{"product_id":"nfsb100-s50-yokogawa-prosafe-rs-safety-bus-coupler-module","title":"NFSB100-S50 | Yokogawa | ProSafe-RS Safety Bus Coupler Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa NFSB100-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary Safety Bus Coupler Module for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProSafe-RS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafety Instrumented System (SIS). This critical component establishes the communication bridge between the Safety Control Station (SCS) and remote Safety Node Units. By utilizing Yokogawa's high-speed safety bus protocol, the NFSB100-S50 ensures deterministic data transport for emergency shutdown (ESD) and fire and gas (F\u0026amp;G) systems, maintaining the rigorous timing required for SIL3 applications.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown\u003c\/h3\u003e\n\u003cp\u003eYokogawa specifies the functional profile of the NFSB100 through specific suffix and option codes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNFSB100\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSafety Bus Coupler Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e-S\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eType\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Type\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e5\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStyle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStyle Code 5 (Current hardware revision)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAlways 0\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBasic Configuration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe NFSB100-S50 maintains peak integrity for safety-critical communication paths:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYokogawa\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Platform:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProSafe-RS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafety Bus Interface \/ Coupler\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBus Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eESB Bus \/ Optical ESB Bus (via repeater)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStyle Code:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e50\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOccupies dedicated coupler slots in the Safety Control Unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Speed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e128 Mbps (Safety-optimized)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSIL3 Certified Reliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe NFSB100-S50 meets the strict hardware integrity requirements for Safety Integrity Level 3 (SIL3). It features extensive self-diagnostics that monitor the health of the safety bus in real-time, triggering a safe state if any communication discrepancy occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Logic Execution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module eliminates \"network jitter\" by providing a dedicated, high-speed path for safety signals. It ensures that the processor receives field data from remote safety nodes within fixed scan times, which is essential for high-speed trip sequences.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundant Architecture Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor maximum plant availability, the NFSB100-S50 operates in redundant pairs. If one coupler or bus cable fails, the system switches to the secondary unit without interrupting the safety logic, preventing nuisance trips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Style 50 Revison:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Style 50 revision incorporates updated electronic components that improve thermal resilience and long-term stability in high-density I\/O nests. This ensures the module maintains its 128 Mbps throughput even in peak ambient temperature conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Yokogawa NFSB100-S50 provided as new or refurbished?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe supply the NFSB100-S50 strictly as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. Every unit is shipped in the original Yokogawa factory box with anti-static protection and factory seals intact to guarantee SIS integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the NFSB100-S50 in a standard CENTUM DCS?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The NFSB100-S50 is specifically designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProSafe-RS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esafety system. While it shares some physical similarities with DCS couplers, the internal protocols are safety-rated and exclusive to the SIS architecture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support both local and remote nodes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The NFSB100-S50 acts as the master interface. It connects to local safety nodes via standard ESB cables or to remote safety nodes (up to 50km) when paired with the appropriate optical fiber repeater modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I replace an existing NFSB100 in a live system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn a redundant configuration, the NFSB100-S50 supports online replacement. Ensure the \"ACT\" LED on the partner module remains steady before removing the faulty unit. Follow the ProSafe-RS maintenance manual to verify the new module synchronizes correctly before leaving the site.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52542229250357,"sku":"NFSB100-S50","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/NFSB100-S50.jpg?v=1775551248","url":"https:\/\/www.5gplc.com\/products\/nfsb100-s50-yokogawa-prosafe-rs-safety-bus-coupler-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}