Excellent PLC
Product Introduction
The Allen-Bradley 1790-T8BV8BX CompactBlock LDX I/O Expansion Block is a mixed digital I/O expansion module designed to extend both input and output capabilities in CompactBlock LDX systems. Developed by Rockwell Automation and released under the Allen-Bradley series, this module is tailored for distributed automation environments where flexible signal handling is required.
The module integrates 8 digital inputs (sinking/sourcing compatible) and 8 digital sourcing outputs, all operating on standard industrial DC levels. With DeviceNet communication support, it enables efficient integration into networked control systems while maintaining reliable real-time signal exchange.
Its compact open-style structure with IP20 protection allows installation inside control cabinets, making it suitable for machine-level automation and OEM equipment where space and flexibility are critical.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Model | Allen-Bradley 1790-T8BV8BX |
| Product Type | CompactBlock LDX I/O Expansion Block |
| Digital Inputs | 8 Channels |
| Input Type | Sinking / Sourcing Compatible |
| Digital Outputs | 8 Channels |
| Output Type | Sourcing |
| Communication Protocol | DeviceNet |
| Signal Type | Discrete |
| Module Style | Open Style |
| Mounting Method | Panel Mount |
| Enclosure Rating | IP20 |
| Application Environment | Industrial automation systems |
| Dimensions | 104 × 42 × 52 mm |
| Weight | 0.1 kg |
Applications
• Distributed Automation Systems
Used to expand both input and output capacity in DeviceNet-based control networks.
• Machine Control Systems
Handles sensor inputs and actuator outputs within compact machine automation setups.
• Packaging and Assembly Equipment
Manages signal acquisition and device control in multi-station production lines.
• Material Handling Systems
Controls conveyors and monitors sensors in logistics and transport operations.
• OEM Equipment Solutions
Provides flexible I/O expansion for machine builders requiring mixed signal capabilities.
• Factory Automation Lines
Supports integrated input and output control in automated manufacturing environments.
Advantages
• Mixed I/O Functionality
Combines digital inputs and outputs in a single module, reducing system complexity.
• Flexible Input Compatibility
Supports both sinking and sourcing input signals for wider application use.
• Reliable Sourcing Outputs
Ensures stable control of field devices such as relays and solenoids.
• DeviceNet Integration
Enables seamless communication within distributed industrial networks.
• Compact and Efficient Design
Saves panel space while providing essential I/O functionality.
• Industrial-Grade Performance
Designed for stable and continuous operation in demanding environments.
