{"product_id":"sec401-11-s2-yokogawa-sec401-prosafe-rs-bus-coupler-modules","title":"SEC401-11 S2 Yokogawa SEC401 ProSafe-RS Bus Coupler Modules","description":"\u003ch2\u003eYokogawa SEC401-11 S2 ESB Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SEC401-11 S2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSEC401\u003c\/strong\u003e ESB Bus Coupler Module, operates as a dedicated hardware component for linking Field Control Units with Safety Node Units within ProSafe-RS control networks.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe suffix alphanumeric structure defines system hardware options, transmission configurations, and revision styles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEC401\u003c\/strong\u003e: Base model code designating the ESB Bus Coupler Module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-11\u003c\/strong\u003e: Hardware option suffix designating standard ESB bus coupler interface specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS2\u003c\/strong\u003e: Hardware style revision level specifying enhanced compatibility.\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\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\u003eSEC401-11 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\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.24 kg (shipping weight 1.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 x 129.5 x 32.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A at 24 VDC (via backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eESB Bus Master Interface \/ Coupler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eProprietary ESB bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 10 m per bus cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual-redundant channels with automatic failover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Position\u003c\/td\u003e\n\u003ctd\u003e7th and 8th slots of safety control unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eBackplane slot mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel Isolation and Loop Protocol\u003c\/h3\u003e\n\u003cp\u003eThe module provides full channel-to-system electrical isolation across its dual-redundant ESB bus interface channels, preventing high-voltage transients and noise interference from propagating to the central processor backplane. The physical interface transmits deterministic 128 Mbps safety data streams over 4-20 mA HART loop protocol environments and field I\/O racks, processing real-time system diagnostics with continuous automatic failover. Onboard diagnostic routines continuously monitor safety loop health and signal integrity, supporting SIL 3 safety state maintenance in IEC 61508 compliant architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum permitted bus cable length for direct ESB module-to-node interconnections? A: The standard transmission distance allows up to 10 m per ESB bus cable, requiring star topology connections for extended network nodes.\u003c\/p\u003e\n\u003cp\u003eQ: Which dedicated slots must the SEC401-11 S2 occupy within the safety control unit rack? A: The module is designed specifically for installation in the 7th and 8th slots of the ProSafe-RS safety control unit.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support hot-swappable replacement during active control operations? A: Yes, the hot-swappable design allows module replacement without interrupting power or communication on adjacent backplane slots.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eAlign the module with the card guides in slot 7 or 8 of the safety control unit rack and push firmly until the backplane connector locks in place. Secure the module retaining screws to establish chassis grounding and mechanical rigidity against cabinet vibration. Route ESB bus cables separately from AC power supply lines, keeping cable bend radii within specified tolerances and limiting run lengths to under 10 m per segment. Ground all cable shielding at a single point on the main cabinet ground bar. Ensure all conduit fittings maintain a minimum engagement of 5 full NPT threads where applicable.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43816550105178,"sku":"SEC401-11 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/168.1_c3aac05d-0b7a-4986-bea5-e6465d9de246.jpg?v=1786329241","url":"https:\/\/www.spareoil.com\/products\/sec401-11-s2-yokogawa-sec401-prosafe-rs-bus-coupler-modules","provider":"SpareOil Automation","version":"1.0","type":"link"}