Allen-Bradley 1794-OF8IH | FLEX I/O Isolated HART Output Module

Product Overview

The Allen-Bradley 1794-OF8IH is an isolated analog output module from the 1794 FLEX I/O series. It provides eight independent outputs, configurable for 0–20 mA or 4–20 mA ranges, with 16-bit resolution. This module integrates HART capability, enabling advanced diagnostics and field device communication.

With a fast 10-millisecond conversion rate, the 1794-OF8IH ensures accurate real-time output. Its design eliminates the need for jumpers or switches, allowing engineers to configure data ranges per channel. Built-in lead-break detection and alarms for underrange and overrange conditions enhance system reliability.

Key Technical Specifications

Performance and Integration

The 1794-OF8IH supports seamless integration into FLEX I/O systems, locking securely into a terminal base such as 1794-TB3 or 1794-TB3S. Its robust HART pass-through function supports up to two connections with eight queues each, ensuring efficient communication with HART-enabled devices.

With factory calibration, engineers can rely on the 1794-OF8IH for precise signal accuracy. Power dissipation of 5 Watts and thermal dissipation of 17.06 BTU/hr ensure reliable thermal management during continuous operation.

FAQs

Q1: Is the Allen-Bradley 1794-OF8IH brand new or refurbished?
A1: We only supply 100% brand-new, original, factory-sealed modules.

Q2: What delivery time can I expect for the 1794-OF8IH?
A2: We ship within 3 days to 2 weeks depending on order volume and logistics. Carriers include DHL and FedEx.

Q3: What terminal bases are compatible with the 1794-OF8IH?
A3: It installs on 1794-TB3 or 1794-TB3S terminal bases.

Q4: What is the output resolution of the 1794-OF8IH?
A4: It delivers 16-bit resolution with accurate signal conversion.

Q5: What is the operating temperature range of the 1794-OF8IH?
A5: It operates from 32 °F to 131 °F (0 °C to 55 °C) and stores safely down to -25 °C.