1747-L551
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Original Packaging
Surplus stock in its original box. Units may have been briefly powered on for verification purposes only.
- No visible signs of wear, use, or physical damage.
- Arrives in the original manufacturer packaging — factory seal may be absent and outer box may show minor shelf wear or labeling.
- All standard hardware and accessories included unless otherwise noted.
- Documentation and instructions not guaranteed.
- Date codes or product series may differ from current factory inventory.
- Packaging language and country of origin may vary.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Marci Hardware Packaging
Surplus stock repacked and shipped in Marci Hardware-branded packaging. Units may have been briefly powered on for verification purposes only.
- No visible signs of wear, use, or physical damage.
- Ships in Marci Hardware-branded or generic aftermarket packaging — original manufacturer box not included.
- Some accessories, hardware, or documentation included with factory-new units may not be present.
- Date codes or product series may differ from current factory inventory.
- Packaging language and country of origin may vary.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Refurbished
Previously owned or unused units with minor cosmetic imperfections, restored to full working condition.
- May have prior production or field use.
- Each unit is inspected, tested, and cleaned by Marci Hardware before shipment.
- Some accessories, hardware, or documentation included with factory-new units may not be present.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Overnight Shipping Available
Rush service is available during checkout, or contact us for expedited shipping options:
Phone Number: (832) 343-0718
Email: sales@marcihardware.com
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Ships from Stafford, TX
Description
The Allen-Bradley 1747-L551 SLC 5/05 processor delivers fast, reliable control for mid-size industrial automation systems. Featuring Ethernet and serial communication, it ensures smooth integration with existing networks while supporting advanced instruction sets and efficient data handling. Designed for demanding applications, the 1747-L551 offers robust memory, flexible I/O capability, and dependable performance, making it a trusted solution for upgrading or maintaining SLC 500 platforms.
Key Features
- High-speed SLC 5/05 processor for mid-range control
- Built-in Ethernet port for seamless networking
- DH+ and RS-232 communication support
- 16K user memory for complex applications
- Supports modular SLC 500 I/O configuration
- Real-time clock and advanced instruction set
- Non-volatile memory for program retention
- Rugged design for industrial environments
Specification
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Model | 1747-L551 |
| Series | SLC 5/05 Processor |
| Memory | 64K words user memory |
| I/O Capacity | Up to 4096 I/O points |
| Communication Ports | Ethernet (10/100 Mbps), RS-232/422/423 via Channel 0 |
| Protocol Support | DF1 Full-Duplex, DH-485, EtherNet/IP (messaging), ASCII |
| Program Scan Time | ~0.9 ms per 1K instructions |
| Backplane Current Draw | 1.00 A at 5V DC |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Memory Backup | Replaceable lithium battery |
| Mounting | Compatible with SLC 500 chassis |
| Application | Machine control, packaging, OEM machinery, industrial automation |
I will ship within one business day. International buyers are welcome. IF you want Expedited Shipping we can help you as well. We can ship under your (FedeX, UPS, DHL) Account if you have one. We Do Trade-Ins as well. Customer satisfaction is our priority. Call us 8323430718
1 Year Warranty ( Manufacturer warranty DO NOT apply )