1771-IFE A 1771-IFEA Allen Bradley analog input module 12 BIT

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Product Details

The Analog input module is an intelligent block transfer module that interfaces analog input signals with any AB 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 input, the user must supply loop power.) After scanning the analog 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 is 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.

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 features include:

16 single-ended or 8 differential inputs on one card

User program selectable input ranges on a per channel basis (Table 1.A)

Selectable real-time sampling

Selectable scaling to engineering units

Selectable digital filtering

Selectable data format

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