{"product_id":"esb-bus-interface-master-module-yokogawa-sb401-11-s1","title":"ESB Bus Interface Master Module | Yokogawa SB401-11 S1","description":"\u003ch2\u003eYokogawa SB401-11 S1 ESB Bus Interface Master Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SB401-11 S1\u003c\/strong\u003e also cataloged as the \u003cstrong\u003eSB401\u003c\/strong\u003e ESB Bus Interface Master Module, operates as a dedicated hardware component for deterministic ESB backplane communication within CENTUM CS \/ CENTUM VP systems. It executes synchronized data exchange across ESB-connected nodes and manages inter-module bus arbitration at controller level.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSB401: Base ESB bus interface module series identifier\u003c\/li\u003e\n\u003cli\u003e-11: Hardware \/ specification revision code within SB401 family\u003c\/li\u003e\n\u003cli\u003eS1: Style designation indicating mechanical and design iteration level\u003cbr\u003eNo functional expansion beyond ESB master interface role is defined by suffix alone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa SB401-11 S1\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\u003eApprox. 0.2 kg to 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 32.8 x 130 x 142.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003eNot specified (system dependent CENTUM rack environment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.5 A (via backplane supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Type\u003c\/td\u003e\n\u003ctd\u003eESB (Enhanced Serial Bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 128 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Nodes\u003c\/td\u003e\n\u003ctd\u003eUp to 9 ESB-connected units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual ESB bus configuration supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 10 m standard; extended via optical repeater modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa ESB Backplane Communication Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe SB401-11 S1 operates within a Yokogawa DCS backplane architecture where ESB frames are time-synchronized across controller and node interfaces. Channel-to-channel electrical isolation is implemented at module boundary level to reduce ground potential variation between I\/O racks and controller chassis. ESB arbitration logic maintains deterministic transfer sequencing under multi-node polling conditions, preventing frame collision during simultaneous module access cycles.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does SB401-11 S1 support hot-swap operation in CENTUM racks?\u003c\/strong\u003e\u003cbr\u003eA: Hot-swap capability depends on system rack configuration. ESB backplane signals require controlled insertion procedures to prevent bus disturbance during live operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the impact of removing one ESB node on bus timing?\u003c\/strong\u003e\u003cbr\u003eA: Node removal forces ESB re-synchronization. Temporary frame alignment adjustment occurs across remaining nodes to maintain deterministic scheduling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can SB401-11 S1 operate in redundant ESB topology?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The module supports dual ESB bus paths, allowing automatic path switching under communication line degradation conditions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure system power isolation before inserting or removing the SB401-11 S1 module from the CENTUM rack backplane. Maintain correct alignment with ESB connector rails to avoid bent pin conditions. Shielded backplane grounding must be verified at cabinet level to maintain signal integrity under high-speed ESB operation. Cable routing for ESB interconnects should follow separated trunking paths to minimize electromagnetic coupling with power conductors.\u003c\/p\u003e\n\u003cp\u003eAvoid mechanical stress on the module edge connector during installation, and confirm full seating before re-energizing the system. Redundant ESB configurations require matched cabling lengths to maintain timing symmetry between primary and secondary communication paths.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44152857821272,"sku":"SB401-11 S1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SB401-11S1-2.jpg?v=1780021298","url":"https:\/\/www.industriaxplc.com\/products\/esb-bus-interface-master-module-yokogawa-sb401-11-s1","provider":"IndustriaX Limited","version":"1.0","type":"link"}