Description
Allen-Bradley 1794-IF8IH Flex I/O HART Analog Input Module
The Allen-Bradley 1794-IF8IH delivers advanced HART communication capability within the Flex I/O system from Rockwell Automation. This sophisticated module features eight isolated analog inputs for precise signal acquisition. It enables bidirectional HART communication with smart field devices for enhanced diagnostics.
Core Technical Specifications & Performance Data
- Brand: Allen-Bradley | Model: 1794-IF8IH
- Product Type: HART Analog Input Module for Flex I/O
- Number of Inputs: 8 Isolated Single-ended Channels
- Input Signals: 4-20mA with HART Protocol Support
- Resolution: 16-bit unipolar / 15-bit plus sign bipolar
- Conversion Method: Sigma-Delta for high accuracy
- Power Supply: 19.2-31.2V DC with 5% maximum AC ripple
- Flexbus Current: 80mA @ 5V DC
- Power Dissipation: 4.8W maximum at 31.2V DC
- Thermal Dissipation: 16.4 BTU/hour maximum
- Update Rate: 60ms per channel for all 8 channels
Environmental Ratings & Safety Certifications
- Operating Temperature: 0 to 55 °C (32 to 131 °F)
- Storage Temperature: -40 to 85 °C (-40 to 185 °F)
- Relative Humidity: 5% to 95% non-condensing
- Hazardous Location: Approved for Class I, Division 2 environments
- Vibration Immunity: 5g @ 10-500 Hz per IEC 60068-2-6
- EMC Compatibility: Meets industrial electromagnetic standards
- Isolation Voltage: 250V AC continuous between field and bus
Packaging & Shipping Information
- Your order includes one new 1794-IF8IH module in protective packaging.
- We provide complete installation and configuration documentation.
- We ship worldwide using reliable carriers including FedEx, UPS, and DHL.
- All products include a 12-month warranty covering manufacturing defects.
Comparison With Related Products
- For digital output applications, see the 1794-OC16 module.
- Consider the 1794-OE12 for analog output requirements.
Frequently Asked Questions (FAQ)
- What HART capabilities does this module support?
It supports full HART protocol for device configuration, calibration, and diagnostics. - Can I use this module with non-HART analog devices?
Yes, it works perfectly with standard 4-20mA devices without HART functionality. - What is the typical accuracy of this analog input module?
The module provides ±0.1% of full scale accuracy under specified conditions. - Does this module require special software for HART configuration?
You need Rockwell Automation’s Studio 5000 with HART capability for full functionality. - What is the isolation rating between input channels?
Channels provide 250V AC continuous isolation from each other and from the bus.
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