Allen-Bradley 1756-IF16H ControlLogix 16-Point Analog Input HART Module

Overview

The Allen-Bradley 1756-IF16H is a high-performance ControlLogix analog input module supporting HART protocol on each channel. It provides 16 differential analog inputs with dedicated HART modems, suitable for precise process control and integration with PanelView Plus operator terminals.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: ControlLogix

• Model / Part Number: 1756-IF16H

• Product Type: Analog Input Module with HART Protocol

• Module Type: 16-Point Differential Analog Input with Dedicated HART Modems

• Analog Signal Range: 0–20 mA, 4–20 mA

• Resolution: 16–21 Bits

• Data Format: Integer mode (left-justified, 2’s complement), IEEE 32-bit floating point

• Conversion Method: Successive approximation

• Module Scan Time: 11–328 ms (filter dependent)

• HART Scan Time: Approx. 1 s when all channels enabled

• Inputs: 16 differential

• Backplane Current: 5.1V DC – 200 mA; 24V DC – 125 mA

• Total Backplane Power: 4.02 W

• Input Overvoltage Protection: 8 V DC

• Isolation Voltage: 50 V continuous

• Removable Terminal Block: 1756-TBCH; 1756-TBS6H

• Enclosure Type: Open

Key Features

• Dedicated HART modem per channel for precise digital communication

• Supports high-resolution analog input conversion

• Flexible scan rates with filter options for signal stabilization

• Compatible with PanelView Plus operator terminals and ControlLogix controllers

• Removable terminal blocks simplify wiring and maintenance

Application Scenarios

• Industrial process monitoring requiring HART-enabled devices

• Multi-channel analog signal acquisition in ControlLogix systems

• Integration with PanelView Plus and PanelView Plus CE operator terminals

• Precise measurement and data acquisition in process automation

FAQs

Q: Can all channels run HART simultaneously?
A: Yes, all 16 channels can operate HART protocol simultaneously, with an estimated 1-second scan per module.

Q: What type of analog inputs are supported?
A: 16 differential channels supporting 0–20 mA and 4–20 mA signals.

Q: Is there overvoltage protection?
A: Yes, each input channel supports up to 8 V DC overvoltage protection.