{"product_id":"analog-i-o-module-yokogawa-nfai841-s50-s2","title":"Analog I\/O Module Yokogawa NFAI841-S50 S2","description":"\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAI841-S50 S2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a versatile hybrid analog module designed for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa CENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProSafe-RS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtrol architectures. It integrates\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 analog input channels and 8 analog output channels\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin a single\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFIO (Field Interface Option)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule, providing a compact and efficient solution for localized control loops.\u003c\/p\u003e\n\u003cp\u003eEach channel supports standard\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4–20 mA current signals\u003c\/strong\u003e, allowing the module to interface directly with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield transmitters, actuators, and valve positioners\u003c\/strong\u003e. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eS2 designation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erepresents a specific\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehardware revision\u003c\/strong\u003e, ensuring improved stability and long-term compatibility with modern\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFIO communication buses\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBy combining both input and output functionality in one module, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAI841-S50 S2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehelps simplify\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eI\/O rack configurations\u003c\/strong\u003e, reduce hardware requirements, and optimize space usage in distributed control nodes.\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\u003eChannel Configuration\u003c\/td\u003e\n\u003ctd\u003e8 Analog Inputs \/ 8 Analog Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Range\u003c\/td\u003e\n\u003ctd\u003e4–20 mA DC (input and output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Load Resistance\u003c\/td\u003e\n\u003ctd\u003e0–750 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Refresh Cycle\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V AC between field terminals and system logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Coefficient\u003c\/td\u003e\n\u003ctd\u003e±100 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e320 mA @ 5 V DC (internal) \/ 150 mA @ 24 V DC (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eYokogawa CENTUM VP FIO nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Revision\u003c\/td\u003e\n\u003ctd\u003eS2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eOperational Application\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAI841-S50 S2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis commonly deployed in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emodular process skids, water treatment facilities, and remote telemetry units (RTUs)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhere mixed I\/O requirements exist.\u003c\/p\u003e\n\u003cp\u003eBecause the module includes both\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eanalog input and output capabilities\u003c\/strong\u003e, it can manage a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecomplete control loop within a single module\u003c\/strong\u003e. For example, it can receive a signal from a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epressure or flow transmitter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile simultaneously sending a control signal to a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eregulating valve or actuator\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis dual-function capability reduces the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ephysical footprint of control cabinets\u003c\/strong\u003e, simplifies\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emarshalling design\u003c\/strong\u003e, and lowers overall\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esystem hardware costs\u003c\/strong\u003e, particularly in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edistributed or non-redundant control installations\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the inputs and outputs be used independently?\u003c\/strong\u003e\u003cbr\u003eYes. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 analog inputs and 8 analog outputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperate as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eindependent circuits\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin the control system software, allowing them to be assigned to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eseparate process loops or control functions\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support HART communication?\u003c\/strong\u003e\u003cbr\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAI841-S50 S2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003estandard analog I\/O module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithout built-in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHART passthrough capability\u003c\/strong\u003e. For HART-enabled functionality, users should consider\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI-series modules or dedicated HART-compatible I\/O modules\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal block is compatible with this module?\u003c\/strong\u003e\u003cbr\u003eThe module typically uses\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003estandard FIO pressure-clamp or screw terminal boards\u003c\/strong\u003e. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\/S50 suffix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eindicates a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003especific terminal interface configuration\u003c\/strong\u003e, so it is recommended to verify\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebackplane connector compatibility\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebefore installation.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51865026494776,"sku":"NFAI841-S50 ?S2","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/NFAR181-S00_S22.jpg?v=1773020857","url":"https:\/\/www.automodulexpert.com\/products\/analog-i-o-module-yokogawa-nfai841-s50-s2","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}