{"product_id":"allen-bradley-1771-oc-plc-5-digital-dc-output-module","title":"Allen-Bradley 1771-OC PLC-5 Digital DC Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OC PLC-5 Digital DC Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OC\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-OC\u003c\/strong\u003e Digital DC Output Module, operates as a dedicated hardware component for DC load switching within PLC-5 I\/O chassis platforms. It provides eight sourcing output channels with direct voltage control for connected field devices.\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-OC\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\u003e1.23 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e32 to 140 deg F (0 to 60 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.9 to 16.9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 sourcing DC outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e10-60 VDC source output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e42-53 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Current Per Output\u003c\/td\u003e\n\u003ctd\u003e1.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Current Per Module\u003c\/td\u003e\n\u003ctd\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e165 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eBDC or Natural Binary\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\u003eMounting Style\u003c\/td\u003e\n\u003ctd\u003eRack mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eConformal coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOpto-electrical isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESD Immunity\u003c\/td\u003e\n\u003ctd\u003e4 kV contact discharge, 8 kV air discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical DC Signal Delay\u003c\/td\u003e\n\u003ctd\u003e50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Interface and PLC-5 Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OC provides DC sourcing output switching for PLC-5 control architectures. Its rack-mounted design supports installation within compatible 1771 I\/O chassis assemblies. The module uses backplane communication for output data transfer and supports BDC or Natural Binary data formats.\u003c\/p\u003e\n\u003cp\u003eThe module follows Allen-Bradley PLC-5 I\/O density scaling principles by providing multiple discrete output points in a single rack position. Firmware compatibility and controller configuration must match the selected PLC-5 hardware revision for correct module recognition and operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of field signals can the 1771-OC control?\u003cbr\u003eA: The 1771-OC provides 8 sourcing DC output channels designed for switching DC loads within the specified voltage and current limits.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane current requirement of the 1771-OC?\u003cbr\u003eA: The module requires 165 mA from the 1771 chassis backplane supply.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module include electrical protection features?\u003cbr\u003eA: The module includes opto-electrical isolation, conformal coating, and ESD immunity specifications for electrical noise and discharge protection.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OC module only in compatible 1771 I\/O chassis positions according to PLC-5 system configuration requirements. Verify output wiring polarity before connecting field devices because the module operates as a sourcing DC output device.\u003c\/p\u003e\n\u003cp\u003eUse the specified 1771-WH wiring arm for field termination. Route DC output wiring separately from high-voltage AC conductors and high-noise signal cables. Maintain proper cabinet grounding practices, and connect cable shields according to the system grounding design.\u003c\/p\u003e\n\u003cp\u003eConfirm the load current requirements of connected solenoids, relays, lamps, or other DC devices before energizing the outputs. Avoid exceeding individual channel and total module current ratings.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43686173671514,"sku":"1771-OC","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OC2.jpg?v=1784618836","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-oc-plc-5-digital-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}