{"product_id":"yokogawa-s9841da-esb-bus-interface-units","title":"Yokogawa S9841DA ESB Bus Interface Units","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA S9841DA\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eS9841DA\u003c\/strong\u003e ESB Bus Connector Unit, operates as a dedicated hardware component for high-speed deterministic bus expansion and signal routing within Yokogawa CENTUM VP and CS 3000 DCS environments.\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\u003eS9841DA\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\u003eComponent Category\u003c\/td\u003e\n\u003ctd\u003eESB Bus Interface \/ Connector Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Series\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP, CENTUM CS 3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus (Extended Serial Backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContacts\u003c\/td\u003e\n\u003ctd\u003eGold-plated low-resistance contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eDual-unit deployment for redundant bus architectures\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\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Rack Interface Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel Isolation and High-Density Signal Protection\u003c\/h3\u003e\n\u003cp\u003eDesigned to operate within noisy industrial control environments, the S9841DA integrates physical signal shielding to prevent electromagnetic interference (EMI) across high-frequency Extended Serial Backplane (ESB) communication paths. Channel-to-channel isolation and low-impedance gold-plated interface points maintain signal fidelity between the primary Field Control Unit (FCU) and remote I\/O extension nests.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the YOKOGAWA S9841DA be replaced on a running redundant bus without interrupting process control?\u003c\/p\u003e\n\u003cp\u003eA: Yes. In dual-redundant ESB bus configurations, individual module replacement can be performed without interrupting signal communication on the active parallel bus line.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module prevent physical connection failure under cabinet vibration?\u003c\/p\u003e\n\u003cp\u003eA: The physical chassis incorporates mechanical guide pins and lock screws that maintain positive electrical contact and lock the gold-plated connector pins into the backplane frame.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAlign the guide pins on the S9841DA unit with the dedicated ESB bus expansion slot on the FCU or node nest backplane.\u003c\/li\u003e\n\u003cli\u003ePush the connector unit straight into the slot to prevent pin bending, ensuring full seat engagement with the backplane connectors.\u003c\/li\u003e\n\u003cli\u003eTighten the retaining screws to the specified torque setting to verify ground integrity and mechanical retention against vibration.\u003c\/li\u003e\n\u003cli\u003eEnsure all external ESB bus cables maintain proper bend radiuses and remain isolated from high-voltage AC cabling ducts.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52702949835032,"sku":"S9841DA","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/ANB10D-4213_Cocoai_457e1934-e260-4f71-942e-f51681522a72.jpg?v=1789722535","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-s9841da-esb-bus-interface-units","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}