{"product_id":"allen-bradley-1771-obn-plc-5-digital-dc-output-module","title":"Allen-Bradley 1771-OBN PLC-5 Digital DC Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OBN PLC-5 Digital DC Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for DC voltage output signal termination in PLC-5 I\/O chassis, the \u003cstrong\u003eAllen-Bradley 1771-OBN\u003c\/strong\u003e (\u003cstrong\u003e1771-OBN\u003c\/strong\u003e Digital DC Output Module) provides direct physical\/electrical execution through 32 high-true sourcing output channels. The module supports 10-30 VDC operating voltage and interfaces with 1771 rack-based control architectures.\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-OBN\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\u003e2.01 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current 330 mA\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\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSourcing output module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e32 outputs (4 sets of 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eHigh-true sourcing DC output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e10-30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e10-60 VDC source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Per Output\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Per Output Set\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Module Current\u003c\/td\u003e\n\u003ctd\u003e8 A\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\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eBDC or Natural Binary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eRack mountable\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\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\u003ePLC-5 Backplane and I\/O Signal Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OBN uses PLC-5 rack communication through the 1771 I\/O chassis backplane. The module provides I\/O density scaling with 32 sourcing outputs arranged as four groups of eight channels. The 330 mA backplane current requirement defines the chassis power loading for module operation.\u003c\/p\u003e\n\u003cp\u003eThe output interface supports DC actuator connections including discrete loads controlled by PLC logic. Current limiting characteristics and conformal coating are included in the module construction for electrical protection within the specified installation environment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What output signal type does the 1771-OBN provide?\u003cbr\u003eA: The 1771-OBN provides 32 high-true sourcing DC output channels operating with 10-30 VDC field voltage.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane current requirement of the module?\u003cbr\u003eA: The module requires 330 mA backplane current from the PLC-5 1771 I\/O chassis.\u003c\/p\u003e\n\u003cp\u003eQ: What chassis mounting configuration is supported?\u003cbr\u003eA: The 1771-OBN is designed for rack mounting in compatible 1771 I\/O chassis systems.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OBN module into a compatible 1771 I\/O chassis slot and verify rack power capacity before operation. Use the specified 1771-WH wiring arm for field connections.\u003c\/p\u003e\n\u003cp\u003eRoute DC output wiring separately from high-voltage AC conductors and high-noise signal cables. Connect field wiring with correct polarity for sourcing outputs and verify load current requirements against channel and module current ratings.\u003c\/p\u003e\n\u003cp\u003eMaintain proper grounding practices for the chassis and cable shielding where applicable. Inspect terminal connections, module seating, and keying positions before applying system power.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43685693816922,"sku":"1771-OBN","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OBN2.jpg?v=1784618408","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-obn-plc-5-digital-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}