Allen Bradley GuardLogix 1756-L63S 8MB Safety Controller

Allen Bradley 1756-L63S GuardLogix 5563S Safety Processor Module

Product Overview

The 1756-L63S (Part Number: 1756-L63S) is a high-performance GuardLogix safety controller from the Allen-Bradley ControlLogix 5560 series. This module is uniquely engineered to provide integrated safety and standard control within a single controller unit, facilitating high-speed automation while maintaining strict compliance with global safety standards.

Designed for large-scale, mission-critical systems, the 1756-L63S features 8 MB of standard user memory and a dedicated 1 MB safety memory (Note: some hardware revisions offer enhanced safety partitions). It is certified for applications requiring Safety Integrity Level 3 (SIL 3) and Performance Level e (PLe). This dual-tasking capability reduces hardware footprint and simplifies network architecture by managing both machine logic and safety interlocks through the same controller and bridge modules.

Technical Specifications

The 1756-L63S provides the following technical parameters for high-demand industrial environments:

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model Number: 1756-L63S

• Series: GuardLogix 5563S (Logix5563S)

• Standard User Memory: 8 MB

• Safety User Memory: 1 MB (up to 4 MB in specific late-revision configurations)

• I/O Memory: 478 KB

• Safety Certification: SIL 3 (IEC 61508), PLe (ISO 13849-1)

• Maximum I/O Capacity: 128,000 points

• Maximum Analog I/O: 4,000 inputs

• Scan Time: 0.08 ms per 1K of logic

• Backplane Current (5.1V DC): 1200 mA

• Backplane Current (24V DC): 14 mA

• Isolation Voltage: 30V (continuous), basic insulation type

• Nonvolatile Memory: Supports CompactFlash (1784-CF64, 1784-CF128)

• Battery Requirements: 1756-BA1, 1756-BATM, or 1756-BA2 (Revision dependent)

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

• Relative Humidity: 5% to 95% non-condensing

• Weight: 0.42 kg (0.93 lbs)