{"product_id":"1771-ifek-series-allen-bradley-plc-5-analog-input-module","title":"1771-IFEK Series Allen-Bradley PLC-5 Analog Input Module","description":"\u003ch3\u003eEngineering Architecture \u0026amp; Configuration Matrix\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1771-IFEK\u003c\/strong\u003e module engineered by \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e is a high-density \u003cstrong style=\"color: #0056b3;\"\u003eAnalog Input Module\u003c\/strong\u003e designed specifically for the \u003cstrong style=\"color: #0056b3;\"\u003ePLC-5 Series\u003c\/strong\u003e architecture. This conformal-coated processor card handles multi-channel analog signal conditioning and transfers block transfer data directly to the host controller data table.\u003c\/p\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e \u003cstrong style=\"color: #0056b3;\"\u003e1771-IFEK\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer \u0026amp; Brand:\u003c\/strong\u003e Rockwell Automation \/ Allen-Bradley\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Category:\u003c\/strong\u003e PLC-5 Series Analog Input Transducer Card\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannel Architecture:\u003c\/strong\u003e 8 Differential Selectable or 16 Single-Ended Selectable inputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField Wiring Arm:\u003c\/strong\u003e 1771-WG swing-arm interface (enables fast card replacement without rewiring)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhysical Keying Specification:\u003c\/strong\u003e Keying bands required between pins 10-12 and pins 24-26\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Performance Metrics\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTechnical Parameter\u003c\/strong\u003e\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEngineering Specification\u003c\/strong\u003e\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eResolution \u0026amp; Data Format\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12 bits + sign conversion; Natural Binary or 4-digit BCD scaling to ±9999\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChannel Update Speed\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e18 ms per 8 channels; 36 ms per 16 active channels\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage Input Ranges\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0–5 V dc, 1–5 V dc, ±5 V dc, ±10 V dc, and 0–10 V dc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Input Ranges\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4–20 mA, 0–20 mA, and ±20 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBackplane Current Load\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e750 mA (500 mA at 5V nominal chassis backplane draw)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eThermal \u0026amp; Power Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5 Watts maximum power dissipation; 8.52 BTU\/hr thermal output\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConformal coated polymeric film shielding against humidity, moisture, and corrosion\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSignal Isolation \u0026amp; Filtering\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eOptoelectrical isolation paired with built-in digital filtering to eliminate electrical noise\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIndustrial Applications \u0026amp; System Environments\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLegacy PLC-5 Process Control Skids:\u003c\/strong\u003e Integrates analog loop transmitters, pressure sensors, and flow meters into classic PLC chassis.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy Manufacturing Plants:\u003c\/strong\u003e Operates reliably in corrosive or humid production spaces thanks to factory conformal coating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnergy \u0026amp; Utility Substation Racks:\u003c\/strong\u003e Monitors multi-variable analog inputs without requiring dedicated external power supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDiagnostic Capabilities \u0026amp; Error Detection\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront-Panel Status LEDs:\u003c\/strong\u003e Dedicated green RUN indicator and red FAULT indicator give instant visual health confirmation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlock Transfer Error Handlers:\u003c\/strong\u003e Flags configuration and communication timeouts seamlessly across PLC-5 data tables.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal-Time Sampling \u0026amp; Filtering:\u003c\/strong\u003e Suppresses high-frequency plant noise to prevent erratic analog value fluctuations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eWhen retrofitting or maintaining older PLC-5 architectures, managing backplane power budgeting is critical. The \u003cstrong style=\"color: #0056b3;\"\u003e1771-IFEK\u003c\/strong\u003e draws 500mA to 750mA from the 5V backplane, which must be accounted for when populating high-density 1771 I\/O chassis. Field engineers appreciate the 1771-WG swing-arm wiring design, allowing quick module swaps during emergency shutdowns without unbolting individual field conductors. To ensure long-term signal stability in humid chemical or wastewater environments, verify that the conformal coating remains uncompromised and always install correct backplane keying bands between pins 10-12 and 24-26 to prevent card insertion errors.\u003c\/p\u003e\n\n\u003ch3\u003eLogistics, Packaging \u0026amp; Warranty Terms\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition Status:\u003c\/strong\u003e 100% New \u0026amp; Original factory-sealed hardware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty Coverage:\u003c\/strong\u003e Comprehensive 12 Months factory warranty from date of purchase.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrder Handling:\u003c\/strong\u003e Rapid 24 to 48 hour processing and dispatch window.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Express Shipping:\u003c\/strong\u003e Fast, secure air delivery worldwide via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch3\u003eHow does block transfer programming operate on the 1771-IFEK module?\u003c\/h3\u003e\n\u003cp\u003eBlock transfer programming moves input data words continuously from the module memory into the PLC processor data table while periodically writing configuration parameters back to the module.\u003c\/p\u003e\n\n\u003ch3\u003eWhy are backplane keying bands mandatory during hardware installation?\u003c\/h3\u003e\n\u003cp\u003eInstalling keying bands between pins 10-12 and 24-26 prevents accidental insertion of incompatible module types into the wired 1771 chassis slot, protecting internal circuitry.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the 1771-WG swing-arm wiring design advantageous during maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe 1771-WG swing-arm connects all field wires directly to the terminal arm, allowing technicians to unlatch and replace the circuit card body without disconnecting any field cables.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the module achieve noise reduction in electrically noisy industrial plants?\u003c\/h3\u003e\n\u003cp\u003eIt combines robust optoelectrical isolation circuits with integrated digital filtering algorithms to suppress common-mode electrical noise and electromagnetic interference.\u003c\/p\u003e\n\n\u003ch3\u003eWhat selection factors should guide choosing between single-ended and differential inputs?\u003c\/h3\u003e\n\u003cp\u003eSelect differential input mode when dealing with long signal wire runs subject to ground potential differences; choose single-ended mode to maximize available input density up to 16 channels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013909635254,"sku":"1771-IFEK","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1771-IFEK_78111a20-3708-4266-b1ad-5c839ace6088.jpg?v=1793168512","url":"https:\/\/www.plcsparehub.com\/products\/1771-ifek-series-allen-bradley-plc-5-analog-input-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}