{"product_id":"allen-bradley-1771-omd-b-dc-output-module","title":"Allen-Bradley 1771-OMD\/B DC Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OMD\/B DC Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OMD\/B\u003c\/strong\u003e (\u003cstrong\u003e1771-OMD\u003c\/strong\u003e DC Output Module) operates as a dedicated hardware component for DC load switching within the PLC-5 1771 I\/O system. The module provides 16 sinking output channels for 10-60 VDC field devices with individual output protection and optical isolation.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e1771-OMD\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.85 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e20 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePLC-5 1771 I\/O Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 sinking outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10-60 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Current per Output\u003c\/td\u003e\n\u003ctd\u003e2 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Current per Module\u003c\/td\u003e\n\u003ctd\u003e16 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e4 A for 10 ms, repeatable every 1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e1 mA per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e2 VDC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurn-On\/Off Delay\u003c\/td\u003e\n\u003ctd\u003eApproximately 10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e350 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V AC rms tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e68 BTU\/hr maximum, 5.1 BTU\/hr minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, c-UL Class I Division 2 Hazardous Locations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and PLC-5 Deterministic Output Control Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OMD\/B is designed for integration with Allen-Bradley PLC-5 control platforms through the 1771 I\/O backplane communication structure. The module provides I\/O density scaling with 16 sinking output points and supports direct control of DC field loads through PLC-generated output commands.\u003c\/p\u003e\n\u003cp\u003eThe output circuit design includes individually fused channels, optical isolation, and diagnostic LED indicators for channel and fuse status monitoring. The module architecture maintains PLC-5 deterministic I\/O operation by transferring output data through the established rack-based backplane interface.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What output configuration is provided by the 1771-OMD\/B module?\u003cbr\u003eA: The module provides 16 sinking DC output channels for connection to 10-60 VDC field loads.\u003c\/p\u003e\n\u003cp\u003eQ: What protection features are integrated into each output channel?\u003cbr\u003eA: Each output channel includes individual fuse protection for overload and short-circuit conditions.\u003c\/p\u003e\n\u003cp\u003eQ: What backplane power requirement is specified for the module?\u003cbr\u003eA: The module requires 350 mA from the 5 VDC PLC-5 backplane supply.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OMD\/B module in a compatible PLC-5 1771 I\/O chassis using the correct rack position and wiring arm connection. Verify field device voltage polarity and load current requirements before connecting external devices.\u003c\/p\u003e\n\u003cp\u003eUse appropriate DC control wiring methods and separate output signal cables from high-voltage power conductors to reduce electrical interference. Apply cable shielding and grounding practices according to the installation environment and control system standards.\u003c\/p\u003e\n\u003cp\u003eConfirm that each connected load remains within the specified per-channel and total module current limits. Check diagnostic indicators after startup to verify output channel operation and fuse status.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43688020246618,"sku":"1771-OMD\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OMDB_f646060c-2fa8-4d06-bb48-0a1e5c311209.jpg?v=1784620408","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-omd-b-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}