Allen-Bradley 1794-IE12 – Flex I/O High-Density Analog Input Module

Overview

The Allen-Bradley 1794-IE12 is a high-density analog input module from the Flex I/O series. It provides twelve single-ended input channels and supports multiple signal types, including voltage and current. This module is ideal for industrial automation systems and integrates seamlessly with devices such as transmitters, controllers, and indicators.

Key Features

• 12 single-ended, non-isolated input channels.

• Supports both voltage and current signals: 0-20 mA, 4-20 mA, 0-10 VDC, ±10 VDC.

• High-resolution analog input: 320 µV/count for voltage, 0.641 µA/count for current.

• Fast conversion rate of 8.0 ms across all channels.

• Successive approximation analog-to-digital conversion.

• Status indication via green/red power/status LED.

• Compact design with robust industrial performance.

• Isolation voltage of 50 V continuous.

• Shock and vibration resistance for harsh environments.

Technical Specifications

• Manufacturer: Rockwell Automation (Allen-Bradley)

• Model: 1794-IE12

• Product Type: Flex I/O High-Density Analog Input Module

• Input Channels: 12 single-ended, non-isolated

• Signal Types Supported:

• Current: 4-20 mA, 0-20 mA

• Voltage: ±10 VDC, 0-10 VDC

• Resolution:

• Voltage: 320 µV/count

• Current: 0.641 µA/count

• Conversion Type: Successive Approximation

• Conversion Rate: 8.0 ms (all channels)

• Data Format: 16-bit, left-justified

• Accuracy:

• Absolute: 0.1% full scale at 25 °C

• Drift: 0.004% full scale/°C

• Input Step Response:

• General: 1.3 s

• Quick Step: 0.09 s

• Power Supply: 24V DC nominal (10 to 31.2 VDC range)

• Power Dissipation: 1.2 W @ 31.2 VDC

• Thermal Dissipation: 4.1 BTU/hr

• Vibration Resistance: 5g at 10–500 Hz

• Shock Resistance: 30g operating, 50g non-operating

• Operating Temperature: 0 to 55 °C

• Storage Temperature: -40 to 85 °C

• Dimensions (L x W x H): 5.33 cm × 9.4 cm × 9.4 cm

• Weight: 0.35 lbs

The 1794-IE12 is an ideal solution for applications requiring high-density analog input with precise measurement, fast response, and reliable operation in industrial environments.