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Allen-Bradley 1756-L81E ControlLogix 5580 programmable automation controller

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Allen-Bradley 1756-L81E

by Allen-Bradley

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OverviewThe Allen-Bradley 1756-L81E is an advanced ControlLogix 5580 Logix Controller, precisely engineered for the rigorous demands of contemporary industrial automation. This high-performance unit provides a substantial 3MB user memory, allowing ample capacity for intricate operational processes. Its integrated 1GB Ethernet port facilitates incredibly fast and dependable network communication, essential for modern distributed control systems. Additionally, a convenient USB 2.0 port supports rapid programming, diagnostics, and firmware updates, thereby minimizing operational interruptions and simplifying maintenance. Designed for exceptional processing capability, the 1756-L81E seamlessly integrates into demanding control, motion, and safety applications, consistently delivering robust performance and outstanding reliability.Flexibility and expandability are fundamental to the 1756-L81E's design. Supporting an impressive 60 EtherNet/IP devices, 32 tasks, and 1,000 programs per task, this controller establishes a versatile foundation for expanding and evolving automation systems. Its complete compatibility with the Studio 5000 Automation Engineering & Design Environment ensures straightforward integration and efficient programming, enabling engineers to create and deploy sophisticated control solutions with ease. This powerful combination of hardware and software makes the 1756-L81E an indispensable element for optimizing operational efficiency and achieving superior control across various industrial settings.Key Features Generous 3MB User Memory: Provides extensive capacity for large-scale automation projects and complex programming requirements. Integrated 1GB Ethernet Port: Enables high-speed, dependable industrial communication for smooth data exchange across network infrastructure. High-Speed USB 2.0 Port (12 Mbps): Facilitates quick and easy programming, diagnostics, and efficient firmware updates. Supports up to 60 EtherNet/IP Devices: Offers robust networking capabilities for comprehensive industrial control systems. Manages 32 Tasks & 1,000 Programs Per Task: Delivers exceptional control adaptability and expandability for intricate applications. 4-Character Alpha/Numeric Display: Allows for swift system identification and immediate diagnostics. Studio 5000 Compatibility: Ensures simplified programming and seamless system integration for accelerated development cycles. Technical Specifications Model: 1756-L81E Series: ControlLogix 5580 User Memory: 3MB Communication Ports: 1 x USB 2.0 (12 Mbps), 1 x 1GB Ethernet Port Maximum EtherNet/IP Devices: 60 Maximum Tasks: 32 Maximum Programs per Task: 1,000 Display: 4-Character Alpha/Numeric Programming Software: Studio 5000 Automation Engineering & Design Environment Chassis Compatibility: ControlLogix Operating Temperature: 0°C to 60°C (32°F to 140°F) Applications Advanced Industrial Automation: Excels in complex and high-speed automation tasks across diverse industries. Precision Manufacturing & Motion Control: Enables real-time, accurate control for critical manufacturing processes. SCADA & Distributed Control Systems (DCS): Ensures efficient data processing and robust monitoring for distributed systems. High-Speed Packaging & Assembly Lines: Provides optimized and reliable control for demanding, fast-paced production environments. Energy & Utility Automation: Enhances system reliability and efficiency in critical industrial control applications. Why Choose Unmatched High-Speed 1GB Ethernet: Guarantees fast, secure, and reliable data exchange vital for modern industrial networks. Superior Multi-Tasking & Scalability: Effortlessly handles complex control architectures, supporting multiple tasks and extensive I/O for future growth. Simplified Configuration with USB 2.0: Streamlines programming, diagnostics, and updates, significantly reducing setup and maintenance time. Seamless Studio 5000 Integration: Leverages the powerful Studio 5000 environment for efficient programming and rapid deployment. Robust & Reliable Performance: Engineered for continuous operation in challenging industrial settings. Order NowEnhance your industrial operations with the Allen-Bradley 1756-L81E ControlLogix 5580 Controller. Contact us today for pricing and availability.FAQWhat is the memory capacity of the 1756-L81E controller?The 1756-L81E controller is equipped with a substantial 3MB of user memory, providing ample space for complex automation programs and data.How does the 1GB Ethernet port benefit industrial applications?The integrated 1GB Ethernet port ensures ultra-fast and highly reliable network communication, which is crucial for seamless data exchange and efficient operation in distributed control systems.Can I easily program and diagnose the 1756-L81E?Yes, the controller features a high-speed USB 2.0 port that simplifies programming, diagnostics, and firmware updates, contributing to reduced downtime and streamlined maintenance procedures.

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PRODUCT DETAILS

Allen-Bradley 1756-L81E

Overview

This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem
  • Engineered to integrate inside ControlLogix installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 1756-L81E
  • Series: ControlLogix 5580
  • User Memory: 3MB
  • Communication Ports: 1 x USB 2.0 (12 Mbps), 1 x 1GB Ethernet Port
  • Maximum EtherNet/IP Devices: 60
  • Maximum Tasks: 32
  • Maximum Programs per Task: 1,000
  • Display: 4-Character Alpha/Numeric
  • Programming Software: Studio 5000 Automation Engineering & Design Environment
  • Chassis Compatibility: ControlLogix
  • Operating Temperature: 0°C to 60°C (32°F to 140°F)

Applications

  • Advanced Industrial Automation: Excels in complex and high-speed automation tasks across diverse industries.
  • Precision Manufacturing & Motion Control: Enables real-time, accurate control for critical manufacturing processes.
  • SCADA & Distributed Control Systems (DCS): Ensures efficient data processing and robust monitoring for distributed systems.
  • High-Speed Packaging & Assembly Lines: Provides optimized and reliable control for demanding, fast-paced production environments.
  • Energy & Utility Automation: Enhances system reliability and efficiency in critical industrial control applications.

Why Choose the 1756-L81E?

  • Unmatched High-Speed 1GB Ethernet: Guarantees fast, secure, and reliable data exchange vital for modern industrial networks.
  • Superior Multi-Tasking & Scalability: Effortlessly handles complex control architectures, supporting multiple tasks and extensive I/O for future growth.
  • Simplified Configuration with USB 2.0: Streamlines programming, diagnostics, and updates, significantly reducing setup and maintenance time.
  • Seamless Studio 5000 Integration: Leverages the powerful Studio 5000 environment for efficient programming and rapid deployment.
  • Robust & Reliable Performance: Engineered for continuous operation in challenging industrial settings.

Availability & Shipping

  • In stock: 1756-L81E ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1756-L81E ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1756-L81E controller is equipped with a substantial 3MB of user memory, providing ample space for complex automation programs and data.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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Independent Supplier Notice

PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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