{"product_id":"allen-bradley-1746-no4i-module","title":"Allen-Bradley 1746-NO4I Analog Output Module Fast Shipping","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%);position:relative;overflow:hidden;color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:0 auto;padding-bottom:34px}.nxs-industrial-product-page 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.card:hover{transform:none}.nxs-industrial-product-page .section li{font-size:14px}.nxs-industrial-product-page .section:last-of-type\u003ep{padding:16px 14px 16px 48px;font-size:14px}.nxs-industrial-product-page .section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page *{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\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\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e1746-NO4I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAnalog Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Bulletin\u003c\/td\u003e\n\u003ctd\u003eBulletin 1746\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Current Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Output Channels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Input Channels\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Output Current Range\u003c\/td\u003e\n\u003ctd\u003e0-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-20mA Application Support\u003c\/td\u003e\n\u003ctd\u003eAchievable Through PLC Program Scaling Within the 0-20mA Hardware Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Overrange Capability\u003c\/td\u003e\n\u003ctd\u003e5%, Up to Approximately 21 mA Minus 1 LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Scale Current\u003c\/td\u003e\n\u003ctd\u003e21 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConverter Resolution\u003c\/td\u003e\n\u003ctd\u003e14-Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Resolution\u003c\/td\u003e\n\u003ctd\u003e2.56348 µA per LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Method\u003c\/td\u003e\n\u003ctd\u003eR-2R Ladder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonlinearity\u003c\/td\u003e\n\u003ctd\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Load Resistance\u003c\/td\u003e\n\u003ctd\u003e0-500 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Reactance\u003c\/td\u003e\n\u003ctd\u003e100 µH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e2.5 ms to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Update Time\u003c\/td\u003e\n\u003ctd\u003e512 µs for All Channels in Parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Output Coding\u003c\/td\u003e\n\u003ctd\u003e0 to 32764 for 0 to Approximately 21 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSLC Communication Format\u003c\/td\u003e\n\u003ctd\u003e16-Bit Two's Complement Binary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy at 25°C\u003c\/td\u003e\n\u003ctd\u003e±0.298% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy at 0-60°C\u003c\/td\u003e\n\u003ctd\u003e±0.541% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy Drift\u003c\/td\u003e\n\u003ctd\u003e±70 ppm\/°C of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain Error at 25°C\u003c\/td\u003e\n\u003ctd\u003e±0.298% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain Error at 0-60°C\u003c\/td\u003e\n\u003ctd\u003e±0.516% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOffset Error at 25°C\u003c\/td\u003e\n\u003ctd\u003e±10 LSB Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOffset Error at 0-60°C\u003c\/td\u003e\n\u003ctd\u003e±12 LSB Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channel Isolation\u003c\/td\u003e\n\u003ctd\u003eOutput Channels Are Not Individually Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Wiring to Backplane Isolation\u003c\/td\u003e\n\u003ctd\u003e500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw at 5VDC\u003c\/td\u003e\n\u003ctd\u003e55 mA Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw at 24VDC\u003c\/td\u003e\n\u003ctd\u003e195 mA Maximum When Powered Through the Backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply Option\u003c\/td\u003e\n\u003ctd\u003e24 VDC, Selectable Using Module Switch SW1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply Voltage Tolerance\u003c\/td\u003e\n\u003ctd\u003e21.6-26.4 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply Current Requirement\u003c\/td\u003e\n\u003ctd\u003e195 mA Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply Requirement\u003c\/td\u003e\n\u003ctd\u003eRequired for Certain SLC 500 Configurations; Verify Power Budget and Controller Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source Selection\u003c\/td\u003e\n\u003ctd\u003eInternal Backplane or External 24VDC via SW1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Controller Platform\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Location\u003c\/td\u003e\n\u003ctd\u003eCompatible Bulletin 1746 Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Slot Usage\u003c\/td\u003e\n\u003ctd\u003eOne Chassis I\/O Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Interface\u003c\/td\u003e\n\u003ctd\u003e1746 Backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Signal Cable\u003c\/td\u003e\n\u003ctd\u003eShielded Belden 8761 or Equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Field Wire Size\u003c\/td\u003e\n\u003ctd\u003e14 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block\u003c\/td\u003e\n\u003ctd\u003eRemovable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eFactory Calibrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5-95% Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial Noise Immunity Reference\u003c\/td\u003e\n\u003ctd\u003eNEMA ICS 2-230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Lifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscontinuation Date\u003c\/td\u003e\n\u003ctd\u003eApril 29, 2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Replacement Classification\u003c\/td\u003e\n\u003ctd\u003eEngineering Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Documentation\u003c\/td\u003e\n\u003ctd\u003e1746-UM005 User Manual; 1746-IN008 Installation Instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eFour Analog Current Output Channels\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1746-NO4I provides four analog current output channels for SLC 500 control systems. It converts PLC output data into current signals for compatible industrial field devices such as drive reference inputs, valve positioners and process controllers.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0-20mA Output and 4-20mA Scaling\u003c\/h3\u003e\n\u003cp\u003eThe module provides a normal hardware output range of 0-20 mA. Applications requiring 4-20 mA can use suitable PLC program scaling to operate within that range. The output hardware is current-only and cannot be changed into a voltage output through configuration.