{"product_id":"honeywell-2mli-d28a-masterlogic-200-digital-input-module","title":"Honeywell 2MLI-D28A MasterLogic-200 Digital Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 2MLI-D28A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e2MLI-D28A\u003c\/strong\u003e Digital Input Module, operates as a dedicated hardware component for high-density discrete signal acquisition within MasterLogic-200 PLC systems. Configured to interface 64 digital field channels operating at 24 VDC nominal, it converts physical binary state inputs into digital logic signals routed over the internal rack backplane.\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\u003e2MLI-D28A\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\u003eIndustrial Standard Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.30 lbs (0.14 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard MasterLogic-200 Module Width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane Powered (5 VDC Bus Load Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e64 Points\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 Type\u003c\/td\u003e\n\u003ctd\u003eSink \/ Source Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Classification\u003c\/td\u003e\n\u003ctd\u003eHigh-Density Digital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Type\u003c\/td\u003e\n\u003ctd\u003eMulti-pin Cable Connector\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 \u0026amp; DCS Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe 2MLI-D28A integrates optocoupler isolation barriers between external field wiring terminals and the backplane logic processing paths. This channel-to-channel isolation structure prevents high-voltage electrical surges, common-mode noise, and ground potential differences across the 64 discrete points from affecting the central processor logic. By decoupling field noise from system data buses, the module ensures robust execution alongside analog cards monitoring critical 4-20 mA HART loop protocol field instruments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How are field wiring connections terminated on the high-density 2MLI-D28A module?\u003c\/p\u003e\n\u003cp\u003eA: Due to the high-density 64-point architecture, connections are made via dedicated multi-pin front connectors designed for pre-wired cable assemblies or terminal block interface boards.\u003c\/p\u003e\n\u003cp\u003eQ: Is hot-swapping allowed for the 2MLI-D28A card during system operation?\u003c\/p\u003e\n\u003cp\u003eA: No, module replacement must be performed with the base rack chassis de-energized to prevent electrical arc damage to the high-density edge connector pins and CPU backplane bus corruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower off the main rack chassis supply and external 24 VDC field power sources prior to module installation.\u003c\/li\u003e\n\u003cli\u003eInsert the 2MLI-D28A into its assigned backplane slot, locking the module retaining latches securely.\u003c\/li\u003e\n\u003cli\u003eAttach pre-assembled multi-pin connector cables, ensuring strain-relief brackets are tightened to prevent accidental pin disconnection.\u003c\/li\u003e\n\u003cli\u003eKeep 24 VDC input signal cables isolated from high-voltage AC lines and motor leads inside wire ducts to suppress electromagnetic noise coupling.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53599201657141,"sku":"2MLI-D28A","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/2MLI-D28A_Cocoai.png?v=1789611706","url":"https:\/\/www.5gplc.com\/products\/honeywell-2mli-d28a-masterlogic-200-digital-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}