{"product_id":"yokogawa-aai141-h50-16-channel-analog-input-module","title":"Yokogawa AAI141-H50 16-Channel Analog Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa AAI141-H50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAAI141\u003c\/strong\u003e 16-Channel Analog Input Module, operates as a dedicated hardware component for multi-channel analog signal acquisition within Yokogawa CENTUM VP DCS platforms. It interfaces directly with 4 to 20 mA field transmitters, executing analog-to-digital signal processing for centralized process control loops.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTechnical Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-H\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Communication\u003c\/td\u003e\n\u003ctd\u003eIntegrated HART protocol support superimposed on 4 to 20 mA loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExplosion Protection\u003c\/td\u003e\n\u003ctd\u003eStandard non-explosionproof hardware configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModule Variant\u003c\/td\u003e\n\u003ctd\u003eStandard basic structural and electrical type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eAAI141-H50\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\u003e0.2 kg (Net), 1.5 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CENTUM VP I\/O Module Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Industrial Grade (0 to 60 deg C operational environment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard backplane power bus load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eNon-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHART Communication\u003c\/td\u003e\n\u003ctd\u003eSupported (-H code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eYokogawa CENTUM VP DCS\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 Integration\u003c\/h3\u003e\n\u003cp\u003eThe AAI141-H50 integrates HART protocol digital communication capability across its 16 non-isolated 4 to 20 mA input channels. It allows process variable signals and digital HART telemetry—such as secondary variables, calibration parameters, and field device diagnostics—to pass concurrently over existing field wiring. Internal filtering isolates the analog measurement conversion from digital carrier frequencies, providing continuous data update rates to the control station without signal degradation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What operational constraint arises from the non-isolated channel architecture of the AAI141-H50?\u003c\/p\u003e\n\u003cp\u003eA: Because the 16 channels share a common ground reference, all connected 4 to 20 mA loops must be isolated at the field transmitter level or powered from a common-ground power supply to prevent ground loop currents.\u003c\/p\u003e\n\u003cp\u003eQ: Can HART parameters be read from field devices connected to the AAI141-H50 while the system is online?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the onboard HART modem circuitry processes digital carrier signals in parallel with the 4 to 20 mA analog input values without disturbing live process control updates.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Mounting:\u003c\/strong\u003e Slide the AAI141-H50 module into the assigned I\/O slot of the CENTUM VP node unit until the locking mechanisms seat firmly into the backplane connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Wiring:\u003c\/strong\u003e Connect 4 to 20 mA loop conductors to the dedicated terminal block. Ensure that field transmitters do not introduce ground potential differences across the non-isolated channel commons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Connection:\u003c\/strong\u003e Connect cable drain wires to the system cabinet grounding busbar at a single point to prevent high-frequency noise interference on HART communications.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52677966659864,"sku":"AAI141-H50","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/AAI141-H50_Cocoai_252ebaff-8da4-4152-84d9-9806464d304b.jpg?v=1789374021","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-aai141-h50-16-channel-analog-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}