Analog Output Module Allen-Bradley 1794-OE8H HART Compatible

Product Overview

The Allen-Bradley 1794-OE8H is a FLEX I/O HART analog output module. It offers 8 analog outputs. The default current range is 0 to 20 mA. Users can set it to 4 to 20 mA. The module supports HART communication. It provides local microprocessor intelligence. Lead breakage detection is a key feature. The module operates without jumpers or switches. This design simplifies setup and maintenance. The 1794-OE8H is part of the Rockwell Automation Flex I/O family. It integrates seamlessly with control systems. This module is ideal for analog field device control.

Application Scenarios

This module fits many industrial applications. Use it in process control environments. It works well with remote transmitters. The module handles overrange and underrange alarms. It is suitable for chemical plants. It also works in oil and gas facilities. Manufacturing lines benefit from its reliability. The 1794-OE8H controls valves and actuators. It manages flow and pressure loops. Water treatment plants use it for precise dosing. The module is a cost-effective solution. It reduces wiring by combining analog and HART signals.

Technical Specifications

• Brand: Allen-Bradley / Rockwell Automation
• Series: Flex I/O 1794
• Product type: FLEX I/O HART module
• Number of outputs: 8
• Output type: Analog
• Output current range: 0 to 20 mA or 4 to 20 mA
• Ambient temperature: 25 degrees Celsius (±5°C)
• Channel connections: Electrically connected
• Indicators: Power and I/O status
• Lead breakage detection: Yes
• Field repairable: No (replace or return to factory)
• Mounting: Terminal base unit with keyswitch

The module provides 8 non-isolated analog outputs. It supports multiple data ranges. The module uses HART protocol for smart device configuration. The indicators show power and I/O activity.

Installation & Maintenance Guide

Mount the module on a terminal base unit. Rotate the keyswitch to lock it in place. Wire the terminal base before changing the keyswitch. Do not change keyswitch position after wiring. The module does not require jumpers. It automatically configures itself. Remove any dirt or debris from contacts. Check indicators for proper status. If the module fails, do not attempt field repair. Replace it with a new unit. Send faulty units to the manufacturer. Use only authorized shipping methods (Fedex, UPS, DHL). Keep the module within rated temperature.

Packing List

Each shipment includes one 1794-OE8H module. It also includes a user manual. The module is protected in anti-static packaging. Ensure all items are present upon delivery. No other accessories are included. Contact supplier for replacement parts.