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Allen Bradley 1756-IF8 ControlLogix 8-Point Analog Input Module

Allen Bradley 1756-IF8 ControlLogix 8-Point Analog Input Module.

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ManufacturerAllen Bradley

Part number1756-IF8

Channels 8

Input Types +/-10VDC, 0-10VDC, 0-5VDC, 0-20 mA

Resolution 15-bit (+/-10VDC), 16-bit (others)

Voltage 5.1V DC (Backplane), 24V DC (Max)

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8 Single-ended/Differential Inputs Configurable Input Ranges High Resolution Conversion Real-time Sampling Wire-off Detection Process Alarms

Product description

The Allen-Bradley 1756-IF8 is an analog input module from the ControlLogix family, designed to interface with analog signal-generating instruments and devices. It features eight single-ended, differential input channels that are configurable for +/-10VDC, 0-10VDC, 0-5VDC, and 0-20 mA input signals. The module offers high resolution with 15 bits for +/-10VDC and 16 bits for other signal types, along with features like under-range/over-range detection, process alarms, and wire-off detection.

This module is ideal for applications requiring precise analog signal acquisition, commonly found in process control, manufacturing, and automation systems. It interfaces with devices such as transmitters, transducers, signal splitters, and panel meters, providing critical data for system monitoring and control.

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Technical specifications

Channels	8
Input Types	+/-10VDC, 0-10VDC, 0-5VDC, 0-20 mA
Resolution	15-bit (+/-10VDC), 16-bit (others)
Voltage	5.1V DC (Backplane), 24V DC (Max)
Current	150 mA (Max @ 5.1V DC), 40 mA (Max @ 24V DC)
Mounting	Chassis
Isolation Voltage	50V Continuous max.

Common applications

Process Control

Manufacturing Automation

Data Acquisition

Instrumentation

SCADA Systems

Industrial Monitoring

Compatible systems

ControlLogix Controllers

Also known as

Allen Bradley ControlLogix Analog Input 1756 IF8 AB 1756-IF8

Replaces / compatible with

This module is part of the ControlLogix platform and is designed for direct replacement or as an upgrade within compatible systems.

Technical note

Expert tip

Ensure proper terminal block (1756-TBCH or 1756-TBSH) is selected and keyed correctly for the 1756-IF8 module to prevent incorrect wiring.

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Frequently asked questions

What types of analog signals can the Allen Bradley 1756-IF8 module handle?

The Allen Bradley 1756-IF8 module can handle voltage signals including +/-10VDC, 0-10VDC, and 0-5VDC, as well as current signals of 0-20 mA. This versatility allows it to integrate with a wide range of analog input devices.