Product details
Overview
The Allen-Bradley 1756-L71 ControlLogix 5571 Controller offers 2 MB of user memory and 0.98 MB of I/O memory. Designed for high-performance industrial automation, this controller supports up to 128,000 digital I/O points, 4,000 analog I/O points, and integrated motion capabilities via EtherNet/IP and SERCOS interface. It features full redundancy support and advanced diagnostic monitoring through its onboard display.
Key Features
- Memory & Performance: 2 MB user memory and 0.98 MB I/O memory.
- High I/O Capacity: Up to 128,000 digital and 4,000 analog I/O points.
- Integrated Communication: USB 2.0 full-speed port with optional EtherNet/IP, ControlNet, and DeviceNet adapters.
- Diagnostic Capabilities: Alphanumeric display for real-time monitoring and troubleshooting.
- Redundancy Support: Ideal for mission-critical applications requiring high reliability.
- Integrated Motion: Supports SERCOS and EtherNet/IP motion control systems.
Technical Specifications
| Specification | Details |
|---|---|
| Brand/Manufacturer | Allen-Bradley / Rockwell Automation |
| Model | 1756-L71 (Logix5571 Processor) |
| User Memory | 2 MB |
| I/O Memory | 0.98 MB |
| Maximum Digital I/O | 128,000 |
| Maximum Analog I/O | 4,000 |
| Communication Ports | 1 USB 2.0 Full-Speed, Type B Port |
| Power Dissipation | 2.5 Watts |
| Thermal Dissipation | 8.5 BTU/hour |
| Enclosure Type | Open |
| Redundancy | Full Support |
| Integrated Motion | EtherNet/IP, SERCOS |
| Capacitor Modules | Includes 3 energy storage modules |
Applications
- Factory Automation: Control systems for production lines.
- Process Control: Continuous and batch processing industries.
- Motion Control: High-precision motion tasks using integrated EtherNet/IP and SERCOS.
- Redundant Systems: Applications requiring high reliability and uptime.
- Industrial IoT (IIoT): Seamless integration with modern industrial networks.
FAQs
1. What software is compatible with the 1756-L71?
This controller supports Studio 5000 and RSLogix 5000 software environments.
2. Can I use third-party SD cards with this module?
It is recommended to use Rockwell Automation SD cards (e.g., 1784-SD1 or 1784-SD2) to avoid data corruption.
3. Does the 1756-L71 support redundancy?
Yes, the controller supports full redundancy, except for motion-specific applications.
4. What chassis models are compatible?
The 1756-L71 is compatible with chassis like 1756-A4, 1756-A7, 1756-A10, and others in the ControlLogix range.
5. How many tasks can it handle?
It supports up to 32 tasks and 100 programs per task.
Check official datasheet for more detailed information: ControlLogix and GuardLogix Controllers
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