{"product_id":"yokogawa-sb401-50-esb-bus-interface-slave-module","title":"Yokogawa SB401-50 ESB Bus Interface Slave Module","description":"\u003cp\u003eThe Yokogawa SB401-50 is an ESB Bus Interface Slave Module designed to provide a slave-side interface for communication over the ESB bus in a Yokogawa control system. The supplied ordering information identifies it as the standard type without explosion protection, with the basic configuration suffix. Its exact configuration should be checked against the complete model number when selecting a replacement.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe SB401 is identified as an ESB Bus Interface Slave Module. The complete ordering code SB401-50 consists of the base model SB401 and two suffix elements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-5: Standard type without explosion protection.\u003c\/li\u003e\n\u003cli\u003e0: Basic type.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBoth suffix elements should be retained when identifying or ordering this module.\u003c\/p\u003e\n\u003ch3\u003eFunction in the FIO Node Unit\u003c\/h3\u003e\n\u003cp\u003eThe SB401 provides the ESB bus interface on the node-unit side. It enables communication between the ESB Bus Node Unit and the Field Control Unit through the corresponding ESB Bus Coupler Module.\u003c\/p\u003e\n\u003cp\u003eThe module is part of the FIO node configuration, where bus interface modules, power supply modules and I\/O modules are installed in the node unit.\u003c\/p\u003e\n\u003ch3\u003eRedundant Configuration\u003c\/h3\u003e\n\u003cp\u003eFor a dual-redundant ESB bus configuration, two SB401 modules are installed in the node unit. This arrangement provides two bus interface paths rather than relying on a single interface module. The required configuration depends on the node-unit type and system architecture.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSB401-50\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Interface Slave Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eSB401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuffix -5\u003c\/td\u003e\n\u003ctd\u003eStandard type, no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuffix 0\u003c\/td\u003e\n\u003ctd\u003eBasic type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eESB Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSingle or dual-redundant, depending on system configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the function of the Yokogawa SB401-50?\u003c\/p\u003e\n\u003cp\u003eA: It provides the ESB bus interface for an FIO node unit, enabling communication with the Field Control Unit through the ESB Bus Coupler Module.\u003c\/p\u003e\n\u003cp\u003eQ: Can the SB401-50 be used in a redundant configuration?\u003c\/p\u003e\n\u003cp\u003eA: Yes. A dual-redundant ESB bus configuration uses two SB401 modules in the node unit. The corresponding node-unit hardware must support this arrangement.\u003c\/p\u003e\n\u003cp\u003eQ: Does SB401-50 have explosion protection?\u003c\/p\u003e\n\u003cp\u003eA: No. The -5 suffix identifies the standard type without explosion protection. It should not be confused with the -E explosion-protection ordering option. \u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":69295133229298,"sku":"SB401-50","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/SB401-50.jpg?v=1794450792","url":"https:\/\/www.petrospare.com\/products\/yokogawa-sb401-50-esb-bus-interface-slave-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}