Allen-Bradley 1794-IF8IH | FLEX I/O HART Analog Module

Product Overview

The 1794-IF8IH is an Allen-Bradley FLEX I/O HART Analog Module designed for high-performance industrial automation applications. It features 8 isolated single-ended inputs compatible with 1794-TB3 and 1794-TB3S terminal bases.

Engineered with Sigma-Delta conversion, the 1794-IF8IH supports both unipolar (16-bit) and bipolar (15-bit plus sign) resolutions, ensuring precise analog signal measurement. Its open enclosure design allows easy integration into existing PLC systems while maintaining safe operation in industrial environments.

The module operates within an external DC voltage range of 19.2 to 31.2 Volts with a 5% AC ripple tolerance, providing reliable power for consistent signal acquisition. Its compact size of 3.7 x 3.7 x 2.6 inches ensures efficient use of panel space without compromising functionality.

With operating temperatures between 32°F and 131°F (0–55°C), the 1794-IF8IH maintains performance in typical industrial conditions. It is suitable for systems requiring high precision HART communication and robust input isolation.

Key Features

• 8 isolated single-ended analog inputs

• Compatible with Allen-Bradley 1794-TB3 and 1794-TB3S terminal bases

• Sigma-Delta conversion supporting unipolar 16-bit and bipolar 15-bit resolutions

• External DC voltage rating: 19.2–31.2V DC

• Compact dimensions: 3.7 x 3.7 x 2.6 inches

• Operating temperature: 32–131°F (0–55°C)

• Open enclosure type for flexible installation

• Supports HART communication protocol

• UPC: 10612598346902

Technical Specifications

Applications

The 1794-IF8IH is ideal for industrial control applications requiring precise analog input measurement, HART communication, and reliable integration with Flex I/O systems. It enhances the capabilities of PLC-based automation systems in manufacturing, chemical, and process industries.

FAQ

Q1: Is the 1794-IF8IH original?
A1: Yes, the 1794-IF8IH is 100% factory-new and fully original from Allen-Bradley.

Q2: How quickly can it be shipped?
A2: We keep stock on hand; shipping occurs within 3 days to 2 weeks depending on order size, usually via DHL.

Q3: Which terminal bases are compatible?
A3: The module is compatible with 1794-TB3 and 1794-TB3S Flex I/O terminal bases.

Q4: What type of conversion does it use?
A4: The 1794-IF8IH uses Sigma-Delta conversion supporting unipolar and bipolar resolutions.

Q5: What is the operating voltage range?
A5: The module operates reliably with an external DC voltage range of 19.2 to 31.2 Volts.