{"product_id":"1771-noc-allen-bradley-plc-5-1771-analog-output-module","title":"1771-NOC Allen-Bradley PLC-5 1771 Analog Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-NOC\u003c\/strong\u003e (\u003cstrong\u003e1771NOC\u003c\/strong\u003e PLC-5 Analog Output Module) provides eight isolated 4-20 mA current outputs for high-resolution analog signal generation within a 1771 I\/O system.\u003c\/p\u003e\n\u003ch3\u003eCatalog References\u003c\/h3\u003e\n\u003cp\u003eThe supplied catalog information identifies 1771-NOC as a PLC-5 high-resolution analog output module. Listed alternate references are 1771-NOC\/A, 1771-NOC\/B, and 1771-NOC\/C. The supplied data does not define the functional differences between these revisions.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003eAlternate Model\u003c\/td\u003e\n\u003ctd\u003e1771NOC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRevision References\u003c\/td\u003e\n\u003ctd\u003e1771-NOC\/A, 1771-NOC\/B, 1771-NOC\/C\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e1771\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eHigh-Resolution Analog Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Isolation\u003c\/td\u003e\n\u003ctd\u003eIsolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003eHigh resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Points\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.68 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.2 x 15.5 x 25.5 cm\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\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8538907080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued 05\/31\/2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eAnalog Current Output Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-NOC provides eight isolated analog output channels, with each channel specified for a 4-20 mA current signal. The module is identified as a high-resolution analog output device for the PLC-5 1771 I\/O platform.\u003c\/p\u003e\n\u003cp\u003eThe supplied information does not state individual channel accuracy, resolution in bits, load resistance, output update time, calibration method, or channel-to-channel isolation rating. These values are therefore not inferred.\u003c\/p\u003e\n\u003cp\u003eFor field wiring, each 4-20 mA circuit should be treated as an analog instrumentation loop. Signal conductors should be routed separately from high-current switching and motor wiring where practical to reduce electrical interference.\u003c\/p\u003e\n\u003ch3\u003eOrdering Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1771-NOC Analog Output Module\u003c\/li\u003e\n\u003cli\u003eCatalog reference: 1771NOC\u003c\/li\u003e\n\u003cli\u003e8 x isolated 4-20 mA analog outputs\u003c\/li\u003e\n\u003cli\u003eAlternate catalog references: 1771-NOC\/A, 1771-NOC\/B, 1771-NOC\/C\u003c\/li\u003e\n\u003cli\u003eCompatible 1771 chassis and field wiring accessories are not specified as included\u003c\/li\u003e\n\u003cli\u003eExternal loop devices and field power supplies are not identified as included components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Wiring Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eModule Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify compatibility with the installed 1771 I\/O chassis before insertion.\u003c\/li\u003e\n\u003cli\u003eInspect the module connector and chassis interface for contamination or mechanical damage.\u003c\/li\u003e\n\u003cli\u003eInstall the module according to the applicable 1771 system procedure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog Signal Wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse suitable twisted-pair instrumentation wiring for 4-20 mA circuits.\u003c\/li\u003e\n\u003cli\u003eKeep analog signal wiring away from motor leads, contactors, and other high-current conductors.\u003c\/li\u003e\n\u003cli\u003eAvoid unnecessary cable loops and excessive parallel routing with switching circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShielding and Grounding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply the field instrument grounding arrangement specified by the system design.\u003c\/li\u003e\n\u003cli\u003eGround cable shields according to the installation documentation to avoid unintended ground-current paths.\u003c\/li\u003e\n\u003cli\u003eDo not connect signal shields at multiple points unless the system grounding design explicitly requires it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify loop polarity before energizing each output circuit.\u003c\/li\u003e\n\u003cli\u003eCheck field device compatibility with the 4-20 mA signal range.\u003c\/li\u003e\n\u003cli\u003eConfirm the PLC output configuration before placing the analog channels into service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many analog outputs does the 1771-NOC provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe supplied specification identifies 8 analog output points. Each output is specified as an isolated 4-20 mA current output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat signal does the module generate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module generates 4-20 mA analog current signals. The supplied data does not specify additional voltage output modes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAre the outputs isolated?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The supplied product description explicitly identifies the 8 current outputs as isolated. The isolation rating is not provided.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module high resolution?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The supplied product information identifies the device as a PLC-5 high-resolution analog output module, but no bit resolution is stated.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the module weight?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe listed product weight is 0.68 kg. The supplied shipping dimensions are 3.2 x 15.5 x 25.5 cm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs power consumption specified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The supplied technical information does not provide a power consumption or backplane current value, so no numerical value is assigned.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the module be hot swapped?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHot-swap capability is not confirmed by the supplied information. Installation and removal should follow the applicable 1771 system procedure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat operating temperature is specified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo operating temperature range is included in the supplied data. The applicable Allen-Bradley documentation should be consulted for environmental limits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066443813037,"sku":"1771-NOC","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1771-NOC_1-0.jpg?v=1786348092","url":"https:\/\/www.maxwellplc.com\/products\/1771-noc-allen-bradley-plc-5-1771-analog-output-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}