{"product_id":"nx-ad3208-omron-analog-input-unit-nx-series","title":"NX-AD3208 Omron Analog Input Unit NX Series","description":"\u003cp\u003eThe \u003cstrong\u003eOmron NX-AD3208\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNX-AD3208\u003c\/strong\u003e Analog Input Unit, operates as a dedicated hardware component for high-speed current signal acquisition within EtherCAT and EtherNet\/IP control networks.\u003c\/p\u003e\n\u003ch3\u003eInternal Model Structure \u0026amp; Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNX\u003c\/strong\u003e: Slice I\/O modular system family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAD\u003c\/strong\u003e: Analog input unit category.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\u003c\/strong\u003e: 4 input points configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2\u003c\/strong\u003e: 4 to 20 mA analog input current range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e08\u003c\/strong\u003e: High-resolution (1\/30000) performance tier with 10 us\/point conversion speed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Physical Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003eNX-AD3208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\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\u003e0.07 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e1.2 cm x 10.0 cm x 7.1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.30 W max (CPU unit), 0.95 W max (Coupler unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current Range\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Conversion Range\u003c\/td\u003e\n\u003ctd\u003e-5 to 105% (full scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1\/30000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Time\u003c\/td\u003e\n\u003ctd\u003e10 us\/point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Maximum Rating\u003c\/td\u003e\n\u003ctd\u003e+\/-30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Method\u003c\/td\u003e\n\u003ctd\u003eDifferential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% FS (at 25 deg C), +\/-0.2% FS (0 to 55 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Method\u003c\/td\u003e\n\u003ctd\u003ePower = Transformer, Signal = Digital isolator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e20 Mohm min between isolated circuits (at 100 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e510 VAC for 1 min at 5 mA max leakage current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eScrewless clamping terminal block (12 terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSynchronous Backplane Communication \u0026amp; High-Density Processing\u003c\/h3\u003e\n\u003cp\u003eThe module synchronizes current conversions directly with the host controller or network coupler via the internal backplane bus. High backplane bus communication velocity supports deterministic data updates operating in switching synchronous I\/O refreshing or Free-Run refreshing modes. Firmware flash compatibility maintains reliable analog sampling parameters across system expansion updates, facilitating scalable I\/O density scaling while isolating field signals from internal backplane logic.\u003c\/p\u003e\n\u003ch3\u003eShipping Box Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron NX-AD3208 Analog Input Unit\u003c\/li\u003e\n\u003cli\u003e1 x Screwless Clamping Terminal Block (12 Terminals)\u003c\/li\u003e\n\u003cli\u003e1 x Terminal Identification Marker\u003c\/li\u003e\n\u003cli\u003e1 x Installation Instruction Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMounting Protocols \u0026amp; Field Wiring Rules\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlice Alignment\u003c\/strong\u003e: Align the side guide rails of the NX-AD3208 with the adjacent module or coupler, sliding until the backplane bus latch clicks firmly into position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Loop Connections\u003c\/strong\u003e: Wire 4 to 20 mA transmitter loops to differential input terminals (+I and -I) using twisted-pair shielded cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding\u003c\/strong\u003e: Connect the cable shield directly to the functional earth terminal block to mitigate high-frequency electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Wiring\u003c\/strong\u003e: Insert solid wires or ferruled conductors (AWG 24 to AWG 16) directly into the screwless spring-cage terminals without applying excess tool pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical \u0026amp; Diagnostic FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat isolation exists between individual analog input channels on this module?\u003c\/p\u003e\n\u003cp\u003eIsolation is provided between the input circuits and the internal NX backplane bus, but no electrical isolation exists between individual channels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does switching synchronous I\/O refreshing operate on an EtherCAT network?\u003c\/p\u003e\n\u003cp\u003eInput conversions lock directly to the EtherCAT distributed clock (DC) cycle, allowing cycle-accurate signal sampling at 10 us\/point.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat happens if an input signal exceeds the nominal 20 mA limit?\u003c\/p\u003e\n\u003cp\u003eThe channel processes overrange signals within an extended conversion range of -5 to 105% (full scale) before reaching the +\/-30 mA absolute maximum limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module provide power for 2-wire loop transmitters?\u003c\/p\u003e\n\u003cp\u003eNo, the unit operates without internal I\/O power supply terminals; field transmitters require an external 24 VDC loop power supply.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan modules be pulled or inserted while the backplane bus is energized?\u003c\/p\u003e\n\u003cp\u003eNo, removing or hot-swapping the unit under power disrupts the local backplane bus cycle and can trigger controller fault routines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat wire strip length is recommended for the screwless terminal block?\u003c\/p\u003e\n\u003cp\u003eStrip solid copper conductors or stranded wire ferrules to a length of 10 mm prior to insertion into the push-in terminal slots.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is an analog input open-circuit condition detected?\u003c\/p\u003e\n\u003cp\u003eCurrent values falling below 3.2 mA (-5% FS) trigger an under-range warning flag accessible via controller I\/O mapping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat status indications are displayed on the front panel?\u003c\/p\u003e\n\u003cp\u003eThe TS (Terminal Status) LED provides status feedback, illuminating green during normal operation and flashing or lighting red during faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306612342957,"sku":"NX-AD3208?","price":154.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/nx-ad3208_1_2.jpg?v=1790392214","url":"https:\/\/www.maxwellplc.com\/products\/nx-ad3208-omron-analog-input-unit-nx-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}