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Allen-Bradley 1756-OB8K ControlLogix DC Digital I/O Module

Brand/Manufacturer: Allen-Bradley

Order Number: 1756-OB8K

Type: I/O Module

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

The Allen-Bradley 1756-OB8K ControlLogix DC Digital I/O Module is an integral component of the ControlLogix automation system, designed to provide high-performance digital input and output functions for industrial automation applications. This module offers eight channels for sourcing or sinking digital I/O, providing seamless integration with a variety of field devices such as sensors, actuators, and switches. Ideal for applications requiring precise control and real-time monitoring, the 1756-OB8K ensures reliable and efficient system operation across various industrial environments.

This module supports a broad range of input and output configurations and is engineered for robust performance, even in challenging industrial environments. Whether you're working with factory automation, process control, or machine control systems, the 1756-OB8K offers flexibility, speed, and reliability for complex automation tasks.

Key Features:

  • 8 Digital Channels: The module provides 8 digital input or output points for connecting a wide range of industrial devices.

  • Flexible Sinking/Sourcing Capabilities: It supports both sourcing and sinking configurations, allowing for versatile integration with various field devices.

  • Real-Time Operation: Ensures quick and reliable communication with the ControlLogix system for immediate responses to I/O changes.

  • High Durability: Built for industrial environments, the module offers protection against electrical noise, temperature fluctuations, and mechanical stresses.

  • Seamless Integration: Fully compatible with the ControlLogix platform, allowing for easy system integration and data management.

  • Diagnostic Capabilities: The module includes built-in diagnostics for quick fault detection and troubleshooting, ensuring minimal downtime.

Technical Specifications:

Specification Details
Module Type DC Digital I/O Module
I/O Points 8 (Sourcing/Sinking)
Input Voltage Range 10-30V DC
Output Voltage Range 10-30V DC
Input Current 5 mA per point (maximum)
Output Current 2 A per point (maximum)
Communication Interface ControlLogix Backplane
Operating Temperature Range 0°C to 60°C (32°F to 140°F)
Storage Temperature Range -40°C to 85°C (-40°F to 185°F)
Nominal Operating Voltage 24V DC
Power Consumption 0.5 W (typical)
Mounting Type Chassis mount (ControlLogix chassis)
Compliance UL Listed, CE Compliant, RoHS Compliant

Typical Applications:

  • Factory Automation: Used for connecting sensors, switches, and actuators in factory automation systems, ensuring real-time control and monitoring.

  • Process Control: Enables precise control of processes by integrating with other ControlLogix modules for synchronized data exchange and operations.

  • Machine Control: Integrates seamlessly with machine control systems, allowing for real-time feedback and automated responses.

  • SCADA Systems: Suitable for integration with SCADA systems, providing digital I/O connectivity for remote monitoring and control of industrial operations.

  • Building Automation: Used in building automation for controlling lighting, HVAC systems, and other automation devices via digital I/O channels.

Support & Maintenance:

The 1756-OB8K ControlLogix DC Digital I/O Module is backed by Allen-Bradley’s trusted support and maintenance services. This includes access to a dedicated support team, online resources, firmware updates, and troubleshooting guides. In addition, Allen-Bradley provides warranty options to ensure your module operates optimally over time, minimizing system downtime and maximizing operational efficiency.

FAQ:

1. How many digital I/O points are available on the 1756-OB8K module?

  • The 1756-OB8K module provides 8 digital I/O points, which can be configured for both sourcing and sinking operations.

2. What voltage ranges are supported by this module?

  • The module supports input and output voltages between 10V and 30V DC, making it compatible with a wide range of industrial devices.

3. Can the 1756-OB8K be used in harsh environments?

  • Yes, the module is designed for industrial environments and can operate in temperatures ranging from 0°C to 60°C (32°F to 140°F), and it is protected against common industrial challenges such as electrical noise and mechanical stresses.

4. How does the module integrate with the ControlLogix system?

  • The 1756-OB8K integrates seamlessly with the ControlLogix backplane, allowing for fast communication and real-time operation.

5. What is the power consumption of the 1756-OB8K module?

  • The module consumes approximately 0.5W of power under typical operating conditions.

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Testimonials

Fast Delivery, Excellent Quality


We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

- Sarah Johnson

Reliable Partner for Original Parts


Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

- David Smith

Professional Service with After-Sales Support

"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."

- Emily Brown

Trusted Source for Industrial Automation Spares


We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.

- Michael Anderson