{"product_id":"rb401-s4-yokogawa-rio-bus-module-new-original-stock","title":"RB401\/S4 Yokogawa RIO Bus Module | New \u0026 Original Stock","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa RB401\/S4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eRB401\/S4\u003c\/strong\u003e RIO Bus Module, operates as a dedicated hardware component for field device connectivity within distributed control system (DCS) architectures. This module provides direct electrical execution of data transmission between Yokogawa field devices and the host controller, facilitating deterministic communication over the RIO bus protocol.\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\/S4\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\u003e0.7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5 cm x 13 cm x 15 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12 W (Typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eRIO Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Network Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe RB401\/S4 module is engineered to manage traffic on the RIO bus, ensuring stable data exchange between the host controller and remote field units. Its internal architecture incorporates robust signal conditioning to support high-integrity communication and minimize transmission latency. By optimizing bus arbitration and message scheduling, the RB401\/S4 ensures that time-critical process control loops maintain synchronization across the distributed network. The module is designed to provide seamless integration into existing control architecture, supporting modular expansion of field device I\/O capabilities.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the RB401\/S4 support hot-swapping during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: No, the module does not support hot-swapping. The controller station must be powered down or placed in a defined maintenance mode to prevent bus communication errors or electrical damage to the module interface during installation or removal.\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary function of the RB401\/S4 in a distributed system?\u003c\/p\u003e\n\u003cp\u003eA: The RB401\/S4 acts as a communication bridge, managing data packets between the centralized host controller and peripheral field devices, ensuring real-time process state updates.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the host controller is de-energized before inserting the RB401\/S4 module into the designated RIO interface slot.\u003c\/li\u003e\n\u003cli\u003eEnsure correct alignment of the module in the chassis; forced insertion can damage backplane pins and signal traces.\u003c\/li\u003e\n\u003cli\u003eSecure the front-panel mounting screws to ensure the module is grounded to the chassis, which is essential for maintaining electromagnetic compatibility (EMC).\u003c\/li\u003e\n\u003cli\u003eShielded twisted-pair cables must be utilized for the RIO bus connection to prevent data packet corruption caused by electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure that the bus segment is properly terminated at the node end in accordance with RIO bus impedance requirements to prevent signal reflections and packet loss.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49161564422396,"sku":"RB401 S4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/RB401.jpg?v=1780538180","url":"https:\/\/www.electronicplc.com\/products\/rb401-s4-yokogawa-rio-bus-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}