{"product_id":"allen-bradley-1791-oa16-block-i-o-discrete-output-module","title":"Allen-Bradley 1791-OA16 Block I\/O Discrete Output Module","description":"\u003ch2\u003eAllen-Bradley 1791-OA16 Block I\/O Discrete Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1791-OA16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1791-OA16\u003c\/strong\u003e Block I\/O Discrete Output Module, operates as a dedicated hardware component for AC output switching within PLC-2, PLC-3, PLC-5 family, and SLC control platforms using Remote I\/O communication.\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-OA16\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\u003e1.15 lbs\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\u003eDiscrete Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Groups\u003c\/td\u003e\n\u003ctd\u003e2 groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs per Group\u003c\/td\u003e\n\u003ctd\u003e8 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Output Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e20-132 VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e600 mA maximum at 30 deg C vertical mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e300 mA maximum at 60 deg C vertical mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorizontal Output Rating\u003c\/td\u003e\n\u003ctd\u003e300 mA maximum at 30 deg C, 150 mA maximum at 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eRemote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRIO Cable\u003c\/td\u003e\n\u003ctd\u003eBelden 9463\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminating Resistor\u003c\/td\u003e\n\u003ctd\u003e150 Ohms; 82 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Controllers\u003c\/td\u003e\n\u003ctd\u003ePLC-2, PLC-3, PLC-5\/250, PLC-5, SLC 5\/02 modular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eRemote I\/O and Control Platform Communication\u003c\/h3\u003e\n\u003cp\u003eThe 1791-OA16 uses Allen-Bradley Remote I\/O communication architecture for discrete output control and integrates with PLC controller platforms through an RIO adapter interface. The module supports industrial control network configuration with controller-side addressing and remote output data exchange.\u003c\/p\u003e\n\u003cp\u003eThe module architecture supports I\/O density scaling by combining 16 AC output channels into a single Block I\/O assembly. Firmware flash compatibility and controller configuration parameters must be verified when integrating the module into existing PLC systems.\u003c\/p\u003e\n\u003cp\u003eThe output circuitry provides two isolated output groups, each containing eight channels. The AC switching outputs are designed for connection to field actuators and discrete loads within the specified voltage and current ranges.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many output channels are available on the 1791-OA16?\u003cbr\u003eA: The module provides 16 AC output channels arranged into two groups of eight outputs each.\u003c\/p\u003e\n\u003cp\u003eQ: Which communication interface is supported by the 1791-OA16?\u003cbr\u003eA: The module supports Allen-Bradley Remote I\/O (RIO) communication through an adapter mode interface.\u003c\/p\u003e\n\u003cp\u003eQ: Which controller platforms can communicate with this module?\u003cbr\u003eA: The module is specified for use with PLC-2, PLC-3, PLC-5\/250, PLC-5 family controllers, and SLC 5\/02 modular controllers.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1791-OA16 according to the mechanical requirements of the Block I\/O mounting environment. Verify AC supply wiring, output terminal assignments, and RIO communication connections before applying power.\u003c\/p\u003e\n\u003cp\u003eRoute RIO communication cables separately from high-voltage AC wiring to reduce electrical interference. Use the specified communication cable type and install terminating resistors according to the network configuration requirements.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify controller addressing, RIO adapter configuration, and each output channel response under controlled test conditions. Confirm connected field loads remain within the specified output voltage and current limits.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43763135709274,"sku":"1791-OA16","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1791-OA162.jpg?v=1785398084","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1791-oa16-block-i-o-discrete-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}