{"product_id":"1771-im-allen-bradley-universal-i-o-plc-5-digital-input-module","title":"1771-IM | Allen-Bradley | Universal I\/O PLC-5 Digital Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a critical interface for the Allen-Bradley PLC-5 platform, converting high-voltage field signals into logic-level data. It monitors discrete states from limit switches, pushbuttons, and motor starters operating at 220\/240V levels. We provide this unit in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econdition, ensuring maximum MTBF (Mean Time Between Failure) for plants maintaining legacy PLC-5 architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1771-IM\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAC\/DC Digital Input\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\u003e8 Points\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Category\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e220\/240 VAC or VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e184–276 VAC (47–63 Hz) or VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 mA @ 5 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Delay (Max)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20ms (±10ms)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.8W (Min) to 5.2W (Max)\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\u003e0.49 kg (1.08 lbs)\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\u003eUniversal Voltage Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module bridges the gap between high-voltage field power and low-voltage logic. It accepts both AC and DC inputs, providing engineering teams with the flexibility to standardize spare parts across different power distributions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInternal circuitry separates field-side transients from the sensitive PLC-5 backplane. This isolation prevents voltage spikes from cascading through the rack, protecting the processor and neighboring modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReduced Rack Loading:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a low backplane current draw of only 75 mA, this module allows for dense I\/O configurations without overtaxing the 1771 power supply.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardened Industrial Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1771-IM utilizes the classic \"Universal I\/O\" rugged housing. It withstands the thermal stresses of unconditioned cabinets, maintaining signal accuracy in environments ranging from 0 to 60°C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 1771-IM handle signal debouncing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module hardware incorporates fixed filters that require a signal to persist for approximately 20ms before registering as a \"high\" state. This prevents electrical noise and contact bounce from triggering false logic execution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace a 1771-ID (120V) with a 1771-IM (220V)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. While the physical form factor remains the same, the 1771-IM requires a 220\/240V threshold to activate. Using it in a 120V circuit will result in the module failing to detect input transitions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the wiring requirements for the 1771-IM?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module requires the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewiring arm. This swing-arm design allows you to replace the module without disconnecting individual field wires, significantly reducing downtime during maintenance cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this brand-new unit require specific configuration in RSLogix 5?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou configure the 1771-IM as a standard 8-point discrete input module within the I\/O configuration tree. Since it uses a 1-slot addressing format, ensure your DIP switch settings on the 1771 backplane match your intended rack addressing logic.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53410935963832,"sku":"1771-IM","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1771-IM.jpg?v=1777277742","url":"https:\/\/www.globalpetroparts.com\/products\/1771-im-allen-bradley-universal-i-o-plc-5-digital-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}