{"product_id":"sec401-51-yokogawa-esb-bus-coupler-new-original-stock","title":"SEC401-51 YOKOGAWA ESB Bus Coupler | New \u0026 Original Stock","description":"\u003cp\u003eConfigured for high-speed, deterministic data transmission within the CENTUM VP control architecture, the \u003cstrong\u003eYOKOGAWA SEC401-51\u003c\/strong\u003e (\u003cstrong\u003eSEC401\u003c\/strong\u003e ESB Bus Coupler) acts as the critical bridge for signal synchronization between Field Control Units (FCUs) and remote I\/O node units.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSEC401-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYOKOGAWA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 x 12.4 x 12.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSubject to backplane supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eESB Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRack mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Connectivity and Signal Coupling\u003c\/h3\u003e\n\u003cp\u003eThe SEC401-51 module serves as the primary interface managing the synchronization of data packets across the ESB bus. Its internal architecture is designed to handle high-density I\/O traffic with minimal latency, ensuring that process control commands and feedback loops remain stable. The module features integrated galvanic isolation, which protects the sensitive system bus from transient electrical interference originating in field-side wiring. By maintaining precise impedance matching across the bus segment, the SEC401-51 prevents signal reflection and jitter, ensuring that the control system can reliably execute time-critical operations without packet loss.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the SEC401-51 module hot-swappable during system operation?\u003c\/p\u003e\n\u003cp\u003eA: No. This module is not designed for hot-swapping. The control station power must be fully de-energized and appropriate safety protocols must be followed before installing or removing the module to prevent electrical damage to the backplane or the coupler itself.\u003c\/p\u003e\n\u003cp\u003eQ: How does the SEC401-51 differ from other ESB bus coupler variants?\u003c\/p\u003e\n\u003cp\u003eA: The suffix \"-51\" indicates specific hardware revisions and interface parameters tailored for compatibility with defined CENTUM VP control station configurations. Always verify that the model and suffix code match your existing system documentation before proceeding with a replacement.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the control station power is completely shut down and locked out following site-specific safety procedures.\u003c\/li\u003e\n\u003cli\u003eCarefully align the SEC401-51 with the designated backplane slot guide rails to avoid damage to the connector pins.\u003c\/li\u003e\n\u003cli\u003eInsert the module firmly into the slot until the locking mechanism engages, ensuring consistent electrical contact with the backplane.\u003c\/li\u003e\n\u003cli\u003eVerify that all shield drain wires from the ESB bus cables are properly terminated to the designated grounding bar to minimize electromagnetic interference (EMI) and potential ground loops.\u003c\/li\u003e\n\u003cli\u003eInspect the ESB bus cable connections for integrity, ensuring all connectors are securely fastened and protected from vibration.\u003c\/li\u003e\n\u003cli\u003eAfter installation and system power-up, use the engineering station to perform a communication diagnostic test to confirm that the node unit is properly recognized and the bus link is healthy.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49199718629628,"sku":"SEC401-51","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/SEC401-512.jpg?v=1781487120","url":"https:\/\/www.electronicplc.com\/products\/sec401-51-yokogawa-esb-bus-coupler-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}