A-B 1794-OB16P Digital Output Module

Allen-Bradley 1794-OB16P Digital Output Module (Flex I/O)

 

 

The Allen-Bradley 1794-OB16P is a Flex I/O 16-point digital output module used in distributed control systems. It provides 24V DC sourcing transistor outputs for controlling field devices such as relays, solenoids, indicator lights, and small industrial loads.

It is part of the Allen-Bradley Flex I/O (1794 series), which is designed for remote I/O applications over Ethernet/IP, ControlNet, or other adapters.

Key Specifications

• Model: 1794-OB16P
• Brand: Allen-Bradley (Rockwell Automation)
• Series: Flex I/O 1794
• Product Type: Digital Output Module
• Output Channels: 16 points
• Output Type:
  • 24V DC sourcing (transistor outputs)
• Protection:
  • Electronic fused / short-circuit protected outputs
• Output Current:
  • Typically up to 0.5 A per point (depending on temperature/load)
• Voltage Range:
  • 20.4 – 26.4 VDC
• Mounting:
  • Flex I/O terminal base system (DIN rail mounted adapter system)

What it does (simple explanation)

PLC / Network Adapter
↓
1794-OB16P Output Module
↓
Turns ON/OFF 16 field devices
↓
Relays / solenoids / lamps / actuators

It works as a remote switching module controlled over industrial networks.

Main Functions

• Provides 16 digital ON/OFF outputs
• Controls industrial loads via transistor switching
• Sends control signals from PLC to field devices
• Supports remote/distributed I/O architecture
• Provides built-in electronic protection (fused outputs)

Key Features

• High-density 16-channel output design
• 24V DC fast switching transistor outputs
• Electronic short-circuit protection (P version)
• LED status indicators per channel
• Modular Flex I/O design (easy expansion)
• Suitable for distributed control systems
• Supports industrial network adapters (EtherNet/IP, ControlNet, etc.)

Applications

• Factory automation systems
• Conveyor control systems
• Packaging machinery
• Remote machine control cabinets
• Process automation systems
• Solenoid and relay control applications