{"product_id":"1771-noc-allen-bradley-analog-output-module","title":"1771-NOC Allen Bradley Analog Output Module","description":"\u003ch2\u003eAllen Bradley 1771-NOC N-Series Analog I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen Bradley 1771-NOC\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-NOC\u003c\/strong\u003e N-Series Analog I\/O Module, operates as a dedicated hardware component for isolated current output processing within PLC-5 control systems. The module provides eight analog current outputs with BDC or Natural Binary data formatting and interfaces with 1771 chassis backplane 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\u003e1771-NOC\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\u003e1.75 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current: 2.9 A at 20 mA\/output; 3.3 A at 25 mA\/output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eN-Series Analog I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e0 Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Current Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Range\u003c\/td\u003e\n\u003ctd\u003e0-25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Resolution\u003c\/td\u003e\n\u003ctd\u003e3.20 microamperes\/bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Data Format\u003c\/td\u003e\n\u003ctd\u003eBDC or Natural Binary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRTP Compatibility\u003c\/td\u003e\n\u003ctd\u003eUnfused 1771-RTP4; Fused 1771-RTP3\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\u003eTypical AC Signal Delay (Off)\u003c\/td\u003e\n\u003ctd\u003e45 +\/- 15 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical DC Signal Delay (Off)\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 Analog Current Output Processing\u003c\/h3\u003e\n\u003cp\u003eThe 1771-NOC module provides eight isolated analog current output channels for PLC-5 I\/O chassis applications. Each output channel supports a 0-25 mA current range with high-resolution digital conversion. The module receives output data through the PLC-5 backplane bus and converts controller data into analog current signals.\u003c\/p\u003e\n\u003cp\u003eThe module supports BDC and Natural Binary data formats for compatibility with PLC-5 processor configurations. Output wiring is connected through the 1771-WH wiring arm with optional fused or unfused remote termination panel selections.\u003c\/p\u003e\n\u003cp\u003eThe 1771-NOC uses PLC-5 backplane communication for data transfer. Backplane current loading varies according to the connected output current level, requiring chassis power supply evaluation during system configuration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many analog output channels are available on the 1771-NOC module?\u003cbr\u003eA: The 1771-NOC provides eight isolated current output channels with a 0-25 mA output range.\u003c\/p\u003e\n\u003cp\u003eQ: Which data formats are supported by the 1771-NOC?\u003cbr\u003eA: The module supports BDC and Natural Binary data formats for PLC-5 controller data exchange.\u003c\/p\u003e\n\u003cp\u003eQ: What backplane current is required by the module?\u003cbr\u003eA: The module requires 2.9 A backplane current at 20 mA per output and 3.3 A at 25 mA per output.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-NOC module in a compatible PLC-5 1771 I\/O chassis slot and verify chassis power capacity before commissioning. Confirm wiring arm compatibility with the 1771-WH connection system.\u003c\/p\u003e\n\u003cp\u003eUse shielded analog signal wiring where required by the application environment. Connect cable shields according to site grounding practices to reduce electrical noise coupling. Separate analog current output wiring from high-voltage power conductors and high-frequency switching circuits.\u003c\/p\u003e\n\u003cp\u003eVerify output polarity, termination configuration, and remote termination panel selection before applying system power. Check PLC-5 configuration parameters to ensure the selected data format matches the module operating mode.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43684763467866,"sku":"1771-NOC","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-NOC2.jpg?v=1784615003","url":"https:\/\/www.plcmasters.com\/products\/1771-noc-allen-bradley-analog-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}