{"product_id":"honeywell-51402755-100-51304848-100-51305099-100-input-module","title":"Honeywell 51402755-100 51304848-100 51305099-100 Input Module","description":"\u003cdiv class=\"qk-md-paragraph qk-md-has-multi-modal\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 51402755-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51402755-100\u003c\/strong\u003e Digital Input Module (associated with board numbers \u003cstrong\u003e51304848-100\u003c\/strong\u003e and \u003cstrong\u003e51305099-100\u003c\/strong\u003e), operates as a dedicated hardware component for 24 VDC discrete signal acquisition within Honeywell DCS and process automation platforms. It directly monitors field switches, relay contacts, and proximity sensors across 16 channels while enforcing fail-safe state execution during power loss or communication interrupts.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBase Part Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eAssociated Board \/ Sub-Assembly\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Hardware Level\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e51402755-100\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51304848-100\u003c\/td\u003e\n\u003ctd\u003ePrimary Digital Input Module Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e51402755-100\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51305099-100\u003c\/td\u003e\n\u003ctd\u003eSub-Assembly \/ Printed Circuit Board Component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e51402755-100 (51304848-100 \/ 51305099-100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 lbs (0.23 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.7 x 2.5 x 3.5 in (4.4 x 6.4 x 8.9 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Industrial Operating Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLess than 100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 Digital Input Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e3 to 36 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e10 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Output\u003c\/td\u003e\n\u003ctd\u003e24 VDC @ 100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and HART Loop Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned for dense process control cabinets, the module features robust channel-to-channel isolation and galvanic signal filtering to prevent field noise, high-voltage transients, and ground loops from affecting backplane logic. The hardware maintains fail-safe state execution under fault conditions while seamlessly interfacing with Honeywell process networks. Integrated noise filtering and cold junction compensation (CJC) processing across adjacent I\/O cards protect low-level signal paths and ensure deterministic data transmission alongside 4-20 mA HART loop protocol networks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the fail-safe design of the 51402755-100 function during communication loss?\u003c\/p\u003e\n\u003cp\u003eA: Upon detecting a backplane communication timeout or primary power loss, the input module forces channel state registers into a predetermined fail-safe default state to ensure predictable controller behavior and prevent false process trips.\u003c\/p\u003e\n\u003cp\u003eQ: What input voltage thresholds are supported on the 16 channels?\u003c\/p\u003e\n\u003cp\u003eA: Each channel accepts a nominal 24 VDC input signal while operating across a wide wide-range tolerance of 3 to 36 VDC with a 10 mA per-channel current draw.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the I\/O rack power supply is turned off before inserting or removing the module from the chassis slot.\u003c\/li\u003e\n\u003cli\u003eAlign the module circuit board with the chassis slot guides and slide it in firmly until the backplane connector fully seats.\u003c\/li\u003e\n\u003cli\u003eWire field contact inputs to the corresponding terminal block terminals using shielded twisted-pair conductors.\u003c\/li\u003e\n\u003cli\u003eConnect all field wiring cable shields directly to the cabinet functional ground (FE) busbar to prevent electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eTighten terminal connection screws to recommended torque limits and verify that operating voltages remain within the 3 to 36 VDC range.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52693192474904,"sku":"51402755-100 51304848-100 51305099-100","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/51402755-10051304848-10051305099-100_1871c99d-f756-4aee-8f11-4ed3ef1166b4.png?v=1789613390","url":"https:\/\/www.innoplcsync.com\/products\/honeywell-51402755-100-51304848-100-51305099-100-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}