{"product_id":"aai141-s50-k4a00-yokogawa-dcs-module-aai141-analog-input-card","title":"AAI141-S50\/K4A00 Yokogawa DCS Module AAI141 Analog Input Card","description":"\u003ch3\u003e\u003cstrong\u003eEngineering Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eYokogawa\u003c\/span\u003e \u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e\u003c\/strong\u003e functions as a high-density analog input interface module engineered for the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eCENTUM VP\u003c\/span\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eCENTUM CS 3000\u003c\/span\u003e\u003c\/strong\u003e distributed control systems (DCS). Operating as a key component of the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141 Series\u003c\/span\u003e\u003c\/strong\u003e, this module accepts 16 non-isolated 4 to 20 mA DC field signals. It delivers simultaneous real-time process monitoring and direct digital integration through integrated HART protocol capabilities.\u003c\/p\u003e\n\n\u003cp\u003eHardware engineers designed this module to power connected field instruments directly while sampling data at an aggressive 10 ms cycle. Its compact 0.2 kg form factor, combined with the factory-installed KS Cable Interface Adapter, drastically reduces panel footprint and streamlines multichannel cabinet marshalling.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePart Number Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBase Module: \u003cspan style=\"color: #d9534f;\"\u003eAAI141\u003c\/span\u003e\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eFunction: 16-channel non-isolated 4-20 mA DC analog input interface module.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuffix Code 1: -S\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eCommunication Type: Standard type communication featuring native HART protocol support.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuffix Code 2: 5\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eExplosion Protection: Standard non-explosionproof specification.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuffix Code 3: 0\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eHardware Revision: Basic module design architecture.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOption Code: \/K4A00\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eInterface Provision: Equipped with factory KS Cable Interface Adapter for direct marshalling connection.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer Brand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eYokogawa\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFull Model Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBase Hardware Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141 Series \/ CENTUM VP I\/O\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModule Function\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e16-Channel Non-Isolated Current Input Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInput Signal Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e4 to 20 mA DC (Allowable maximum: 27 mA)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasurement Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e±16 µA baseline full-scale accuracy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eData Scan Rate\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10 ms high-speed update cycle\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStep Response Time\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e100 ms max response time\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInput Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePower ON: 400 Ω (at 20 mA) to 1000 Ω (at 4 mA)\u003cbr\u003ePower OFF: 500 kΩ or larger\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTransmitter Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e14.8 V DC minimum (at 20 mA) to 26.4 V DC maximum (at 0 mA)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eChannel Wiring Topology\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSelectable 2-wire or 4-wire transmitter mode per channel via onboard jumper pins\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eThermal Drift Factor\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e±16 µA per 10°C ambient temperature shift\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e310 mA at 5 V DC bus power | 450 mA at 24 V DC system supply\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConnection Terminals\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eKS cable interface, pressure clamp terminal block, or MIL connector cable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModule Mass\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.2 kg (0.44 lbs) net weight\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTarget DCS Architectures and Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e\u003c\/strong\u003e module integrates seamlessly into continuous process industry environments:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrimary process control loops inside \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eYokogawa CENTUM VP\u003c\/span\u003e\u003c\/strong\u003e Field Control Stations (FCS).\u003c\/li\u003e\n  \u003cli\u003ePetrochemical refinery distillation column temperature and pressure transmitter arrays.\u003c\/li\u003e\n  \u003cli\u003eFlow rate transmitter aggregation across water treatment and power generation facilities.\u003c\/li\u003e\n  \u003cli\u003eSmart field device management loops utilizing embedded HART pass-through telemetry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eAdvanced System Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141\u003c\/span\u003e\u003c\/strong\u003e card provides system engineers with proactive maintenance feedback:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContinuous monitoring of channel loop currents to detect open-circuit or short-circuit line faults instantly.\u003c\/li\u003e\n  \u003cli\u003eReal-time HART status diagnostics for verifying field instrument health and calibration parameters remotely.\u003c\/li\u003e\n  \u003cli\u003eInternal hardware self-tests that flag power rail voltage drops or internal component drift back to the FCS diagnostics buffer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDuring a emergency turnaround project at an ethylene plant, a customer experienced erratic input readings across several loops after installing replacement field transmitters. Our field team reviewed the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e\u003c\/strong\u003e card setup and discovered that the new transmitters were active 4-wire units, whereas the onboard channel pins were still set to passive 2-wire mode. Because the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141\u003c\/span\u003e\u003c\/strong\u003e features per-channel physical setting pins, we quickly reconfigured the affected channels on-site without needing to purchase separate signal isolators or external power supplies.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal Shipping and Warranty Coverage\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe deliver industrial automation parts worldwide under standard commercial guarantees:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Month Warranty:\u003c\/strong\u003e Every unit is fully covered by a \u003cstrong\u003e12-month replacement warranty\u003c\/strong\u003e starting on the date of delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24-48 Hour Dispatch:\u003c\/strong\u003e Orders are processed, tested, and dispatched from stock within \u003cstrong\u003e24 to 48 hours\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpress Logistics:\u003c\/strong\u003e Shipped globally via top-tier express couriers: \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSelection and Procurement Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eConfirm these technical factors before finalizing your order for the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Needs:\u003c\/strong\u003e Verify that your loops share a common ground reference. The \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eAAI141\u003c\/span\u003e\u003c\/strong\u003e is a non-isolated module; choose the AAI143 if channel-to-channel isolation is mandatory.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCabinet Wiring:\u003c\/strong\u003e Ensure the \u003cstrong\u003e\/K4A00\u003c\/strong\u003e option suffix matches your existing terminal arrangement (KS multi-core cable interface adapter).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField Powering:\u003c\/strong\u003e Check channel setting pins prior to power-up to match 2-wire loop-powered or 4-wire externally powered sensors correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion 1: How do I change an individual channel on the \u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e from a 2-wire to a 4-wire transmitter input?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou can adjust the channel power configuration manually by setting the physical onboard jumper pin corresponding to that specific input channel before inserting the card into the rack.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion 2: What is the main practical advantage of the \/K4A00 option code on this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \/K4A00 code indicates that the unit comes factory-equipped with a KS cable interface adapter, allowing direct plug-and-play connection to external marshalling panels via pre-assembled Yokogawa system cables.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion 3: Can this module read dynamic process signals fast enough for rapid shutdown loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith a 10 ms data scan update period and a 100 ms step response time, the module easily handles high-speed control loops, though safety instrumented systems generally mandate dedicated ProSafe-RS hardware.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion 4: Does using a non-isolated module like the \u003cspan style=\"color: #d9534f;\"\u003eAAI141\u003c\/span\u003e pose ground loop risks in large plants?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Because the channels share a common ground, installing unisolated transmitters in noisy environments with ground potential differences can degrade signal accuracy. Use signal isolators or isolated cards for such specific lines.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion 5: What occurs to the input resistance of the \u003cspan style=\"color: #d9534f;\"\u003eAAI141-S50\/K4A00\u003c\/span\u003e if the module loses control power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen system power drops OFF, the internal input resistance automatically jumps to 500 kΩ or higher. This high-impedance state prevents the module from overloading the field loop or draining external loop power sources.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45014045130934,"sku":"AAI141-S50\/K4A00","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/AAI141-S50-K4A00_19e17525-48f2-4898-af25-4e248d6e2cc2.jpg?v=1785826074","url":"https:\/\/www.plcsparehub.com\/products\/aai141-s50-k4a00-yokogawa-dcs-module-aai141-analog-input-card","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}