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- Warehouse: Spot
- Warranty: 365 days
- Quality: Original module
- Condition: New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat:18059884790
- E-mail: plc66@qq.com
Triconex TCM4351B Tricon Communication Module
Product Brief Description
Triconex TCM4351B (4351B) is a TMR triple modular redundant communication gateway module for Tricon SIS safety instrumented system. It is used to realize data exchange between Tricon main controller, engineering workstation, DCS/SCADA and field Modbus devices. It adopts hot-swappable rack installation, complies with SIL3 safety standard, and is widely used in ESD, F&G, BMS and HIPPS safety systems.

Features
- Interface: 2×10/100Base-T RJ45 Ethernet ports + 4×DB9 serial ports (configurable RS232 / RS485)
- Supported protocols: Modbus RTU/TCP master/slave, TSAA, TriStation, SNTP, peer-to-peer UDP communication
- 500VDC galvanic isolation between ports, effectively suppress external interference
- TMR triple redundant design, continuous self-diagnosis, hot swap without system shutdown
- Support time synchronization, data upload to HMI/DCS, and download of safety logic
- Auxiliary power supply 24VDC, compatible with Tricon v9.6, v10, v11 versions
- Configuration software: TriStation 1131 for communication parameter setting and diagnosis
Application Scenarios
- Oil & gas, refinery ESD emergency shutdown safety system
- Power plant gas turbine, boiler burner management BMS system
- Chemical plant F&G fire and gas detection interlock control
- HIPPS high integrity pressure protection system communication gateway
- Legacy Tricon 3008 / 3009 rack spare replacement and communication expansion
FAQ
Q: What is the difference between TCM4351B and 4352B?
A: 4351B is copper Ethernet RJ45 version; 4352B uses fiber MT-RJ interface for long-distance optical fiber communication.
Q: What is the difference between 4351A and 4351B?
A: 4351A is the old revision; 4351B is the upgraded revision with optimized firmware and circuit, most of the time they are interchangeable.
Q: Can TCM4351B work alone?
A: No, it must be inserted into the Tricon rack and cooperate with the Tricon main processor card to run.
Q: Is this module discontinued?
A: Classic TCM4351B belongs to legacy Tricon hardware. New original production has stopped, and spare parts are mainly new surplus and fully tested refurbished units.
Q: What are common faults?
A: Port communication interruption, link loss, self-diagnosis fault alarm, serial port signal cannot be sent/received, Ethernet port no link.



