{"product_id":"aai841-s00-yokogawa-centum-vp-16-channel-analog-i-o-module","title":"AAI841-S00 | Yokogawa CENTUM VP 16-Channel Analog I\/O Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AAI841-S00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacts as a dual-function analog interface module within the CENTUM VP Distributed Control System (DCS). This high-efficiency component combines 8 input channels and 8 output channels into a single module, optimizing rack space while maintaining precise control over field instrumentation. It manages 4 to 20 mA signals for both sensing and actuation, making it a critical hub for PID control loops and complex process monitoring. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand original, ensuring the hardware meets strict factory standards for mission-critical automation.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe AAI841-S00 follows Yokogawa's standard modular coding for I\/O hardware:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAAI841:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBase Model (Analog I\/O Module, 8 Inputs \/ 8 Outputs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard Type (Standard signal processing and environmental specs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBasic type configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways 0 (Standard internal logic)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe AAI841-S00 delivers high-speed data acquisition and deterministic signal output.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eI\/O Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8 Input Channels \/ 8 Output Channels (Non-isolated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4 to 20 mA (Input and Output)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Update Period:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e10 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Step Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e400\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\Omega$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eat 20 mA; 1000\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\Omega$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eat 4 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOff-State Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\ge$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e500 k$\\Omega$ (Input);\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\ge$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e1 M$\\Omega$ (Output)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eError less than ±48\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\mu$\u003c\/span\u003eA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOpen-Circuit Detection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTriggers at resistance\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\ge$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e340 k$\\Omega$\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransmitter Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompatible with 2-wire and 4-wire configurations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100% Brand New and Original\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe AAI841-S00 addresses specific industrial integration challenges through its hybrid I\/O architecture:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Rack Optimization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy integrating both inputs and outputs on a single card, the AAI841-S00 reduces the number of physical modules required in the I\/O nest. This configuration saves up to 50% of the rack space compared to using separate input and output modules, allowing for smaller cabinet footprints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Real-Time Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA 10 ms data update period eliminates communication lag. This speed enables the module to support fast-acting control loops, such as pressure regulation and flow control, where millisecond delays could compromise process stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Fault Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module incorporates circuit-open detection for all input channels. It identifies broken field wires or transmitter failures instantly by monitoring resistance levels, triggering system alarms before a process upset occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Field Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports both 2-wire (loop-powered) and 4-wire (externally powered) transmitters. This flexibility allows engineers to standardize on a single I\/O module type even when the field instrumentation uses mixed power architectures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the AAI841-S00 replace separate AAI141 and AAI541 modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, provided your system architecture supports the shared common ground of this non-isolated module. Combining functions into the AAI841-S00 simplifies your spares inventory and reduces the total cost of ownership for your I\/O subsystem.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require a specific power supply for 2-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module draws its operating power from the DCS backplane. For 2-wire transmitters, it distributes the necessary loop power through the signal terminals. Ensure your system power budget accommodates the maximum current draw when all 8 inputs utilize 2-wire devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the 500 k$\\Omega$ resistance when powered off?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHigh resistance during power-off states ensures that a failed or unpowered module does not load the field loop or interfere with other devices. This protects signal integrity across the rest of the segment during maintenance or unexpected power loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the AAI841-S00 handle signal noise?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module accepts a common-mode voltage of ±1 V or more. While this provides standard industrial noise rejection, we recommend using shielded twisted-pair cabling and proper grounding of the I\/O nest to maintain the ±48\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\mu$\u003c\/span\u003eA accuracy in high-EMI environments.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53296844177592,"sku":"AAI841-S00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/AAI841-S00.jpg?v=1776153324","url":"https:\/\/www.globalpetroparts.com\/products\/aai841-s00-yokogawa-centum-vp-16-channel-analog-i-o-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}