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The Allen-Bradley 1756-L81ESK is GuardLogix 5580 safety controller under Rockwell Logix5000 platform with conformal coating. It features 3 MB standard user memory plus dedicated 1.5 MB safety memory, integrated 1Gigabit EtherNet/IP port, local USB programming port, 4-character alpha/numeric front LED display. It runs both standard machine control and SIL 3 safety logic on single controller, supporting up to 100 EtherNet/IP devices and total 128,000 I/O points for environments with humidity, dust and mild corrosive contaminants. Lifecycle: End of Life, discontinuation date Dec 31,2026. Technical data sourced from official Rockwell Automation GuardLogix 5580 datasheet. Supplied by SHLY-PLC, an independent industrial automation distributor; each unit undergoes visual inspection and functional testing before shipment. Contact our team for compatibility verification and direct replacement options.
Official Rockwell Automation GuardLogix 5580 Data
| Technical Specifications | |
| Catalog Number | 1756-L81ESK |
| Series | GuardLogix 5580 Safety Controller (Coated Version) |
| Standard User Memory | 3 MB |
| Safety Memory | 1.5 MB dedicated safety memory |
| Operating Temperature | 0°C ~ +60°C |
| Integrated Network | 1 x Gigabit EtherNet/IP |
| Local Programming Port | USB 2.0 Type B |
| Max Total I/O | 128,000 points |
| Safety Performance Level | SIL 3 / PL e / Category 4 |
| Power Dissipation | 6.2 W (21.2 BTU/h) |
| Front Display | 4-character alpha/numeric LED |
| Compatible SD Card | 1784-SD1, 1784-SD2 |
| Agency Certifications | |
| Certifications | cULus, CE, C-Tick, SIL3 certified |
1756-L81ESK works with standard ControlLogix 1756 chassis, 1756 power supplies, 1756 standard & safety I/O modules. It runs standard control and SIL3 safety logic in one processor, communicating over EtherNet/IP safety connections. This listing is provided by an independent industrial automation distributor; brand names and part numbers are used for product identification only.
Warranty: 12-month seller warranty provided by SHLY-PLC. See our Return Policy for coverage and claims.
A: GuardLogix 5580 SIL3 safety controller with conformal coating, standard operating temp 0~60°C,3MB standard +1.5MB dedicated safety memory, EOL model, discontinued Dec 31,2026.
A: 1756-L81ES: uncoated,0~60°C; 1756-L81ESK: conformal coated,0~60°C; 1756-L81ESXT: conformal coated, wide temperature -25~70°C XT version.
A: SIL 3, PL e, Category 4 safety certification.
A: Studio5000 Logix Designer with GuardLogix safety add-on profiles.
1756-L81ESK · Technical reference data · Independently supplied by SHLY-PLC
Standard International (tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders of $500 or less; free on orders over $500.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Remote-area and overweight surcharges, where applicable, are shown before checkout.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use. Manufacturer or factory warranty service is not applicable, and extended warranty packages are not provided.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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