Allen-Bradley 1769-IF4 SER B Compact I/O 4-Channel Analog Input Module

The Allen-Bradley 1769-IF4 Series B is a high-performance Compact I/O analogue input module that is made to accurately monitor industrial sensors in CompactLogix and MicroLogix systems. This module has four channels and can take both voltage and current inputs. It reliably converts data for automation tasks like monitoring machines and controlling processes.

This little module fits well into Rockwell Automation’s 1769 I/O bus, allowing transmitters and sensors to connect in either a differential or single-ended way. With a Delta-Sigma converter, it has 14-bit resolution (unipolar) or 14 bits + sign (bipolar), and you may set the filters to get rid of noise in rough conditions. The Series B improvements include an external 24V DC power switch that lets you power the device in a flexible way, either through the bus or an alternative external source (20.4–26.4V DC, 60mA min). This device is perfect for marine, industrial, and automation systems. It guarantees ±0.2% accuracy on voltage and ±0.35% accuracy on current at 25°C, and it automatically calibrates itself to keep working well.

Technical Specifications: Allen-Bradley 1769-IF4

Allen-Bradley 1769-IF4 Key Features:

1) Flexible Input Configuration: Supports mixed voltage/current signals across 4 channels with adjustable ranges and filters (10-500Hz choices) for the best noise immunity in industrial environments.

2) Advanced Diagnostics: Status bits let you see if something is too high or too low in real time, and the module OK LED makes it easy to fix problems and keep the system running smoothly.

3) Auto-Calibration: Automatically calibrates itself when the channel is turned on or the configuration is changed, making sure that it is very accurate without any help from a person.

4) Strong design: It can handle vibrations and shocks (5G/30G operation), and it works with Belden 8761 shielded cables, which makes it great for controlling naval equipment in noisy places.

5) Easy to set up: Plug-and-play bus connection with RSLogix/Studio 5000; the power supply can reach up to 8 modules.

Allen-Bradley 1769-IF4 Manual Guide

Download Manual File

Usage Instructions

-> Channel Wiring: Use shielded twisted-pair cable to connect sensors and transmitters. For setups that are sensitive to noise, wire the differential (Vin+ to V/Iin-, Iin+ to current) and ground shields at the module end.

-> Power Setup: Use bus power by default, or flip the external switch for a separate 24V DC supply. For external use, make sure the supply is Class 2 to avoid problems.

-> Set the input type/range, filter, and data format (raw, scaled-for-PID, engineering units) through the controller program. Turn on channels one at a time.

-> Monitoring: Read the input image file for data/status (over/under flags in words 4–5); add it to the PLC logic for PID loops or alerts in automation sequences.

Applications

Perfect for industrial automation, this module excels in monitoring pressure, temperature, flow, and level sensors in marine tech, manufacturing, and process plants. Its high impedance (220kΩ voltage, 250Ω current) suits 2/4-wire transmitters without loop power provision. Pair with CompactLogix for scalable systems demanding SEO-optimized reliability in “Allen-Bradley 1769-IF4 buy” searches.