{"product_id":"ec401-50-yokogawa-prosafe-rs-esb-bus-coupler-module","title":"EC401-50 Yokogawa ProSafe-RS ESB Bus Coupler Module","description":"\u003ch2\u003eYokogawa EC401-50 ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa EC401-50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eEC401\u003c\/strong\u003e ESB Bus Coupler Module, operates as a dedicated hardware component for interfacing field control units with remote I\/O node units across CENTUM VP and ProSafe-RS control platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption \/ Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC401\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eESB Bus Coupler Module (for N-IO\/FIO, 1-Port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eStandard type with no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpecification Code\u003c\/td\u003e\n\u003ctd\u003eBasic type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eEC401-50\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\u003e0.45 kg (Net), 2.0 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard rack-mounted module enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~1.5 A @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Bus\u003c\/td\u003e\n\u003ctd\u003eESB Bus (Enhanced Communication Bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP \/ ProSafe-RS Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation via ESB bus interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual-redundant bus configuration supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 (IEC 61508 compliant in safety architectures)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe EC401-50 bus coupler module routes real-time signal frames between central processors and downstream expansion node racks over high-speed ESB bus interfaces. Optical signal transmission paths maintain galvanic isolation between the controller rack and remote node chassis, preventing field electrical noise from entering processing backplane buses. The module seamlessly handles data multiplexing for 4-20 mA HART loop protocol instruments and safety-critical I\/O cards, ensuring uninterrupted determinism across distributed node topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the EC401-50 module handle communication fault detection on the ESB bus?\u003c\/p\u003e\n\u003cp\u003eA: The module performs hardware self-checks and frame error detection via built-in diagnostic routines, driving dedicated status LEDs and signaling the controller upon data transmission degradation.\u003c\/p\u003e\n\u003cp\u003eQ: Can two EC401-50 modules be installed in a single controller chassis for bus redundancy?\u003c\/p\u003e\n\u003cp\u003eA: Yes, dual EC401-50 modules mount into primary and secondary bus slots of the field control unit to establish seamless line-redundant ESB bus paths.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the EC401-50 coupler module into its assigned slot on the field control unit rack, ensuring the rear backplane connectors align before pressing the module firmly home. Secure top and bottom retaining screws to establish structural retention and electrical ground continuity to the rack frame. Connect dedicated ESB bus cables between the front interface ports and node units, ensuring locking latches click into place. Maintain appropriate bending radii for high-speed signal cables and keep interface wiring separated from high-voltage AC lines to prevent noise induction.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43838756159578,"sku":"EC401-50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/362_5b1b3f92-45e6-4b81-96f8-a689beb865d3.jpg?v=1786600137","url":"https:\/\/www.spareoil.com\/products\/ec401-50-yokogawa-prosafe-rs-esb-bus-coupler-module","provider":"SpareOil Automation","version":"1.0","type":"link"}