{"product_id":"1771-ibn-allen-bradley-digital-input-module","title":"1771-IBN Allen-Bradley Digital Input Module","description":"\u003ch2\u003eAllen-Bradley 1771-IBN PLC-5 Digital DC Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-IBN\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-IBN\u003c\/strong\u003e Digital DC Input Module, operates as a dedicated hardware component for discrete signal acquisition within PLC-5 control systems. The module provides 32 DC input channels with 10-30 VDC signal acceptance and interfaces through 1771 chassis backplane communication.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1771-IBN\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.86 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current: 280 mA at 5 VDC\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\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 inputs (4 sets of 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10-30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e10-60 VDC, Sink (Source Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum On-State Voltage\u003c\/td\u003e\n\u003ctd\u003e10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC\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 DC Signal Delay On\u003c\/td\u003e\n\u003ctd\u003e6 +\/- 2 ms with digital filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-WN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Chassis\u003c\/td\u003e\n\u003ctd\u003e1771-A1B through 1771-A4B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConformal Coating\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 Backplane and I\/O Signal Processing Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-IBN operates as a PLC-5 I\/O module using the 1771 backplane interface for data exchange between the input circuitry and processor. The module supports 32 high-true DC input points arranged as four groups of eight channels. The 280 mA backplane current requirement defines the module loading condition on the 5 VDC chassis supply.\u003c\/p\u003e\n\u003cp\u003eThe module supports Profinet \/ EtherNet\/IP deterministic networks through PLC-5 system-level communication architectures when connected through compatible interface hardware. Firmware flash compatibility and I\/O density scaling depend on the installed PLC-5 processor and communication adapter configuration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of field signals can the 1771-IBN accept?\u003cbr\u003eA: The module accepts discrete DC input signals within the 10-30 VDC operating range and provides 32 input channels for PLC-5 control applications.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane current requirement of the 1771-IBN?\u003cbr\u003eA: The module requires 280 mA from the 5 VDC PLC-5 backplane supply during operation.\u003c\/p\u003e\n\u003cp\u003eQ: Which wiring interface is compatible with this module?\u003cbr\u003eA: The 1771-IBN uses the 1771-WN wiring arm for field signal termination.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-IBN module in a compatible 1771 chassis slot and verify chassis power availability before insertion. Confirm field wiring polarity and voltage category requirements before connecting DC input signals.\u003c\/p\u003e\n\u003cp\u003eRoute input signal wiring separately from high-current power conductors to reduce electrical interference. Maintain proper shield termination practices when shielded cables are used, with grounding applied according to the system cabinet grounding design.\u003c\/p\u003e\n\u003cp\u003eVerify that the wiring arm is correctly seated and that terminal connections are mechanically secured before commissioning. Check input status indication and PLC-5 controller I\/O configuration after installation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43681313783898,"sku":"1771-IBN","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-IBN2.jpg?v=1784528382","url":"https:\/\/www.plcmasters.com\/products\/1771-ibn-allen-bradley-digital-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}