{"product_id":"analog-i-o-module-aai841-h50-k4a00-yokogawa","title":"Analog I\/O Module AAI841-H50\/K4A00 Yokogawa","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI841 (P\/N: AAI841-H50\/K4A00)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-density analog I\/O module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa CENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtrol system. It provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 analog input channels and 8 analog output channels\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin a single slot, making it ideal for applications requiring a large number of signal exchanges in a compact footprint.\u003c\/p\u003e\n\u003cp\u003eUnlike the AAI835 series, the AAI841 is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enon-isolated (common-ground) design\u003c\/strong\u003e, offering a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecost-effective solution\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor installations where field signals share a stable reference or where external isolation is already provided.\u003cbr\u003eWith the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eH-suffix\u003c\/strong\u003e, the module supports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHART digital communication\u003c\/strong\u003e, enabling access to diagnostics and multivariable data from smart transmitters and valve positioners. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eK4A00 option\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincludes the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATK4A-00 KS cable interface adapter\u003c\/strong\u003e, simplifying cabinet wiring and reducing installation time.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Configuration\u003c\/td\u003e\n\u003ctd\u003e8 × analog input + 8 × analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type (Input)\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type (Output)\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 (shared common ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHART Communication\u003c\/td\u003e\n\u003ctd\u003eSupported (H-suffix)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e250 Ω to 500 Ω (depending on loop and power state)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Adapter\u003c\/td\u003e\n\u003ctd\u003eKS cable interface adapter (ATK4A-00)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eBasic type, non-explosion protected (H50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Time\u003c\/td\u003e\n\u003ctd\u003eOptimized for high-speed CENTUM VP control loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eApplication Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI841-H50\/K4A00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis well suited for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-density control environments\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esuch as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewater treatment facilities, utility systems, and auxiliary process units\u003c\/strong\u003e, where large I\/O counts are required and grounding conditions are well controlled.\u003cbr\u003eIt is especially effective when paired with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epre-isolated field devices\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor in installations with minimal electrical noise and stable reference potentials.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the main difference between the AAI841 and AAI835?\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI841\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigher channel density (8-in\/8-out)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebut is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enon-isolated\u003c\/strong\u003e, while the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI835\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elower density (4-in\/4-out)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003echannel-to-channel isolation\u003c\/strong\u003e. Choose AAI841 for dense, cost-sensitive systems and AAI835 where isolation is critical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support both HART 5 and HART 7 devices?\u003c\/strong\u003e\u003cbr\u003eYes. Yokogawa HART-enabled modules are\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebackward compatible\u003c\/strong\u003e, allowing communication with multiple HART versions and access to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePV, SV, TV, and QV\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evariables.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51672046272824,"sku":"AAI841-H50\/K4A00","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/AAI841-H50K4A00.jpg?v=1769651685","url":"https:\/\/www.automodulexpert.com\/products\/analog-i-o-module-aai841-h50-k4a00-yokogawa","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}