{"product_id":"1771-od16-a-allen-bradley-digital-output-module","title":"1771-OD16\/A Allen-Bradley Digital Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OD16\/A PLC-5 DC Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for DC load switching in PLC-5 I\/O rack systems, the \u003cstrong\u003eAllen-Bradley 1771-OD16\/A\u003c\/strong\u003e (\u003cstrong\u003e1771-OD16\u003c\/strong\u003e DC Output Module) provides 16 individually fused sinking outputs for direct control of 10-60 VDC field devices. The module executes discrete electrical output functions through optically isolated channels with per-point diagnostic indication.\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-OD16\/A\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\u003e1.8 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O rack module format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e20 W maximum dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDC Sinking 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\u003eMaximum Current per Output\u003c\/td\u003e\n\u003ctd\u003e2 A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Module Current\u003c\/td\u003e\n\u003ctd\u003e16 A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current Capability\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 Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Method\u003c\/td\u003e\n\u003ctd\u003eIndividually fused outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eOutput and fuse status LED indicators\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 I\/O Control Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OD16\/A operates as a discrete output interface within the Allen-Bradley PLC-5 architecture. Its 16 output channels provide individual electrical switching paths for DC field loads. The module communicates with the PLC processor through the 1771 backplane bus, with output commands transferred through the I\/O rack structure.\u003c\/p\u003e\n\u003cp\u003eThe optically isolated output design separates field-side switching circuits from internal controller electronics. Each output channel includes individual fuse protection and LED status indication for channel-level fault identification. The module supports sinking output operation, where connected loads are switched toward ground potential.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of loads can the 1771-OD16\/A control?\u003cbr\u003eA: The module controls DC loads including solenoids, relays, pilot lights, and annunciator devices within the 10-60 VDC output range.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module provide electrical isolation between field wiring and the PLC system?\u003cbr\u003eA: Yes. The output channels use optical isolation to separate field-side circuits from the PLC-5 backplane interface.\u003c\/p\u003e\n\u003cp\u003eQ: What protection is provided for individual output channels?\u003cbr\u003eA: Each output channel includes individual fuse protection to limit damage from overload and short-circuit conditions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OD16\/A in a compatible PLC-5 1771 I\/O chassis with correct rack addressing configuration. Connect field wiring through the specified 1771-WH wiring arm and verify terminal assignments before energizing external loads.\u003c\/p\u003e\n\u003cp\u003eRoute DC output wiring separately from high-voltage AC conductors and high-current switching cables to reduce electrical noise coupling. Connect cable shields according to plant grounding standards, normally bonding shields at the designated control cabinet grounding point.\u003c\/p\u003e\n\u003cp\u003eVerify load current requirements before operation. Each output channel must remain within the specified current rating, and the total module load must remain within the aggregate current limit. Confirm fuse status indicators and output diagnostics during commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43686822936666,"sku":"1771-OD16\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OD161.jpg?v=1784619170","url":"https:\/\/www.plcmasters.com\/products\/1771-od16-a-allen-bradley-digital-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}