Overview
The Allen-Bradley 1769-IF4 Series B Analog Input Module is a CompactLogix Compact I/O module designed to acquire analog signals from field instruments and sensors. This module features four (4) input channels and is designed to interface field devices that send 0-21 mA and ±10VDC analog signals. The 1769-IF4 delivers 16-bit resolution for precise data conversion, enabling accurate measurement of voltage and current inputs across industrial automation applications.
Key Features
- Supports differential inputs, single-ended sensor and transmitter inputs, and mixed transmitter inputs
- Supports ±10V DC, 0 to 10V DC, 0 to 5V DC, and 1 to 5V DC voltage ranges, and 0 to 20 mA, 4 to 20 mA current ranges
- Internal open-circuit detection is automatically enabled when a channel is enabled, activating the under-range error bit
- Channel-to-ground isolation improves signal integrity and system safety
- Can be fine-tuned with provided parameters such as process alarms, input filters, real-time sampling, and alarm deadband
- Channels can auto-calibrate when first engaged or when configuration differs from the previous channel
Technical Specifications
- Input Channels: Four (4) input channels
- Signal Types: Single-ended or differential inputs
- Voltage Range: 10.5V dc, -0.5 to 10.5V dc, -0.5 to 5.25V dc (full-scale)
- Current Range: 0 to 21 mA, 3.2 to 21 mA (full-scale)
- Resolution: 14-bit (unipolar) and 14-bit plus sign (bipolar) resolution
- Conversion Type: Delta-Sigma conversion type ADC
- Power Supply: 20.4 to 26.4 Volts DC with 60 milliamps minimum current rating
- Isolation: Channel-to-ground isolation
- Common Mode Rejection: More than 60 dB at 50 and 60 Hz
- Dimensions: 87 mm x 35 mm x 118 mm
- Mounting: DIN rail or panel mount
- Enclosure: Open-type
- Wiring: Compatible with solid 22-14 AWG and stranded 22-16 AWG cables
Typical Applications
When errors are detected by the module, the controller can display a non-fatal system error which may be linked to monitoring systems such as a Human Machine Interface (HMI) or Supervisory Control and Data Acquisition (SCADA). The 1769-IF4 is commonly used in:
- Process monitoring and temperature acquisition
- Pressure and flow measurement
- Multi-sensor industrial control systems
- Manufacturing automation with analog feedback
- Environmental and facility monitoring
Compatibility & Replacements
Compatible With
- MicroLogix 1500 and 1769 CompactLogix family of controllers
- 1769 CompactLogix chassis
- RSLogix 500 or RSLogix 5000 / Studio 5000 programming environments
- PowerFlex drives and other devices through Compact I/O to DPI/SCANport and Compact I/O to DSI/Modbus modules
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1769-IF4 Series B is the current production version; consult Rockwell Automation documentation for superseded or legacy module part numbers.
Works With
- RSLogix 500 and RSLogix 5000 / Studio 5000 programming software
- Compact I/O bus interface
- CompactLogix 1769 platform communication
- Analog signal conditioning and scaling in controller firmware
