{"product_id":"allen-bradley-plc-5-1771-ibd-1771-16-point-digital-input-module","title":"Allen-Bradley PLC-5 1771-IBD 1771 16 Point Digital Input Module","description":"\u003cp\u003e\u003cspan class=\"\"\u003eConfigured for high-density digital signal acquisition in PLC-5 control systems,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"\"\u003eAllen-Bradley 1771-IBD\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e(\u003c\/span\u003e\u003cstrong class=\"\"\u003e1771-IBD\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eDigital Input Module) provides direct electrical interface for 16 discrete input channels.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe module facilitates the conversion of field-level 10-30 VDC signals into logic-level data for backplane processing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\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\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1771-IBD\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.8 x 15 x 25.5 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Voltage Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 - 30 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.2 kOhms (maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 - 7.3 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e130 mA @ 5 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOn-state Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 VDC (minimum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOff-state Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 VDC (maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOff-state Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 mA @ 5 VDC (maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"\"\u003eBackplane Bus Communication and I\/O Scaling\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe 1771-IBD utilizes the standard 1771 I\/O backplane protocol to communicate with the PLC-5 processor.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe module hardware supports 1\/2,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e1,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eor 2-slot addressing modes,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eallowing for flexible I\/O density scaling within the chassis.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eOptoelectrical isolation is integrated into the circuitry to maintain signal integrity and provide transient protection between the field-side signaling devices and the PLC backplane bus.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eFirmware compatibility is dictated by the revision of the 1771 backplane interface,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eensuring deterministic data exchange during scan cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003ePackage Contents\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003e1 1771-IBD Digital Input Module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003e1 1771-WH Field Wiring Arm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eInstallation and Integration Procedures\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eChassis Preparation:\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eDe-energize the 1771 I\/O chassis power supply before module installation or removal.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eKeying:\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eInstall plastic keying bands on the chassis backplane connector to match the module keying slots located between pins 10-12 and 16-18.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eModule Insertion:\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eAlign the module with the chassis card guides and apply uniform pressure to seat the module firmly into the backplane connector.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eWiring Arm Attachment:\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eMount the 1771-WH wiring arm to the chassis pivot bar to allow for signal termination and modular module removal.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eLocking:\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSecure the module using the built-in chassis latching mechanism to ensure proper seating and electrical contact.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhat is the primary function of the 1771-WH wiring arm?\u003c\/span\u003e\u003cspan\u003eThe 1771-WH facilitates modular wiring,\u003c\/span\u003e\u003cspan\u003e allowing users to remove the module for maintenance or replacement without disconnecting the individual field wires from the terminal block.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDoes the 1771-IBD support hot-swapping?\u003c\/span\u003e\u003cspan\u003eNo.\u003c\/span\u003e\u003cspan\u003e The 1771 I\/O system requires the chassis power to be cycled off before removing or inserting modules to prevent potential damage to the backplane circuitry.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhat is the purpose of the keying bands?\u003c\/span\u003e\u003cspan\u003eKeying bands prevent the insertion of incompatible modules into a specific slot,\u003c\/span\u003e\u003cspan\u003e which protects the module and backplane from electrical damage due to voltage or signal mismatches.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHow is the input signal isolated?\u003c\/span\u003e\u003cspan\u003eThe module incorporates optoelectrical isolation,\u003c\/span\u003e\u003cspan\u003e which acts as a barrier to prevent high-voltage transients or electrical noise from the field devices from entering the PLC processor backplane.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhat is the maximum signal delay for this module?\u003c\/span\u003e\u003cspan\u003eThe 1771-IBD exhibits a typical signal delay of 1.\u003c\/span\u003e\u003cspan\u003e3 ms (plus or minus 0.\u003c\/span\u003e\u003cspan\u003e1 ms) for both the on-state and off-state transitions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCan this module be used in a 1771-A2 chassis?\u003c\/span\u003e\u003cspan\u003eNo.\u003c\/span\u003e\u003cspan\u003e The 1771-IBD is specifically documented as incompatible with the 1771-A1,\u003c\/span\u003e\u003cspan\u003e 1771-A2,\u003c\/span\u003e\u003cspan\u003e and 1771-A4 chassis models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHow should field wires be torqued?\u003c\/span\u003e\u003cspan\u003eWiring arm screws should be tightened to a specification of 7-9 inch-pounds to ensure a secure connection and prevent contact resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhat indicates the status of the input channels?\u003c\/span\u003e\u003cspan\u003eThe front panel features 16 red LEDs to display the state of each input channel and 1 green LED for general module status indication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066443387053,"sku":"1771-IBD","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1771-IBD_2cd89e83-0235-41f7-b48d-38404cf27f9d.jpg?v=1781170240","url":"https:\/\/www.maxwellplc.com\/ga\/products\/allen-bradley-plc-5-1771-ibd-1771-16-point-digital-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}