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- Allen Bradley
- 1785-L11B/E
- PLC-5/11 Processor
- USA
- 165 x 51 x 89 mm
- 1.36 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
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Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen Bradley 1785-L11B/E is a PLC-5/11 Processor, designed to act as the central processing unit for PLC-5 automation systems. It provides robust and reliable control for industrial processes, executing logic, sequencing, and data operations with high efficiency. The “/E” version offers enhanced features and extended capabilities compared to the standard L11B processor.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley |
| Model | 1785-L11B/E |
| Product Type | PLC Processor |
| Function | Central processing unit for PLC-5 systems |
| Compatibility | PLC-5 I/O modules and racks |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 1.36 kg |
| Operating Environment | Industrial automation and process control systems |
Function and Working Principle
The 1785-L11B/E operates by:
- Executing user-defined control programs stored in memory
- Reading input signals from PLC-5 I/O modules
- Generating output commands to control industrial devices
- Managing communication with HMIs, networked PLCs, and peripheral devices
It acts as the brain of the PLC-5 system, ensuring deterministic and reliable control of automation processes.
Role in Industrial Automation
The processor is essential for:
- Coordinating logic, timing, and sequencing in PLC-5 systems
- Controlling machinery, process equipment, and automated operations
- Maintaining network communication with operator interfaces and other controllers
- Storing and processing critical industrial data
- Supporting high-reliability operations in industrial environments
Industrial Applications
Common applications include:
- Manufacturing process control
- Chemical, oil & gas, and power plant automation
- Material handling and packaging systems
- Monitoring and control of complex industrial machinery
- Data acquisition and process monitoring in networked PLC environments
Installation and System Integration
Installation guidelines:
- Insert the 1785-L11B/E processor into a PLC-5 rack
- Connect compatible I/O modules and power supply
- Configure using RSLogix 5 or compatible programming software
- Verify communication, input/output functionality, and program execution
The processor’s compact design and industrial-grade construction make integration into PLC-5 systems straightforward.
Compatible System Components
- PLC-5 I/O racks and modules
- Allen Bradley communication modules (e.g., 1785-ENET, 1785-BCM)
- Industrial HMIs and operator interface panels
- RSLogix 5 programming software
- Networked PLC-5 or ControlLogix systems
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Allen Bradley 1785-L11B/E | PLC Processor | PLC-5/11 enhanced version | Industrial automation and control |
| Allen Bradley 1785-L20B | PLC Processor | Higher speed PLC-5 processor | Medium to large-scale industrial systems |
| Allen Bradley 1785-L40B | PLC Processor | Advanced PLC-5/20 processing | Complex industrial automation networks |
Key Advantages
- High-speed and reliable control for PLC-5 systems
- Supports logic, sequencing, and process automation tasks
- Enables network communication and diagnostics
- Enhanced features over standard L11B for extended functionality
- Compact, rugged design suitable for industrial environments
Technical FAQs
What is the main purpose of the 1785-L11B/E?
It serves as the central processor for PLC-5 systems, executing control programs and managing I/O operations.
Which I/O modules is it compatible with?
Compatible with PLC-5 I/O racks and modules.
Does it support network communication?
Yes, it communicates with HMIs, other PLCs, and networked devices via compatible communication modules.
What are typical applications?
Used in industrial automation, process control, and critical manufacturing systems.
Conclusion
The Allen Bradley 1785-L11B/E PLC-5/11 Processor is a robust, high-performance CPU for PLC-5 automation systems. Its enhanced features, reliable processing, and network compatibility make it ideal for industrial process control, machinery automation, and high-reliability PLC applications.