Allen-Bradley 1793-OB16P Digital Output Module

The Allen-Bradley 1793-OB16P is a 16-point Digital Output Module from the ArmorBlock family, designed to provide high-performance discrete output control in rugged, distributed environments. Its compact and sealed design allows direct mounting on machinery, minimizing wiring complexity and control cabinet space.

This module delivers reliable 24V DC sourcing outputs, ideal for controlling solenoids, contactors, and indicator lamps. Built for on-machine applications, it enhances operational efficiency by integrating control directly at the field level while maintaining robust communication with higher-level controllers through DeviceNet or other supported networks.

Technical Details and Specifications

Industrial Use and Application Scenarios

The 1793-OB16P is purpose-built for decentralized I/O systems in environments where space and durability are critical. It supports modular machine architectures and can be placed near sensors and actuators for optimal signal integrity.

Typical uses include

• Material handling systems — controlling conveyors, diverters, and actuators.

• Packaging machinery — operating solenoid valves and indicator stacks.

• Automotive assembly lines — managing tooling outputs and process actuators.

• Food and beverage automation — designed to withstand washdown areas.

• Robotics systems — simplifying wiring and reducing control panel complexity.

Engineering Advantages and Design Insights

• Rugged IP67 Construction: Ensures protection against dust, moisture, and vibration.

• Plug-and-Play Wiring: M12 connectors reduce installation time and errors.

• Compact Footprint: Enables machine-level mounting with minimal space usage.

• Integrated Diagnostics: LED indicators for easy status and fault monitoring.

• Scalable Architecture: Easily expandable for larger distributed systems.

• Reduced Downtime: Field-replaceable design allows quick maintenance.

• High-Speed Response: Ideal for time-critical control functions.

• DeviceNet/ArmorBlock Integration: Simplifies networked I/O configuration.

FAQs

1. What type of load does the 1793-OB16P support?

   It supports sourcing (PNP) loads such as solenoid valves and indicator lamps.

2. Is the module water-resistant?

   Yes, with an IP67 rating, it’s protected from dust and temporary immersion in water.

3. Can this module be mounted outside a control cabinet?

   Yes, it’s designed for direct machine mounting, eliminating the need for enclosures.

4. What happens in case of an output short circuit?

   The module detects and reports the fault via LED indicators and network status.

5. Is it compatible with DeviceNet networks?

   Yes, it integrates seamlessly within ArmorBlock I/O DeviceNet systems.

6. How are the outputs protected?

   Each output has short-circuit and overload protection.

7. Can outputs be controlled individually?

   Yes, each of the 16 outputs is independently addressable.

8. Does it require external fusing?

   External fusing is recommended for additional circuit protection.

9. What is the maximum distance from the controller?

   Depends on the network; for DeviceNet, typically up to 500 meters with proper cabling.

10. Can it be used in hazardous environments?

    Yes, it’s certified for Class I, Division 2 hazardous locations.