Allen-Bradley 1794-IB32 – Flex I/O DC Input Module

Overview

The Allen-Bradley 1794-IB32 is a Flex I/O DC input module with thirty-two (32) sinking current input channels. It operates over a voltage range of 19.2–31.2 VDC and integrates seamlessly with Flex I/O communication adapters and terminal bases, including 1794-TB32, 1794-TB32S, 1794-TB62DS, and 1794-TB62EXD4X15. This module is ideal for industrial automation systems requiring high-density digital inputs.

Key Features

• 32 current sinking input channels.

• Compatible with Flex I/O communication adapters: Ethernet, ControlNet, Remote I/O.

• High-density input channels with individual LED status indicators for monitoring activity.

• Supports various field devices such as pushbuttons, limit switches, proximity sensors, float switches, process switches, and relay contacts.

• Open-style enclosure for DIN rail mounting.

• Robust design with vibration and shock resistance.

Technical Specifications

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Product Family: Flex I/O

• Product Type: Flex I/O Digital Input Module

• Part Number/Catalog No.: 1794-IB32

• Number of Inputs: 32 current sinking

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

• On-state Voltage: 19.2–31.2 VDC

• Off-state Voltage: Maximum 5 VDC

• On-state Current: 2.0–6.0 mA

• Off-state Current: Maximum 1.5 mA

• Nominal Input Impedance: 22.2 kΩ

• Flexbus Current: 30 mA at 5 VDC

• Power Dissipation: 6 W at 31.2 VDC maximum

• Indicators: 32 yellow LED status indicators

• Mounting: DIN rail

• Dimensions: 94 × 94 × 69 mm (3.7 × 3.7 × 2.7 in.)

• Enclosure Type Rating: None (open-style)

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

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

• Vibration Resistance: 5 g @ 10–500 Hz

• Shock Resistance: 30 g

Description

The 1794-IB32 module is a high-density digital input interface for Flex I/O systems. It allows seamless integration of up to thirty-two (32) DC input devices into an automated control system. Each channel features a dedicated LED indicator for easy verification and monitoring of input activity, simplifying troubleshooting and maintenance. The module is compatible with a wide range of Flex I/O communication adapters and supports extensive deployment, adhering to Flex I/O installation requirements.