{"product_id":"allen-bradley-1771-iq16-plc-5-isolated-digital-dc-input-module","title":"Allen-Bradley 1771-IQ16 PLC-5 Isolated Digital DC Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IQ16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-density digital sensing for the Allen-Bradley PLC-5 platform. This module interfaces 16 discrete DC input signals from field devices—such as limit switches, photoelectric sensors, and proximity sensors—directly to the processor. It supports a wide operating range of 10-32V DC, making it compatible with standard 24V DC industrial control circuits. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and factory-original\u003c\/strong\u003e, ensuring your legacy 1771 Universal I\/O chassis maintains peak performance despite the manufacturer's 2020 discontinuation.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1771-IQ16 utilizes isolated circuitry to protect the PLC backplane from external electrical transients.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital \/ Discrete DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Points\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10–32V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIsolated (Channel-to-Backplane)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePLC-5 \/ 1771 Universal I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1771 I\/O Chassis Slot\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Draw\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLow Power Consumption Backplane Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.90 lbs (0.41 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Signal Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1771-IQ16 features robust electrical isolation between the field-side inputs and the logic-side backplane. This prevents high-voltage spikes or ground loops from damaging the PLC processor, which is a critical advantage in large-scale plants with long wire runs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Voltage Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 10-32V DC range accommodates fluctuating power supplies. It ensures reliable \"ON\" state detection even during significant voltage drops in busy industrial DC grids, effectively eliminating intermittent signal faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Rack Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy packing 16 inputs into a single 1771 slot, this module maximizes your chassis real estate. This allows for system expansion or complex machine control without the need to purchase additional expensive I\/O racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDrop-in Replacement Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eunit, the 1771-IQ16 requires no software changes or hardware modifications. You simply slide it into the existing slot and reconnect the wiring arm to restore full machine functionality instantly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1771-IQ16 require a specific wiring arm?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. You typically pair this module with the 1771-WN or 1771-WH wiring arm. The arm allows you to swap modules without disconnecting individual field wires, which significantly reduces downtime during maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module with 12V DC systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1771-IQ16 activates at 10V DC, making it perfectly suitable for both 12V DC and standard 24V DC control architectures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSince this part is discontinued, how do you guarantee its \"Brand New\" status?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe source these modules from climate-controlled, factory-sealed surplus inventories. Every 1771-IQ16 arrives in its original Allen-Bradley box with factory seals intact, ensuring the internal capacitors and components have zero operational wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between this and non-isolated modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNon-isolated modules often share a common ground. The isolated design of the 1771-IQ16 provides a higher layer of protection for the CPU, making it the preferred choice for environments with high electromagnetic interference (EMI) or varying ground potentials.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52847624061237,"sku":"1771-IQ16","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1771-IQ16.png?v=1778225161","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1771-iq16-plc-5-isolated-digital-dc-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}