{"product_id":"allen-bradley-1791-ob16-block-i-o-dc-output-module","title":"Allen-Bradley 1791-OB16 Block I\/O DC Output Module","description":"\u003ch2\u003eAllen-Bradley 1791-OB16 Block I\/O DC Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1791-OB16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1791-OB16\u003c\/strong\u003e Block I\/O DC Output Module, operates as a dedicated hardware component for discrete DC output control within Allen-Bradley 1791 Block I\/O Remote I\/O platforms. The module provides 16 sourcing output channels with 24 VDC operation.\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\u003e1791-OB16\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in available technical data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003e1791 Block I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDC Output Block I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e16 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDC sourcing outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Output Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10-30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal DC Power Range\u003c\/td\u003e\n\u003ctd\u003e19.2-30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current (Vertical)\u003c\/td\u003e\n\u003ctd\u003e500 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current (Horizontal)\u003c\/td\u003e\n\u003ctd\u003e250 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum On-State Current\u003c\/td\u003e\n\u003ctd\u003e1.0 mA per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e0.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Link\u003c\/td\u003e\n\u003ctd\u003eUniversal Remote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet and EtherNet\/IP Deterministic Network Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1791-OB16 applies Allen-Bradley industrial I\/O architecture for discrete output distribution and Remote I\/O communication. The module supports I\/O density scaling by combining 16 DC output channels in a compact Block I\/O assembly.\u003c\/p\u003e\n\u003cp\u003eIntegration with PLC control platforms requires verification of controller communication settings, Remote I\/O addressing, and firmware flash compatibility between connected devices. The output interface provides sourcing DC switching capability for field devices connected through the 1791 Block I\/O system.\u003c\/p\u003e\n\u003cp\u003eThe module design supports deterministic data exchange through the Universal Remote I\/O (RIO) communication link. Proper configuration of network parameters and field wiring is required for correct output state execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many output channels are provided by the 1791-OB16?\u003cbr\u003eA: The module provides 16 DC output channels.\u003c\/p\u003e\n\u003cp\u003eQ: What is the nominal operating output voltage of the 1791-OB16?\u003cbr\u003eA: The module operates with a nominal output voltage of 24 VDC and supports a 10-30 VDC output voltage range.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interface is used by the 1791-OB16?\u003cbr\u003eA: The module communicates through the Universal Remote I\/O (RIO) interface.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1791-OB16 according to the mechanical requirements of the Block I\/O mounting system. Confirm the external DC power supply range and verify output wiring before applying power to connected field devices.\u003c\/p\u003e\n\u003cp\u003eRoute Remote I\/O communication cables separately from power conductors to minimize electrical interference. Maintain correct terminal identification and follow the system grounding requirements for DC control circuits.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify Remote I\/O configuration, output addressing, and individual channel operation. Check connected loads against the specified output current limitations for the selected mounting orientation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43763150651482,"sku":"1791-OB16","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1791-OB162.jpg?v=1785398442","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1791-ob16-block-i-o-dc-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}