{"product_id":"di3311-triconex-32-channel-safety-digital-input-card","title":"DI3311 Triconex | 32-Channel Safety Digital Input Card","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriconex DI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-integrity\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDigital Input Module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor the Triconex Safety Instrumented System (SIS). This\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal module utilizes a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriple Modular Redundancy (TMR)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture to monitor 32 discrete field devices, including emergency stop buttons, limit switches, and pressure contacts. By processing every input through three isolated paths, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures that no single point of failure triggers a false trip or prevents a necessary safety action. It provides the foundational data required for SIL 3-rated Emergency Shutdown (ESD) and Fire and Gas (F\u0026amp;G) applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\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\u003eTechnical Details\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\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e32 Independent Digital Points\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTriple Modular Redundant (TMR)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Integrity Level\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSIL 3 Compliant (IEC 61508)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDiscrete Digital (Dry Contact\/Switch)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eChannel-to-System Optical Isolation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eContinuous Internal Self-Testing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIndividual Channel LEDs \u0026amp; Module Health LEDs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to +60 °C (32 to 140 °F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Triconex High-Density I\/O Rack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTriple Modular Redundancy (TMR):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincorporates three independent input legs. Two-out-of-three (2oo3) voting logic within the module identifies and masks faults in real-time. This ensures that the safety process remains online even if one internal processing path encounters a hardware failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSIL 3 Certified Reliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRigorous testing and certification allow the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto operate in mission-critical environments. It meets the strict requirements of IEC 61508, making it suitable for high-risk Oil \u0026amp; Gas, Power Generation, and Chemical processing facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtensive Online Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module continuously monitors the health of its internal circuitry and the status of the field wiring. Built-in microprocessor-controlled diagnostics detect open circuits and ground faults instantly, reporting them to the main controller for immediate corrective action.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHot-Swappable Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaintenance teams can replace the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile the system remains under power. This \"hot-swap\" capability eliminates production downtime during routine module upgrades or hardware replacements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density I\/O Footprint:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePackaging 32 safety-critical channels into a single module optimizes rack space. This density reduces the total number of chassis required for large-scale safety shutdowns, lowering the total cost of system ownership.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the TMR architecture improve safety over standard PLCs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStandard PLCs often utilize 1oo1 or 1oo2 architectures. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euses three parallel circuits and 2oo3 voting, which provides significantly higher fault tolerance and eliminates \"fail-to-danger\" scenarios caused by a single internal component failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of field devices can I connect to the DI3311?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module interfaces with any discrete voltage-free \"dry\" contact. Common applications include push buttons for Emergency Shutdown (ESD), limit switches for valve position feedback, and auxiliary contacts from motor starters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external calibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDI3311\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures factory-calibrated digital thresholds and internal self-calibration routines that maintain accuracy and response time throughout the module's service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":43107663413338,"sku":"DI3311","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/424._9da80e0d-ca55-4ad2-94d1-cdecc980d8e6.jpg?v=1774345814","url":"https:\/\/www.spareoil.com\/products\/di3311-triconex-32-channel-safety-digital-input-card","provider":"SpareOil Automation","version":"1.0","type":"link"}