Allen Bradley 1790-T0B16X CompactBlock LDX I/O Expansion Block

Product Introduction

The Allen-Bradley 1790-T0B16X CompactBlock LDX I/O Expansion Block is a compact digital output expansion module designed to extend the output capacity of CompactBlock LDX systems. Developed by Rockwell Automation under the Allen-Bradley family, this module is widely used in distributed industrial control applications where additional output channels are required.

This expansion block provides 16 sourcing digital output channels operating at DC voltage levels, enabling reliable control of field devices such as relays, solenoids, and indicator lights. Designed as an open-style module with IP20 protection, it is suitable for installation inside control panels or protected enclosures.

With its compact size and seamless integration capability, the 1790-T0B16X allows users to scale their I/O systems efficiently without increasing system complexity.

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Product Specifications

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Applications

• Expansion of Distributed I/O Systems
Adds additional output capacity to CompactBlock LDX base modules in decentralized architectures.

• Machine Automation Equipment
Controls actuators such as relays, solenoids, and indicator lamps in automated machinery.

• Packaging and Assembly Lines
Provides extended output control for multi-station production equipment.

• Material Handling Systems
Used for conveyor control, alarms, and signaling across multiple operational zones.

• OEM Equipment Integration
Ideal for equipment manufacturers requiring scalable output expansion in compact systems.

• Factory Automation Systems
Supports large-scale automation where multiple output signals are needed.

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Advantages

• Flexible System Expansion
Allows easy addition of 16 output channels without redesigning the entire system.

• Reliable Sourcing Outputs
Provides stable current sourcing outputs for consistent operation of field devices.

• Compact Mechanical Design
Small footprint enables installation in space-limited control panels.

• Simplified Wiring Structure
Integrated terminal design reduces wiring effort and improves installation efficiency.

• Seamless Integration
Fully compatible with CompactBlock LDX base modules for smooth system expansion.

• Industrial Durability
Designed for stable operation in demanding industrial environments.

FAQ

1. What is the main function of this expansion block?
   It expands the number of available digital output channels in a CompactBlock LDX system.

2. What type of outputs does this module provide?
   It provides 16 sourcing digital outputs.

3. What is the difference between sourcing and sinking outputs?
   Sourcing outputs supply current to the load, while sinking outputs draw current from the load.

4. What types of devices can be connected to this module?
   It can control relays, solenoids, indicator lights, and other low-power DC devices.

5. How is this module connected to the base block?
   It connects directly to a compatible CompactBlock LDX base module as an expansion unit.

6. Is this module suitable for standalone operation?
   No, it is designed to operate as an expansion module alongside a base block.

7. Can multiple expansion blocks be used in one system?
   Yes, depending on system configuration, multiple expansion modules can be added.

8. What kind of systems typically use this module?
   It is commonly used in PLC-based industrial automation systems and machine control setups.

9. How does the module ensure stable output signals?
   It uses robust internal circuitry designed for consistent DC output performance.

10. What installation environment is recommended for this module?
    It should be installed in a protected control cabinet due to its open-style IP20 design.

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