1771-IFE
Allen Bradley PLC-5 Analog Input Module with 16 Single-Ended or 8 Differential Inputs.

The Allen Bradley 1771-IFE is an analog input module. It is an intelligent block transfer module that interfaces analog input signals with any Allen Bradley programmable controllers that have block transfer capability. Block transfer programming moves input data words from the module's memory to a designated area in the processor data table in a single scan. It also moves configuration words from the processor data table to module memory.

The input module is a single-slot module and requires no external power supply. (If using passive transducers for inputs, the input data is converted to a specified data type in a digital format to be transferred to the processor's data table on request. The block transfer mode in disabled until this input scan is complete. Consequently, the minimum interval between block transfer reads is the same as the total input update time for each analog input module.

Features of the 1771-IFE

The analog input module senses up to 16 single-ended or 8 differential analog inputs and converts them to a proportional four-digit BCD or twelve-bit binary value. You can select from five voltage or three current input ranges. Each input can be configured as a current or voltage input with internal jumpers.

This module's program selectable features include:

• 16 single-ended or 8 differential inputs
• User program selectable input ranges on a per channel basis (see table)
• Selectable real-time sampling
• Selectable scaling to engineering units
• Selectable digital filtering
• Selectable data format

Program Selectable Input Ranges

1771-IFE Technical Specifications