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Allen Bradley 1756-IF8IH ControlLogix Isolated Analog Input Module

Allen Bradley 1756-IF8IH ControlLogix 8-point isolated analog input module.

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ManufacturerAllen Bradley

Part number1756-IF8IH

Number of Inputs 8 current inputs

Input Signal Range 0-20mA, 4-20mA

Resolution 16-21 bits

Isolation 250V DC Reinforced

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CAGE: 9NK75

8 Isolated Current Inputs HART Communications Support High Resolution (16-21 bits) 250V DC Reinforced Isolation Overvoltage Protection

Product description

The Allen-Bradley 1756-IF8IH is an 8-point isolated analog input module for ControlLogix systems. It features 16 to 21 bits of resolution and supports HART communications for enhanced data transmission and diagnostics. This module is designed for accurate monitoring of analog signals, accepting input ranges from 0 to 20 mA (0 to 20.58 mA) and 4 to 20 mA (3.42 to 20.58 mA). It offers reinforced isolation rated at 250 V DC for continuous operation and includes overvoltage protection rated at 28.8 V DC.

This module is ideal for applications requiring precise analog signal acquisition in various industries, including manufacturing, process control, and building automation. Its ability to support HART communications makes it suitable for advanced diagnostic and monitoring tasks within industrial environments. The robust design ensures reliable performance in demanding conditions.

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Technical specifications

Number of Inputs	8 current inputs
Input Signal Range	0-20mA, 4-20mA
Resolution	16-21 bits
Isolation	250V DC Reinforced
HART Communications	Yes
Overvoltage Protection	28.8V DC

Common applications

Process Control

Manufacturing Automation

Data Acquisition

Industrial Monitoring

Building Automation

SCADA Systems

Compatible systems

ControlLogix Controllers

Also known as

Allen Bradley ControlLogix 1756-IF8IH 1756IF8IH Module AB 1756-IF8IH Analog Input

Replaces / compatible with

This module is a standard component within the Allen-Bradley ControlLogix platform and does not typically replace a specific older model but rather expands system capabilities.

Technical note

Expert tip

Ensure proper shielding and grounding for the input wiring to maintain signal integrity and prevent interference, especially when using the HART communication features.

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Frequently asked questions

What are the input specifications for the Allen-Bradley 1756-IF8IH?

The 1756-IF8IH accepts current inputs in the ranges of 0-20 mA (0-20.58 mA) and 4-20 mA (3.42-20.58 mA). It also features overvoltage protection rated at 28.8 V DC and supports HART communications.