Allen-Bradley 1794-OC16 Flex I/O Digital Output Module Overview

Product Introduction

When industrial automation systems require reliable digital output control, the Allen-Bradley 1794-OC16 Flex I/O Digital Input and Output Module delivers consistent performance. This module provides 16 nonisolated sourcing outputs, making it a versatile choice for various field device control applications. As part of the Flex I/O family, it integrates seamlessly into Rockwell Automation control architectures.

Technical Specifications Breakdown

The 1794-OC16 module operates with an output voltage range of 30V DC minimum to 60V DC maximum at 45°C. Each channel supports an on-state current from 2.0mA minimum to 500mA maximum, ensuring compatibility with a wide range of loads. The off-state voltage maximum is 60V DC, with off-state leakage limited to 1.0mA. The on-state voltage drop is a maximum of 1.0V DC at 0.5A, contributing to efficient power delivery. The module draws 80mA at 5V DC from the Flexbus and dissipates 3.7W at 60V DC.

Industry Applications

Manufacturing facilities often use the 1794-OC16 to control solenoid valves, indicator lights, and small motor starters. Its 16 outputs allow for efficient grouping of control points, reducing the number of modules required. The nonisolated sourcing design simplifies wiring in common-ground systems, making it a cost-effective solution for discrete manufacturing and process control applications.

Installation & Setup Guidance

Install the 1794-OC16 by attaching it to a compatible Flex I/O terminal base, such as the 1794-TB3SK, 1794-TB3S, 1794-TB3, 1794-TB3K, or 1794-TB3S. Set the keyswitch on the module to Position 2 before insertion. The module can be mounted horizontally or vertically, offering flexibility in panel layout. Its compact dimensions of 3.7 inches x 3.7 inches x 2.7 inches and weight of 0.11 kilograms simplify handling and installation.

Maintenance & Reliability

Routine inspection of the 1794-OC16 includes verifying that all 16 yellow LED indicators function correctly to show output status. The module is tested to withstand 1900V DC for 1 second between the system and users, enhancing operator safety. Because the outputs are nonisolated, ensure proper grounding and avoid sharing commons across different voltage potentials. Periodic cleaning of the terminal base connections helps maintain reliable electrical contact.

Compatible Systems

The 1794-OC16 integrates with any Flex I/O system, allowing digital and analog modules to be detached and swapped without disturbing field wiring. This hot-swappable capability reduces downtime during maintenance or reconfiguration. The module communicates over the Flexbus backplane, which connects to Allen-Bradley programmable automation controllers (PACs) and PLCs.

Selection Guide & Purchasing Advice

When selecting the 1794-OC16, verify that your application requires 16 nonisolated sourcing outputs with a 48V DC nominal output voltage (30-60V DC range). Ensure your control system supports Flex I/O architecture and that you have the correct terminal base unit. For current availability and lifecycle status, contact BluePLC Industrial. We stock genuine Allen-Bradley modules and can assist with replacement or upgrade needs.

For complete technical specifications for the 1794-OC16, please contact BluePLC Industrial.