1747-L551 SLC 500 Series Processor | Allen-Bradley PLC Hardware

Description

Allen-Bradley 1747-L551 SLC 5/05 Processor Module

Rockwell Automation designed the 1747-L551 as a high-performance SLC 500 series processor. This module delivers robust control for a wide array of industrial automation applications. For complete technical details, please download the full specification sheet.

Download the Full Product Manual Here

Key Technical Specifications

• Brand: Allen-Bradley
• Model: 1747-L551
• Series: SLC 500 / SLC 5/05
• Digital I/O Capacity: 4096 Inputs and 4096 Outputs
• Analog I/O Capacity: Up to 480 points
• User Memory: 16,000 Words (16 KB Battery-Backed RAM)
• Backup Memory: Supports the 1747-M13 module (Up to 64K)
• Program Scan Time: 0.9 ms per K of memory
• I/O Scan Time: 0.225 milliseconds
• Communication Ports: Built-in 10/100 Base-T Ethernet & RS-232
• Supported Protocols: Ethernet, Remote I/O (RIO), DH485, DH+
• Chassis Slots: Controls up to 30 slots across 3 chassis

Environmental & Physical Specifications

• Operating Temperature: 0 to 60°C (32 to 140°F)
• Storage Temperature: -40 to 85°C (-40 to 185°F)
• Relative Humidity: 5% to 95% (non-condensing)
• Operating Shock: 30G (3 pulses, 11ms)
• Operating Vibration: 2.5G from 5 to 2000 Hz
• Isolation Voltage: 1500V AC (Backplane to I/O)

Packaging & Delivery

• Allen-Bradley 1747-L551 SLC 5/05 Processor Module
• We ship all orders via reliable couriers: FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

• Q: What is the difference between Remote I/O technology and the RIO protocol?
  A: Remote I/O technology refers to distributing I/O modules away from the processor. The RIO protocol is a specific Allen-Bradley communication method used for that purpose.
• Q: Does this processor support a real-time clock?
  A: Yes, the 1747-L551 includes a built-in real-time clock and calendar.
• Q: How do I expand the backup memory?
  A: You can expand memory using the optional Allen-Bradley 1747-M13 memory module.