{"product_id":"yokogawa-ec402-51-esb-bus-coupler-module","title":"Yokogawa EC402-51 ESB Bus Coupler Module","description":"\u003ch2\u003eYokogawa EC402-51 ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa EC402-51\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eEC402\u003c\/strong\u003e ESB Bus Coupler Module, operates as a dedicated hardware component for high-speed ESB bus master interfacing within CENTUM VP and CS 3000 distributed control systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC402:\u003c\/strong\u003e ESB Bus Coupler Module for N-IO \/ FIO, 2-Port type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-5:\u003c\/strong\u003e Standard type with no explosion protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1:\u003c\/strong\u003e ISA Standard G3 conformal coating for corrosion and chemical resistance\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 EC402-51\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. 0.24 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32.8 mm × 130.0 mm × 129.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e-10 degC to +60 degC\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eESB Bus Master Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP \/ CS 3000 (AFV30, AFV40, A2FV50, A2FV70 FCUs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmissionSpeed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectableUnits\u003c\/td\u003e\n\u003ctd\u003eUpper: Max. 9, Lower: Max. 9, Total Max: 13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmissionDistance\u003c\/td\u003e\n\u003ctd\u003eUpper: Max. 10 m, Lower: Max. 10 m, Total Max: 20 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDataBufferSize\u003c\/td\u003e\n\u003ctd\u003e128 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Bus Communication and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe EC402-51 implements deterministic ESB bus communication with isolated upper and lower ports, minimizing cross-channel interference. Dual-redundant deployment is supported by pairing two modules in adjacent FCU slots to maintain continuous I\/O data flow during maintenance or module failure. The module’s data buffering ensures low-latency response times (~10 ms) for remote ESB node interactions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the EC402-51 be hot-swapped while the FCU is online?\u003c\/strong\u003e\u003cbr\u003eA: No. Replacement requires controlled FCU shutdown or redundant module support to avoid data loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum number of ESB nodes supported per EC402-51 module?\u003c\/strong\u003e\u003cbr\u003eA: Up to 9 nodes on the upper port and 9 nodes on the lower port, with a system total of 13 nodes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How is the module protected against harsh environmental conditions?\u003c\/strong\u003e\u003cbr\u003eA: The EC402-51 with suffix “-1” includes ISA Standard G3 conformal coating, providing resistance to corrosive chemical environments.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount module directly into designated FCU slot with proper slot alignment\u003c\/li\u003e\n\u003cli\u003eMaintain grounding continuity to FCU backplane and chassis earth\u003c\/li\u003e\n\u003cli\u003eUse standard Yokogawa YCB301 ESB bus cables, observing maximum distances of 10 m per port\u003c\/li\u003e\n\u003cli\u003eKeep bus cabling physically separated from high-voltage lines to prevent EMI\u003c\/li\u003e\n\u003cli\u003eVerify dual-redundant modules are installed in correct slot pairs for continuous bus availability\u003c\/li\u003e\n\u003cli\u003eEnsure airflow clearance around adjacent modules to prevent thermal accumulation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44165828509784,"sku":"EC402-51","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/EC402-51-3.jpg?v=1780379594","url":"https:\/\/www.industriaxplc.com\/products\/yokogawa-ec402-51-esb-bus-coupler-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}