The Allen Bradley 1756‑L8SPK is a GuardLogix 5580 safety partner controller.
Technical Specifications
- Model: 1756‑L8SPK
- User Memory: Standard memory for control programs
- Safety Memory: Dedicated memory for safety logic
- Ethernet: Embedded 1 Gb EtherNet/IP port
- USB Port: USB 2.0 for local programming only
- I/O Capacity: Up to 128,000 digital & 4,000 analog points
- Power Consumption: ~5 mA @ 1.2 V; ~1.20 A @ 5.1 V
- Power Dissipation: ~6 W
- Dimensions: ~5.6 × 18.2 × 23.6 cm; Weight ~0.50 kg
- Temperature Range: 0–60 °C operating; –40–85 °C storage
- Certifications: UL, CSA, CE, ATEX, IECEx, FM, KC, RCM, TÜV, Marine
- Conformal Coating: Yes – sealed for harsh environments
- Lifecycle Status: End of Life (Dec 31, 2026)
Key Features
- GuardLogix safety partner capable of SIL‑3/PLe-certified safety logic
- Integrated Ethernet and USB connectivity for flexible system integration
- Conformal coating protects against moisture, dust, and contaminants
- Scalable I/O capacity with high-speed, integrated safety control
Compatible Components & Accessories
- ControlLogix/GuardLogix 5580 chassis and suitable power supplies
- Studio 5000 Logix Designer with GuardLogix safety configuration
- PanelView Plus HMIs and SD memory cards for program and data storage
Industry Applications
- Safety-engineered control systems in manufacturing and process plants
- Food & beverage, pharmaceutical, oil/gas, water treatment systems
- Machine control requiring certified safety logic and rugged design
Installation & Maintenance Notes
- Install in GuardLogix-capable 5580 chassis with sealed ports
- USB port for programming only—disconnect after use
- Keep unused Ethernet/USB ports covered to preserve conformal integrity
- Power down before inserting/removing SD cards to avoid data loss
- Use proper grounding and cable shielding per standard practices
Request a Quote
For pricing and availability, please Contact Us or call 1‑800‑755‑2883.
Disclaimer: TCI Supply is not an authorized Allen Bradley Distributor.
Frequently Asked Questions
Is this controller safety-certified?
Yes—the L8SPK is a GuardLogix safety partner controller with certified SIL‑3/PLe safety logic and dedicated memory.
Can it handle large I/O systems?
Yes—it supports up to 128,000 digital and 4,000 analog points, suitable for extensive automation networks.
What does the conformal coating protect against?
It protects against moisture, dust, corrosive atmospheres, and industrial contaminants.
