{"product_id":"yokogawa-nfai841-s00-stardom-fio-analog-i-o-module","title":"Yokogawa NFAI841-S00 STARDOM FIO Analog I\/O Module","description":"\u003ch2\u003eYokogawa NFAI841-S00 Analog I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFAI841-S00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFAI841\u003c\/strong\u003e Analog I\/O Module, operates as a dedicated hardware component for simultaneous 4-20 mA DC input and output signal processing within CENTUM VP and STARDOM control platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNFAI841\u003c\/strong\u003e: Analog I\/O Module (4 to 20 mA, 8-channel input \/ 8-channel output)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S\u003c\/strong\u003e: Standard hardware type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Basic type with no intrinsic explosion protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Basic type with standard conformal coating (Style S2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eNFAI841-S00\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 0.20 kg (0.44 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard FIO single-slot width (2.2 x 12.4 x 12.6 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e230 mA (5 V DC), 540 mA (24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 channels, non-isolated, 4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 channels, non-isolated, 4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 16 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Drift\u003c\/td\u003e\n\u003ctd\u003e+\/- 16 uA per 10 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\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 I\/O channels and system backplane (1 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\u003c\/td\u003e\n\u003ctd\u003eISA G3 corrosion resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control \u0026amp; Instrumentation Attributes\u003c\/h3\u003e\n\u003cp\u003eThe NFAI841-S00 manages 8 analog inputs and 8 analog outputs on a shared negative return path, operating as a high-density, non-isolated field interface. The device is designed to process standard 4-20 mA HART loops, allowing simultaneous transmission of the analog process variable and digital diagnostics. While channel-to-channel isolation is not implemented within this specific card design, the complete I\/O loop circuitry is decoupled from the active system bus via a 1500 V AC galvanic isolation barrier. This baseline prevents ground loop noise on the plant floor from corrupting the central processor backplane.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How must the power loops be wired considering the non-isolated channel architecture?\u003c\/p\u003e\n\u003cp\u003eA: Because the 8 input and 8 output channels share a common internal return line, all field devices connected to this module must operate on the same reference potential. Avoid coupling loops with disparate power supply systems to prevent parallel ground currents.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support online hot-swap procedures in redundant schemes?\u003c\/p\u003e\n\u003cp\u003eA: Yes. When configured in dual-redundant pairing within the FIO node, a faulty module can be removed and replaced under power without dropping the active 4-20 mA output signals or interrupting the system scan.\u003c\/p\u003e\n\u003cp\u003eQ: What are the installation limits regarding hazardous gas zones?\u003c\/p\u003e\n\u003cp\u003eA: The \"00\" suffix combination specifies a module with no built-in explosion protection. Consequently, any connections running to transmitters in Zone 1 or Zone 2 atmospheres must interface with external, DIN-rail mounted intrinsic safety barriers.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Mounting:\u003c\/strong\u003e Slide the Style S2 module into the allocated slot of the FIO node base plate. Push firmly until the lock tabs snap into place to verify a low-resistance connection to the backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Board Connections:\u003c\/strong\u003e Connect field cabling directly via the specified pressure clamp terminal blocks. Ensure all screws are properly torqued to prevent terminal resistance buildup on the loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements:\u003c\/strong\u003e Terminate all transmitter signal shields at a single point on the designated cabinet instrument ground bar. Avoid multiple grounding points to maintain the 1500 V AC isolation barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Provide continuous ventilation inside the enclosure. When operating close to the +70 deg C limit, ensure adjacent slots remain vacant or utilize forced air cooling to minimize the potential for thermal drift.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43664973496410,"sku":"NFAI841-S00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/215.1_85c26847-12cc-4d98-951f-c5f1e83c6e49.jpg?v=1784172979","url":"https:\/\/www.spareoil.com\/products\/yokogawa-nfai841-s00-stardom-fio-analog-i-o-module","provider":"SpareOil Automation","version":"1.0","type":"link"}