Allen-Bradley 1756-OF8IHK ControlLogix HART Output Module

Product Overview

The Allen-Bradley 1756-OF8IHK is a high-performance ControlLogix HART I/O module. It provides eight isolated differential output channels. Each channel includes a dedicated HART modem. This design ensures reliable signal integrity in noisy environments. The module offers 15-bit resolution across 24 milliamperes. It supports current ranges from 0-20 mA and 4-20 mA. Overvoltage protection is rated at +/- 24 Volts DC. The open-style enclosure includes a conformal coating for protection.

Application Scenarios

This module works well in process control applications. Use it for precise valve positioning or actuator control. The HART capability allows for remote device diagnostics. It fits into oil and gas, chemical, and water treatment plants. The isolated outputs prevent ground loop issues. Use it with ControlLogix systems for seamless integration. It supports both analog output and digital HART communication.

Technical Specifications

The module has 8 isolated differential outputs. Each output has a HART modem. The input current range is 0-20 mA and 4-20 mA. Overvoltage protection is +/- 24 Volts DC. Resolution is 15 bits across 24 mA. The HART scan time is 1 second when enabled. The enclosure type is none, which is open-style. Conformal coating is applied for environmental resistance. The module is part of the ControlLogix series.

Installation & Maintenance Guide

Install the module into a ControlLogix chassis. Ensure proper grounding before use. Connect wires to the terminal block securely. Use shielded cables for HART communication. Do not exceed the voltage limits. Regularly check for firmware updates. Keep the module free from dust and moisture. The conformal coating helps resist corrosion. For maintenance, power down before removal.

Packing List

You will receive one Allen-Bradley 1756-OF8IHK module. It comes with a protective anti-static bag. No cables or terminal blocks are included. The module is brand new in original packaging. Shipping is via FedEx, UPS, or DHL. We insure all shipments for full value.