{"product_id":"allen-bradley-1746-nio4v-analog-io-module","title":"Allen-Bradley  Brand New 1746-NIO4V Analog I\/O Module Fast Shipping","description":"\u003cstyle\u003e.nxs-industrial-product-page{--navy:#082f49;--blue:#0b4f7c;--blue2:#0f6ea8;--cyan:#38bdf8;--border:#c9dce9;--text:#173042;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.75;background:linear-gradient(180deg,#eef6fb,#f7fafc 320px,#eef3f7);padding:18px 0 36px}.nxs-industrial-product-page *{box-sizing:border-box}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:auto}.nxs-industrial-product-page .section{position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;margin:22px 0;padding:34px 30px;box-shadow:0 10px 30px rgba(8,47,73,.08);overflow:hidden}.nxs-industrial-product-page .section:before{content:'';position:absolute;left:0;top:0;width:5px;height:100%;background:linear-gradient(var(--blue2),var(--blue))}.nxs-industrial-product-page 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.section:last-of-type\u003ep:before{content:counter(faq,decimal-leading-zero);position:absolute;left:14px;top:16px;background:var(--blue);color:#fff;font-size:11px;font-weight:bold;padding:4px 6px;border-radius:5px}.nxs-industrial-product-page .section:last-of-type\u003ep strong{color:#0b456d}.nxs-industrial-product-page .section:last-of-type\u003ebr{display:block;content:'';margin:10px 0}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px}.nxs-industrial-product-page .section{margin:14px 0;padding:25px 16px;border-radius:11px}.nxs-industrial-product-page h2{font-size:21px}.nxs-industrial-product-page h2:before{width:20px}.nxs-industrial-product-page .spec-table{table-layout:fixed}.nxs-industrial-product-page .spec-table td{padding:10px 8px;font-size:13px;line-height:1.55}.nxs-industrial-product-page .spec-table td:first-child{width:43%}.nxs-industrial-product-page .features,.nxs-industrial-product-page ul{grid-template-columns:1fr}.nxs-industrial-product-page .card{padding:18px 16px}.nxs-industrial-product-page .card:hover{transform:none}.nxs-industrial-product-page li{font-size:14px}.nxs-industrial-product-page .section:last-of-type\u003ep{font-size:14px;padding-left:47px}.nxs-industrial-product-page .section:last-of-type\u003ep:before{left:11px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page *{transition:none!important}}\u003c\/style\u003e\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\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-NIO4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAnalog I\/O 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\u003eCombination Analog Input and Voltage Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Analog 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\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output Channels\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channel Configuration\u003c\/td\u003e\n\u003ctd\u003eDifferential Voltage or Current, Selectable Per Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Types\u003c\/td\u003e\n\u003ctd\u003eAnalog Voltage and Analog Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Voltage Input Range\u003c\/td\u003e\n\u003ctd\u003e-10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Current Input Range\u003c\/td\u003e\n\u003ctd\u003e-20 to +20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnipolar Input Applications\u003c\/td\u003e\n\u003ctd\u003e0-10 VDC, 0-5 VDC, 1-5 VDC, 0-20 mA and 4-20 mA Within Supported Input Ranges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput A\/D Converter Resolution\u003c\/td\u003e\n\u003ctd\u003e16-Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Conversion Method\u003c\/td\u003e\n\u003ctd\u003eDelta-Sigma Modulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Input Resolution\u003c\/td\u003e\n\u003ctd\u003e305.176 µV per LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Input Resolution\u003c\/td\u003e\n\u003ctd\u003e1.22070 µA per LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Input Impedance\u003c\/td\u003e\n\u003ctd\u003e1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Input Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Maximum Current Input\u003c\/td\u003e\n\u003ctd\u003e-30 to +30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Maximum Current Input Terminal Voltage\u003c\/td\u003e\n\u003ctd\u003e±7.5 VDC or 7.5 VAC RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Input Coding\u003c\/td\u003e\n\u003ctd\u003e-32768 to +32767 for -10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Input Coding\u003c\/td\u003e\n\u003ctd\u003e-16384 to +16384 for -20 to +20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channel Repeatability\u003c\/td\u003e\n\u003ctd\u003e±1 LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Nonlinearity\u003c\/td\u003e\n\u003ctd\u003e0.01%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channel Bandwidth\u003c\/td\u003e\n\u003ctd\u003e10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Step Response\u003c\/td\u003e\n\u003ctd\u003e60 ms to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Input Conversion Throughput\u003c\/td\u003e\n\u003ctd\u003e512 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Input Overall Accuracy at 25°C\u003c\/td\u003e\n\u003ctd\u003e±0.284% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Input Overall Accuracy at 25°C\u003c\/td\u003e\n\u003ctd\u003e±0.365% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Voltage Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Output Voltage Range\u003c\/td\u003e\n\u003ctd\u003e-10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput D\/A Converter