1794-IE8

Overview

Allen-Bradley 1794-IE8 is a FLEX I/O analog input module providing eight single-ended, non-isolated channels. It is designed for flexible installation with multiple terminal base options and supports precise analog signal acquisition for industrial automation systems.

Input Specifications

• Number of inputs: 8 single-ended, non-isolated

• Resolution:

  • 12 bits (unipolar)

  • 11 bits + sign (bipolar)

• Data format: Left-justified, 16-bit 2’s complement

• Conversion type: Successive approximation

• Conversion rate: 256 µs (all channels)

• Maximum overload: 30 V continuous or 32 mA continuous (one channel at a time)

Indicators

• Status indicator: 1 green LED (power)

Module Location

• Compatible terminal bases:

  • 1794-TB2

  • 1794-TB3

  • 1794-TB3S

  • 1794-TB3T

  • 1794-TB3TS

Isolation and Protection

• Isolation voltage: Tested at 850 V DC for 1 s (user power to system)

• Channel isolation: None (no isolation between individual channels)

Power Specifications

• Flexbus current: 20 mA

• Power dissipation: 3.0 W maximum @ 31.2 V DC

• Thermal dissipation: 10.2 BTU/hr maximum @ 31.2 V DC

Mechanical Specifications

• Dimensions (L × W × H): 5.4 × 9.4 × 4.57 cm

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