1756-L81E Allen Bradley

New Official Authentic Product

Spot Product & Free Shipping

Upgrade your control game with the Allen Bradley 1756-L81E ControlLogix5580 Controller. With 3MB user memory, USB 2.0 port, and a powerful 1GB Ethernet port supporting up to 60 EtherNet/IP devices, this controller is ready for anything you throw at it. Plus, with support in Studio 5000 Automation Engineering & Design Environment, programming is a breeze. Get yours today and take control of your automation processes like never before!

Ensure Safety

Get A Quote


+86 13528501617


+86 13528501617



Warranty:12 month warranty handled by www.eastplc.com
Shipping:Worldwide shipping via UPS, DHL, and TNT
Repairs:We provide repair service on all products.




There are no reviews yet.

Be the first to review “1756-L81E Allen Bradley”

Your email address will not be published. Required fields are marked *

1756-L81E Allen Bradley Controller

If you’re in the market for an industrial controller, you’ve likely heard of Allen Bradley and their 1756-L81E controller. This controller is a heavy-duty, reliable and robust industrial automation system used to control production processes in manufacturing environments. In this article, we will discuss the advantages and features of the 1756-L81E controller and how it can help you optimize your production process. We will also analyze the cost impact of using an Allen Bradley controller, as well as any potential drawbacks. Finally, we’ll discuss some alternative controllers that offer similar features and performance. Read on to learn more!

Features of the 1756-L81E Allen Bradley Controller

The Allen Bradley 1756-L81E Controller is a microprocessor-based controller that provides flexibility and performance in a small package. This controller is ideal for applications requiring high-speed control and/or where space is limited. The 1756-L81E Controller features include:

-16MHz 32-bit microprocessor

-8 kB of user programmable flash memory

-256 kB of user data RAM

-1MB of nonvolatile user data EEPROM

-Support for up to 8 I/O modules

Specifications of the 1756-L81E Allen Bradley Controller

The Allen Bradley 1756-L81E is a high performance,stand-alone controller that is designed for use in a wide variety of applications. The controller features a 32-bit processor, 512 KB of Flash memory, and 4 MB of SRAM. The controller also includes an Ethernet port, USB port, and RS232 port.

Pros and Cons of the 1756-L81E Allen Bradley Controller

The Allen Bradley 1756-L81E is a powerful and versatile controller that can be used in a variety of industrial applications. However, like all products, it has its pros and cons. Here are some of the key pros and cons of the 1756-L81E controller:


1. The 1756-L81E offers a high degree of flexibility, with 16 configurable digital I/O channels and 4 analog inputs/outputs. This allows it to be used in a wide range of applications.

2. It features an integrated Ethernet port, which allows for easy connection to other devices and systems on the network.

3. The controller features built-in flash memory, which makes it able to store large programs and data files.

4. It has a fast processing speed, with a 1 GHz CPU and 512 MB of RAM. This makes it able to handle demanding tasks quickly and efficiently.

5. The controller comes with a comprehensive software suite, which includes programming tools, diagnostic software, and more. This makes it easy to get started with using the controller right away.


1. The 1756-L81E is a relatively expensive controller, with a price tag of around $4,000 USD. This may make it unaffordable for some users.

2. Thecontroller requires a special power supply unit (PSU), which is not included in the purchase price.

How to Use the 1756-L81E Allen Bradley Controller

The Allen Bradley 1756-L81E is a powerful Controller that can be used to automate processes and production lines. In this blog post, we’ll show you how to use the 1756-L81E to its full potential.

When using the 1756-L81E, it’s important to keep in mind its capabilities and limitations. TheController is able to handle up to 8 I/O modules, which means it can control a maximum of 64 input/output points. It also has an Ethernet port and two USB ports, which can be used for programming or connecting to peripherals.

The 1756-L81E also has a few safety features, such as an emergency stop input and a safe torque off output. These features make the Controller ideal for applications where safety is a concern.

To get started using the 1756-L81E, first make sure that all of the I/O modules are properly installed. Next, connect the Controller to your computer via USB and launch the programming software. Once the software is open, you can begin creating your programs.

When writing programs for the 1756-L81E, it’s important to keep in mind the order of execution. The Controller will execute each instruction in order from top to bottom. If you want certain instructions to be executed only when certain conditions are met, you’ll need to use if/then statements.

Once your program is complete, you can download

Applications of the 1756-L81E Allen Bradley Controller

The Allen Bradley 1756-L81E controller is a versatile and powerful tool for managing industrial processes. It can be used in a wide variety of applications, from simple machine control to complex process management. Some of the most common applications for the 1756-L81E controller include:

Machine Control: The 1756-L81E controller can be used to control a wide variety of machines, from simple machines like pumps and motors to more complex machines like CNC lathes and milling machines.

Process Control: The 1756-L81E controller can be used to manage and automate complex processes. It can be used to monitor process parameters, such as temperature, pressure, and flow rate, and to control process variables, such as valve positions and motor speeds.

Motion Control: The 1756-L81E controller can be used to control the movement of objects, such as robots and other automated equipment. It can be used to create complex motion profiles and sequences.

Data Acquisition: The 1756-L81E controller can be used to collect data from sensors and other devices. This data can then be used to monitor or control the process.


The 1756-L81E Allen Bradley Controller has been a reliable and dependable option for controlling industrial processes since it was first released in 2007. It is highly compatible with other systems, making it an excellent choice for those looking to upgrade their existing system or start from scratch. Additionally, its intuitive design makes programming and maintenance much easier compared to other controllers on the market. All in all, this controller provides users with a simple yet powerful solution for managing industrial processes efficiently and reliably.