{"product_id":"triconex-4351b-tricon-communication-module-tcm","title":"Module de communication Triconex 4351B (TCM)","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B (4351B)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTricon Communication Module (TCM)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eengineered by\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriconex\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto bridge the gap between the Triple Modular Redundant (TMR) controller and external systems. Operating as a critical data gateway, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efacilitates seamless integration with Distributed Control Systems (DCS), human-machine interfaces (HMI), and asset management software. In high-stakes environments such as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoil refineries, offshore platforms, and nuclear power facilities\u003c\/strong\u003e, this module ensures that safety-critical data is transmitted without latency or corruption. By supporting advanced protocols like\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTSAA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eModbus TCP\/IP\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eminimizes the risk of communication blackouts, directly contributing to reduced plant downtime and enhanced situational awareness for operators.\u003c\/p\u003e\n\u003ch3\u003eProtocol Support and Network Architecture\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed for maximum connectivity and data integrity. It features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efour serial ports\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003etwo network ports\u003c\/strong\u003e, providing a versatile interface for various industrial telemetry requirements. The module supports a broad spectrum of protocols, including\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriStation, Modbus (RTU\/TCP), Peer-to-Peer (UDP\/IP)\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNTP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor system-wide time synchronization. A standout feature is its support for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIP Multicast\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evia the TSAA protocol, which allows the Tricon system to broadcast safety data to multiple workstations simultaneously without overloading the network. With\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e500 VDC port isolation\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprotects the internal Tricon backplane from external electrical surges, ensuring that a fault in the external network does not compromise the safety logic.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTriconex (Schneider Electric)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTricon Communication Module (TCM)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSerial Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 (Up to 115.2 Kbps per port)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNetwork Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 (Copper\/Fiber Ethernet options)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEthernet Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10\/100 Mbps (Auto-negotiation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePort Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.18 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.50 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to 85 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5% to 95% (Non-condensing)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnectivity \u0026amp; Compatibility FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary difference between the 4351B and standard Ethernet modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized TCM that supports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePeer-to-Peer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecommunication between multiple Tricon chassis and offers native\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTSAA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprotocol support, which is essential for high-speed communication with TriStation 1131 software and specialized safety displays.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 4351B support fiber optic connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. While it includes copper Ethernet ports, it is compatible with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100 Mbps Fiber Ethernet\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einterfaces, providing EMI immunity and extended distance communication for remote expansion racks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module handle time synchronization?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNTP (Simple Network Time Protocol)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand supports Peer-to-Peer Time Synchronization, ensuring that all safety events across the plant are timestamped with millisecond precision for accurate post-incident analysis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run Modbus and TriStation protocols simultaneously on one module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis multi-protocol capable, allowing you to perform diagnostics via\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriStation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile simultaneously providing process data to a DCS via\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eModbus TCP\/IP\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eHardware Integration \u0026amp; Field Engineering Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNetwork Segmentation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor safety-critical applications, always isolate the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTCM 4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003enetwork from the general corporate IT network. Use a dedicated industrial switch to prevent broadcast storms from impacting the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePeer-to-Peer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esafety communication.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielding and Grounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen utilizing the serial ports for Modbus RTU, ensure that the shielded twisted pair (STP) cable is grounded at only one end (typically at the Tricon side) to prevent ground loops that can induce data errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundancy Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIn TMR systems, it is standard practice to install dual\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodules in the communication slots of the Main Chassis. This ensures that the loss of one module or one network cable does not result in a loss of visibility for the operators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental Resilience and Reliability\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis built to withstand the harshest industrial conditions. Its robust mechanical housing and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e500 VDC isolation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovide a buffer against the high-vibration and electrically noisy environments typical of turbine control and heavy manufacturing. Unlike standard commercial-grade switches, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4351B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis rated for continuous operation at\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e60 Celsius\u003c\/strong\u003e, ensuring reliability in non-climate-controlled cabinets. Furthermore, its downward compatibility with earlier Tricon v9.x and v10.x systems makes it an ideal choice for lifecycle extensions, providing modern Ethernet capabilities to legacy safety assets.\u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":53102421180779,"sku":"4351B","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/4351B-pja3awuvkqc.png?v=1776137125","url":"https:\/\/www.plcprotech.com\/fr\/products\/triconex-4351b-tricon-communication-module-tcm","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}