Allen Bradley 1756-L8SP GuardLogix 5580 Controller

The AB 1756-L8SP is a Safety Partner Controller from the GuardLogix 5580 series, designed to operate in conjunction with a primary GuardLogix controller to achieve high-integrity safety control. This module enables fail-safe operation up to SIL 3 (IEC 61508) and PL d (EN ISO 13849-1), making it ideal for applications with stringent safety requirements.

Installed directly into a ControlLogix chassis, the 1756-L8SP works as a dedicated safety processor alongside a standard controller, ensuring deterministic safety logic execution, diagnostics, and fault response while maintaining modular architecture flexibility.

Technical Specifications

Model: 1756L8SP
Series: GuardLogix 5580
Type: Safety Partner Controller
Primary Controller Compatibility: 1756-L8xES series
Architecture: Modular (ControlLogix Chassis)
Integrated Display: Yes
Application Role: Safety Partner (not standalone)
Chassis Slot Requirement: 1 slot next to primary controller
Safety Functionality: Mirrors and validates safety logic execution

Electrical Specifications

Power Supply Voltage: Supplied via ControlLogix backplane
Backplane Current (5.1V): 2.5 A (typical)
Backplane Current (24V): 14 mA (typical)
Isolation Voltage: 50V continuous (functional insulation, signal to backplane)
Power Dissipation: 5.1 W (approx.)
Thermal Dissipation: 17.4 BTU/hr

Network & Interface Specifications

Ethernet Ports: None (uses communication ports of primary controller)
USB Ports: None
Supported Protocols:
✅ EtherNet/IP (via primary controller)
✅ Modbus (via primary controller)
✅ SERCOS (via primary controller)
❌ TCP/IP (raw)
❌ Data-Highway
❌ PROFIBUS
❌ DeviceNet

Safety Communication:

• Integrated with GuardLogix safety architecture
• Supports CIP Safety over EtherNet/IP (via primary unit)

Mechanical Specifications

Enclosure Type: Open-style for 1756 chassis
Width: 34.55 mm
Height: 145.2 mm
Depth: 136.6 mm
Mounting Type: ControlLogix chassis slot
Front Installation: Yes
Weight: Approx. 200 g
Display: Character LCD for system diagnostics

Environmental Specifications

Operating Temperature: 0…60 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
Shock Rating: 30 g
Vibration Resistance: 2 g, 10–500 Hz
Pollution Degree: 2
Protection Rating: IP20 (when installed in chassis)
Application Suitability: Indoor, cabinet-mounted industrial systems

Compliance & Certifications

Certifications: CE, c-UL-us, ATEX, RoHS
Safety Ratings:

• SIL 3 (IEC 61508)
• PLe / Cat. 4 (EN ISO 13849-1 – when paired with L8xES)
  Standards Met: EN 61131-2, EN 61508, ISO 13849
  Use with: GuardLogix 5580 safety-rated applications and motion control systems

Key Features & Benefits

✅ Integrated Safety Execution – Real-time mirrored execution of safety logic alongside main controller

✅ SIL 3 & PL d Compliance – High-level safety assurance for demanding industrial automation environments

✅ Modular ControlLogix Design – Slot-based configuration for scalable safety architecture

✅ Dedicated Safety Processor – Enables fault-tolerant safety strategies in conjunction with GuardLogix L8xES

✅ Diagnostics Display – Front-facing diagnostics and status reporting simplifies commissioning and maintenance

📦 Order the Allen Bradley 1756-L8SP from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1756-L8SP prices. This GuardLogix safety partner controller is the perfect addition for SIL 3-rated systems—stock available now for fast UK dispatch.

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