{"product_id":"nflr121-s00-yokogawa-centum-vp-series-datasheet-technical-manual","title":"NFLR121-S00 Yokogawa CENTUM VP Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eYokogawa NFLR121-S00 Serial Communication Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFLR121-S00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFLR121\u003c\/strong\u003e Serial Communication Module, operates as a dedicated hardware component for serial data transfer within \u003cstrong\u003eCENTUM VP \/ CS 3000\u003c\/strong\u003e networks.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model\u003c\/strong\u003e: NFLR121 (Serial Communication Module, RS-422\/RS-485 layout execution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuffix Type (-S)\u003c\/strong\u003e: Standard mechanical block configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Variant (00)\u003c\/strong\u003e: Standard connector configuration without integrated surge absorber units\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\u003eNFLR121-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\u003e0.4 kg nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 12.4 cm 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 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eDerived from primary node backplane interface assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Pin Rating\u003c\/td\u003e\n\u003ctd\u003e1.5 A per pin maximum continuous current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 V maximum boundary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Layer Standard\u003c\/td\u003e\n\u003ctd\u003eRS-422 \/ RS-485 differential line topology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShielding Structure\u003c\/td\u003e\n\u003ctd\u003eFull EMI shielding (integrated foil + braid configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;=1000 MOhm evaluated at 500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e1500 V AC sustained for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Compliance\u003c\/td\u003e\n\u003ctd\u003eFlame-retardant PVC material with CE and RoHS certification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Subsystem Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe NFLR121-S00 functions as a physical interface link layer, translating differential RS-422\/RS-485 signal states into data frames for processing by the central system. The transceiver circuits isolate field inputs to maintain signal integrity alongside parallel 4-20 mA HART loop protocol instruments. This design utilizes channel-to-channel isolation principles to suppress common-mode electrical noise and prevent ground-loop cross-talk across external networks. Digital variable variables pass smoothly through the interface layer, and built-in cold junction compensation (CJC) offsets remain uncorrupted by any nearby electromagnetic induction.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the explicit electrical behaviors and risk constraints when running live hot-swap procedures with the NFLR121-S00 module?\u003c\/p\u003e\n\u003cp\u003eA: The hardware supports active physical extraction and insertion while the node chassis is energized. However, executing a live hot-swap immediately breaks the differential serial communication loop across the associated ports, which drops active variables and generates immediate communication fault frames within the DCS controller registers.\u003c\/p\u003e\n\u003cp\u003eQ: How does the lack of an integrated surge absorber in the -S00 configuration affect inductive field lines?\u003c\/p\u003e\n\u003cp\u003eA: The -S00 designation indicates a standard termination layout without built-in surge clamping components. If the module interfaces with field setups susceptible to high-voltage induction or lightning transients, external surge barriers must be wired into the loop to protect the 1500 V AC dielectric isolation layer.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Seating and Mechanical Grounding:\u003c\/strong\u003e Guide the unit along the chassis card slot rails until the rear high-density multipin connector seats into the backplane matrix. Fasten the integrated faceplate retaining screws to verify low-impedance grounding with the cabinet framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Terminal and Earth Drainage:\u003c\/strong\u003e Connect the external serial cable's foil-and-braid shield directly to the low-impedance copper ground bar inside the marshalling cabinet. Do not configure multiple ground connections to prevent creating secondary ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Separation Distance Constraints:\u003c\/strong\u003e Route all low-voltage serial data lines inside independent wire ducts. Maintain a physical space of at least 300 mm from high-voltage AC mains, power distribution cables, or motor drive lines to eliminate induced transient noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Environment Management:\u003c\/strong\u003e Keep vertical airflow channels around the card slot assembly free of obstructions to ensure passive air dissipation, keeping the surrounding temperature within the -20 to +70 deg C operating index.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44230284214371,"sku":"NFLR121-S00","price":360.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/341._e43bc288-39d6-48f6-877c-3527a043fc36.jpg?v=1780303495","url":"https:\/\/www.autocontrolglobal.com\/products\/nflr121-s00-yokogawa-centum-vp-series-datasheet-technical-manual","provider":"AutoControl Global","version":"1.0","type":"link"}