Allen-Bradley | 1756-L71S Processor Module

Allen-Bradley 1756-L71S GuardLogix Controller

Technical Specifications

• User Memory: 2 MB for standard applications
• Safety Memory: 1 MB dedicated to safety functions
• I/O Memory: 0.98 MB for efficient data handling
• Maximum I/O Capacity: 128,000 digital points
• Analog I/O Capacity: 4,000 points maximum
• Power Consumption: 800 mA at 5.1V DC, 5 mA at 1.2V DC
• Thermal Dissipation: 8.5 BTU per hour

Key Features

• Integrated 4-character display for runtime monitoring
• USB programming port for easy configuration
• Supports 31 standard tasks and 1 safety task
• Compatible with EtherNet/IP, ControlNet, and DeviceNet
• Includes 1GB SD card for non-volatile memory storage
• Capacitor-based energy storage (no batteries required)
• Open-style enclosure design

Safety System Requirements

• Must be paired with 1756-L7SP safety partner module
• Supports SIL 3 and Category 4/PLe safety standards
• Single project configuration for standard and safety functions
• Dual processor architecture for redundancy
• Safety communication via Ethernet/IP, ControlNet, or DeviceNet
• Front-panel status indicators for diagnostics

Compatibility & Installation

• Fits all 1756 ControlLogix chassis models
• Install in any available chassis slot
• Uses 1756-ESMCAP energy storage modules
• Supports up to 500 controller connections
• Works with Rockwell Automation 1784-SD1/SD2 memory cards
• Operating temperature: 0-60°C industrial range

Programming & Communication

• Programmed using Logix5000 software suite
• Supports multiple programming languages
• Safety tasks limited to Relay Ladder Logic
• 256 EtherNet/IP connections supported
• 128 TCP connections maximum
• Real-time control and monitoring capabilities

Shipping & Support

• Genuine Allen-Bradley product
• In stock for immediate shipment
• Ships within 5 business days
• Available via FedEx, UPS, and DHL
• 30-day return policy for unopened items

Frequently Asked Questions

What safety standards does this controller meet?
The 1756-L71S meets SIL 3 and Category 4/Performance Level e safety standards.

Is a safety partner module required?
Yes, must be used with 1756-L7SP safety partner for safety applications.

What is the memory configuration?
2 MB user memory, 1 MB safety memory, and 0.98 MB I/O memory.

Does it support controller redundancy?
No, the 1756-L71S does not support controller redundancy features.

What communication networks are supported?
EtherNet/IP, ControlNet, and DeviceNet networks.

For technical specifications and pricing information, contact: sales@nex-auto.com