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Allen Bradley 1756-OF8IHK ControlLogix HART Analog Output Module

Allen Bradley 1756-OF8IHK ControlLogix HART Analog Output Module.

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ManufacturerAllen Bradley

Part number1756-OF8IHK

Channels 8 Isolated Differential Outputs

Output Range 0-20 mA, 4-20 mA

Resolution 15 Bits

HART Protocol Yes

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8 isolated analog outputs HART communication per channel 4-20 mA output 15-bit resolution ControlLogix modular design Conformal coating

Product description

The Allen Bradley 1756-OF8IHK is a ControlLogix HART I/O module designed to provide eight isolated differential analog outputs. Each channel supports 0-20 mA and 4-20 mA current ranges with a resolution of 15 bits. It also features an integrated HART modem on each channel, enabling digital communication alongside the analog signal.

This module is integral to process control applications in industries such as oil and gas, chemical, and water/wastewater. Its ability to provide both analog output and HART digital communication makes it suitable for advanced process instrumentation and control loops, offering enhanced diagnostics and configuration capabilities.

Stanlo Automation offers the Allen Bradley 1756-OF8IHK, providing a reliable source for this specialized I/O module. Our veteran-owned business ensures quality parts and dependable service for your industrial automation needs.

Technical specifications

Channels	8 Isolated Differential Outputs
Output Range	0-20 mA, 4-20 mA
Resolution	15 Bits
HART Protocol	Yes
Isolation Voltage	250V Continuous
Backplane Current	220 mA @ 5.1V DC, 360 mA @ 24V DC

Common applications

Process Control

Oil & Gas

Chemical Processing

Water/Wastewater

Power Generation

Food & Beverage

Compatible systems

ControlLogix Controllers (e.g., 1756-L5x, 1756-L6x, 1756-L7x series) via ControlNet or EtherNet/IP

Also known as

Allen Bradley ControlLogix HART Output Module 1756 OF8IHK

Replaces / compatible with

Replaces or is compatible with other Allen Bradley ControlLogix analog output modules requiring HART communication.

Technical note

Expert tip

The 1756-OF8IHK module requires a ControlLogix chassis and power supply. Ensure appropriate RTB or IFM module is selected for field wiring termination.

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Frequently asked questions

What is the primary function of the Allen Bradley 1756-OF8IHK module?

The Allen Bradley 1756-OF8IHK is an analog output module that provides eight channels of 4-20 mA current output. It uniquely integrates HART communication capabilities on each channel, allowing for advanced diagnostics and configuration of HART-compliant field devices.