Excellent PLC
Product Introduction
The Allen-Bradley 1771-OBN DC High True Output Module is a high-performance digital DC output module for the PLC-5 1771 I/O platform by Allen-Bradley. It provides precise DC output control to operate industrial field devices, translating PLC digital signals into reliable high-true DC outputs.
This module features multiple DC output channels with a high-true logic configuration, making it suitable for controlling solenoids, relays, and other DC-powered devices. Each output can handle up to 0.5 A continuously, with a total module current rating of 8 A. The module operates within a 10–30 VDC range and can source voltages up to 60 VDC, drawing 330 mA from the 5 VDC backplane.
Installed in a standard 1771 I/O chassis, the 1771-OBN integrates seamlessly with PLC-5 systems for industrial automation applications that require accurate and dependable DC output control.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Allen-Bradley 1771-OBN DC High True Output Module |
| Manufacturer | Allen-Bradley |
| Series | 1771 PLC-5 I/O System |
| Module Type | Digital DC high-true output module |
| Operating Voltage (DC) | 10–30 VDC |
| Voltage Category | 10–60 VDC, source |
| Backplane Current | 330 mA |
| Max Continuous Current per Output | 0.5 A |
| Max Continuous Current per Set | 2 A |
| Max Continuous Current per Module | 8 A |
| Installation Location | 1771 I/O chassis |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.94 kg |
Applications
● Industrial DC Load Control
Operates solenoids, relays, and actuators using high-true DC outputs.
● PLC-5 Automation Systems
Provides accurate DC output signals for automated process and machine control.
● Manufacturing and Production Lines
Controls multiple DC-powered devices simultaneously in production environments.
● Energy and Utility Systems
Switches DC actuators and field devices used in energy distribution and power management.
● Instrumentation and Monitoring
Delivers reliable DC outputs for laboratory, process instrumentation, and control systems.
Advantages
● High-True Logic Output
Ensures accurate and predictable DC output operation for industrial devices.
● Multiple Output Channels
Supports multiple devices with a total module current of 8 A.
● Wide Voltage Range
Operates between 10–30 VDC and sources up to 60 VDC.
● Reliable Backplane Integration
Draws 330 mA from the 5 VDC backplane for efficient PLC-5 system operation.
● Stable Industrial Performance
Designed for long-term, consistent operation in automation and process control environments.
● Compact Design
Fits standard 1771 I/O chassis slots for easy system expansion.
