{"product_id":"serial-communication-module-nflr121-s50-s1-yokogawa","title":"Serial Communication Module NFLR121-S50 S1 Yokogawa","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFLR121-S50 S1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-reliability serial communication interface designed for the Yokogawa STARDOM autonomous control platform. It provides a critical communication link between FCN\/FCJ controllers and external industrial devices such as power meters, motor drives, and third-party PLC systems.\u003c\/p\u003e\n\u003cp\u003eThis module features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003etwo independent communication ports\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupporting both\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRS-422 and RS-485\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ephysical layers. It enables flexible network architectures including point-to-point and multi-drop bus configurations.\u003c\/p\u003e\n\u003cp\u003eDesigned for distributed control environments, the NFLR121-S50 S1 supports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003easynchronous serial communication\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith selectable half-duplex or full-duplex modes. Its industrial-grade design ensures reliable operation in high electromagnetic interference environments commonly found in oil \u0026amp; gas, water treatment, and renewable energy facilities.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003eNFLR121-S50 S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eSTARDOM Autonomous Control System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eDual RS-422 \/ RS-485 ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Modes\u003c\/td\u003e\n\u003ctd\u003eHalf-duplex or Full-duplex (software selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSynchronization\u003c\/td\u003e\n\u003ctd\u003eAsynchronous start-stop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Topology\u003c\/td\u003e\n\u003ctd\u003ePoint-to-point and multi-drop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eModbus-RTU, serial tunneling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation between ports and internal logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Indicators\u003c\/td\u003e\n\u003ctd\u003eTX, RX, and Status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eHot-swappable (depending on base unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Power\u003c\/td\u003e\n\u003ctd\u003e5V DC via STARDOM backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eThe NFLR121-S50 S1 is commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePipeline telemetry monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWellhead control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRemote terminal units (RTUs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFlow meter and smart sensor data aggregation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSCADA system field integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt allows STARDOM controllers to collect data from multiple serial devices over a single RS-485 network, reducing installation cost while maintaining high data integrity.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the difference between NFLR121 and ALR121 modules?\u003c\/strong\u003e\u003cbr\u003eThe NFLR121-S50 S1 is designed specifically for the STARDOM FCN\/FCJ controller series, while the ALR series is used in CENTUM VP \/ CS 3000 DCS architectures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can each port run different communication protocols?\u003c\/strong\u003e\u003cbr\u003eYes. Each port operates independently, allowing different device types, baud rates, or protocols to be configured simultaneously.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the module require external power?\u003c\/strong\u003e\u003cbr\u003eNo. The module receives 5V DC operating power directly from the STARDOM backplane bus.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51851076829496,"sku":"NFLR121-S50 S1","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/NFLR121-S50_S12.jpg?v=1772590989","url":"https:\/\/www.automodulexpert.com\/products\/serial-communication-module-nflr121-s50-s1-yokogawa","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}