Rockwell / Allen-Bradley 1794-OB16P FLEX I/O 24VDC 16 Protected Source Output Module

The Rockwell / Allen-Bradley 1794-OB16P is a FLEX I/O output module that delivers 16 protected source outputs at 24V DC. Designed for industrial automation and process control, each output incorporates individual overcurrent and short-circuit protection to prevent cascading failures and maintain system integrity. The module integrates directly into the FLEX I/O distributed I/O architecture, enabling flexible control of DC-powered actuators and field devices in complex manufacturing environments.

Technical Specifications

• Module Type: Output Module


• Output Configuration: 16 Protected Source Outputs


• Nominal Output Voltage: 24V DC


• System: FLEX I/O compatible


• Protection: Overcurrent and short-circuit protection per output


• Output Isolation: Digital outputs isolated from logic-side electronics

Key Features

• Per-channel protection eliminates single-point failure modes. Short-circuit and overcurrent events on one output do not affect remaining channels.


• Internal current limiting safeguards connected loads and extends output module lifespan.


• Isolated output stage provides noise immunity in electrically harsh plant environments.


• Direct FLEX I/O backplane integration simplifies distributed control architecture deployment.

Output Performance

• ON-state output resistance contributes to predictable voltage regulation across load variations.


• OFF-state leakage current minimization supports precision control applications.


• Switchable output frequency capability enables real-time device actuation and feedback control.


• Surge current handling accommodates inductive load transients from solenoids and motor starters.

Typical Applications

• DC solenoid valve and motor starter control


• Distributed process automation networks


• Manufacturing machine tool interfaces


• Chemical and pharmaceutical production systems


• Remote I/O in geographically dispersed facilities

Compatibility & Integration The 1794-OB16P operates within the Allen-Bradley FLEX I/O ecosystem, interfacing directly with standard backplane configurations. Modular design permits mixed input and output stack arrangements to match specific control requirements. Backplane current consumption and detailed electrical characteristics are available in the product technical documentation.