{"product_id":"triconex-3481-tricon-4-channel-tmr-analog-output-module","title":"AO3481 \/ 3481 | Triconex | Tricon 4-Channel TMR Analog Output Module","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriconex AO3481 (also identified as 3481)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacts as the high-integrity interface between the Tricon controller and critical field final control elements. This 4-channel analog output module converts digital commands into precise 4-20 mA signals to drive modulating valves, actuators, and motor controllers. By utilizing Triple Modular Redundancy (TMR) technology, the AO3481 ensures continuous operation even during internal hardware failures, making it a cornerstone for Emergency Shutdown (ESD) and Fire \u0026amp; Gas (F\u0026amp;G) systems. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original factory-sealed stock\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAO3481 \/ 3481\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Isolated Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Signal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4–20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Accuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.25% of full scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 bits\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 1 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC Nominal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTriple Modular Redundancy (TMR)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFault Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOnboard Diagnostic Logic\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eEngineering Advantages\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTMR Fault Tolerance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe AO3481 executes hardware voting across three independent internal signal paths. If a component fails within one path, the remaining two maintain the 4-20 mA output without a bump in the signal, preventing nuisance plant trips and maintaining process stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Channel Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndividual isolation for each of the four channels blocks signal noise and ground loops. This protection ensures that electromagnetic interference (EMI) from high-power variable frequency drives (VFDs) or heavy machinery does not corrupt the sensitive control signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSub-Millisecond Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module achieves a response time of less than 1 ms. This ultra-fast execution allows the safety system to close valves or throttle turbines almost instantaneously during critical over-pressure or over-speed events.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eComprehensive Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced diagnostic algorithms monitor the output circuit's health in real-time. The module detects and isolates field-side faults or internal drifts immediately, providing maintenance teams with actionable data to perform hot-swap replacements before a total system shutdown occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFAQs\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the AO3481 \/ 3481 support hot-swapping under live power?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. The Tricon chassis architecture allows you to remove and replace the AO3481 module without powering down the system or interrupting the process, provided the redundant module remains healthy and active.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the 12-bit resolution in a safety system?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 12-bit resolution provides high granularity for the 4-20 mA signal. This precision enables the controller to make very fine adjustments to modulating control valves, reducing mechanical wear and optimizing fuel or chemical flow in sensitive processes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a difference between the AO3481 and the 3481 model numbers?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIn the Triconex ecosystem, the \"AO\" prefix specifically denotes \"Analog Output,\" while 3481 is the numerical model designation. Both refer to the same physical 4-channel TMR hardware and are cross-compatible within the same series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":52489926443317,"sku":"AO3481\/3481","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/3481.jpg?v=1774580247","url":"https:\/\/www.5gplc.com\/products\/triconex-3481-tricon-4-channel-tmr-analog-output-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}