Resolution\u003c\/td\u003e\n\u003ctd\u003e14-Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Conversion Method\u003c\/td\u003e\n\u003ctd\u003eR-2R Ladder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Resolution\u003c\/td\u003e\n\u003ctd\u003e1.22070 mV per LSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Coding\u003c\/td\u003e\n\u003ctd\u003e-32768 to +32764 for -10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Nonlinearity\u003c\/td\u003e\n\u003ctd\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Step Response\u003c\/td\u003e\n\u003ctd\u003e2.5 ms to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Load Resistance\u003c\/td\u003e\n\u003ctd\u003e1 kΩ to Infinite Resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Load Current\u003c\/td\u003e\n\u003ctd\u003e10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Load Reactance\u003c\/td\u003e\n\u003ctd\u003e1 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Overall Accuracy at 25°C\u003c\/td\u003e\n\u003ctd\u003e±0.208% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Overall Accuracy at 0-60°C\u003c\/td\u003e\n\u003ctd\u003e±0.384% of Full Scale Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels Individually Isolated\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels Individually Isolated\u003c\/td\u003e\n\u003ctd\u003eNo\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\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\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\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\u003e115 mA Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal 24VDC Power Supply\u003c\/td\u003e\n\u003ctd\u003eNot Required for Standard Module Operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range Selection\u003c\/td\u003e\n\u003ctd\u003eHardware Switch Selection per Input Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible PLC System\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Interface\u003c\/td\u003e\n\u003ctd\u003eBulletin 1746 Backplane\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\u003eChassis Slot Requirement\u003c\/td\u003e\n\u003ctd\u003eOne I\/O Slot\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\u003eRecommended Analog 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\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 UPC\u003c\/td\u003e\n\u003ctd\u003e662073735892\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\u003ctr\u003e\n\u003ctd\u003eManufacturer Product Reference\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.rockwellautomation.com\/en-us\/products\/details.1746-NIO4V.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRockwell Automation 1746-NIO4V Product Details\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnical Reference Manual\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/literature.rockwellautomation.com\/idc\/groups\/literature\/documents\/um\/1746-um005_-en-p.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRockwell Automation SLC 500 4-Channel Analog I\/O Modules User Manual\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003eTwo Analog Inputs and Two Voltage Outputs\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1746-NIO4V combines two analog input channels and two analog voltage output channels in one SLC 500 module. This configuration enables compatible PLC systems to monitor analog process signals while generating voltage commands for industrial field devices.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eSelectable Voltage or Current Inputs\u003c\/h3\u003e\n\u003cp\u003eEach differential analog input supports voltage or current signal selection. The documented full-scale ranges are -10 to +10 VDC and -20 to +20 mA, enabling suitable signal scaling for common process instrumentation, including 4-20 mA transmitters.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e16-Bit Input Resolution\u003c\/h3\u003e\n\u003cp\u003eThe analog inputs use 16-bit delta-sigma conversion, providing nominal resolutions of 305.176 µV per LSB for voltage measurements and 1.22070 µA per LSB for current measurements. This supports compatible process measurement and monitoring applications.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e14-Bit Bipolar Voltage Outputs\u003c\/h3\u003e\n\u003cp\u003eTwo analog output channels provide -10 to +10 VDC signals using 14-bit digital-to-analog conversion. Their 1.22070 mV resolution and 2.5 ms step response to 95% support compatible variable frequency drive references and proportional control inputs.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eDirect SLC 500 Backplane Integration\u003c\/h3\u003e\n\u003cp\u003eThe module occupies one compatible Bulletin 1746 chassis slot and communicates through the SLC 500 backplane. Its maximum backplane current requirements are 55 mA at 5 VDC and 115 mA at 24 VDC, which must be included in the chassis power budget.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eIndustrial Wiring and Isolation\u003c\/h3\u003e\n\u003cp\u003eA removable terminal block supports field wiring access. The module provides 500 VDC field-to-backplane isolation and is designed for 0°C to 60°C operation. Input and output channels are not individually isolated, so grounding and shielding practices are important for signal accuracy.