{"product_id":"sec401-51-yokogawa-prosafe-rs-esb-bus-coupler-module","title":"SEC401-51 Yokogawa ProSafe-RS ESB Bus Coupler Module","description":"\u003ch2\u003eYokogawa SEC401-51 ProSafe-RS ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed deterministic bus communications in ProSafe-RS safety instrumented systems, the \u003cstrong\u003eYokogawa SEC401-51\u003c\/strong\u003e (\u003cstrong\u003eSEC401\u003c\/strong\u003e ESB Bus Coupler Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption \/ Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSEC401\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eESB Bus Coupler Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eStandard type with no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnvironmental Coating\u003c\/td\u003e\n\u003ctd\u003eWith ISA Standard G3 conformal coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eSEC401-51\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\u003e0.24 kg (Net), 1.5 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard rack-mounted module enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A (Current Consumption)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Coupler Module \/ Safety Node Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps (I\/O module data transmission)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003e10 m maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectable Node Units\u003c\/td\u003e\n\u003ctd\u003e9 units maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3 conformal coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation via ESB bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 (IEC 61508 Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe SEC401-51 coupler module connects safety node units over the ESB bus, transferring high-speed process data at 128 Mbps across 10 m spans. The card preserves channel-to-channel isolation to isolate control logic from field-induced electrical transients. Dedicated circuitry integrates seamlessly with 4-20 mA HART loops and FOUNDATION Fieldbus field instruments, maintaining deterministic cycle times and SIL3 safety loop execution under continuous operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many safety node units can a single SEC401-51 bus coupler support?\u003c\/p\u003e\n\u003cp\u003eA: The SEC401-51 module supports inter-node communication for up to 9 connected safety node units maximum over the ESB bus interface.\u003c\/p\u003e\n\u003cp\u003eQ: What environmental protection standard applies to the SEC401-51 module?\u003c\/p\u003e\n\u003cp\u003eA: The unit features factory-applied ISA Standard G3 conformal coating to protect internal electronic circuits against corrosive industrial atmospheres.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInsert the SEC401-51 vertically into the designated slot of the main safety node unit chassis, pushing firmly until backplane bus pins seat fully. Fasten the top and bottom retaining screws to establish chassis ground continuity. Verify that total ESB bus cable runs do not exceed the maximum allowable distance of 10 m. Route communication cabling through dedicated low-voltage instrument ducts separate from AC power conduits to maintain signal clarity.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43838394433626,"sku":"SEC401-51","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/803..jpg?v=1786590022","url":"https:\/\/www.spareoil.com\/products\/sec401-51-yokogawa-prosafe-rs-esb-bus-coupler-module","provider":"SpareOil Automation","version":"1.0","type":"link"}