1756-IF8IH | Allen-Bradley ControlLogix 8 Pt A/I HART Isolated Module

Overview

The Allen-Bradley 1756-IF8IH is a high-precision ControlLogix analog input module featuring 8 isolated differential channels with integrated HART communication. Designed for reliable process monitoring, this module ensures accurate analog data acquisition in industrial automation environments.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: ControlLogix

• Model / Part Number: 1756-IF8IH

• Product Type: Isolated Analog Input Module with HART Protocol

• Module Type: 8-Point Differential Analog Input (Isolated)

• Analog Input Range: 0–20 mA or 4–20 mA

• Resolution: 16–21 Bits

• Enclosure Type: Open

• Overvoltage Protection: ±24 V DC

• HART Protocol: Dedicated modem for communication on each channel

• Backplane Compatibility: ControlLogix chassis

• Removable Terminal Blocks: Compatible with standard 1756 series terminal blocks

• Weight: 0.50 lbs (0.23 kg)

Key Features

• Fully isolated channels to prevent cross-talk and improve signal integrity

• HART-enabled inputs for advanced digital communication alongside analog measurements

• High-resolution acquisition suitable for critical process monitoring

• Compact open-style module for flexible installation in ControlLogix racks

• Reliable ±24 V overvoltage protection for enhanced durability

Application Scenarios

• Industrial process monitoring and control requiring isolated analog inputs

• Integration with ControlLogix controllers for high-accuracy data acquisition

• HART-compatible field device measurement and diagnostic applications

• Multi-channel analog input for process automation and SCADA systems

FAQs

Q: How many channels support HART simultaneously?
A: All 8 channels support HART communication simultaneously for real-time diagnostics.

Q: What is the input signal range?
A: The module accepts 0–20 mA and 4–20 mA signals.

Q: Is the module isolated?
A: Yes, all 8 channels are fully isolated to prevent interference between inputs.