{"product_id":"3708e-triconex-tricon-3000-series-digital-input-modules","title":"3708E TRICONEX Tricon 3000 Series Digital Input Modules","description":"\u003ch2\u003eTRICONEX 3708E Tricon 3000 Series Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete signal processing in Tricon 3000 Series SIS racks, the \u003cstrong\u003eTRICONEX 3708E\u003c\/strong\u003e (\u003cstrong\u003e3708E\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution. The assembly routes field-derived binary status signals directly into the Triple Modular Redundancy (TMR) safety backplane matrix to drive real-time logic calculations.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3708E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTRICONEX (Schneider Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e177.8 mm x 101.6 mm x 228.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified \/ Backplane distributed (~6 mA per channel current draw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 isolated digital inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eDry contact or 24 VDC logic inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18-32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eTriple Modular Redundancy (TMR) with 2-out-of-3 voter logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 (IEC 61508 \/ IEC 61511)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 VAC galvanic isolation between channels and backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eContinuous per-channel monitoring, LED indicators, fault detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eIEC 61508 SIL3, TÜV, CE, UL Class I Div 2, ATEX Zone 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundancy and Safety Integrity\u003c\/h3\u003e\n\u003cp\u003eThe internal processing architecture enforces continuous safety loops using a hardware-implemented triple modular redundancy (TMR) 2oo3 voting scheme. Three fully separate microcontroller channels independently sample input voltage levels and resolve the application logic. Galvanic isolation rated at 1500 VAC splits the high-density field side circuitry from the core backplane communication bus. This arrangement blocks voltage surges and common-mode transients from disrupting the execution of safety interlocks, securing deterministic fail-safe state execution in strict alignment with IEC 61508 SIL3 certification rules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What boundaries govern hot-swap replacement procedures for this digital input hardware?\u003c\/p\u003e\n\u003cp\u003eA: The module permits hot-swap replacement directly within an energized system chassis slot. During the physical exchange, the TMR system maintains active diagnostics and processing on surrounding slots, which prevents the logic solver from triggering false shutdown actions or process trips.\u003c\/p\u003e\n\u003cp\u003eQ: How do the embedded diagnostics handle field loop integrity monitoring?\u003c\/p\u003e\n\u003cp\u003eA: The internal testing circuit performs continuous background scanning across all 32 channels. It cross-checks state configurations between the three processing legs to identify input voltage degradation, open loops, and hardware errors before they impact the overall safety loop runtime.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module vertically within the allotted slot of the Tricon 3000 Series SIS rack. Ensure all rear connectors align precisely with the active backplane before pushing the unit home and tightening the retention screws. Wire all field loops directly through the corresponding external termination baseplate assembly using twisted, shielded instrumentation wiring. Bond all cable shields directly to the dedicated low-impedance facility instrument ground bus to suppress electromagnetic interference (EMI). Route these low-voltage signal paths through dedicated cable trays away from heavy motor starters, variable speed drives, and high-power AC lines.\u003c\/p\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":43736163319898,"sku":"3708E","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/145.1_5b028eb3-4d30-43e7-a56a-36ce2f7b36de.jpg?v=1785118157","url":"https:\/\/www.spareoil.com\/ar\/products\/3708e-triconex-tricon-3000-series-digital-input-modules","provider":"SpareOil Automation","version":"1.0","type":"link"}