervisory system integration
- Industrial monitoring and data acquisition
The Triconex 4351B is designed for compatible Tricon controller architectures. Before integrating it into an existing system, verify the following:
- Tricon controller model and system software version
- Communication module slot and logical-slot configuration
- Ethernet network settings and addressing
- Serial interface wiring and communication parameters
- Modbus register mapping and variable aliases
- Required protocol and port configuration
- Applicable system configuration and maintenance procedures
- Dual Ethernet connectivity for industrial network integration
- Four serial communication ports for legacy and field-system connectivity
- Support for multiple industrial protocols
- 500 VDC port isolation as specified for the module
- Front-panel diagnostics for maintenance and troubleshooting
- Integration with compatible Tricon safety systems
- Suitable for industrial communication and process monitoring
- Useful as a replacement spare for existing installations
When purchasing a Triconex 4351B Communication Module, confirm that the part number matches the existing installation. Communication modules with similar model numbers may use different network interfaces or hardware configurations.
For replacement planning, provide the following information:
- Required quantity
- Existing module part number and revision
- Tricon controller model
- Required condition: new, surplus, or refurbished
- Delivery destination and expected delivery date
The Triconex 4351B is a Tricon Communication Module (TCM) that provides Ethernet and serial communication for compatible Tricon safety controller systems.
It has two copper Ethernet ports and four serial communication ports.
Supported protocols include Modbus, TriStation, TCP/IP, ICMP, SNTP, TSAA, and Peer-to-Peer UDP/IP. Additional functions depend on the interface and configuration.
No. It is documented for Tricon v10.0 and later systems. Always verify compatibility with the installed controller, system version, and slot configuration.
Online replacement may be possible under approved system procedures, but the module does not have a hot-spare feature. Consult the applicable Tricon maintenance documentation before replacement.
Triconex 4351B communication module
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