GuardLogix L7SP | SIL 3 PLe Safety Partner Module | Allen-Bradley | 1756-L7SP

Product Description

The Allen-Bradley 1756-L7SP GuardLogix Safety Partner Module is designed to work alongside 1756-L7xS controllers, providing SIL 3 and PLe certified safety functionality. It ensures compliance with stringent safety standards while maintaining seamless integration into ControlLogix chassis systems.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: GuardLogix / ControlLogix

• Part Number: 1756-L7SP

• Product Type: Safety Partner Module for 1756-L7xS Controllers

• Weight: 0.25 kg

• Energy Storage Modules:

• 1756-SPESMNSE (removable, no residual WallClockTime backup)

• 1756-SPESMNRM (nonremovable, prevents USB and SD card use)

• Current Draw @ 1.2 VDC: 5 mA

• Current Draw @ 5.1 VDC: 800 mA

• Power Dissipation: 2.5 W

• Thermal Dissipation: 8.5 BTU/hr

• Isolation Voltage: 30 V continuous, USB port to backplane (basic insulation); type tested at 500 V AC for 60 seconds

• Slot Width: 2 (requires both modules, each occupies one slot)

• Module Location: Chassis-based, must be installed immediately to the right of the primary controller

• Compatible Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

• Compatible Power Supplies: 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75

• Wire Category: Category 3 (USB ports)

Application Scenarios

• Safety-Critical Automation: Provides SIL 3 and PLe safety compliance for GuardLogix systems

• Industrial Control Systems: Ensures redundancy and secure operation in manufacturing and process environments

• Secure Configurations: Nonremovable energy storage module prevents unauthorized USB or SD card access

FAQ

• Q: What is the role of the 1756-L7SP?  A: It functions as a safety partner for GuardLogix controllers, enabling SIL 3 and PLe safety compliance.

• Q: Which energy storage modules are supported?  A: The 1756-L7SP supports 1756-SPESMNSE (removable) and 1756-SPESMNRM (nonremovable).

• Q: Where should the module be installed?  A: It must be placed in the chassis slot immediately to the right of the primary controller.

• Q: How does this differ from standard ControlLogix modules?  A: Unlike standard modules, the 1756-L7SP is specifically designed for safety applications with SIL 3/PLe certification.