{"product_id":"3505e-triconex-tmr-digital-input-module-24vdc-32-point-in-stock","title":"3505E Triconex TMR Digital Input Module 24VDC 32-Point In Stock","description":"\u003ch3\u003e\u003cstrong\u003eProduct Introduction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eTriconex \u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e is a high-reliability Triple Modular Redundant (TMR) digital input module designed for safety-critical environments. Operating at a 24 VDC low threshold, this module manages 32 input points arranged in isolated groups of eight. It provides the voting logic necessary to ensure maximum system availability and fault tolerance. We recommend that maintenance engineers verify the compatibility of the External Termination Panel (ETP) before integrating the \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e into an active Tricon chassis.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cstrong\u003eTriconex\u003c\/strong\u003e (by Schneider Electric)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModule Type\u003c\/strong\u003e: TMR Digital Input (Low Threshold)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Points\u003c\/strong\u003e: 32 Points (Commoned in groups of 8)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e: 24 VDC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOperational Range\u003c\/strong\u003e: 20 to 42.5 VDC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSwitching Threshold (OFF to ON)\u003c\/strong\u003e: \u0026gt; 12 VDC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSwitching Threshold (ON to OFF)\u003c\/strong\u003e: \u0026lt; 4 VDC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Impedance\u003c\/strong\u003e: \u0026gt; 1.25 KΩ (Nominal)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTurn-On Current\u003c\/strong\u003e: 3 mA to 5 mA\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Delay\u003c\/strong\u003e: \u0026lt; 8 ms (OFF to ON) \/ \u0026lt; 15 ms (ON to OFF)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePoint Isolation\u003c\/strong\u003e: 1,500 VDC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNominal Field Power Load\u003c\/strong\u003e: 0.5 Watts per ON point\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColor Identification\u003c\/strong\u003e: Dark Red (Module Handle)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eConfiguration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505\u003c\/span\u003e\u003c\/strong\u003e (Digital Input Series)\n        \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eE\u003c\/strong\u003e (Enhanced Self-Test \/ Specific Voltage Profile)\n                \u003cul\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eTMR\u003c\/strong\u003e (Triple Modular Redundant Architecture)\n                        \u003cul\u003e\n                            \u003cli\u003e\n\u003cstrong\u003e32-Point\u003c\/strong\u003e (High-Density Grouped Interface)\u003c\/li\u003e\n                        \u003c\/ul\u003e\n                    \u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eAdvanced Diagnostic Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStuck-ON Self-Test\u003c\/strong\u003e: The \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e features internal circuitry that simulates a zero-input state to verify the optical isolation path. This ensures the module can always detect an \"OFF\" state in de-energize-to-trip safety loops.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e: \n        \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePASS\u003c\/strong\u003e: Module has successfully completed internal power-up and runtime diagnostics.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eFAULT\u003c\/strong\u003e: Indicates internal hardware failure or voting discrepancy.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eACTIVE\u003c\/strong\u003e: Confirms the module is currently processing field data.\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e is a cornerstone for \"de-energize-to-trip\" safety systems. Our technical review highlights the \"Stuck-ON\" test as its most vital feature; by freezing the last data reading in the I\/O processor during the test, it prevents false trips while ensuring the optical isolators haven't failed in a conductive state. Note that the Dark Red color coding is specific to this 24V profile—never attempt to force this into a high-voltage slot, as the mechanical keying is designed to prevent such hardware mismatches.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Service Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStandard Dispatch\u003c\/strong\u003e: Within 24-48 hours of order confirmation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLogistics Partners\u003c\/strong\u003e: Express worldwide delivery via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWarranty Period\u003c\/strong\u003e: Full 12-month industrial guarantee on all \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e units.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety Packaging\u003c\/strong\u003e: Shipped in specialized ESD-safe containers to preserve sensitive TMR circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTypical Applications \u0026amp; Device Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety Instrumented Systems (SIS)\u003c\/strong\u003e: Emergency Shutdown (ESD) and Fire \u0026amp; Gas (F\u0026amp;G) monitoring.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSystem Platform\u003c\/strong\u003e: Designed for use in \u003cstrong\u003eTricon\u003c\/strong\u003e version 9.6 and later chassis.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eField Interfacing\u003c\/strong\u003e: Requires a dedicated \u003cstrong\u003eExternal Termination Panel (ETP)\u003c\/strong\u003e and specialized cable interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFAQ (Engineering Experience)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the Stuck-ON test affect the PLC scan time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe test runs transparently; the I\/O processor freezes the last valid reading during the brief test window to prevent logic disruption.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the 3505E be hot-swapped without shutting down the system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, all TMR digital modules support hot-spare capability when used in a configured chassis with an available slot.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the 2VDC typical hysteresis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHysteresis prevents \"chattering\" of the input signal when the field voltage fluctuates near the 12V switching threshold.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this module require external field power for the inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the field loop must be powered externally as the module acts as a passive sink with a 1.25 KΩ nominal impedance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is the 3505E handle color-coded Dark Red?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn Triconex systems, color coding allows for rapid visual verification of module types (e.g., Low Threshold DC vs. AC modules) during maintenance.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSelection \u0026amp; Purchasing Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003eVerify that your field voltage remains within the 20-42.5 VDC range to ensure the \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e correctly registers \"ON\" states.\u003c\/li\u003e\n    \u003cli\u003eEnsure your backplane has the correct mechanical keying for a 32-point TMR module.\u003c\/li\u003e\n    \u003cli\u003eCheck the existing \u003cstrong\u003eETP\u003c\/strong\u003e (External Termination Panel) part number to confirm it supports 32-point TMR digital inputs.\u003c\/li\u003e\n    \u003cli\u003eConfirm that your system's \"active\" and \"fault\" reporting logic is configured to recognize the \u003cstrong\u003e\u003cspan style=\"color: #d10000;\"\u003e3505E\u003c\/span\u003e\u003c\/strong\u003e specific diagnostic flags.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":45014043656374,"sku":"3505E","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/3505Etriconex.jpg?v=1775556811","url":"https:\/\/www.plcsparehub.com\/products\/3505e-triconex-tmr-digital-input-module-24vdc-32-point-in-stock","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}