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Allen-Bradley 1794-OF8IH | Flex I/O HART Analog Output Module

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Allen-Bradley 1794-OF8IH Flex I/O Isolated HART Analog Output Module

The Allen-Bradley 1794-OF8IH provides advanced HART communication capability for process control applications. This intelligent module offers eight isolated analog outputs with high-resolution signal control. It enables seamless integration with HART-enabled field devices for comprehensive process monitoring.

Core Specifications

  • Model: 1794-OF8IH
  • 8 isolated single-ended output channels
  • 0-20 mA or 4-20 mA signal range selection
  • 16-bit high resolution (0.305 µA per bit)
  • 10ms conversion rate with 70ms settling time
  • 80mA FlexBus current draw at 5V DC
  • Weight:0.2kg
  • 5.0W maximum power dissipation

HART Communication Features

  • Built-in HART pass-through messaging capability
  • 8 message queues per communication link
  • Dedicated 6-word HART data register
  • IEEE 754 floating-point data format
  • Direct HART device configuration support
  • Real-time device parameter access

Diagnostics & Protection

  • Lead break detection for wiring faults
  • Overrange and underrange alarm monitoring
  • Continuous signal integrity checking
  • Isolated channels for system protection
  • Enhanced process safety features

Performance Characteristics

  • 17.06 BTU/hr thermal dissipation at 24V DC
  • High accuracy signal generation
  • Fast response times for process control
  • Stable output under varying conditions
  • Industrial-grade reliability

Package Contents

  • 1794-OF8IH HART analog output module
  • Installation and configuration guide
  • HART communication documentation
  • Technical specification sheet

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Source: nex-auto.com
Contact: sales@nex-auto.com | +86 153 9242 9628

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