{"product_id":"yokogawa-ec401-10-centum-vp-esb-bus-coupler-module","title":"YOKOGAWA EC401-10 CENTUM VP ESB Bus Coupler Module","description":"\u003ch2\u003eYOKOGAWA EC401-10 CENTUM ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA EC401-10\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eEC401\u003c\/strong\u003e ESB Bus Coupler Module, operates as a dedicated hardware component for communication interface tasks between local and expansion I\/O subsystems within CENTUM VP \/ CS 3000 Field Control Station networks.\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\u003eType\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuffix Code\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\u003eSuffix 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\u003eEC401-10\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\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg (Shipping Weight) \/ 0.3 kg (Net Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e15.2 cm x 15.2 cm x 5.1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eInterfaces local and expansion I\/O nodes with the host FCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eProprietary Yokogawa ESB Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation between system backplane and bus lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eDual-bus transmission monitoring, parity checks, and hardware loopback testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSlot-mounted in Field Control Unit (FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eESB Bus Communication Interface and Galvanic Isolation\u003c\/h3\u003e\n\u003cp\u003eTo maintain continuous data synchronization between the Field Control Station (FCS) processor card and the remote node interface modules, the unit utilizes dual-redundant ESB bus lines. The module features integrated galvanic isolation circuits that electrically decouple the internal rack backplane logic from the long-distance copper transmission cables. This structural separation prevents the propagation of electromagnetic interference and ground-potential differences across separate cabinets, suppressing noise and safeguarding high-speed data frame integrity under high-density switching conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the unit support redundant configurations, and how is line switching managed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. When paired with a second module in a redundant slot configuration, the hardware actively monitors transmission frame errors. If a communication failure occurs on the primary line, control switches to the secondary bus in less than 1 millisecond.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module be hot-swapped while the Field Control Station is running?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. Replacing an active ESB bus coupler while the FCS is online can interrupt the communication path to all connected expansion I\/O nodes. Power down the corresponding rack branch or ensure system standby protocols are active before extraction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the host controller detect a physical cable disconnection on the ESB bus?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The module runs hardware-level loopback diagnostics. A physical line break disrupts the continuous carrier signal, prompting the module to set a transmission-error flag in the system status registers and trigger a diagnostic alarm on the operator console.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBus Cable Bend Radius:\u003c\/strong\u003e Maintain a minimum bend radius of 75 mm for all ESB bus cables to prevent copper core deformation and signal attenuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Terminal:\u003c\/strong\u003e Securely connect the ESB bus cable shield terminations to the system cabinet's functional instrument ground bar. Do not daisy-chain ground lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Allocation:\u003c\/strong\u003e Install the module only in the dedicated coupler slots of the Field Control Unit (FCU) backplane as specified in the system configuration drawing to prevent logic initialization errors.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43661890388058,"sku":"EC401-10","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/162._c0c6935e-f88d-4e8c-be89-dc915ab784f5.jpg?v=1784094541","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ec401-10-centum-vp-esb-bus-coupler-module","provider":"SpareOil Automation","version":"1.0","type":"link"}