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e14-Bit Digital-to-Analog Conversion\u003c\/h3\u003e\n\u003cp\u003eIts 14-bit converter provides a documented output resolution of 2.56348 µA per LSB, with a 2.5 ms step response to 95%. These characteristics support proportional control and analog setpoint generation in compatible industrial applications.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eFlexible 24VDC Power Selection\u003c\/h3\u003e\n\u003cp\u003eThe 1746-NO4I can obtain its 24 VDC operating power from the compatible SLC backplane or a suitable external power supply, selected using switch SW1. External power is necessary in certain controller configurations and must satisfy the documented voltage tolerance.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eDirect SLC 500 Chassis Integration\u003c\/h3\u003e\n\u003cp\u003eThe module occupies one compatible 1746 chassis I\/O slot and communicates through the SLC backplane. A removable terminal block supports field wiring access for installation, inspection and maintenance.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eIndustrial Analog Signal Performance\u003c\/h3\u003e\n\u003cp\u003eThe module provides a 0-500 ohm output load range, 500 VDC field-to-backplane isolation and a documented operating temperature of 0°C to 60°C. Its four current outputs share the module's analog circuitry and are not individually isolated from one another.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog speed reference signals for compatible variable frequency drives\u003c\/li\u003e\n\u003cli\u003eProportional valve and industrial actuator command signals\u003c\/li\u003e\n\u003cli\u003eIndustrial process controller setpoint generation\u003c\/li\u003e\n\u003cli\u003eFlow and pressure control loops using compatible current-input devices\u003c\/li\u003e\n\u003cli\u003eTemperature regulation systems requiring analog command signals\u003c\/li\u003e\n\u003cli\u003eManufacturing equipment with SLC 500-based analog control\u003c\/li\u003e\n\u003cli\u003eIndustrial automation cabinet maintenance and analog output troubleshooting\u003c\/li\u003e\n\u003cli\u003eReplacement of compatible four-channel SLC 500 current output modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Allen-Bradley 1746-NO4I Analog Output Module. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Allen-Bradley 1746-NO4I?\u003c\/strong\u003e\u003cbr\u003eAllen-Bradley 1746-NO4I is a four-channel analog current output module for the SLC 500 PLC platform. It provides current signals to compatible industrial field devices using a normal output range of 0-20 mA.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow many analog output channels does 1746-NO4I provide?\u003c\/strong\u003e\u003cbr\u003eThe module provides four analog current output channels. It does not include analog input channels and occupies one compatible SLC 500 I\/O chassis slot.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the output signal range of 1746-NO4I?\u003c\/strong\u003e\u003cbr\u003eThe normal hardware output range is 0-20 mA, with a documented 5% overrange capability extending to approximately 21 mA. The module is designed for current output rather than voltage output applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan 1746-NO4I be used for 4-20mA control applications?\u003c\/strong\u003e\u003cbr\u003eYes. A 4-20 mA operating span can be implemented through the PLC program's analog output scaling. This does not change the module's underlying 0-20 mA hardware range. Correct scaling and fault-response behavior should be verified before commissioning.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 1746-NO4I and 1746-NO4V?\u003c\/strong\u003e\u003cbr\u003eThe 1746-NO4I provides four analog current outputs with a normal 0-20 mA range. The 1746-NO4V provides four analog voltage outputs with a -10 to +10 VDC range. They have different output electronics and wiring requirements and are not direct signal-type substitutes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the resolution of 1746-NO4I?\u003c\/strong\u003e\u003cbr\u003eThe current output converter has 14-bit resolution, corresponding to 2.56348 µA per LSB. The manufacturer also specifies a 2.5 ms step response to 95% and a 512 µs update time for all channels in parallel.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes 1746-NO4I require an external 24VDC power supply?\u003c\/strong\u003e\u003cbr\u003eThe module can use compatible 24 VDC backplane power or a user-supplied external 24 VDC source selected by switch SW1. External power is required for certain configurations, including use with a fixed SLC 500 controller as described in the manufacturer manual. The external supply must provide 21.6-26.4 VDC with adequate current capacity.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum output load resistance?\u003c\/strong\u003e\u003cbr\u003eRockwell Automation specifies an output load resistance range of 0-500 ohms and maximum load reactance of 100 µH. Field devices and loop wiring must remain within these limits.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eAre the four analog output channels individually isolated?\u003c\/strong\u003e\u003cbr\u003eNo. The four output channels are not individually isolated. The module provides 500 VDC isolation between field wiring and the SLC backplane, which is different from channel-to-channel isolation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan 1746-NO4I be installed in an SLC 500 chassis?\u003c\/strong\u003e\u003cbr\u003eYes. The 1746-NO4I is designed for compatible Bulletin 1746 SLC 500 chassis installations. Before installation, confirm the available I\/O slot, processor compatibility, power supply capacity, external power switch position and analog output addressing.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHas Allen-Bradley 1746-NO4I been discontinued?\u003c\/strong\u003e\u003cbr\u003eYes. Rockwell Automation lists the 1746-NO4I as discontinued effective April 29, 2021. Its replacement classification is Engineering Replacement, meaning a migration solution may require engineering changes rather than a direct module swap. Compatibility should be assessed against the existing PLC hardware and application.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering 1746-NO4I?\u003c\/strong\u003e\u003cbr\u003eVerify the exact catalog number 1746-NO4I, four-channel current output configuration, 0-20 mA output range, 14-bit resolution, 0-500 ohm load limits, 1746 chassis compatibility, 5 VDC and 24 VDC backplane power requirements, SW1 power source selection, external 24 VDC supply requirements, existing terminal block, field wiring, program scaling and the manufacturer's discontinued product status. For an existing machine, also confirm the SLC 500 program backup and module slot configuration before replacement.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67736020942927,"sku":"LL1-AB-1746NO4I","price":277.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/1746-NO4I-01.jpg?v=1792139567","url":"https:\/\/yunshuotrade.com\/products\/allen-bradley-1746-no4i-module","provider":"yunshuotrade","version":"1.0","type":"link"}