{"product_id":"yokogawa-sec401-11-s1-esb-bus-coupler-module","title":"Yokogawa SEC401-11 S1 ESB Bus Coupler Module","description":"\u003ch2\u003eYokogawa SEC401-11 S1 ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SEC401-11 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSEC401\u003c\/strong\u003e ESB Bus Coupler Module, operates as a dedicated hardware component for ESB bus master communication within ProSafe-RS Safety Instrumented Systems. It provides a direct interface between Safety Control Units and downstream Safety Node Units for deterministic real-time data transmission.\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\u003eSEC401-11 S1\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard rack-mount module size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e-20 degC to +70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorageTemp\u003c\/td\u003e\n\u003ctd\u003e-30 degC to +80 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelativeHumidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimaryFunction\u003c\/td\u003e\n\u003ctd\u003eESB Bus Master Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystemCompatibility\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS Safety Systems\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\u003eMaxTransmissionDistance\u003c\/td\u003e\n\u003ctd\u003e10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaxConnectableUnits\u003c\/td\u003e\n\u003ctd\u003e9 units (SNB10D + SNT4□□)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoolingMethod\u003c\/td\u003e\n\u003ctd\u003eNatural air convection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafetyCompliance\u003c\/td\u003e\n\u003ctd\u003eSIL3 certified, IEC 61131-2, EN 50155\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHazardousArea\u003c\/td\u003e\n\u003ctd\u003eClass I, Division 2, Groups A-D, T4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eProcess ControlI ntegration Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SEC401-11 S1 provides channel-to-channel isolation to prevent interference between high-speed ESB signals. It supports real-time deterministic communication suitable for emergency shutdown (ESD) loops. The module accommodates 4-20 mA HART loop protocol integration through compatible ProSafe-RS modules and includes cold-junction compensation (CJC) for precise analog signal processing under varying temperature conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQ: What is the hot-swap capability of the SEC401-11 S1?\u003cbr\u003eA: The module supports online replacement when installed in a dual-redundant pair, allowing one card to assume full bus master functionality without interrupting ongoing control loops.\u003c\/p\u003e\n\u003cp\u003eQ: How many downstream nodes can be connected to a single SEC401-11 S1?\u003cbr\u003eA: Up to 9 units, including a combination of SNB10D and SNT4□□ nodes, depending on network topology and slot availability.\u003c\/p\u003e\n\u003cp\u003eQ: Does the SEC401-11 S1 require active cooling?\u003cbr\u003eA: No. It relies on natural air convection and does not require additional cooling under standard installation conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eField Installation Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eMount the module into the designated 7th and 8th slots of the Safety Control Unit (SCU).\u003c\/li\u003e\n\u003cli\u003eEnsure ESB bus cables are correctly shielded and routed to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eVerify grounding of the SCU chassis and bus shields per IEC 61131-2 standards.\u003c\/li\u003e\n\u003cli\u003eInstall in pairs for redundancy if online hot-swap is required.\u003c\/li\u003e\n\u003cli\u003eMaintain maximum cable lengths within 10 meters for all ESB connections.\u003c\/li\u003e\n\u003cli\u003eAvoid installation near high-current or high-frequency devices that could induce crosstalk.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44165687574616,"sku":"SCE401-11 S1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SCE401-11S1-2.jpg?v=1780365061","url":"https:\/\/www.industriaxplc.com\/ar\/products\/yokogawa-sec401-11-s1-esb-bus-coupler-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}