{"product_id":"allen-bradley-1771-ivn-plc-5-dc-input-module","title":"Allen-Bradley 1771-IVN PLC-5 DC Input Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IVN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a 32-channel digital DC input module engineered for PLC-5 automation systems and Bulletin 1771 I\/O chassis platforms. Designed for low-true input operation, this module interfaces with field devices operating within a 10 to 30 Volts DC range and is optimized for applications requiring reliable high-density discrete input processing.\u003c\/p\u003e\n\u003cp\u003eThe module supports sourcing-type inputs and is intended for use with sinking field output devices. It features four isolated groups of eight inputs, enabling flexible wiring and signal organization in distributed control architectures. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IVN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates using half-slot addressing without limitations and can also support single-slot addressing configurations depending on processor and chassis compatibility.\u003c\/p\u003e\n\u003cp\u003eBuilt for rack-mounted installation, the module communicates directly through the PLC-5 backplane and consumes minimal backplane current, making it suitable for legacy modernization projects and existing 1771-based control systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1771-IVN\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Grouping\u003c\/td\u003e\n\u003ctd\u003e4 Groups of 8 Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Category\u003c\/td\u003e\n\u003ctd\u003e10–60V DC Source Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e10–30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Logic\u003c\/td\u003e\n\u003ctd\u003eLow True\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Configuration\u003c\/td\u003e\n\u003ctd\u003eSourcing Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Field Devices\u003c\/td\u003e\n\u003ctd\u003eSinking Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAddressing Support\u003c\/td\u003e\n\u003ctd\u003eHalf-Slot and Conditional 1-Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-Slot Addressing\u003c\/td\u003e\n\u003ctd\u003eNot Supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Image Table\u003c\/td\u003e\n\u003ctd\u003e32 Bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Image Table\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n\u003ctd\u003e280 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Current\u003c\/td\u003e\n\u003ctd\u003e1.7 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical On-State Delay\u003c\/td\u003e\n\u003ctd\u003e6 ms ±2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Off-State Delay\u003c\/td\u003e\n\u003ctd\u003e50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Style\u003c\/td\u003e\n\u003ctd\u003eRack Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Wiring Arm\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e32-point high-density DC input interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with PLC-5 and 1771 chassis systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports low-true digital input signals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour isolated input groups for flexible wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for sourcing input applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHalf-slot addressing support without restrictions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDigital filtering for stable signal processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRack-mounted industrial module construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IVN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einput module is commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePLC-5 discrete input systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFactory automation panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConveyor and material handling systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePackaging machinery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotor control monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess control equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLegacy Allen-Bradley 1771 installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDistributed industrial I\/O systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat type of signals does the 1771-IVN accept?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module accepts low-true DC digital input signals within a recommended operating range of 10 to 30V DC.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCan the 1771-IVN be installed in all 1771 chassis systems?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. The module is compatible with current Allen-Bradley Bulletin 1771 I\/O chassis platforms.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDoes the module support 2-slot addressing?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IVN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports half-slot addressing and limited 1-slot addressing only.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat wiring arm is required for installation?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module uses the Allen-Bradley 1771-WH wiring arm.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs this module suitable for modern PLC platforms?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module is primarily designed for PLC-5 and legacy 1771 systems but is still widely used in maintenance and retrofit applications.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43337159311450,"sku":"1771-IVN","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-IVN2.jpg?v=1778297058","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-ivn-plc-5-dc-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}