{"product_id":"honeywell-2mli-d22a-masterlogic-200-16-point-dc-input-module","title":"Honeywell 2MLI-D22A MasterLogic-200 16-Point DC Input Module","description":"\n\u003ch3\u003e\u003cb\u003eProduct Overview\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eHoneywell 2MLI-D22A\u003c\/span\u003e\u003c\/strong\u003e is a 16-point digital input module for the \u003cstrong\u003eMasterLogic-200 PLC Series\u003c\/strong\u003e. It receives 24V DC signals from industrial field devices and transfers their status to the PLC controller.\u003c\/p\u003e\n\n\u003cp\u003eThis module supports both \u003cstrong\u003ecurrent source and current sink input configurations\u003c\/strong\u003e. It provides a practical interface for connecting switches, sensors, and other discrete field signals.\u003c\/p\u003e\n\n\u003cp\u003eIts industrial environmental specifications support installation in controlled automation cabinets. The module operates within a temperature range of \u003cstrong\u003e0°C to 55°C\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e2MLI-D22A\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMasterLogic-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Input Points\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent source \/ current sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to 55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-25°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo corrosive gases or dust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Installation Altitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBelow 2,000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContamination Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBelow 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cb\u003eInput Functions and Engineering Features\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16-Point Signal Acquisition:\u003c\/strong\u003e Monitors up to 16 discrete input signals through one module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24V DC Input:\u003c\/strong\u003e Interfaces with industrial field devices using a 24V DC signal supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource and Sink Support:\u003c\/strong\u003e Supports current source and current sink input configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLC Signal Integration:\u003c\/strong\u003e Transfers field input states into the MasterLogic-200 control system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact I\/O Architecture:\u003c\/strong\u003e Consolidates multiple discrete signals within one PLC module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Environmental Range:\u003c\/strong\u003e Supports operation in environments from 0°C to 55°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003eTypical Industrial Applications\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Automation:\u003c\/strong\u003e Monitors limit switches, selector switches, and equipment status contacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction Lines:\u003c\/strong\u003e Collects discrete signals from sensors and machine interlocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control:\u003c\/strong\u003e Monitors valve positions, pump feedback, and equipment operating states.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Receives conveyor status and position detection signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilding Automation:\u003c\/strong\u003e Collects dry-contact status signals from compatible field devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Equipment:\u003c\/strong\u003e Integrates discrete field signals into centralized PLC logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003eInstallation Guidelines\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003col\u003e\n\u003cli\u003eVerify the module model and MasterLogic-200 system compatibility.\u003c\/li\u003e\n\u003cli\u003eConfirm the rack configuration and available installation position.\u003c\/li\u003e\n\u003cli\u003eDisconnect system power before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eCheck the field device voltage and source or sink wiring arrangement.\u003c\/li\u003e\n\u003cli\u003eVerify terminal assignments against the official wiring documentation.\u003c\/li\u003e\n\u003cli\u003eInstall the module securely in the designated rack position.\u003c\/li\u003e\n\u003cli\u003eInspect wiring polarity and terminal connections before energizing the system.\u003c\/li\u003e\n\u003cli\u003eConfirm the PLC recognizes all configured input points.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003e\u003cb\u003eCommissioning and Maintenance\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Verification:\u003c\/strong\u003e Activate each field device and check its corresponding PLC input status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Inspection:\u003c\/strong\u003e Measure the field supply voltage before connecting input circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Inspection:\u003c\/strong\u003e Check polarity, terminal tightness, and common connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic Testing:\u003c\/strong\u003e Verify input addressing and PLC program assignments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Diagnosis:\u003c\/strong\u003e Compare field device states with PLC input monitoring results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Inspection:\u003c\/strong\u003e Keep the installation free from condensation, corrosive gases, and dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreventive Maintenance:\u003c\/strong\u003e Inspect terminal connections and cabinet conditions periodically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003eCompatibility Considerations\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e2MLI-D22A\u003c\/span\u003e\u003c\/strong\u003e belongs to the Honeywell MasterLogic-200 PLC platform.\u003c\/li\u003e\n\u003cli\u003eUse compatible MasterLogic-200 racks and system components.\u003c\/li\u003e\n\u003cli\u003eMatch the field device output type with the module's source or sink input configuration.\u003c\/li\u003e\n\u003cli\u003eVerify the 24V DC supply and wiring arrangement before commissioning.\u003c\/li\u003e\n\u003cli\u003eCheck PLC hardware configuration and input addressing during system expansion.\u003c\/li\u003e\n\u003cli\u003eConfirm the exact module revision and system requirements before replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cb\u003eEnvironmental and Compliance Information\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe module specifies operating and storage limits for temperature and humidity. Its installation environment must remain free from corrosive gases and dust.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 55°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -25°C to +70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5% to 95% RH, non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAltitude:\u003c\/strong\u003e Below 2,000 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContamination:\u003c\/strong\u003e Below level 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSpecific EMC, electrical safety, and hazardous-area certification details were not included in the supplied specifications. Please request the applicable manufacturer documentation for project compliance verification.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003ePackaging and Supply Information\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Honeywell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Model:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e2MLI-D22A\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e MasterLogic-200 Digital Input Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New \u0026amp; Original in Factory Packing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Factory Warranty: 12 Months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Options:\u003c\/strong\u003e FedEx, UPS, and DHL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e One 2MLI-D22A digital input module. Additional accessories depend on the confirmed order configuration. Please verify the included terminal accessories before installation.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003eGlobal PLC Spare HUB – Engineering Insight\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e2MLI-D22A\u003c\/span\u003e\u003c\/strong\u003e provides 16 digital input channels for 24V DC field signal acquisition. Its source and sink input support offers flexibility when integrating different field wiring arrangements.\u003c\/p\u003e\n\n\u003cp\u003eDuring module selection, engineers should verify the field device output type, common wiring arrangement, and input voltage. Source and sink compatibility must match the actual circuit design.\u003c\/p\u003e\n\n\u003cp\u003eFor replacement projects, check the original I\/O configuration and terminal assignments. This step helps reduce wiring errors and commissioning delays.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions (FAQ)\u003c\/b\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ1: What is the primary function of the Honeywell 2MLI-D22A?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe module receives 24V DC discrete signals from field devices. It provides 16 input points for MasterLogic-200 PLC signal monitoring.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: What is the difference between source and sink input wiring?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSource and sink describe the direction of current flow within a DC circuit. Engineers must match the field device output arrangement with the module wiring requirements. Always check the official wiring diagram before connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: Can the 2MLI-D22A operate in high-humidity industrial environments?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIt supports 5% to 95% relative humidity without condensation. Prevent water droplets and moisture accumulation inside the control cabinet. Maintain suitable ventilation and cabinet protection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4: What should engineers check when an input signal does not appear in the PLC?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFirst, measure the field supply voltage. Then inspect polarity, common connections, and terminal wiring. Check the PLC input address and field device operation. Compare the physical signal with the software monitoring status.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5: How can buyers select the correct replacement for an existing digital input module?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eConfirm the complete model number and MasterLogic-200 platform. Check the input voltage, channel count, source or sink arrangement, and environmental requirements. Provide the existing module label and system configuration when requesting a quotation.\u003c\/p\u003e\n","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":68027726495926,"sku":"2MLI-D22A","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/2MLI-D22A-1.jpg?v=1794279073","url":"https:\/\/www.plcsparehub.com\/products\/honeywell-2mli-d22a-masterlogic-200-16-point-dc-input-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}