{"product_id":"esb-bus-coupler-module-yokogawa-sec401-11-s1","title":"ESB Bus Coupler Module | Yokogawa SEC401-11 S1","description":"\u003ch2\u003eYokogawa SEC401-11 S1 ESB Bus Coupler Modules\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SEC401-11 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSEC401\u003c\/strong\u003e Communication Interface Module, operates as a dedicated hardware component for deterministic inter-rack bus communication execution within CENTUM VP and ProSafe-RS systems. The unit links system nodes over dual redundant Ethernet communication paths, transferring high-speed data packets across backplane architectures. Featuring integrated hardware diagnostic indicators and 1500 VAC dielectric isolation, the module maintains real-time control network stability across distributed automation platforms.\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\u003eSEC401-11 S1\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\u003e0.35 - 0.40 kg (1.5 kg shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa I\/O rack slot footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~400 mA at 5 VDC (supplied from system backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP, Ethernet TCP\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Ports\u003c\/td\u003e\n\u003ctd\u003eDual redundant Ethernet ports (RJ-45)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e100 Mbps full duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e10 to 95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 VAC between communication and system logic for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and DCS Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eYokogawa distributed control platforms depend on physical galvanic isolation to protect central backplane processors from transmission transients and ground potential loops. The SEC401-11 S1 incorporates 1500 VAC dielectric isolation between external communication interfaces and internal system electronics. When operating in hybrid enclosures alongside 4-20 mA HART loop instruments, this high withstand isolation suppresses common-mode noise and prevents signal degradation across redundant bus lines.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the SEC401-11 S1 active in current production, or does a direct replacement exist? A: The SEC401-11 S1 has reached end-of-production status, and Yokogawa designates the SEC401-51 ESB Bus Coupler Module as its functional replacement.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module execute failover during an active communication port fault? A: The hardware employs dual redundant RJ-45 Ethernet ports to switch network traffic to the secondary channel automatically without disrupting DCS process execution.\u003c\/p\u003e\n\u003cp\u003eQ: How does the SEC401-11 S1 draw operating electrical power? A: The module draws power directly through the system rack backplane, consuming approximately 400 mA from the internal 5 VDC power bus.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower off the target system rack or verify dual-redundant partner module status before inserting or removing the unit from the backplane slot.\u003c\/li\u003e\n\u003cli\u003eAlign the module rear connector carefully with the backplane guide rails to prevent pin deformation during physical insertion.\u003c\/li\u003e\n\u003cli\u003ePlug network cables securely into both RJ-45 redundant bus ports until the retaining clips engage firmly.\u003c\/li\u003e\n\u003cli\u003eRoute communication cables through isolated wiring ducts separated from high-voltage AC lines to prevent electro-magnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003eConnect cable shield drain wires directly to the local cabinet earthing bus bar using short, low-impedance ground connections.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43787404279898,"sku":"SEC401-11 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/171._8d9bd161-1ed4-4ad8-820e-0558a5e3a2ab.jpg?v=1785898890","url":"https:\/\/www.spareoil.com\/es\/products\/esb-bus-coupler-module-yokogawa-sec401-11-s1","provider":"SpareOil Automation","version":"1.0","type":"link"}