Allen-Bradley 1756-L81EPXT PLC Controller
Allen-Bradley 1756-L81EPXT PLC Controller

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Allen-Bradley

Allen-Bradley 1756-L81EPXT PLC Controller

SKU: 1756-L81EPXT
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$3,229.00
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Allen-Bradley 1756-L81EPXT ControlLogix 5580 Process XT Controller, 3MB User Memory

The Allen-Bradley 1756-L81EPXT is ControlLogix 5580 Process XT extreme environment process controller built on Rockwell Logix5000 PlantPAx platform. It features conformal coating, extended wide operating temperature range (-25°C ~ +70°C), 3 MB user memory, integrated 1Gigabit EtherNet/IP port, local USB 2.0 programming port, 4-character alpha/numeric front LED display. Optimized with native PlantPAx process instruction set and dedicated process tasking model, supporting up to 100 EtherNet/IP devices and total 128,000 I/O points for harsh process industries exposed to wide temperature, moisture, dust and corrosive contaminants. Technical data sourced from official Rockwell Automation ControlLogix 5580 Process XT 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-L81EPXT
  • Product Family: ControlLogix 5580 Process XT Controller, Logix5000 / PlantPAx Platform
  • User Memory: 3 MB
  • Conformal Coating: Yes, ISA 71.04 G3 severity, protects against dust, humidity & corrosive gas
  • Extended Operating Temperature: -25°C to +70°C (-13°F ~ +158°F)
  • Embedded Communication: 1 x Gigabit EtherNet/IP port
  • Local Port: USB 2.0 full-speed programming port (temporary local use only)
  • Front Display: 4-character alpha/numeric LED display
  • Max EtherNet/IP Devices: 100
  • Maximum Total I/O Points: 128,000
  • Task Structure: 32 tasks optimized for PlantPAx process control (1 continuous + periodic / event tasks)
  • Non-Volatile Storage: Compatible with SD card (1784-SD1 / 1784-SD2)
  • Power Dissipation: 6.2 W
  • Lifecycle: Active production
  • Typical Use: PlantPAx process control for harsh, wide-temperature industrial process sites

Specifications

Official Rockwell Automation ControlLogix 5580 Process XT Data

Technical Specifications
Catalog Number 1756-L81EPXT
Series ControlLogix 5580 Process XT Controller (PlantPAx)
User Memory 3 MB
Operating Temperature -25°C ~ +70°C (-13°F ~ +158°F)
Integrated Network 1 x Gigabit EtherNet/IP
Local Programming Port USB 2.0 Type B
Max Total I/O 128,000 points
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, ISA 71.04 G3 coating rating
Model note: 1756-L81EPXT is the XT harsh environment Process variant of 1756-L81EP, built for PlantPAx process control with native process instruction set. Compare: 1756-L81EP (standard 0~60°C, non XT); 1756-L81EPXT has conformal coating and extended temperature -25~70°C. This is standard process controller (not safety GuardLogix). Programming software: Studio5000 Logix Designer V33+. Direct replacement for end-of-life 1756-L81EP.

Compatibility & Cross-References

1756-L81EPXT works with ControlLogix 1756 XT rated chassis, 1756 power supplies, standard 1756 I/O modules. Optimized for PlantPAx distributed process control over EtherNet/IP. This listing is provided by an independent industrial automation distributor; brand names and part numbers are used for product identification only.

Applications

  • PlantPAx distributed process control in oil & gas, chemical, water / wastewater plants
  • Process automation in cold, unconditioned, outdoor industrial facilities
  • Mining & heavy industry process control with dust, condensation and corrosive fumes
  • Batch control, PID, analog loop control for harsh manufacturing environments
  • Spare replacement for legacy 1756-L81EP PlantPAx controller systems

Warranty

  • Availability: Active production, new & surplus 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-L81EPXT 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-L81EPXT?

A: ControlLogix 5580 Process XT harsh environment PlantPAx controller, 3MB memory, conformal coating, -25~70°C wide temperature operation, optimized for process control applications.

Q: What is difference between L81EP and L81EPXT?

A: 1756-L81EP: standard process controller, operating 0~60°C. 1756-L81EPXT: XT harsh environment version with conformal coating and -25~70°C extended temperature rating.

Q: What software supports this controller?

A: Studio5000 Logix Designer version 33.04 or newer with PlantPAx library.

Q: Is this a safety controller?

A: No, this is standard PlantPAx process controller. For safety applications, use GuardLogix models such as 1756-L81ESXT.

1756-L81EPXT · 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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