{"product_id":"yokogawa-sb302-esb-system-bus-interface-module","title":"Yokogawa SB302 ESB System Bus Interface Module","description":"\u003carticle\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSB302\u003c\/strong\u003e from Yokogawa is a dedicated ESB system bus interface module engineered for high-speed internal communication within CENTUM VP and CENTUM CS 3000 distributed control systems.\u003cbr\u003eIt functions as the core link between control processors and I\/O subsystems, ensuring deterministic data transfer and system-wide synchronization in large-scale DCS architectures.\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous industrial operation, this module supports redundant bus configurations and is built to withstand electrical noise, mechanical vibration, and long-term thermal stress commonly found in process plants.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Functions and Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSB302\u003c\/strong\u003e provides a stable and deterministic communication path between system components. It plays a critical role in maintaining scan cycle integrity, signal consistency, and fault-tolerant operation across the control network.\u003c\/p\u003e\n\u003cp\u003eKey functional characteristics include:\u003c\/p\u003e\n\u003cp\u003eHigh-speed ESB communication between CPU nodes and remote I\/O\u003cbr\u003eDeterministic data transfer with low latency\u003cbr\u003eSupport for redundant system bus configurations\u003cbr\u003eAutomatic error detection and communication recovery\u003cbr\u003eElectrical isolation to reduce noise propagation across the backplane\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis module is fully compatible with the following Yokogawa platforms:\u003c\/p\u003e\n\u003cp\u003eCENTUM VP\u003cbr\u003eCENTUM CS 3000\u003c\/p\u003e\n\u003cp\u003eIt is intended for use within standard Yokogawa control racks and interfaces directly with supported CPU and I\/O modules through the ESB backplane.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eESB System Bus Interface Module\u003cbr\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYokogawa Electric Corporation\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSB302\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eForm Factor:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlug-in card, rack-mounted\u003cbr\u003e\u003cstrong\u003eBus Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eESB (Extended System Bus)\u003cbr\u003e\u003cstrong\u003eRedundancy Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes\u003cbr\u003e\u003cstrong\u003eEMI Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndustrial-grade shielding\u003cbr\u003e\u003cstrong\u003eVibration Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompliant with industrial control standards\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 160 × 120 × 25 mm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 kg\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIndustrial Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSB302 (SB302-S1)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis deployed in control systems where uninterrupted communication is mandatory, including:\u003c\/p\u003e\n\u003cp\u003eOil and gas production and refining facilities\u003cbr\u003ePetrochemical and chemical processing plants\u003cbr\u003eThermal and combined-cycle power stations\u003cbr\u003eWater and wastewater treatment systems\u003cbr\u003eLarge-scale continuous process industries\u003c\/p\u003e\n\u003cp\u003eIts redundancy capability makes it especially suitable for plants with high availability and safety requirements.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eModel Comparison Reference\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWithin the CENTUM system architecture, the SB302 serves a different role than CPU or I\/O modules. While control processors execute logic and I\/O modules handle field signals, the SB302 ensures the integrity and speed of internal system communication. Without it, coordinated operation across the DCS is not possible.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the SB302 hot-swappable?\u003c\/strong\u003e\u003cbr\u003eA: No. Installation or replacement must be performed with system power removed, following Yokogawa maintenance procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can it be used in non-redundant systems?\u003c\/strong\u003e\u003cbr\u003eA: Yes. While redundancy is supported, the module operates correctly in both single and dual bus configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this module require firmware configuration?\u003c\/strong\u003e\u003cbr\u003eA: No user firmware configuration is required. Recognition and configuration are handled by the CENTUM system environment.\u003c\/p\u003e\n\u003c\/article\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":42877348806746,"sku":"SB302","price":264.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/SB302.jpg?v=1770190851","url":"https:\/\/www.plcmasters.com\/de\/products\/yokogawa-sb302-esb-system-bus-interface-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}