{"product_id":"yokogawa-sb401-11-esb-bus-interface-slave-module","title":"Yokogawa SB401-11 ESB Bus Interface Slave Module","description":"\u003cp\u003eConfigured for high-speed bus extension and signal routing in CENTUM VP platforms, the \u003cstrong\u003eYokogawa SB401-11\u003c\/strong\u003e (\u003cstrong\u003eSB401\u003c\/strong\u003e ESB Bus Interface Slave Module) provides direct physical\/electrical execution.\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\u003eModel Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix Code\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\u003eSB401\u003c\/td\u003e\n\u003ctd\u003e-1\u003c\/td\u003e\n\u003ctd\u003eESB Bus Interface Slave Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eBasic Type \/ Standard Configuration Style\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\u003eSB401-11\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\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Interface Slave Module\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\u003e1.5 kg (Shipping Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Rack Slot Dimensions\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\u003e24 VDC System Power Load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Slave Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Rack\u003c\/td\u003e\n\u003ctd\u003eRemote Node \/ Extension Node Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Topology\u003c\/td\u003e\n\u003ctd\u003ePoint-to-Point ESB Bus Architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module functions as the remote slave interface point on the ESB bus, routing digital communication packets between remote I\/O nodes and the central controller. High-grade channel-to-channel isolation safeguards sensitive remote I\/O channels against common-mode electrical transients, ensuring uncorrupted transmission of analog field signals using the 4-20 mA HART loop protocol across distributed DCS racks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary operational role of the Yokogawa SB401-11 in a DCS rack?\u003c\/p\u003e\n\u003cp\u003eA: The SB401-11 acts as an ESB bus slave interface, mounted in a remote I\/O expansion chassis to receive and execute bus communication data transmitted from the master interface module.\u003c\/p\u003e\n\u003cp\u003eQ: How does the SB401-11 ensure bus signal integrity during industrial electrical disturbances?\u003c\/p\u003e\n\u003cp\u003eA: Internal galvanically isolated bus drivers prevent field-side ground loops and high-voltage spikes from propagating back into the master CPU rack backplane.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize the remote expansion rack before sliding the SB401-11 slave module into its assigned backplane slot.\u003c\/li\u003e\n\u003cli\u003eWear an ESD wrist strap attached to a cabinet earth ground when handling the module to protect internal logic circuits.\u003c\/li\u003e\n\u003cli\u003ePush the module card edges along the guide rails until the backplane multi-pin interface snaps into place.\u003c\/li\u003e\n\u003cli\u003eFasten the front panel locking screws to complete chassis frame grounding and secure the module against vibration.\u003c\/li\u003e\n\u003cli\u003eConnect dedicated ESB bus cables with factory-molded connectors and maintain strict adherence to maximum bus cable run lengths.\u003c\/li\u003e\n\u003c\/ol\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\u003eSNT401-53\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\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eOptical ESB Bus Repeater Module\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\u003eStandard Bus Module Weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Rack\/Panel Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC System Power Load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Channels\u003c\/td\u003e\n\u003ctd\u003e2-Channel ESB Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Medium\u003c\/td\u003e\n\u003ctd\u003eOptical Fiber Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 5 km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eDigital Optical Signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eFiber Optic Connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e10 Grms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMI\/RFI Immunity\u003c\/td\u003e\n\u003ctd\u003eEnhanced High-Immunity Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBus Isolation \u0026amp; Protocol Communication Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe module bridges long-distance node segments by converting high-speed electrical ESB bus signals into digital optical streams. Fiber optic transmission provides complete galvanic isolation across bus links, suppressing high EMI\/RFI noise and preventing ground potential differentials across distributed I\/O racks over distances reaching up to 5 km.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What transmission distance can be achieved using the Yokogawa SNT401-53 module?\u003c\/p\u003e\n\u003cp\u003eA: The SNT401-53 supports optical fiber communication extensions of up to 5 km between ESB bus nodes without degrading signal synchronization.\u003c\/p\u003e\n\u003cp\u003eQ: How does the optical interface protect against industrial noise in harsh environments?\u003c\/p\u003e\n\u003cp\u003eA: By utilizing fiber optic media, the SNT401-53 isolates communication pathways from electromagnetic interference (EMI) and radio frequency interference (RFI) while offering 10 Grms vibration resistance.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify that 24 VDC cabinet power is disconnected before installing or servicing the SNT401-53 module on the mounting panel.\u003c\/li\u003e\n\u003cli\u003eClean all optical fiber connector ferrules with isopropyl alcohol and lint-free wipes prior to insertion into the module optical ports.\u003c\/li\u003e\n\u003cli\u003eObserve minimum bending radius specifications for optical fiber cables during cabinet routing to prevent attenuation loss or glass fiber fracture.\u003c\/li\u003e\n\u003cli\u003eSecure the module panel-mount hardware to a grounded metal substrate to maintain proper frame grounding and mechanical stability.\u003c\/li\u003e\n\u003cli\u003eKeep protective dust caps installed on unused fiber optic connector ports to prevent ambient dust and contaminant buildup.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52596838531352,"sku":"SB401-11","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/NFAF135-S50_3_a7867fdc-7184-43e2-8089-64078bbaf617.jpg?v=1788248424","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-sb401-11-esb-bus-interface-slave-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}