{"product_id":"1771-ibd-industrial-automation-module-by-allen-bradley","title":"1771-IBD Industrial Automation Module by Allen-Bradley","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWhen field signals need reliable monitoring, the Allen-Bradley 1771-IBD Digital DC Input Module delivers precise, high-speed detection for your control system. As part of the 1771 product bulletin, this single-slot module interfaces with switches, sensors, and auxiliary contacts, translating their ON\/OFF states into logic signals your PLC can act on.\u003c\/p\u003e\u003cp\u003eThe 1771-IBD features sixteen (16) 10-30VDC sink input channels, with a minimum ON-state voltage of 10VDC and a maximum OFF-state voltage of 5VDC. It mounts in any 1771 I\/O chassis except the 1771-A1, -A2, and -A4 models, making it a versatile choice for many legacy and current Allen-Bradley systems.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eBelow are the key specifications for the Allen-Bradley 1771-IBD, sourced directly from the manufacturer's data.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number \/ Catalog No.\u003c\/td\u003e\n\u003ctd\u003e1771-IBD\u003c\/td\u003e\n\u003c\/tr\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e1771 Product Bulletin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of Inputs\u003c\/td\u003e\n\u003ctd\u003eSixteen (16) Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 to 30VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time, OFF to ON\u003c\/td\u003e\n\u003ctd\u003e1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time, ON to OFF\u003c\/td\u003e\n\u003ctd\u003e1 ms or 6 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e7.3 Watts (max.), 1.0 Watts (min.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e24.7 BTU\/hr (max.), 3.4 BTU\/hr (min.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current at 24 Volts\u003c\/td\u003e\n\u003ctd\u003e130mA @ 5V dc +5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible chassis\u003c\/td\u003e\n\u003ctd\u003eAll 1771 I\/O chassis except 1771-A1, -A2, and -A4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeying\u003c\/td\u003e\n\u003ctd\u003eBetween 10 and 12; Between 16 and 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Wiring Arm Cat. No.\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm Screw Torque\u003c\/td\u003e\n\u003ctd\u003e7-9 inch-pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e10 to 60 Volts DC, Sink (Source Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax DC Off-State Current\u003c\/td\u003e\n\u003ctd\u003e2.0 Miliamperes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical AC Signal Delay (Off)\u003c\/td\u003e\n\u003ctd\u003e20 (+\/- 15) milliseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 6.5 x 2.0 inches (89 x 165 x 51 millimeters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e10662468100660\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features and Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 Discrete Inputs:\u003c\/strong\u003e Monitor multiple field devices simultaneously, reducing the need for multiple modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Accepts 10-30VDC signals, compatible with a broad range of sensors and switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Response:\u003c\/strong\u003e 1ms OFF-to-ON delay ensures quick detection of state changes for time-critical processes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e Eighteen LEDs provide immediate visual status of each input and module health.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable Wiring Arm:\u003c\/strong\u003e The 1771-WH field wiring arm simplifies installation and maintenance—no need to disconnect wires when replacing the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptoelectrical Isolation:\u003c\/strong\u003e Protects the backplane and processor from electrical transients.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1771-IBD excels in applications where reliable discrete sensing is essential. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Lines:\u003c\/strong\u003e Monitor limit switches and proximity sensors on conveyor systems to track product flow and detect jams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Interface with photo-eyes and pushbuttons to control machine cycles and safety interlocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Read status from auxiliary contacts on motor starters and valves to confirm equipment state.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstalling the 1771-IBD is straightforward. Follow these steps for a trouble-free setup:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eEnsure the chassis is powered down before inserting or removing the module.\u003c\/li\u003e\n\u003cli\u003eSlide the module into an available slot in a compatible 1771 I\/O chassis (not 1771-A1, -A2, or -A4).\u003c\/li\u003e\n\u003cli\u003eSet the keying bands between pins 10 and 12 (lower connector) and between pins 16 and 18 (upper connector) to prevent incorrect insertion.\u003c\/li\u003e\n\u003cli\u003eAttach the field wiring arm (1771-WH) and torque the screws to 7-9 inch-pounds.\u003c\/li\u003e\n\u003cli\u003eWire field devices to the appropriate terminals, observing polarity for DC sink inputs.\u003c\/li\u003e\n\u003cli\u003ePower up the chassis and verify the LED indicators reflect the input states.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegular maintenance of the 1771-IBD ensures long service life. Periodically inspect the module for dust or debris, which can affect heat dissipation. Check that all wiring connections remain tight and that the wiring arm is secure. The module’s low power dissipation (max 7.3W) reduces heat stress, and its optoelectrical isolation minimizes the risk of damage from transients. With minimal moving parts, the 1771-IBD offers high reliability, reducing downtime and maintenance costs over its lifecycle.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1771-IBD integrates seamlessly with any 1771 I\/O chassis (except the noted models) and works with PLC processors that support the 1771 backplane. It supports ½, 1, and 2-slot I\/O addressing, giving you flexibility in configuring your system. The module is compatible with source-switching devices such as dry-contact switches, electro-mechanical transmitters, and panel devices like selector switches and pushbuttons. For new installations, verify that your existing backplane and power supply can handle the 130mA backplane current draw.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, confirm that your system requires a 16-input DC sink module and that your chassis is compatible (not 1771-A1, -A2, -A4). Check the operating voltage of your field devices to ensure they fall within 10-30VDC. The 1771-IBD comes with a 1771-WH wiring arm; if you need a replacement, the 1771-WH is the correct part. For reliable sourcing, PLC Source PRO offers genuine Allen-Bradley 1771-IBD modules with fast shipping and competitive pricing. Ensure you order the correct part number to avoid compatibility issues.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44438773268579,"sku":"1771-IBD","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1771-A3B1_281_29_775feffe-d3f5-4379-a679-53e4f9d04f49.jpg?v=1785850050","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/1771-ibd-industrial-automation-module-by-allen-bradley","provider":"PLC Source PRO","version":"1.0","type":"link"}