{"product_id":"honeywell-2mli-d22a-16-point-digital-input-module","title":"Honeywell 2MLI-D22A 16-Point Digital Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 2MLI-D22A\u003c\/strong\u003e is a \u003cstrong\u003e16-point digital input module\u003c\/strong\u003e designed for the \u003cstrong\u003eMasterLogic-200 (ML200)\u003c\/strong\u003e PLC platform. It supports both \u003cstrong\u003esink and source-type DC 24 V inputs\u003c\/strong\u003e, making it highly versatile for interfacing with a wide range of industrial sensors, switches, and field devices. With configurable response times, robust photo-coupler isolation, and individual LED indicators, the 2MLI-D22A ensures reliable signal acquisition in factory automation, building control, and energy systems.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 digital input channels\u003c\/strong\u003e with sink\/source flexibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC 24 V rated input\u003c\/strong\u003e with wide operating range (20.4–28.8 VDC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurable response time:\u003c\/strong\u003e 1 ms to 100 ms (default 3 ms)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhoto-coupler isolation\u003c\/strong\u003e — AC 560 V rms \/ 3 cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndividual LED indicators\u003c\/strong\u003e for real-time input status\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e18-point terminal block\u003c\/strong\u003e (M3 × 6 screw) for secure field wiring\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight — \u003cstrong\u003e120 g\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 2MLI-D22A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Digital Input Module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e MasterLogic-200\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 16 points\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e Sink \/ Source (DC 24 V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Input Voltage:\u003c\/strong\u003e DC 24 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e DC 20.4 V – 28.8 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn Voltage \/ Current:\u003c\/strong\u003e ≥ DC 19 V \/ ≥ 3 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOff Voltage \/ Current:\u003c\/strong\u003e ≤ DC 11 V \/ ≤ 1.7 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Resistance:\u003c\/strong\u003e Approx. 5.6 kΩ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e Configurable 1–100 ms; default 3 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Method:\u003c\/strong\u003e Photo-coupler isolation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e AC 560 V rms \/ 3 cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Resistance:\u003c\/strong\u003e ≥ 10 MΩ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon Method:\u003c\/strong\u003e 16 points per COM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Consumption:\u003c\/strong\u003e 30 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Indicator:\u003c\/strong\u003e LED ON when input is active\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eExternal Connection:\u003c\/strong\u003e 18-point terminal block (M3 × 6 screw)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Size:\u003c\/strong\u003e 0.3–0.75 mm² (twisted pair, ≤ 2.8 mm diameter)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressed Terminal:\u003c\/strong\u003e R1.25-3 (sleeve type not allowed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.12 kg\u003c\/li\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\u003eCertifications:\u003c\/strong\u003e CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory automation and production line monitoring\u003c\/li\u003e\n  \u003cli\u003eBuilding management and HVAC control\u003c\/li\u003e\n  \u003cli\u003eEnergy distribution and substation monitoring\u003c\/li\u003e\n  \u003cli\u003eSafety interlock and limit switch interfaces\u003c\/li\u003e\n  \u003cli\u003eProcess control pushbutton and selector switch inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 2MLI-D22A support both NPN (sink) and PNP (source) sensors?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eYes.\u003c\/strong\u003e The module accepts DC 24 V signals in either sink or source wiring configuration, providing maximum flexibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the default response time?\u003c\/strong\u003e\u003cbr\u003eA: The default is \u003cstrong\u003e3 ms\u003c\/strong\u003e, but it is configurable from \u003cstrong\u003e1 ms to 100 ms\u003c\/strong\u003e via the programming software to match application requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many inputs share a common terminal?\u003c\/strong\u003e\u003cbr\u003eA: All \u003cstrong\u003e16 points share one COM terminal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the module be hot-swapped?\u003c\/strong\u003e\u003cbr\u003eA: \u003cstrong\u003eNo.\u003c\/strong\u003e Module insertion or removal must be performed with the system fully de-energized.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What wire gauge is recommended?\u003c\/strong\u003e\u003cbr\u003eA: Use \u003cstrong\u003e0.3–0.75 mm² twisted pair\u003c\/strong\u003e cable with a maximum outer diameter of 2.8 mm. Sleeve-type compression terminals are not allowed.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Disconnect all power to the MasterLogic-200 rack before handling the module.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlot Installation:\u003c\/strong\u003e Insert the 2MLI-D22A into an available I\/O slot, ensuring the module is fully seated and retention clips engage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Wiring:\u003c\/strong\u003e Connect field devices to the 18-point terminal block. For sink wiring, connect the COM to 0 V; for source wiring, connect the COM to +24 V.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eCable Preparation:\u003c\/strong\u003e Strip wire insulation to 6–7 mm. Use R1.25-3 compression terminals (non-sleeve type). Torque M3 screws to 0.5–0.6 N·m.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResponse Time Setup:\u003c\/strong\u003e Open SoftMaster software and configure the input filter time (1–100 ms) based on your signal characteristics. Use shorter times for high-speed counting and longer times for noisy mechanical switches.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerification:\u003c\/strong\u003e Apply power and toggle each input. Confirm the corresponding LED illuminates and the PLC registers the input state correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSelect the \u003cstrong\u003e2MLI-D22A\u003c\/strong\u003e for \u003cstrong\u003e16-point DC 24 V digital input\u003c\/strong\u003e with flexible sink\/source wiring.\u003c\/li\u003e\n  \u003cli\u003eIf you need \u003cstrong\u003emore input density\u003c\/strong\u003e, consider the \u003cstrong\u003e2MLI-D28A\u003c\/strong\u003e (64-point) or \u003cstrong\u003e2MLI-D24A\u003c\/strong\u003e (32-point) modules.\u003c\/li\u003e\n  \u003cli\u003eFor \u003cstrong\u003eAC voltage inputs\u003c\/strong\u003e, evaluate the \u003cstrong\u003e2MLI-A21A\u003c\/strong\u003e or \u003cstrong\u003e2MLI-A12A\u003c\/strong\u003e AC input modules.\u003c\/li\u003e\n  \u003cli\u003eVerify sensor output type (NPN vs. PNP) before wiring to ensure correct sink\/source configuration.\u003c\/li\u003e\n  \u003cli\u003eFor noisy industrial environments, use \u003cstrong\u003eshielded twisted-pair cable\u003c\/strong\u003e and maintain separation from high-voltage power cables.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53959450689720,"sku":"2MLI-D22A","price":146.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/2MLI-D22A_1__Co.png?v=1787197558","url":"https:\/\/www.globalpetroparts.com\/products\/honeywell-2mli-d22a-16-point-digital-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}