{"product_id":"ec401-10-yokogawa-esb-bus-coupler-module","title":"EC401-10 Yokogawa ESB Bus Coupler Module","description":"\u003ch2\u003eYokogawa EC401 ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa EC401\u003c\/strong\u003e，also cataloged as the \u003cstrong\u003eEC401\u003c\/strong\u003e Bus Coupler Module, operates as a dedicated hardware component for ESB bus communication linking Field Control Units and Node Units within ESB bus architecture. It provides direct electrical and data execution for I\/O module data exchange at high-speed backplane-to-bus interfacing.\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\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 EC401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.24 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Function\u003c\/td\u003e\n\u003ctd\u003eESB bus interface function\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps (I\/O data transmission)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eMax. 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Connectable Units\u003c\/td\u003e\n\u003ctd\u003eUp to 9 units (ANB10S\/ANB10D\/ANT401\/ANT411\/ANT421)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Requirement\u003c\/td\u003e\n\u003ctd\u003eSlot 7 (non-redundant), Slot 7+8 (dual-redundant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eESB Bus Architecture and DCS Communication Behavior\u003c\/h3\u003e\n\u003cp\u003eWithin Yokogawa distributed control environments, ESB bus coupling is aligned with deterministic field data exchange and channel-level synchronization typical of DCS backplane systems. The EC401 module operates as a physical bus interface element for high-speed module aggregation, supporting structured I\/O segmentation and channel-to-node mapping. ESB bus topology maintains fixed latency characteristics over short-distance interconnects, ensuring stable module synchronization under multi-rack configurations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the EC401 be hot-swapped during ESB bus operation?\u003c\/strong\u003e\u003cbr\u003eA: Hot-swap capability depends on system configuration and Field Control Unit design. ESB bus integrity must be maintained to avoid backplane communication interruption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the impact of redundant installation on bus behavior?\u003c\/strong\u003e\u003cbr\u003eA: Dual-redundant configuration uses Slot 7 and Slot 8 installation, providing parallel ESB paths with failover switching logic managed at system level.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the EC401 impose limitations on node expansion?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Maximum connectable node count is limited to 9 units across supported ANB and ANT series modules due to bus bandwidth and addressing constraints.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall EC401 in Slot 7 for non-redundant ESB bus configuration\u003c\/li\u003e\n\u003cli\u003eFor redundancy, install a second unit in Slot 8 and ensure paired configuration alignment\u003c\/li\u003e\n\u003cli\u003eUse covered dummy module for unused slot in non-redundant setups\u003c\/li\u003e\n\u003cli\u003eMaintain ESB bus cable length within 10 m maximum transmission distance\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of Field Control Unit chassis to reduce signal reference drift\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with CP471 processor module (Style code S3 or later required)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44147155599448,"sku":"EC401-10","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/EC401-10.jpg?v=1779853170","url":"https:\/\/www.industriaxplc.com\/products\/ec401-10-yokogawa-esb-bus-coupler-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}