Product Overview

The Allen-Bradley 1756-L62S is a high-performance GuardLogix 5562S processor designed to provide integrated safety and standard control within a single ControlLogix chassis. This dual-processor architecture is engineered for mission-critical applications that demand rigorous safety integrity, supporting up to Safety Integrity Level 3 (SIL 3) and Performance Level e (PLe). By leveraging the Logix engine, the 1756-L62S allows for the coexistence of standard control logic and safety-critical functions, streamlining system design and reducing hardware overhead.

This controller must be paired with a 1756-LSP safety partner module to achieve its rated safety certification. The 1756-L62S manages standard program execution while the partner module provides the necessary redundancy and diagnostic coverage required for functional safety in industrial environments.

Technical Characteristics and Performance

The 1756-L62S is optimized for large-scale automation tasks, offering extensive I/O capacity and specialized memory allocation for safety data.

• Memory Configuration: Features 4 MB of available user memory for standard tasks and a dedicated 1 MB of safety-specific memory.

• I/O Capacity: Supports a maximum of 128,000 total digital I/O points and 4,000 analog I/O points.

• Processing Speed: High-speed execution of logic, with specialized safety task prioritization to ensure predictable response times.

• Programming Interface: Front-mounted RS-232 serial port for local programming and diagnostic access.

• Mode Control: Integrated three-position key switch for selecting between Run, Program, and Remote modes.

Electrical and Environmental Specifications

Designed for reliable operation in heavy industrial settings, the module includes robust thermal management and isolation features.

• Current Draw: 1200 mA at 5.1V DC; 14 mA at 24V DC.

• Power Dissipation: 3.5 Watts.

• Thermal Dissipation: 11.9 BTU per hour.

• Isolation Voltage: 30V continuous isolation, tested at 707V DC for 60 seconds.

• Operating Temperature: 0°C to 60°C (32°F to 140°F).

• Dimensions: 3.5 x 14.0 x 15.1 cm.

• Weight: 0.34 kg.

• Shock and Vibration: 30g operational shock and 2g vibration resistance at 10-500Hz.

Application and Scalability

The GuardLogix 5562S is ideal for automated assembly lines, material handling, and process industries where human safety and machine protection are paramount. Because it resides in the 1756 ControlLogix chassis, it benefits from the full range of 1756 communication modules, including EtherNet/IP, ControlNet, and DeviceNet, allowing for seamless integration into enterprise-level networks.