{"product_id":"yokogawa-rb401-rio-bus-module","title":"Yokogawa RB401 RIO Bus Module","description":"\u003cp\u003eConfigured for remote I\/O data routing and communication bridging in CENTUM VP systems, the \u003cstrong\u003eYokogawa RB401\u003c\/strong\u003e ( \u003cstrong\u003eRB401\u003c\/strong\u003e RIO Bus Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003e| Base Code | Model Suffix \/ Option | Description | |---|---| | RB401 | Standard | Remote I\/O (RIO) Bus Interface Module for Distributed Control Nodes |\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\u003eRB401\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\u003e3.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa rack module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard cabinet operating environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane bus powered \/ 24 VDC system auxiliary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRIO Bus Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP \/ CENTUM CS 3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Bus\u003c\/td\u003e\n\u003ctd\u003eRIO (Remote I\/O) bus interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic channel-to-system isolation\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\u003eGalvanic Isolation \u0026amp; RIO Bus Protocol Communication\u003c\/h3\u003e\n\u003cp\u003eThe RB401 module manages high-speed serial data transmission between local baseplates and remote field sub-nodes over dedicated RIO bus channels. Internal galvanic isolation paths protect sensitive backplane microprocessors from common-mode voltage noise and ground potential differences across field cables. Process loop integrity is maintained through real-time cyclic data frame validation, preventing packet corruption across 4-20 mA HART analog and digital field sub-networks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary functional role of the RB401 module within a Yokogawa DCS setup?\u003c\/p\u003e\n\u003cp\u003eA: The RB401 acts as a RIO bus interface module, facilitating deterministic serial data transfer between remote I\/O field nodes and the central control processor.\u003c\/p\u003e\n\u003cp\u003eQ: How does the RB401 handle high electrical noise present on long-distance field bus lines?\u003c\/p\u003e\n\u003cp\u003eA: Integrated galvanic channel-to-system isolation barriers decouple backplane logic circuits from ground loops and electromagnetic transients induced on long RIO bus cable runs.\u003c\/p\u003e\n\u003cp\u003eQ: Is the RB401 hot-swappable in an active control rack?\u003c\/p\u003e\n\u003cp\u003eA: Module replacement procedure requires powering down or placing the target RIO bus segment into a offline state per Yokogawa system maintenance guidelines to avoid communication interruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the RB401 module smoothly into the designated card slot of the Yokogawa rack frame until backplane connectors seat tightly.\u003c\/li\u003e\n\u003cli\u003eSecure top and bottom panel retaining screws to ensure proper grounding contact and resistance against mechanical vibration.\u003c\/li\u003e\n\u003cli\u003eConnect RIO bus communication cables using shielded twisted-pair conductors, ensuring single-point shield termination to cabinet ground.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate spacing between high-voltage power conduits and RIO communication lines to prevent signal interference.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52602499236120,"sku":"RB401","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/PW482-10S2.png?v=1788332997","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-rb401-rio-bus-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}