{"product_id":"esb-bus-coupler-module-yokogawa-ec401-51-s2","title":"ESB Bus Coupler Module YOKOGAWA EC401-51 S2","description":"\u003cp\u003eConfigured for high-speed data transmission in CENTUM distributed control systems, the \u003cstrong\u003eYOKOGAWA EC401-51 S2\u003c\/strong\u003e (\u003cstrong\u003eEC401\u003c\/strong\u003e ESB Bus Coupler Module) provides direct physical\/electrical execution of the Extended-mode Synchronous Bus (ESB) communication interface.\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\u003eEC401-51 S2\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e22 mm x 124 mm x 126 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eESB Bus (Extended Synchronous Bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Loop Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe EC401-51 S2 module facilitates system scalability by linking field control units (FCU) to remote I\/O nodes via the ESB bus. The architecture supports deterministic data polling, ensuring that I\/O scan intervals remain synchronized across the distributed network. Each module incorporates channel-to-channel isolation on the bus interface to maintain signal integrity and prevent noise propagation between the control station backplane and the remote node interface cables during high-frequency communication cycles.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Is this module capable of supporting hot-swapping during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: No, the EC401-51 S2 is not designed for hot-swapping. The control station power must be isolated, and the bus communication stopped, before removing or installing the module to prevent electrical damage to the ESB bus backplane pins.\u003c\/p\u003e\n\u003cp\u003eQ: What are the cable distance limitations for the ESB bus interface?\u003c\/p\u003e\n\u003cp\u003eA: The ESB bus length is governed by the total latency constraints of the distributed control system. Refer to the specific system cabinet wiring guide to ensure total cable length and termination resistance are within the manufacturer’s specified parameters for stable communication.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Insert the module into the designated ESB bus master or slave slot on the base unit. Ensure the mechanical locking tabs are fully engaged to guarantee proper contact pressure on the backplane connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBus Cabling:\u003c\/strong\u003e Connect the ESB bus cables using the manufacturer-provided connectors. Tighten the connector screws to ensure a secure, vibration-resistant electrical interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding:\u003c\/strong\u003e Use shielded ESB bus cabling and terminate the shield drain at the designated cabinet grounding point. Proper shielding is required to protect the synchronous data signals from electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Verification:\u003c\/strong\u003e Observe the front-panel status indicators after power-on. A stable indicator confirms that the module has successfully synchronized with the bus master and is ready for data exchange.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":50361015140604,"sku":"EC401-51 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/EC401-51_S22.jpg?v=1784510884","url":"https:\/\/www.electronicplc.com\/products\/esb-bus-coupler-module-yokogawa-ec401-51-s2","provider":"Electronic PLC","version":"1.0","type":"link"}