Allen-Bradley 1769-IF4 Analog Input Module | CompactLogix PLC

Allen-Bradley 1769-IF4: High-Performance Analog Input Module

The 1769-IF4 from Allen-Bradley (Rockwell Automation) delivers precision analog signal conversion for industrial automation systems. This 4-channel module integrates seamlessly with CompactLogix and MicroLogix 1500 controllers, offering flexible input configurations for both voltage and current signals. Users achieve accurate data acquisition with 14-bit resolution for reliable process monitoring and control.

Key Technical Specifications

• Brand & Model: Allen-Bradley 1769-IF4 Series A/B
• Input Channels: 4 configurable differential or single-ended
• Voltage Input Ranges: ±10V DC, 0-10V DC, 0-5V DC, 1-5V DC
• Current Input Ranges: 0-20 mA, 4-20 mA (0-21 mA full range)
• Resolution: 14-bit (unipolar), 14-bit + sign (bipolar)
• Converter Type: Delta-Sigma ADC technology
• Power Requirements: 33.6W; Backplane Current: 1.4A @ 24V
• Noise Rejection: >60 dB CMRR; -50 dB NMRR (50/60 Hz)

Environmental Ratings & Durability

• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Relative Humidity: 5% to 95% (non-condensing)
• Operating Altitude: Up to 2000 meters (6560 feet)
• Vibration Resistance: 5g (10-500 Hz); Shock: 30g operating
• Enclosure Rating: Open-type; DIN rail or panel mount compatible

Installation & Wiring Guidelines

• Use Belden or equivalent shielded cables (22-14 AWG solid, 22-16 AWG stranded)
• External 24V DC power required (no loop power provided for transmitters)
• Maintain common mode voltage within ±10V maximum per channel
• Follow Rockwell Automation’s Compact I/O mounting guidelines for optimal performance
• Ensure proper grounding for noise immunity and signal integrity

Packaging & Shipping Information

• Package Includes: One 1769-IF4 analog input module
• Shipping Weight: 2 lbs (0.9 kg); Dimensions: 8x8x5 inches (20x20x13 cm)
• Shipped via FedEx, UPS, or DHL based on customer preference and location
• Standard packaging ensures full protection during transit

Frequently Asked Questions

• Q: Does the 1769-IF4 provide loop power for transmitters?
  A: No, an external power supply is required for connected transmitters.
• Q: What controllers support this module?
  A: It works with MicroLogix 1500 and 1769 CompactLogix controllers.
• Q: Can I mix voltage and current inputs on the same module?
  A: Yes, each channel is individually configurable for different signal types.
• Q: What is the resolution of the analog-to-digital conversion?
  A: The module provides 14-bit resolution for unipolar signals and 14-bit + sign for bipolar signals.

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