{"product_id":"2mli-d22a-honeywell-masterlogic-200-digital-input-module","title":"2MLI-D22A | Honeywell | MasterLogic-200 Digital Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 2MLI-D22A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e2MLI-D22A\u003c\/strong\u003e Digital Input Module, operates as a dedicated hardware component for discrete field signal processing within MasterLogic-200 PLC platforms. It connects up to 16 digital field channels operating at 24 VDC nominal, executing physical signal acquisition via sink or source wiring configurations to route input states to the CPU backplane bus.\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-D22A\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\u003e0.22 lbs (0.10 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 (System Bus Load Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 Points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput 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\u003eVDC Logic I\/O Module\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 Process Telemetry\u003c\/h3\u003e\n\u003cp\u003eThe 2MLI-D22A incorporates optocoupler isolation circuits between field wiring terminals and backplane logic interfaces. This structural channel-to-channel isolation barrier isolates 24 VDC field instrument signals from the backplane CPU data paths, preventing ground loop currents and high-voltage field spikes from corrupting digital state memory. Electrical separation across field-side logic circuits ensures interference-free processing alongside 4-20 mA HART loop protocol transmitters and analog instrumentation connected to adjacent DCS cards.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 2MLI-D22A support both sinking and sourcing field input connections?\u003c\/p\u003e\n\u003cp\u003eA: Yes, internal circuitry supports both sink and source wiring topologies by alternating the common terminal return path to 0 VDC or 24 VDC according to field sensor specifications.\u003c\/p\u003e\n\u003cp\u003eQ: Is hot-swapping supported for the 2MLI-D22A while the rack is under power?\u003c\/p\u003e\n\u003cp\u003eA: De-energize the base rack chassis power supply before inserting or removing the 2MLI-D22A module to prevent electrical arcing across backplane pins and memory parity faults in the CPU.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eIsolate main power feeds to the base rack chassis and external 24 VDC field loops prior to module installation.\u003c\/li\u003e\n\u003cli\u003eSeat the 2MLI-D22A firmly into its designated backplane slot until the top and bottom locking levers snap into place.\u003c\/li\u003e\n\u003cli\u003eWire field inputs using recommended copper wire gauges and verify correct polarity setup for sink or source configuration at the terminal block.\u003c\/li\u003e\n\u003cli\u003eSeparate 24 VDC discrete signal wiring from AC power lines inside control raceways to avoid induced electromagnetic noise.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53599188517173,"sku":"2MLI-D22A","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/2MLI-D22A_Cocoai.png?v=1789611376","url":"https:\/\/www.5gplc.com\/products\/2mli-d22a-honeywell-masterlogic-200-digital-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}