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Allen-Bradley 1756-L81EP ControlLogix 5580E Process Controller

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Allen-Bradley 1756-L81EP

by Allen-Bradley

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OverviewElevate your industrial operations with the Allen-Bradley 1756-L81EP ControlLogix 5580E Process Controller. This powerful unit is meticulously designed for demanding process control applications, providing exceptional performance and reliability. Featuring 3MB of user memory, it effortlessly handles intricate, data-intensive tasks. The integrated 1GB Ethernet port ensures rapid communication across your network, while the USB 2.0 interface simplifies programming, diagnostics, and firmware updates. Engineered for scalability, the 1756-L81EP supports up to 100 EtherNet/IP devices, making it an excellent choice for large-scale automation systems requiring extensive data acquisition and real-time control. Its seamless compatibility with the Studio 5000 Automation Engineering & Design Environment streamlines system development and maintenance, ensuring smooth and effective operations.Key Features 3MB User Memory: Ample capacity for sophisticated control algorithms and extensive data logging. 1GB Ethernet Port: Facilitates high-speed, dependable data exchange and network integration for vital industrial communication. USB 2.0 Port (12 Mbps): Provides quick local connectivity for programming, troubleshooting, and system updates. Supports up to 100 EtherNet/IP Devices: Enables robust and scalable network architectures for comprehensive automation solutions. 4-Character Alpha/Numeric Display: Delivers instant system identification and crucial operational status feedback. Optimized for Process Control: Engineered to excel in continuous, high-speed industrial operations requiring precision and stability. Studio 5000 Compatibility: Guarantees streamlined project development, configuration, and maintenance within a familiar environment. Technical SpecificationsThe Allen-Bradley 1756-L81EP is a dependable component within the ControlLogix 5580E series, crafted to meet rigorous industrial benchmarks. Model: 1756-L81EP Series: ControlLogix 5580E User Memory: 3MB Communication Ports: 1 x USB 2.0 (12 Mbps), 1 x 1GB Ethernet Port Maximum EtherNet/IP Devices: 100 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) ApplicationsThe Allen-Bradley 1756-L81EP is adaptable to power a wide range of industrial applications, delivering stable and efficient control where most needed. Advanced Process Control & Optimization: Essential for real-time monitoring, precise adjustments, and enhancing complex industrial processes. Large-Scale Industrial Automation: Perfectly suited for managing intricate high-speed automation tasks across extensive operations. SCADA & Distributed Control Systems (DCS): Boosts data processing capabilities and facilitates superior remote control and system oversight. High-Speed Manufacturing & Packaging: Ensures continuous, efficient production lines with reliable and rapid control responses. Energy & Utility Management: Delivers critical control and stability in demanding environments, ensuring operational integrity. Water/Wastewater Treatment: Provides robust control for pumps, valves, and other critical infrastructure systems. Why ChooseOpting for the Allen-Bradley 1756-L81EP offers numerous benefits for your industrial operations, making it a prudent investment. Optimized for Process Control: Specifically engineered to excel in challenging industrial environments, ensuring consistent performance. High-Speed 1GB Ethernet Communication: Guarantees fast, reliable, and secure data exchange, minimizing downtime and maximizing efficiency. Supports Complex Control Architectures: Capable of handling multiple tasks and extensive I/O, adapting to evolving automation needs. Order NowEnhance your industrial control systems today by integrating the Allen-Bradley 1756-L81EP ControlLogix 5580E Process Controller. Experience unparalleled performance and reliability for your most critical applications. Contact us for pricing and availability.FAQHow much user memory does the 1756-L81EP have?The 1756-L81EP is equipped with 3MB of user memory.What communication ports are included on this controller?This controller features one USB 2.0 (12 Mbps) port and one 1GB Ethernet port.What is the maximum number of EtherNet/IP devices supported?The 1756-L81EP supports up to 100 EtherNet/IP devices.

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PRODUCT DETAILS

Allen-Bradley 1756-L81EP

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

The Allen-Bradley 1756-L81EP is a dependable component within the ControlLogix 5580E series, crafted to meet rigorous industrial benchmarks.

  • Model: 1756-L81EP
  • Series: ControlLogix 5580E
  • User Memory: 3MB
  • Communication Ports: 1 x USB 2.0 (12 Mbps), 1 x 1GB Ethernet Port
  • Maximum EtherNet/IP Devices: 100
  • 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

The Allen-Bradley 1756-L81EP is adaptable to power a wide range of industrial applications, delivering stable and efficient control where most needed.

  • Advanced Process Control & Optimization: Essential for real-time monitoring, precise adjustments, and enhancing complex industrial processes.
  • Large-Scale Industrial Automation: Perfectly suited for managing intricate high-speed automation tasks across extensive operations.
  • SCADA & Distributed Control Systems (DCS): Boosts data processing capabilities and facilitates superior remote control and system oversight.
  • High-Speed Manufacturing & Packaging: Ensures continuous, efficient production lines with reliable and rapid control responses.
  • Energy & Utility Management: Delivers critical control and stability in demanding environments, ensuring operational integrity.
  • Water/Wastewater Treatment: Provides robust control for pumps, valves, and other critical infrastructure systems.

Why Choose the 1756-L81EP?

Opting for the Allen-Bradley 1756-L81EP offers numerous benefits for your industrial operations, making it a prudent investment.

  • Optimized for Process Control: Specifically engineered to excel in challenging industrial environments, ensuring consistent performance.
  • High-Speed 1GB Ethernet Communication: Guarantees fast, reliable, and secure data exchange, minimizing downtime and maximizing efficiency.
  • Supports Complex Control Architectures: Capable of handling multiple tasks and extensive I/O, adapting to evolving automation needs.

Availability & Shipping

  • In stock: 1756-L81EP 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-L81EP ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1756-L81EP is equipped with 3MB of user memory.

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.

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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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