{"product_id":"1769-if4-compactlogix-4-ch-analog-input-module-allen-bradley","title":"1769-IF4 CompactLogix 4-Ch Analog Input Module Allen-Bradley","description":"\u003ch3\u003e\u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e CompactLogix 4-Channel Analog Input Module Architecture\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e provides multi-channel analog signal acquisition for industrial automation platforms. Designed for integration within \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1769-compactlogix\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1769 CompactLogix\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e control architectures and MicroLogix 1500 controller banks, this high-density input module converts real-world analog process field signals into 16-bit digital registers. Instrumentation engineers deploy this unit to interface pressure transmitters, thermal sensors, flow meters, and position feedback devices directly into central PLC processors.\u003c\/p\u003e\n\u003cp\u003eThis module features four individually configurable input channels supporting both differential and single-ended wiring topologies. The internal Delta-Sigma Analog-to-Digital Converter (ADC) processes flexible current ranges (0-20mA, 4-20mA) and voltage ranges (±10V DC, 0-10V DC, 0-5V DC, 1-5V DC). Integrated auto-calibration routines execute automatically upon channel initialization to maintain precise signal processing across changing operating environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e Technical Parameters \u0026amp; Performance Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCatalog Model Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1769 Compact I\/O Series\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Controllers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompactLogix System Controllers; MicroLogix 1500 Expansion Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Differential or Single-Ended Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConverter Type \u0026amp; Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDelta-Sigma ADC; 14 bits unipolar, 14 bits plus sign bipolar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Signal Ranges\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormal: 0-20mA, 4-20mA; Full Range: 0-21mA, 3.2-21mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Signal Ranges\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormal: ±10V, 0-10V, 0-5V, 1-5V DC; Full: ±10.5V, -0.5 to 10.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110mA at 5V DC; 60mA at 24V DC (1.4A at 24V DC max system rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption \u0026amp; Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33.6 Watts Max Power Consumption; 7.5 Watts Power Dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Distance Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 Modules (Maximum modules installed from power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon \u0026amp; Normal Mode Rejection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMRR \u0026gt; 60 dB; NMRR -50 dB at 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature \u0026amp; Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to +60°C (32°F to 140°F); 5% to 95% Non-Condensing RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Weight \u0026amp; Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.91 kg (2.0 lbs shipping weight); 87 x 35 x 118 mm module size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Wiring, Open-Circuit Detection \u0026amp; Onboard Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e includes built-in real-time diagnostic parameters to protect process loops. When an input channel is enabled, internal open-circuit detection automatically activates. If a field wire breaks or a sensor loses power, the module sets an under-range error bit and triggers a non-fatal system fault in the controller software, which can immediately post alerts to local HMI screens or SCADA monitoring centers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Data Formats:\u003c\/strong\u003e Data can be scaled directly into Engineering Units, Percent Range, Scaled for PID, or Raw 16-bit Integer values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Power Notice:\u003c\/strong\u003e The module does not provide internal 24V DC loop power; external loop power supplies are required for 2-wire field transmitters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Wiring Cables:\u003c\/strong\u003e Requires Belden 8761 (or equivalent) individually shielded twisted-pair cables with wire sizes from 22 to 14 AWG solid or 22 to 16 AWG stranded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Status Indication:\u003c\/strong\u003e Onboard LED indicators report module health, power status, and channel operational condition in real time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment \u0026amp; Industrial Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Variable Monitoring:\u003c\/strong\u003e Continuous pressure, level, and volumetric flow rate tracking in water treatment facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed \u0026amp; Motion Control Loops:\u003c\/strong\u003e Reading 0-10V tachometer outputs or 4-20mA feedback signals from Variable Frequency Drives (VFDs).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Enclosure Surveillance:\u003c\/strong\u003e Interfacing multi-point temperature transmitters across pharmaceutical processing skids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging \u0026amp; Assembly Machinery:\u003c\/strong\u003e Integrating linear position feedback sensors into automated material handling lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eLogistics, Packaging \u0026amp; Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Package Includes:\u003c\/strong\u003e Factory-sealed \u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e analog module assembly, terminal block cover, and installation manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Express Dispatch:\u003c\/strong\u003e Orders process and dispatch within 24 to 48 hours via global express couriers (FedEx, UPS, DHL).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Month Guarantee:\u003c\/strong\u003e Includes a full 12-month operational replacement warranty backed by our global inventory network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB Field Engineering Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn field retrofits involving the \u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e module, improper shield grounding and exceeding distance ratings are the two most common causes of signal noise. During an commissioning audit at a municipal pumping station, field technicians observed erratic level readings on channel 2. The issue was traced to ground loop noise caused by connecting cable shields at both the field sensor head and the module chassis.\u003c\/p\u003e\n\u003cp\u003eOur engineering team corrected the fault by grounding cable shields strictly at the PLC enclosure chassis earth bus. Furthermore, engineers must strictly observe the \u003cstrong\u003ePower Supply Distance Rating of 8\u003c\/strong\u003e. Placing the module more than 8 slots away from the 1769 power supply causes internal backplane voltage drops, resulting in channel auto-calibration failures and intermittent under-range fault bits.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions \u0026amp; Field Operational Advice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I mix 4-20mA current signals and 0-10V DC voltage signals on the same module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The four channels on the \u003cstrong\u003eAllen-Bradley \u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e are individually software-configurable in Studio 5000 \/ RSLogix 5000. You can wire Channel 0 for 4-20mA current while setting Channel 1 for ±10V DC voltage without cross-channel signal interference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1769-IF4 module supply 24V DC power directly to 2-wire field transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. This module acts strictly as a signal receiver and does not provide loop excitation voltage. 2-wire pressure or flow transmitters require an external 24V DC power supply wired in series with the input current terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the key difference between single-ended and differential field wiring on this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Single-ended wiring connects multiple sensors to a common ground return, saving terminal points. Differential wiring uses dedicated positive and negative signal terminals for each channel, providing superior common mode noise rejection in electrically noisy industrial plants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is the module throwing an under-range error bit on a newly connected 4-20mA loop?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: An under-range bit typically indicates an open circuit (broken wire), reversed polarity, or a current signal dropping below 3.2 mA. Verify terminal wire tightness, measure loop current with a multimeter, and check that the channel jumper block is correctly positioned for current mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the power supply distance rating affect module layout in a CompactLogix rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The distance rating of 8 means the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1769-IF4\u003c\/span\u003e\u003c\/strong\u003e must be mounted within 8 module slots of the 1769 system power supply. Exceeding this distance causes excessive backplane voltage drop, which destabilizes internal ADC conversion circuits.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013910192310,"sku":"1769-IF4","price":176.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1769-IF4_55b1bf34-4c1d-488d-85e7-54128f227bcf.jpg?v=1787814251","url":"https:\/\/www.plcsparehub.com\/products\/1769-if4-compactlogix-4-ch-analog-input-module-allen-bradley","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}