• Brand
  Allen‑Bradley
• Model
  1756-L81E
• Product Name
  ControlLogix 5580 Controller
• Place of Origin
  United States
• HS Code
  85371090
• Dimensions
  54.61 mm × 181.61 mm × 236.22 mm
• Weight
  0.394 kg
• Operating Temperature
  0 °C to +60 °C
• Storage Temperature
  -40 °C to +85 °C
• Power Supply
  6.2 W
• Warranty
  12 month
• Product Status
  New and original

Backed by abundant in-stock inventory and nearly 20 years of industry experience, our company stands as a leading player in the industrial control sector.We offer an extensive range of industrial control products covering numerous models. Should you have any other requirements, please feel free to contact us, and we will respond to you promptly.

Our main brand:

1.ABB's module cards, touch screens, controllers, etc., such as PP846 touch screen, IGCT starting with 5SHY, PM starting controller, AI, DO starting input/output module, SP starting Bailey module, etc

2.GE's module card CPUs, such as VMIC starter, IS200, IS215, IS400, IS420 series, etc,

3.Emerson's card components and EPRO probes, Westinghouse 1C series, Honeywell CC series, Schneider 140 series, Envision full series, Bentley 3500 series, Rexroth motors and drives, and Foxboro small modules.

Platform & Hardware Features

The 1756-L81E is a high-performance modular controller belonging to the Rockwell Automation ControlLogix 5580 series, fully compatible with standard 1756 ControlLogix chassis. It occupies a single chassis slot and is powered entirely through the chassis backplane without requiring external power wiring. Integrated with a non-removable energy storage module, the controller can retain system data during transient power failures without additional backup batteries. A built-in 4-character alphanumeric front display provides real-time operating status, fault code prompts and on-site rapid diagnostic functions for convenient field maintenance.

Memory & Processing Performance

The controller is equipped with 3 MB user program memory and supports up to 32 independent scheduled control tasks, with multiple executable user programs configured for each task. It features efficient tag data processing, fast logic execution and high-speed event response, adapting to discrete control, process control and integrated motion control scenarios. A reserved SD card slot supports program backup, firmware upgrading and offline data storage via external SD storage media, improving system maintainability and data recoverability.

Communication Interfaces

It is equipped with one Gigabit EtherNet/IP port (10/100/1000 Mbps), supporting high-speed I/O communication, multi-axis motion control, HMI data interaction and peer-to-peer data transmission between controllers, with a maximum connection capacity of 100 EtherNet/IP field devices. One USB 2.0 full-speed port is specially designed for local program uploading and downloading, online program editing, firmware updates and daily controller maintenance. All communication ports adopt enhanced isolation design to effectively resist industrial electromagnetic interference and ensure stable long-term communication operation.

Software & Programming

Configuration and programming are implemented through Studio 5000 Logix Designer engineering software. Adopting a unified tag-based programming architecture, the controller supports multiple standard programming languages, including ladder diagram, structured text, function block diagram and sequential function chart. It supports non-stop online program modification and debugging, which greatly improves the efficiency of system commissioning, upgrade and daily maintenance without affecting normal production operation.

Functional Capabilities

The controller supports EtherNet/IP network-based integrated motion control and can realize coordinated control of multi-axis motion systems. It provides comprehensive diagnostic functions for chassis modules, network links and field I/O channels to quickly locate and eliminate faults. Built-in firmware encryption and digital signature mechanisms strengthen system network security and prevent unauthorized firmware modification and malicious tampering. It supports distributed I/O architecture, which can be flexibly connected with local chassis I/O and remote distributed I/O modules to build scalable automation control systems.

Environmental & Reliability

The operating temperature range is 0 °C to 60 °C. The hardware structure is optimized to withstand industrial vibration and shock loads, complying with c-UL-us, IEC and other international industrial certification standards. It is suitable for cabinet-mounted installation in conventional industrial environments with stable temperature and humidity and no severe corrosive interference.

Electrical Specification

The controller obtains power through the chassis backplane, with a current draw of 1.20 A at 5.1 V DC and 5.0 mA at 1.2 V DC. The typical overall power dissipation of the module is 6.2 W, which provides accurate basis for chassis power supply capacity calculation and system load matching.

Application Scope

This controller is mainly applicable to medium-sized industrial automation control systems, widely used in assembly production lines, packaging equipment, water treatment systems, turbine auxiliary control and general manufacturing process control. It features strong scalability, and users can expand system functions flexibly by configuring additional communication modules, analog I/O modules and digital I/O modules on the ControlLogix backplane.

Frequently Asked Questions (FAQ)

1.How fast will you reply to my inquiry?

We process all inquiries efficiently and will respond promptly once we receive your message.

2.Do you carry large inventory of industrial control parts?

We maintain massive ready stock of mainstream automation spare parts to shorten lead times.

3.Can you source discontinued or obsolete PLC & DCS modules?

Absolutely.
We specialize in sourcing hard-to-find, obsolete and out-of-production industrial control components.

4.Do you inspect goods before shipment?

Every product undergoes thorough inspection before packing and dispatch.

5.Can you ship orders worldwide?

We provide global shipping with flexible logistics for urgent and regular orders.

6.What payment methods are available?

We accept multiple secure payment options. Please contact our sales team for detailed terms