{"product_id":"yokogawa-rb401-s4-rio-bus-interface-master-card-centum-cs-vp","title":"Yokogawa RB401-S4 RIO Bus Interface Master Card CENTUM CS\/VP","description":"\u003ch2\u003eYokogawa RB401-S4 RIO Bus Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa RB401-S4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eRB401\u003c\/strong\u003e RIO Bus Interface Master Card, operates as a dedicated hardware component for high-speed data exchange between remote I\/O subsystems and CENTUM CS\/VP control platforms.\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\u003e0.23 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 12.4 cm x 12.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 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\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Type\u003c\/td\u003e\n\u003ctd\u003eRIO Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Transfer Speed\u003c\/td\u003e\n\u003ctd\u003e10 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eDB-37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Devices per Segment\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe RB401-S4 manages communication traffic through a robust 10 Mbps RIO bus protocol, ensuring deterministic data throughput within distributed control architectures. The module implements channel-to-channel isolation protocols to mitigate electromagnetic interference, preserving signal integrity across the bus segment. Field communication utilizes a DB-37 physical interface, necessitating high-quality shielded cabling to maintain rated transmission latencies. Effective operation in the DCS environment depends on precise 24 V DC power regulation, as fluctuations beyond nominal ranges affect the stability of the RIO bus master logic and synchronization with connected slave devices.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the RB401-S4 require specific cable shielding for the 10 Mbps bus?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Given the high-speed nature of the RIO bus communication, utilize industrial-grade shielded twisted-pair cabling. The shield must be terminated at the cabinet ground busbar to minimize noise susceptibility and prevent data packet collisions.\u003c\/p\u003e\n\u003cp\u003eQ: How should redundant bus configurations be managed during module replacement?\u003c\/p\u003e\n\u003cp\u003eA: The RB401-S4 supports integration into redundant RIO bus loops. During replacement, ensure the primary-secondary synchronization is active. Replace the module while the system is in a controlled state, if possible, to prevent transient signal loss across the remaining active bus segment.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Mounting:\u003c\/strong\u003e Install the module in a location that ensures ambient temperatures remain within the -20 deg C to +60 deg C range. While the enclosure provides ingress protection, avoid locations with direct exposure to high-pressure washdowns or aggressive chemical vapors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Wiring:\u003c\/strong\u003e Connect field wiring to the DB-37 interface. Ensure that all conductors are properly ferruled to prevent strand breakage under thermal expansion or vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Protocols:\u003c\/strong\u003e Bond the module chassis directly to the control cabinet ground plane using a low-impedance braided copper strap. This connection is necessary for the internal surge suppression circuits to function correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Sequencing:\u003c\/strong\u003e Verify the 24 V DC source output with a calibrated multimeter before final connection. Polarity must be strictly observed to protect the internal bus interface logic from reverse bias damage.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43655283277914,"sku":"RB401 S4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/530.1_22820820-8aec-4a0c-b166-8ff9ba978024.jpg?v=1783995081","url":"https:\/\/www.spareoil.com\/ar\/products\/yokogawa-rb401-s4-rio-bus-interface-master-card-centum-cs-vp","provider":"SpareOil Automation","version":"1.0","type":"link"}