{"product_id":"3351-triconex-analog-input-module-32-point-tmr-safety-schneider","title":"3351 Triconex Analog Input Module | 32-Point TMR Safety Schneider","description":"\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e Analog Input Module is a masterpiece of Triple Modular Redundancy (TMR) engineering.\u003c\/li\u003e\n\u003cli\u003eUnlike standard inputs, the \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e utilizes three isolated electronics sets for maximum safety.\u003c\/li\u003e\n\u003cli\u003eThe mid-value voting logic filters out transient noise, ensuring superior data accuracy.\u003c\/li\u003e\n\u003cli\u003eThis module's integration with HART-compatible baseplates makes it a versatile asset for digital transformation.\u003c\/li\u003e\n\u003cli\u003eIt is the industry standard for high-stakes environments requiring functional safety and constant uptime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Core Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: \u003cstrong\u003eSchneider Electric \/ Triconex\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel Number: \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeries: \u003cstrong\u003eTriconex TMR Series\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModule Type: \u003cstrong\u003eAnalog Input (AI) Module\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput Points: 32 Channels (Commoned)\u003c\/li\u003e\n\u003cli\u003eSignal Standard: 4–20 mA DC Nominal\u003c\/li\u003e\n\u003cli\u003eOperating Range: 2–22 mA DC\u003c\/li\u003e\n\u003cli\u003eA\/D Resolution: 12 bits\u003c\/li\u003e\n\u003cli\u003eAbsolute Accuracy: 0.15% of full scale\u003c\/li\u003e\n\u003cli\u003eScan Performance: \u0026lt; 1 ms for all 32 points\u003c\/li\u003e\n\u003cli\u003eLogic Isolation: 800 VDC Minimum\u003c\/li\u003e\n\u003cli\u003ePower Protection: Absolute maximum 33 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSystem Diagnostics \u0026amp; Fault Tolerance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e employs Force-to-Value Diagnostics (FVD) for non-disruptive signal path testing.\u003c\/li\u003e\n\u003cli\u003eTMR Mode: Automatically passes the mid-value signal to the Main Processors (MPs).\u003c\/li\u003e\n\u003cli\u003eDual Mode: Switches to averaging logic automatically if a channel fault occurs.\u003c\/li\u003e\n\u003cli\u003eFault Indication: Individual channel LED alerts allow for targeted field maintenance.\u003c\/li\u003e\n\u003cli\u003eHot-Spare Support: Enables seamless module replacement without system shutdown.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCritical Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Shutdown Systems (ESD)\u003c\/strong\u003e: Critical for pressure and temperature monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire \u0026amp; Gas (F\u0026amp;G) Systems\u003c\/strong\u003e: Precise 4-20mA flame and toxic gas detector interfacing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler Management Systems (BMS)\u003c\/strong\u003e: Essential for fuel-to-air ratio control loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Area Monitoring\u003c\/strong\u003e: Compatible with Model 2354A baseplates for IS requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsset Management\u003c\/strong\u003e: Supports full HART communication pass-through for PC-based configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eLogistics \u0026amp; Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition\u003c\/strong\u003e: Industrial-grade reliability, fully verified for safety-critical service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: Comprehensive 12-Month operational warranty coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Time\u003c\/strong\u003e: Units are ready to ship within 24–48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Shipping\u003c\/strong\u003e: Fast global delivery via \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\u003eFAQ \u0026amp; Engineering Selection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich baseplate is required for HART communication with the 3351?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou must use the Model 2354 (Standard) or 2354A (Hazardous Location) baseplates to enable the HART feature.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow does the module handle a single channel failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn TMR mode, the module continues functioning; the Fault indicator lights up, but the process remains online.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the 180-ohm source impedance in the 3351 design?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt ensures high hardware stability and low thermal noise during the 4-20mA signal conditioning process.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this module be used for RTD or Thermocouple direct inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e is a current module; for RTD\/TC signals, use an External Termination Baseplate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSelection Guidance: When should I choose the 3351 over a hybrid module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSelect the \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e3351\u003c\/span\u003e\u003c\/strong\u003e when high-density analog monitoring (32 points) is required for dedicated safety loops.\u003c\/p\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":45014018097334,"sku":"3351","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/3351_TRICONEX.jpg?v=1776159055","url":"https:\/\/www.plcsparehub.com\/products\/3351-triconex-analog-input-module-32-point-tmr-safety-schneider","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}