Allen Bradley 1756-L84E GuardLogix 5580 Controller
Allen Bradley 1756-L84E GuardLogix 5580 Controller
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Brand:Allen Bradley PLC Item No.:1756-L84E Product Origin:USA Product Dimensions:145.2 x 34.6 x 139.6 mm Product Weight:0.394 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1756-L84E ControlLogix 5580 is a programmable automation controller designed for complex industrial control systems. Manufactured by Rockwell Automation, it combines substantial application memory, high-speed Ethernet communication, and integrated motion capabilities in a chassis-based controller.
With 20 MB of user memory and support for up to 250 EtherNet/IP devices, the 1756-L84E can coordinate distributed automation equipment and execute demanding control applications. Its embedded Gigabit Ethernet port provides connectivity to compatible drives, remote I/O systems, operator interfaces, and other industrial network devices.
The controller is programmed through Studio 5000 Logix Designer, providing an integrated environment for developing, configuring, and maintaining automation projects. Its compatibility with the ControlLogix 1756 platform makes it suitable for manufacturing facilities, production lines, and process automation installations.
When selecting this controller for a new installation or replacement project, engineers should verify firmware compatibility, chassis requirements, network configuration, I/O capacity, and application memory requirements. It is also important to distinguish the 1756-L84E from the 1756-L84ES GuardLogix safety controller when safety-related functions are required.
Technical Specifications
Parameter
Description
Brand
Allen-Bradley
Manufacturer
Rockwell Automation
Model
1756-L84E
Product Series
ControlLogix 5580
Product Type
Programmable Automation Controller
Controller Type
Standard Controller
User Memory
20 MB
EtherNet/IP Devices
Up to 250
Ethernet Port
1 Gigabit EtherNet/IP
Programming Port
1 USB port
Integrated Motion
Supported
Motion Axis Support
Up to 256
Programming Software
Studio 5000 Logix Designer
Chassis Compatibility
ControlLogix 1756 chassis
Slot Width
1 slot
Dimensions
145.2 × 34.6 × 139.6 mm
Weight
0.394 kg / 0.87 lb
Recommended Related Models
The following Allen-Bradley controllers belong to the ControlLogix 5580 family and are useful for system configuration comparisons:
1756-L81E – ControlLogix 5580 controller with 3 MB user memory.
1756-L82E – ControlLogix 5580 controller with 5 MB user memory.
1756-L83E – ControlLogix 5580 controller with 10 MB user memory.
1756-L85E – ControlLogix 5580 controller with 40 MB user memory.
1756-L84ES – GuardLogix 5580 safety controller with 20 MB standard memory and 6 MB safety memory; a different controller type.
The Allen-Bradley 1756-L84E is a high-performance ControlLogix 5580 programmable automation controller manufactured by Rockwell Automation. It is designed for demanding industrial control applications that require reliable processing, integrated motion capabilities, and high-speed EtherNet/IP communication.
Typical applications include:
Manufacturing automation: Coordinating production equipment, control logic, and distributed I/O.
Automotive production lines: Managing automated assembly processes and machine sequences.
Material handling: Controlling conveyors, transfer systems, and automated handling equipment.
Packaging machinery: Coordinating machine operations and production sequences.
Process automation: Monitoring equipment conditions and executing complex control strategies.
Motion control systems: Supporting integrated motion applications through compatible EtherNet/IP devices.
Advantages and Key Features
20 MB User Memory
The 1756-L84E provides 20 MB of user memory for application programs, controller data, and industrial automation tasks.
High-Speed EtherNet/IP Communication
The controller features an embedded 1 Gigabit Ethernet port supporting high-speed communication with compatible industrial devices. It supports up to 250 EtherNet/IP devices.
Integrated Motion Capabilities
The ControlLogix 5580 platform supports integrated motion control over EtherNet/IP, with support for up to 256 motion axes, depending on the system configuration.
Flexible Programming Environment
The controller is configured using Rockwell Automation Studio 5000 Logix Designer software. It supports multiple programming languages for developing and maintaining industrial control applications.
USB Programming Interface
An integrated USB port provides a local connection for programming, configuration, and maintenance.
Compact Chassis-Based Design
The 1756-L84E occupies one ControlLogix chassis slot and can be installed in a compatible 1756 chassis, allowing integration with other ControlLogix modules.
Technical FAQs
1. What is the main function of the Allen-Bradley 1756-L84E?
The 1756-L84E is a programmable automation controller used to execute industrial control logic, coordinate I/O devices, manage communications, and control connected automation equipment.
2. How much memory does the 1756-L84E provide?
It provides 20 MB of standard user memory for controller applications and data.
3. Is the 1756-L84E a GuardLogix safety controller?
No. The 1756-L84E belongs to the ControlLogix 5580 standard controller family. The corresponding GuardLogix safety controller is the 1756-L84ES, which includes dedicated safety functionality and safety memory.
4. Which communication interfaces are available?
The controller provides one embedded Gigabit EtherNet/IP port and one USB programming port. It also supports communication with compatible ControlLogix network modules and devices.
5. Which programming software is used with the 1756-L84E?
The controller is programmed and configured using Rockwell Automation Studio 5000 Logix Designer. The required software version should be compatible with the controller firmware.
6. How many EtherNet/IP devices can the controller support?
The 1756-L84E supports up to 250 EtherNet/IP devices. Actual network performance depends on device configuration, communication traffic, and system architecture.
7. Does the 1756-L84E support integrated motion control?
Yes. It supports integrated motion over EtherNet/IP and can support up to 256 motion axes with compatible drives and system configurations.
8. Which chassis can accommodate the 1756-L84E?
It is designed for compatible ControlLogix 1756 chassis, including 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 families. Verify chassis series and system compatibility before installation.
9. What should be checked if the controller fails to communicate with other devices?
Check the Ethernet cable, link status, IP configuration, network topology, device settings, and controller communication diagnostics. Also verify that the connected devices use compatible communication protocols.
10. Can the 1756-L84E directly replace a 1756-L84ES?
No. The 1756-L84E is a standard ControlLogix controller, while the 1756-L84ES is a GuardLogix safety controller. They have different safety capabilities and application requirements, so they should not be treated as direct substitutes.
