{"product_id":"sb401-50-s1-yokogawa-esb-bus-interface-module-new-original-stock","title":"SB401-50 S1 Yokogawa ESB Bus Interface Module New \u0026 Original Stock","description":"\u003cp\u003ehe \u003cstrong\u003eYokogawa SB401-50 S1\u003c\/strong\u003e (\u003cstrong\u003eSB401-50 S1\u003c\/strong\u003e ESB Bus Interface Slave Module) operates as a critical hardware component for managing communication between field control stations and remote slave nodes within distributed control systems. Despite the power supply designation in some descriptions, this module serves primarily as a bus interface slave utilized to execute deterministic data synchronization and command routing across the Extended Standard Bus (ESB) architecture in high-performance Yokogawa CENTUM platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe SB401-50 S1 model indicates a specialized hardware revision. The \"S1\" suffix denotes an iteration featuring updated backplane communication logic and enhanced signal stability compared to the standard SB401-50. This revision is typically required for newer CENTUM VP system controllers that demand higher bus throughput and refined error-detection capabilities.\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\u003eSB401-50 S1\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\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.1 cm x 20.3 cm x 20.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e7 W (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Slave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control Features\u003c\/h3\u003e\n\u003cp\u003eThe SB401-50 S1 integrates into the DCS architecture to provide reliable, deterministic communication between the control processor and remote I\/O subsystems. It utilizes galvanic channel-to-channel isolation to decouple the ESB bus from field-side electrical noise, preventing ground potential differences from affecting the integrity of the data stream. The module supports robust bus timing synchronization, ensuring that high-speed I\/O updates are captured without latency, thus maintaining accurate loop control across the distributed network.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the SB401-50 S1 backwards compatible with existing SB401-50 installations?\u003c\/p\u003e\n\u003cp\u003eA: Generally, yes, but compatibility is dependent on the specific CENTUM system version and controller firmware; verify the hardware support matrix before performing a direct replacement.\u003c\/p\u003e\n\u003cp\u003eQ: Does this module require specialized termination?\u003c\/p\u003e\n\u003cp\u003eA: Yes, proper ESB bus termination is required at the end of the bus segment to maintain signal integrity and prevent data corruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the module onto the dedicated DIN-rail or rack-mount backplane, ensuring a secure mechanical and electrical ground connection to the cabinet chassis.\u003c\/li\u003e\n\u003cli\u003eVerify that all ESB bus cabling is routed through shielded conduits to prevent inductive coupling from adjacent high-power equipment or VFDs.\u003c\/li\u003e\n\u003cli\u003eTighten the module's front-panel retaining screws to ensure proper bonding to the cabinet, which is essential for electromagnetic compatibility.\u003c\/li\u003e\n\u003cli\u003eInspect the backplane connectors for any signs of oxidation, debris, or pin misalignment before seating the module to avoid intermittent communication errors.\u003c\/li\u003e\n\u003cli\u003eAfter installation, confirm the module’s diagnostic LED states to ensure a successful handshake with the ESB bus master controller.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49155768090876,"sku":"SB401-50 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/SB401-50_S1.jpg?v=1780450856","url":"https:\/\/www.electronicplc.com\/ar\/products\/sb401-50-s1-yokogawa-esb-bus-interface-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}