{"product_id":"allen-bradley-1791-ndv-block-i-o-module-24v-dc-analog","title":"Allen-Bradley 1791-NDV Block I\/O Module | 24V DC Analog","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1791-NDV Analog I\/O Module: Compact and Reliable Performance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Product Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e The module comes from the trusted manufacturer Allen-Bradley, with the model number \u003cb\u003e1791-NDV\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Configuration:\u003c\/strong\u003e This unit provides \u003cspan style=\"color: #0066cc;\"\u003efour analog input channels and two analog voltage output channels\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Ratings:\u003c\/strong\u003e It operates on an external power supply of \u003cspan style=\"color: #0066cc;\"\u003e19.2 to 30 Volts DC\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Performance:\u003c\/strong\u003e The module boasts a high \u003cspan style=\"color: #0066cc;\"\u003e14-bit resolution\u003c\/span\u003e for accurate data conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e It maintains an excellent \u003cspan style=\"color: #0066cc;\"\u003eabsolute accuracy of 0.1%\u003c\/span\u003e at a stable 25°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Features:\u003c\/strong\u003e It includes \u003cspan style=\"color: #0066cc;\"\u003eindefinite short-circuit protection\u003c\/span\u003e for the outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Technical Parameters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e Each channel updates its signal every \u003cspan style=\"color: #0066cc;\"\u003e108 milliseconds\u003c\/span\u003e for timely data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e The voltage input channels have a high \u003cspan style=\"color: #0066cc;\"\u003e10 MΩ impedance\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Input:\u003c\/strong\u003e The current input channels use a \u003cspan style=\"color: #0066cc;\"\u003e249-ohm shunt resistor rated at 0.25 Watts\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e The analog outputs feature a very low output impedance of \u003cspan style=\"color: #0066cc;\"\u003eless than 1 Ohm\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinearity:\u003c\/strong\u003e The device ensures signal fidelity with a linearity of \u003cspan style=\"color: #0066cc;\"\u003e0.05% at 25°C\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth:\u003c\/strong\u003e The input filter provides a \u003cspan style=\"color: #0066cc;\"\u003e5 Hz bandwidth\u003c\/span\u003e to reduce noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental \u0026amp; Physical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e The unit works reliably in ambient temperatures from \u003cspan style=\"color: #0066cc;\"\u003e0 to 60 degrees Celsius\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e You can store it safely in temperatures ranging from \u003cspan style=\"color: #0066cc;\"\u003e-40 to 85 degrees Celsius\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Tolerance:\u003c\/strong\u003e It withstands relative humidity levels of \u003cspan style=\"color: #0066cc;\"\u003e5% to 95%, non-condensing\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e The compact module measures 6.95 inches in height, 2.7 inches in width, and 3.85 inches in depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e Its power dissipation is approximately 11.52 Watts (\u003cspan style=\"color: #0066cc;\"\u003e39.28 BTU per hour\u003c\/span\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvervoltage Protection:\u003c\/strong\u003e Both inputs and outputs are protected against overvoltage up to \u003cspan style=\"color: #0066cc;\"\u003e140 Volts AC\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Support Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Install the \u003cb\u003e1791-NDV\u003c\/b\u003e module on a standard DIN rail within your control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Always follow the wiring diagram in the manual for correct and safe connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Ensure your system's DC power supply falls within the 19.2-30V DC range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Confirm your installation site meets the specified temperature and humidity limits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackaging \u0026amp; Shipping\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging List:\u003c\/strong\u003e Your order includes one Allen-Bradley \u003cb\u003e1791-NDV\u003c\/b\u003e module and the necessary documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Options:\u003c\/strong\u003e We ship globally using reliable carriers like FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Status:\u003c\/strong\u003e This is a \u003cspan style=\"color: #0066cc;\"\u003ebrand new, original\u003c\/span\u003e product, and we typically have it in stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Time:\u003c\/strong\u003e We process and dispatch orders within \u003cspan style=\"color: #0066cc;\"\u003e5 business days\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn Policy:\u003c\/strong\u003e We offer a \u003cspan style=\"color: #0066cc;\"\u003e30-day return policy\u003c\/span\u003e for your peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the \u003cb\u003e1791-NDV\u003c\/b\u003e module's main function?\u003c\/strong\u003e\u003cbr\u003eIt is a 24V DC analog interface that reads 4 sensor signals and controls 2 analog actuators for PLC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat type of signals does the \u003cb\u003e1791-NDV\u003c\/b\u003e handle?\u003c\/strong\u003e\u003cbr\u003eThe four input channels can accept either voltage or current signals, as configured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow fast does this Allen-Bradley module update its data?\u003c\/strong\u003e\u003cbr\u003eThe module updates each of its six channels every 108 milliseconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the resolution of the analog conversion?\u003c\/strong\u003e\u003cbr\u003eIt features a 14-bit analog-to-digital conversion, providing fine signal detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the output channel protected against wiring mistakes?\u003c\/strong\u003e\u003cbr\u003eYes, the output channels have indefinite short-circuit protection for safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the condition of the product you ship?\u003c\/strong\u003e\u003cbr\u003eWe supply only \u003cspan style=\"color: #0066cc;\"\u003ebrand new, original, and unused\u003c\/span\u003e Allen-Bradley modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow quickly will my order ship?\u003c\/strong\u003e\u003cbr\u003eWe aim to pack and ship all in-stock items within \u003cspan style=\"color: #0066cc;\"\u003e5 business days\u003c\/span\u003e after order confirmation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich logistics services do you use?\u003c\/strong\u003e\u003cbr\u003eWe commonly use international express services like DHL, FedEx, and UPS for reliable delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat if the product does not meet my needs?\u003c\/strong\u003e\u003cbr\u003eWe offer a straightforward \u003cspan style=\"color: #0066cc;\"\u003e30-day return policy\u003c\/span\u003e for qualified items.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003ePhone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47289700450562,"sku":"1791-NDV","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1791-NDV.jpg?v=1773900511","url":"https:\/\/www.nex-auto.com\/az\/products\/allen-bradley-1791-ndv-block-i-o-module-24v-dc-analog","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}