Allen-Bradley 1756-L81E-NSEXT CPU Module
Allen-Bradley 1756-L81E-NSEXT CPU Module

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Allen-Bradley

Allen-Bradley 1756-L81E-NSEXT CPU Module

SKU: 1756-L81E-NSEXT
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$4,998.88
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Allen-Bradley 1756-L81E-NSEXT ControlLogix 5580 NSE XT Controller, 3MB User Memory, Conformal Coated, No RTC Backup

The Allen-Bradley 1756-L81E-NSEXT is ControlLogix 5580 NSE XT extreme environment controller, NSE = No Stored Energy, no RTC battery backup. It features 3 MB user memory, conformal coated PCB, wide operating temperature range -25°C ~ +70°C, integrated 1Gigabit EtherNet/IP port, local USB 2.0 programming port, 4-character alpha/numeric front LED display. Supports up to 100 EtherNet/IP devices, total 128,000 I/O points and maximum 256 motion axes. Lifecycle: Active. Technical data sourced from official Rockwell Automation ControlLogix 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.

Features

  • Catalog Number: 1756-L81E-NSEXT
  • Product Family: ControlLogix 5580 NSE XT Controller, Logix5000 Platform
  • User Memory: 3 MB
  • NSE Feature: No Stored Energy, no RTC battery backup, no residual stored energy after power off
  • Conformal Coating: Yes, protected against dust, humidity & corrosive gas
  • Operating Temperature: -25°C to +70°C (XT wide temperature range)
  • Embedded Communication: 1 x Gigabit EtherNet/IP port (10/100/1000Mbps)
  • Local Port: USB 2.0 full-speed programming port Type B
  • Front Display: 4-character alpha/numeric LED display
  • Max EtherNet/IP Devices: 100
  • Maximum Total I/O Points: 128,000
  • Motion Axis Support: Up to 256 motion axes
  • Non-Volatile Storage: Compatible with SD card (1784-SD1 / 1784-SD2)
  • Power Dissipation: 6.2 W (21.2 BTU/h)
  • Lifecycle: Active
  • Typical Use: Harsh industrial environments requiring no residual stored energy after power loss, wide temperature fluctuations, dust and moisture

Specifications

Official Rockwell Automation ControlLogix 5580 XT NSE Data

Technical Specifications
Catalog Number 1756-L81E-NSEXT
Series ControlLogix 5580 NSE XT Extreme Environment Controller
User Memory 3 MB
NSE Function No Stored Energy, no RTC battery backup
Operating Temperature -25°C ~ +70°C
Integrated Network 1 x Gigabit EtherNet/IP (10/100/1000 Mbps)
Local Programming Port USB 2.0 Type B
Max Total I/O 128,000 points
Max Motion Axes 256 axes
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
Model note: NSE = No Stored Energy, no RTC battery backup, no residual stored energy after power removal. XT = conformal coated PCB with -25~70°C wide temperature range. Not safety controller, not PlantPAx process controller. Programming software: Studio5000 Logix Designer V33+.

Compatibility & Cross-References

1756-L81E-NSEXT works with standard ControlLogix 1756 chassis, 1756 power supplies, standard 1756 I/O modules. Supports EtherNet/IP motion control. This listing is provided by an independent industrial automation distributor; brand names and part numbers are used for product identification only.

Applications

  • Hazardous / high safety requirement cabinets where no residual stored energy is required after power off
  • Wide temperature range industrial automation with dust, humidity and mild corrosive atmosphere
  • EtherNet/IP multi-axis motion control up to 256 axes
  • System retrofits requiring XT harsh environment and NSE no stored energy feature

Warranty

  • Availability: Active model, in stock available; contact us for real-time stock status.
  • Inspection & testing: each unit is visually inspected and functionally checked before packing.
  • Delivery: orders are processed within 2-4 business days after payment confirmation; standard worldwide delivery is about 5-8 business days, express shipping available, orders over $500 ship free.

Warranty: 12-month seller warranty provided by SHLY-PLC. See our Return Policy for coverage and claims.

Independent supplier: Allen-Bradley part 1756-L81E-NSEXT is supplied by SHLY-PLC, an independent industrial automation distributor. Brand names and part numbers are used for product identification and remain the property of their respective owners; this listing is not affiliated with, sponsored or endorsed by the manufacturer.

Frequently Asked Questions

Q: What is Allen-Bradley 1756-L81E-NSEXT?

A: ControlLogix 5580 NSE XT PLC,3MB memory,conformal coating,-25~70°C wide temp,No Stored Energy (no RTC battery),max 100 EtherNet/IP devices,active product.

Q: What does NSE stand for?

A: NSE = No Stored Energy. No RTC backup battery, no residual stored energy after power removal, meets special safety requirements.

Q: What software programs this controller?

A: Studio5000 Logix Designer version 33.04 or newer.

Q: Is 1756-L81E-NSEXT safety controller?

A: No. It is standard general-purpose NSE XT controller, not GuardLogix safety controller and not PlantPAx process controller.

1756-L81E-NSEXT · 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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