ALLEN BRADLEY 1794-OB16 / 1794-OB32P Used Working FLEX I/O Output Module

Product Overview

This lot includes two (2) high-performance Allen-Bradley FLEX I/O Digital Output Modules: one 1794-OB16 and one 1794-OB32P. These modules are designed for distributed automation, allowing a PLC to control solenoids, relays, and indicators over a network without extensive local wiring. The 1794-OB32P is a high-density unit featuring integrated protected outputs, while the 1794-OB16 provides a standard reliable interface for 24V DC loads. As a Used Working lot, these modules are ideal for expanding existing industrial cells or serving as high-value spares for systems utilizing EtherNet/IP, ControlNet, or DeviceNet adapters.

Lot Composition (2 Modules Total)

• 1 x 1794-OB16: A 16-point sourcing digital output module. It provides a standard interface for 24V DC field devices with clear LED status indicators for each channel.
• 1 x 1794-OB32P: A high-density 32-point sourcing output module. The "P" designation indicates Protected Outputs, featuring internal electronic fusing that protects the module from short circuits and overcurrent conditions.

Key Features

• High-Density Output Control: Combined, this lot provides 48 points of digital output control while occupying minimal DIN rail space.
• Sourcing Output Architecture: Both modules are designed for sourcing (PNP) configurations, providing 24V DC power directly to the load.
• Protected Circuitry (1794-OB32P): The 32-point module includes built-in protection that shuts down individual outputs during fault conditions, preventing damage to the module backplane.
• Modular "RIUP" Capability: Supports Removal and Insertion Under Power (RIUP), allowing for maintenance without shutting down the entire I/O station.
• Universal FLEX I/O Compatibility: Works seamlessly with all 1794-series communication adapters (e.g., 1794-AENT, 1794-ASB).
• Status Visualization: Individual bright LEDs for every channel allow for rapid visual troubleshooting of the control logic and field wiring.

Item Condition (Used Working)

• Functional Status: Used Working. Both modules have been professionally bench-tested. Every output point (48 total) has been toggled and verified for correct voltage delivery and load-carrying capacity.
• Physical State: Clean industrial condition. The backplane connectors are straight and free of oxidation. The plastic locking tabs are intact and secure.
• Technical Integrity: No "Module Fault" indicators were active during testing. The 1794-OB32P protection circuit was verified to reset correctly after a simulated fault.
• Note: Professional installation is required. These modules require compatible 1794 Terminal Bases (e.g., 1794-TB3 or 1794-TB32) for field wiring connections.

Package Includes

1. 1 x Allen-Bradley 1794-OB16 FLEX I/O Module
2. 1 x Allen-Bradley 1794-OB32P Protected FLEX I/O Module