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Allen Bradley

1756-L81ES

$4,899.99
Only 1 left
Usually ships within 24 hours

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Original Packaging

Surplus stock in its original packaging. Units may have been powered on for testing purposes.

  • Product shows no visible signs of handling, use, or damage.
  • Ships in the original manufacturer packaging which:

    May not include the original factory seal.
    May show minor shelf wear or labeling on the outer box.

  • All standard hardware and accessories included unless otherwise noted.
  • Documentation and instructions not guaranteed.
  • Date codes or product series may differ from current manufacturer production.
  • Packaging language and country of origin may vary.
  • Backed by Marci Hardware’s 1-year warranty. Original manufacturer warranty does not apply.

Marci Hardware Packaging

Surplus stock that may or may not have original packaging. If original packaging is unavailable, the product will generally be packaged in aftermarket or Marci Hardware branded packaging. Units may have been powered on for testing purposes.

  • Product shows no visible signs of handling, use, or damage.
  • May ship in the original manufacturer packaging (which may not include the original factory seal), or in aftermarket or Marci Hardware branded packaging if the original packaging is unavailable.
  • Some accessories, hardware, or documentation supplied by the manufacturer may not be present.
  • Date codes or product series may differ from current manufacturer production.
  • Packaging language and country of origin may vary.
  • Backed by Marci Hardware’s 1-year warranty. Original manufacturer warranty does not apply.

Refurbished

Surplus or previously installed units with minor cosmetic imperfections, restored to full working condition.

  • May have prior production or field use.
  • Each unit is inspected, tested, and cleaned by Marci Hardware before shipment.
  • Some accessories, hardware, or documentation supplied by the manufacturer may not be present.
  • Backed by Marci Hardware’s 1-year warranty. Original manufacturer warranty does not apply.
Select your options

Original Packaging

Surplus stock in its original packaging. Units may have been powered on for testing purposes.

  • Product shows no visible signs of handling, use, or damage.
  • Ships in the original manufacturer packaging, which:
    • May not include the original factory seal.
    • May show minor shelf wear or labeling on the outer box.
  • All standard hardware and accessories included unless otherwise noted.
  • Documentation and instructions not guaranteed.
  • Date codes or product series may differ from current manufacturer production.
  • Packaging language and country of origin may vary.
  • Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.

Marci Hardware Packaging

Surplus stock that may or may not have original packaging. If original packaging is unavailable, the product will generally be packaged in aftermarket or Marci Hardware branded packaging. Units may have been powered on for testing purposes.

  • Product shows no visible signs of handling, use, or damage.
  • May ship in the original manufacturer packaging (which may not include the original factory seal), or in aftermarket or Marci Hardware branded packaging if the original packaging is unavailable.
  • Some accessories, hardware, or documentation supplied by the manufacturer may not be present.
  • Date codes or product series may differ from current manufacturer production.
  • Packaging language and country of origin may vary.
  • Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.

Refurbished

Surplus or previously installed units with minor cosmetic imperfections, restored to full working condition.

  • May have prior production or field use.
  • Each unit is inspected, tested, and cleaned by Marci Hardware before shipment.
  • Some accessories, hardware, or documentation supplied by the manufacturer may not be present.
  • Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.

Overnight Shipping Available

Rush service is available during checkout, or contact us for expedited shipping options:

Phone Number: (832) 343-0718

Email: sales@marcihardware.com

Request a quote online

Ships from Stafford, TX

Email 1 Year Warranty

The Allen-Bradley 1756-L81ES GuardLogix 5580 Safety Controller is a compact, high-performance safety PLC designed for applications that require integrated standard control and certified safety. As part of the ControlLogix GuardLogix 5580 platform, this controller combines deterministic performance with robust EtherNet/IP connectivity for modern automation architectures.

The 1756-L81ES provides 3 MB of standard user memory and 1.5 MB of dedicated safety memory, enabling concurrent execution of control and safety logic. It supports high I/O scalability—up to 128,000 discrete I/O points and 4,000 analog I/O points—making it suitable for machine-level and system-level control with growing I/O demands.

Built-in EtherNet/IP and USB interfaces simplify commissioning, diagnostics, and maintenance. Ethernet communication supports 10/100/1000 Mbps, while the USB port operates at 12 Mbps for programming and service tasks.

Technical Details

Specification Details
Manufacturer Allen-Bradley
Product Type GuardLogix 5580 Safety Controller
Product Line ControlLogix
Part Number 1756-L81ES
User Memory 3 MB
Safety Memory 1.5 MB
Non-Volatile Memory 2 GB
Maximum Discrete I/O 128,000 points
Maximum Analog I/O 4,000 points
Built-in Communication USB, EtherNet/IP
Ethernet Communication Speed 10 / 100 / 1000 Mbps
USB Communication Speed 12 Mbps
Maximum Ethernet Nodes 100
Network Connections (via modules) EtherNet/IP, TCP/IP, ControlNet (module-dependent)
Power Dissipation 6.2 W
Weight 0.94 lbs (0.43 kg)
UPC 889508112282

I will ship within one business day. International buyers are welcome. IF you want Expedited Shipping we can help you as well. We can ship under your (FedeX, UPS, DHL) Account if you have one. We Do Trade-Ins as well. Customer satisfaction is our priority. Call us 8323430718

1 Year Warranty ( Manufacturer warranty DO NOT apply )