Allen‑Bradley 1771‑IFE Analog Input Module

The Allen‑Bradley 1771‑IFE is a multi‑channel analog input module for Allen‑Bradley PLC‑5 1771 I/O chassis system. It converts field analog signals into digital data and transmits to PLC‑5 controller for closed‑loop process monitoring and control.

This module supports standard industrial current and voltage input signals, equipped with signal filtering and over‑range detection functions. It is a widely‑used spare part for maintenance and retrofitting of legacy PLC‑5 automation control cabinets.

Main Specifications

Brand: Allen‑Bradley; Model:1771‑IFE; Type: Analog Input Module
Applicable System: PLC‑5 series with 1771 back‑plane chassis
Signal Type: Multi‑channel voltage / current analog input
Function: Analog‑digital conversion, signal filtering and data transmission
Installation: Slot‑mounted inside 1771 PLC rack
Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing
Certifications: CE, compliant with industrial PLC automation standards

Core Functions

Collect field temperature, pressure, flow and other process analog signals.
Complete analog‑digital conversion and filter high‑frequency interference from industrial site.
Transmit converted digital data to PLC‑5 CPU for process closed‑loop regulation.
Detect over‑range and abnormal input signals, feed back status to controller.
Backplane bus connection, support quick plug‑in replacement during on‑site maintenance.
Match legacy AB programming software for channel configuration and calibration work.

Application Scenarios

Legacy production line control cabinets based on Allen‑Bradley PLC‑5 platform.
Process signal acquisition systems for chemical, metallurgy and water‑treatment industries.
Retrofit and spare replacement of legacy 1771 series PLC automation platforms.
Equipment overhaul and analog signal channel fault repair projects.
Spare parts inventory for automation integrators and engineering contractors.
Global aftermarket spare supply for technical teams maintaining Allen‑Bradley industrial hardware.