Allen-Bradley 1747-L551B Modular Processor Unit

Product Overview

The Allen-Bradley 1747-L551B is a high-performance modular processor engineered for demanding industrial automation applications.

With 16 KB user memory and flash backup, it stores complex control programs while maintaining system reliability.

The module supports RS-232 ports and EtherNet communication, ensuring seamless integration with existing control networks.

Its compact design (145 × 35 × 142 mm) and open-type enclosure allow flexible chassis mounting while minimizing space requirements.

Featuring status LEDs and diagnostic capabilities, the 1747-L551B provides intuitive monitoring and proactive maintenance options.

The processor achieves fast execution speeds, with typical scan time of 0.9 ms/Kword, bit execution of 0.37 μs, and I/O scan of 0.255 ms, enabling real-time control.

Technical Specifications

Key Features

• High-Speed Performance: Executes control tasks rapidly with minimal latency.

• Robust Communication: RS-232 and EtherNet connectivity ensures seamless integration.

• Durable Construction: Open-type enclosure withstands industrial environmental stress.

• Compact Footprint: Easily mounts in chassis without occupying excess space.

• Advanced Diagnostics: Status LEDs and built-in monitoring improve reliability.

Applications

• Manufacturing Automation: Ideal for assembly lines and process control systems.

• Energy Management: Supports control in power distribution and energy-intensive applications.

• Material Handling: Enhances precision in conveyor and sorting systems.

• Legacy System Integration: Compatible with existing Allen-Bradley control architectures.

FAQ

Q1: Is the 1747-L551B module original Allen-Bradley?
Yes, the 1747-L551B is 100% new and factory-original, ensuring high reliability.

Q2: What is the memory capacity of this module?
It provides 16 KB of user memory with flash backup for program retention.

Q3: Which communication interfaces are available?
The module supports RS-232 serial ports and EtherNet communication.

Q4: Can it handle extreme environmental conditions?
Yes, it operates in 0–60°C with 5–95% humidity and withstands vibration and shock.

Q5: How long does shipping usually take?
Delivery typically ranges from 3 days to 2 weeks, depending on order size, via DHL or similar logistics.