Allen Bradley FLEX I/O 1794-IB16 16-Channel DC Digital Input Module

Product Description

The Allen Bradley FLEX I/O 1794-IB16 module is a compact 16‑point DC digital input unit designed for distributed control applications. It supports sinking inputs and provides reliable signal monitoring with integrated status indicators. This module is engineered for use with FLEX terminal bases, offering flexibility in installation and wiring configurations.

Technical Specifications

• Manufacturer: Allen Bradley

• Product Line: FLEX I/O 1794

• Catalog Number / Model: 1794-IB16

• UPC: 612598137787

• Product Type: Digital Input Module

• Weight: 0.19 lbs (0.09 kg)

• Terminal Base Compatibility: 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBKD, 1794-TB37DS

• Number of Inputs: 16 sinking inputs

• Nominal Input Voltage: 24 VDC

• On-State Voltage Range: 19.2–31.2 VDC

• On-State Current Range: 2.0–12.0 mA

• Off-State Voltage (Max): 5 VDC

• Off-State Current (Max): 1.5 mA

• Nominal Input Impedance: 4.6 kΩ

• Indicators: 16 yellow LED status indicators

• Flexbus Current Draw: 30 mA @ 5 VDC

• Power Dissipation: 6.1 W @ 31.2 VDC (max)

• Mounting: DIN rail installation

• Wire Size: Determined by terminal base selection

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

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

• Vibration Resistance: 5 g @ 10–500 Hz

• Shock Resistance: 30 g

Application Scenarios

• Distributed control systems requiring multiple DC input points

• Manufacturing automation with high-density signal monitoring

• Energy and utility systems where compact modular I/O is essential

FAQ

Q: How many input channels does the 1794-IB16 provide?  A: It supports 16 sinking DC input channels.

Q: What terminal bases are compatible with this module?  A: It can be mounted on 1794-TB3, TB3S, TB3K, TB3SK, TBKD, and TB37DS bases.

Q: What is the nominal input voltage?  A: The module operates at a nominal 24 VDC input.

Comparison with Similar Models

• 1794-IB16: 16-point DC sinking input module with LED indicators.

• 1794-IB8: 8-point DC sinking input module for smaller systems.

• 1794-OB16: 16-point DC output module for control applications.