FLEX I/O Digital DC Input Module 1794-IB16D by Allen-Bradley

Overview
The Allen-Bradley 1794-IB16D is a high-performance FLEX I/O digital input module providing 16 current sinking DC inputs with integrated diagnostic indicators. Designed for modular control networks, this module delivers precise signal monitoring, rapid fault detection, and reliable system integration.

Technical Specifications

• Manufacturer: Allen-Bradley

• Model / Part Number: 1794-IB16D

• Product Type: FLEX Digital DC Input Module with Diagnostics

• Number of Inputs: 16, current sinking

• Recommended Terminal Bases: 1794-TB32, 1794-TB32S, 1794-TB62DS, 1794-TB62EXD4X15

• Nominal Input Impedance: 3.1 kΩ

• Isolation Voltage: 50 V continuous, Basic insulation; type tested at 2121 V DC for 2 s between field side and system

• Channel Isolation: No isolation between individual channels

• FlexBus Current: 30 mA @ 5 V DC

• Max Power Dissipation: 8.5 W @ 31.2 V DC

• Max Thermal Dissipation: 29 BTU/hr @ 31.2 V DC

• Sensor Power: Max 2.2 V voltage drop, 50 mA current

• Field Indicators: 16 yellow ON/OFF LEDs, 16 red diagnostic LEDs, 1 red module fault LED

• Dimensions (HxWxD): 4.57 × 9.4 × 5.33 cm

• Shipping Weight: 1.5 kg

• Operating Temperature: Standard FLEX I/O range (-20°C to 70°C typical)

Applications
Suitable for distributed digital input collection in modular control systems, process monitoring, and machine automation. The diagnostic LEDs provide real-time status and fault detection, reducing maintenance time and improving system reliability.

FAQ
Q: How many input channels does 1794-IB16D provide?
A: The module has 16 sinking DC input channels.

Q: Does it provide diagnostics for each channel?
A: Yes, it features 16 yellow status indicators, 16 red diagnostic indicators, and 1 module fault indicator.

Q: Which terminal bases are compatible with this module?
A: Compatible with 1794-TB32, 1794-TB32S, 1794-TB62DS, and 1794-TB62EXD4X15.