Allen-Bradley 1794-IB16 | FLEX I/O Digital DC Output Module

Product Overview

The 1794-IB16 from Allen-Bradley is a FLEX I/O digital DC output module. It provides sixteen 24V DC current sourcing channels for distributed I/O applications. The module integrates seamlessly with terminal bases like 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3K, and 1794-TB3SK.

This module delivers fast response times with a 0.5-millisecond off-to-on signal delay and 1-millisecond on-to-off delay. Its open-style enclosure and DIN rail mounting allow flexible installation across industrial systems. The module features 16 yellow indicators to provide clear field-side status information.

Technical Specifications

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Part Number/Catalog No.: 1794-IB16

• Product Type: FLEX I/O Digital DC Output Module

• Number of Outputs: 16 sourcing current channels

• Nominal On-State Voltage: 24V DC

• Minimum On-State Voltage: 10V DC

• Maximum On-State Voltage: 31.2V DC

• Output Current Rating: 8A total, 0.5A max per channel

• On-State Voltage Drop Max: 0.5V DC

• Off-State Leakage Current Max: 0.5 mA

• Isolation Voltage: 50V continuous

• FlexBus Current: 80 mA @ 5V DC

• Power Dissipation: 5.3 W @ 31.2V DC max

• Thermal Dissipation: 18.1 BTU/hr @ 31.2V DC max

• Terminal Base Compatibility: 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK

• Mounting Type: DIN rail

• Wire Size: Determined by installed terminal base

• Dimensions (H x W x D): 3.7 × 3.7 × 2.7 inches

• Weight: 78 grams

• Indicators: 16 yellow status LEDs

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

• Storage Temperature: -40–85°C (-40–185°F)

• Vibration: 5g at 10–500 Hz

• Shock: 30g operating

• Enclosure: Open-type

Key Features

• High Precision: Each channel supports 0.5A max with minimal voltage drop.

• Fast Response: Off-to-on delay is 0.5 milliseconds; on-to-off delay is 1 millisecond.

• Wide Compatibility: Works with multiple FLEX I/O terminal bases and adapters.

• Clear Indicators: Sixteen yellow LEDs display real-time output status.

• Robust Design: Withstands vibrations, shocks, and harsh industrial environments.

Applications

• Factory and process automation systems requiring distributed outputs.

• Industrial control panels integrating FLEX I/O modules.

• Machine building for modular and flexible digital output integration.

• Systems requiring reliable DC current sourcing across multiple channels.