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PLC, I/O & HMI
1756-L81ES
Allen-Bradley
Allen-Bradley GuardLogix 5580 safety controller reference for exact-model industrial sourcing inquiries.
This page identifies a sourcing reference. It does not guarantee continuous stock. Availability, condition, quantity, lead time, and commercial terms are confirmed after inquiry.
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Reference details
- Manufacturer / brand
- Allen-Bradley
- Model / reference
- 1756-L81ES
- Series / type
- GuardLogix 5580 safety controller
- Condition
- Confirm with inquiry
- Quantity
- Confirm with inquiry
- Lead time
- Confirm with inquiry
Product information
Product Overview
The 1756-L81ES is a GuardLogix 5580 safety controller built on the same hardware platform as the 1756-L81E. It provides 3 MB of standard (non-safety) user memory plus a dedicated 1.5 MB safety memory partition, a USB programming port, one embedded 1 Gbps EtherNet/IP port and up to 100 EtherNet/IP devices. GuardLogix 5580 systems achieve SIL 2 / PLd capability with the safety task alone, and SIL 3 / PLe capability when used with a safety partner module.
Technical Specifications (Official Rockwell Data)
| Product family | GuardLogix 5580 safety controller |
|---|---|
| Standard user memory | 3 MB |
| Safety memory | 1.5 MB (dedicated partition) |
| Non-volatile memory | Secure Digital (SD) card |
| Embedded network port | 1 × EtherNet/IP, 10 Mbps / 100 Mbps / 1 Gbps |
| EtherNet/IP devices supported | up to 100 |
| Local programming port | 1 × USB 2.0 full-speed, Type B |
| Safety capability | SIL 2 / PLd (safety task); SIL 3 / PLe with safety partner module |
| Power draw | 5 mA @ 1.2 V DC, 1.20 A @ 5.1 V DC |
| Programming software | Studio 5000 Logix Designer (Safety edition task set) |
| Product series | Series B |
| Lifecycle status (Rockwell) | Active |
Lifecycle Status & Availability
Rockwell lists the 1756-L81ES as Active. GuardLogix 5580 is the current safety-controller generation of the 1756 platform and replaces the GuardLogix 5570 (1756-L7xS) line for new safety projects.
Typical Applications
- Press and machine safety retrofit where SIL 3 / PLe-rated emergency stop and guard-locking logic runs in the same chassis as standard control
- Automotive body shops and robotic cells combining motion control and safety interlocks on one EtherNet/IP network
- Applications that must separate safety logic from standard logic in memory while sharing one engineering environment
Related & Compatible Models
Safety memory doubles the partition at each step of the GuardLogix 5580 ladder — the 1756-L81ES carries 1.5 MB safety memory. Its standard-control siblings are the ControlLogix 5580 L81E/L83E/L85E. A safety partner module is required for SIL 3 / PLe capability; confirm the partner catalog number for your chassis when requesting a quotation.
Requesting a Quotation
Include the full catalog number, series and firmware revision from the product label (a nameplate photo is ideal), the safety partner module in use, and the quantity required. Technical data on this page is from official Rockwell sources; commercial terms are confirmed per quotation.
Frequently Asked Questions
What is the difference between 1756-L81ES and 1756-L81E?
The ES is the GuardLogix safety variant: identical 5580 hardware and embedded Gigabit EtherNet/IP, but with an additional 1.5 MB safety memory partition and certification path to SIL 3 / PLe. The L81E is a standard controller without safety certification.
Do I need a safety partner module?
For SIL 2 / PLd safety applications the safety task alone is sufficient. SIL 3 / PLe capability requires a safety partner module installed in the chassis. State your target safety level in the quotation request so the complete configuration can be quoted.
Can a GuardLogix project be converted from a GuardLogix 5570?
Yes — Studio 5000 supports migrating GuardLogix 5570 projects to the 5580 platform. The chassis, safety I/O and power supplies are typically reused; verify firmware and safety partner compatibility against your installed hardware.
Which safety networks does it support?
Safety over EtherNet/IP (CIP Safety) is supported on the embedded port. Confirm CIP Safety device compatibility for your specific remote I/O when planning the migration.
MODEL INQUIRY
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