1756-L84E | Allen-Bradley | ControlLogix 5580 Programmable Automation Controller

Product Overview

The Allen-Bradley 1756-L84E functions as a high-capacity processing powerhouse within the ControlLogix 5580 family. Engineered for data-intensive automation, this controller features 20 MB of user memory to manage expansive tag databases and complex instruction sets. It incorporates an onboard 1-Gigabit Ethernet port, allowing direct, high-speed communication with factory-floor devices and enterprise-level software. We supply this unit in 100% Brand New and Original condition, ensuring your most demanding control architectures benefit from the latest hardware revisions and maximum processing throughput.

Technical Specifications

Engineering Advantages

The 1756-L84E eliminates processing bottlenecks and simplifies network topology through its advanced 5580 architecture:

• Massive Memory Capacity: The 20 MB user memory accommodates heavy code loads, extensive alarming, and complex motion profiles. This eliminates the need for multi-controller synchronization in large-scale applications, keeping your entire process within a single, high-speed execution environment.

• Integrated Gigabit Ethernet: The onboard 1Gbps Ethernet port provides the bandwidth necessary for high-node-count I/O networks. This direct port removes the requirement for additional communication bridge modules in many configurations, freeing up chassis slots and reducing hardware overhead.

• Superior Logic Performance: The 5580 engine executes logic significantly faster than legacy 5570 processors. This reduced scan time improves responsiveness in high-speed discrete manufacturing and enhances PID loop stability in complex process control.

• Robust Chassis and Power Flexibility: This controller integrates seamlessly with both standard (1756-PA72) and redundant (1756-PA75R) power supply configurations. It supports the full range of 1756-A Series B and C chassis, offering a versatile upgrade path for existing ControlLogix systems.

• Battery-Free Data Protection: The module utilizes internal energy storage to save the project to non-volatile memory during power loss. This design eliminates the maintenance burden and environmental risks associated with traditional lithium batteries.

FAQs

• How do I confirm the "Brand New" status of this 1756-L84E?

  We guarantee every 1756-L84E arrives in its original Allen-Bradley factory box with intact security seals. Every processor carries a unique UPC (887172361364) and serial number for full manufacturer traceability, confirming zero prior field runtime or installation.

• What software version does the 1756-L84E require?

  The 5580 series controllers require Studio 5000 Logix Designer software. You must use version 28 or higher to access the 1756-L84E's advanced Gigabit Ethernet features and expanded memory capacity.

• Does this controller support redundant configurations?

  Yes. The 1756-L84E supports full controller redundancy when used with a 1756-RM2 redundancy module and compatible firmware. This ensures bumpless switchover and continuous process operation in critical high-availability applications.

• Can I use the USB port for continuous data collection?

  The integrated USB 2.0 port serves primarily as a local maintenance port for programming, configuration, and on-line edits. For continuous data logging or HMI communication, you should utilize the high-speed 1Gbps Ethernet interface to ensure network stability.