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog process signal monitoring in SLC 500 PLC systems\u003c\/li\u003e\n\u003cli\u003e4-20mA pressure transmitter and flow sensor input monitoring\u003c\/li\u003e\n\u003cli\u003eTemperature and process instrument signal acquisition\u003c\/li\u003e\n\u003cli\u003eAnalog speed reference commands for compatible variable frequency drives\u003c\/li\u003e\n\u003cli\u003eProportional valve and actuator voltage command applications\u003c\/li\u003e\n\u003cli\u003eIndustrial equipment requiring combined analog measurement and control\u003c\/li\u003e\n\u003cli\u003eManufacturing process automation using Bulletin 1746 chassis\u003c\/li\u003e\n\u003cli\u003eMaintenance and replacement of compatible SLC 500 analog combination modules\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Allen-Bradley 1746-NIO4V Analog I\/O 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\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Allen-Bradley 1746-NIO4V?\u003c\/strong\u003e\u003cbr\u003eAllen-Bradley 1746-NIO4V is a four-channel combination analog I\/O module for SLC 500 programmable controllers. It provides two differential analog inputs selectable for voltage or current signals and two bipolar analog voltage outputs.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eHow many analog input and output channels does 1746-NIO4V have?\u003c\/strong\u003e\u003cbr\u003eThe module includes two analog input channels and two analog output channels, for four total analog channels. Unlike a four-output-only module, the 1746-NIO4V supports both signal acquisition and analog output control in one chassis slot.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat input signal ranges does 1746-NIO4V support?\u003c\/strong\u003e\u003cbr\u003eEach input channel can be configured for a normal voltage range of -10 to +10 VDC or a current range of -20 to +20 mA. Common narrower signal ranges can be interpreted through appropriate PLC scaling and wiring.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eCan 1746-NIO4V read 4-20mA transmitters?\u003c\/strong\u003e\u003cbr\u003eYes. A 4-20 mA signal falls within the module's supported current input range. The input channel must be selected for current operation, wired according to the applicable transmitter configuration and scaled correctly in the SLC 500 program.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat output signal does 1746-NIO4V generate?\u003c\/strong\u003e\u003cbr\u003eThe two output channels generate analog voltage signals across a normal range of -10 to +10 VDC. The module does not provide analog current outputs. Applications requiring current output should use a compatible current-output module.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between 1746-NIO4V and 1746-NIO4I?\u003c\/strong\u003e\u003cbr\u003eBoth modules provide two selectable voltage or current analog inputs. The 1746-NIO4V has two -10 to +10 VDC voltage outputs, while the 1746-NIO4I has two 0-20 mA current outputs. These output configurations are not interchangeable without evaluating the connected devices and PLC application.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the input and output resolutions?\u003c\/strong\u003e\u003cbr\u003eThe analog inputs use 16-bit conversion with nominal resolution of 305.176 µV per LSB in voltage mode or 1.22070 µA per LSB in current mode. The voltage outputs use 14-bit conversion with a nominal resolution of 1.22070 mV per LSB.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the analog voltage output load requirements?\u003c\/strong\u003e\u003cbr\u003eThe voltage outputs support load resistance from 1 kΩ upward, with a maximum output load current of 10 mA and maximum load reactance of 1 µF. The connected field equipment must remain within these electrical limits.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eDoes 1746-NIO4V require an external 24VDC power supply?\u003c\/strong\u003e\u003cbr\u003eNo separate external 24 VDC supply is specified for standard 1746-NIO4V module operation. It draws power from the compatible SLC 500 backplane, with maximum current requirements of 55 mA at 5 VDC and 115 mA at 24 VDC. Field instruments may require their own power supplies.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eAre the analog channels individually isolated?\u003c\/strong\u003e\u003cbr\u003eNo. The two differential input channels and the two voltage output channels are not individually isolated. The module provides 500 VDC isolation between field wiring and the SLC backplane. Proper shielding, grounding and signal routing are important.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIs Allen-Bradley 1746-NIO4V discontinued?\u003c\/strong\u003e\u003cbr\u003eYes. Rockwell Automation lists the 1746-NIO4V as discontinued effective April 29, 2021, with an Engineering Replacement classification. A modernization project may require changes to controller hardware, wiring, analog scaling and programming rather than a direct module substitution.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering 1746-NIO4V?\u003c\/strong\u003e\u003cbr\u003eVerify the exact catalog number 1746-NIO4V, SLC 500 chassis and processor compatibility, two input and two output channel configuration, voltage or current input switch settings, -10 to +10 VDC output requirements, 16-bit input and 14-bit output conversion, 5 VDC and 24 VDC backplane current budget, terminal block condition, analog wiring, grounding, signal scaling and the manufacturer's discontinued product status. Confirm the existing PLC program and slot assignment before replacing the module.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67736569282639,"sku":"LL1-AB-1746NIO4V","price":122.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/1746-NIO4V-01.jpg?v=1792141743","url":"https:\/\/yunshuotrade.com\/products\/allen-bradley-1746-nio4v-analog-io-module","provider":"yunshuotrade","version":"1.0","type":"link"}