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Allen Bradley ControlLogix 1756-L84ES

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1756-L84ES

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The 1756-L84ES, part of Allen Bradley's ControlLogix series, is a robust controller designed for operational excellence. It features extensive communication capabilities, including Safety Communication over Ethernet/IP, ControlNet, and DevicNet, while managing up to 250 Ethernet/IP nodes efficiently.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1756-L84ES

ManufacturerAllen Bradley
Product TypeController
Product LineControlLogix
Part Number1756-L84ES
UPC889508112312
Weight2.81 lbs (1.28 kg)
Safety Communication OptionsEthernet/IP, ControlNet, and DeviceNet (Standard and Safety)
Maximum Number of Ethernet/IP Nodes250 Nodes
Controller Redundancy OptionNot Supported
Compatible Safety Partner Devices1756-L8SP and 1756-L8SPK
Maximum Number of Standard Tasks31 Standard Tasks
Maximum Number of Safety Tasks1 Safety Task
Maximum Number of Programs per Task1000 Programs per Task
Maximum Number of Local I/O Event TriggersNo Limit
Number of Built-in USB Ports1 USB Port
Number of Built-In Ethernet Ports1 Embedded Ethernet Port
Full USB Port Speed12 Mbps
User Memory20 MB
Safety Memory6 MB
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The Allen Bradley 1756-L84ES is an advanced controller within the ControlLogix series. It is specifically engineered to facilitate extensive communication options, particularly supporting Ethernet/IP, ControlNet, and DeviceNet, both for standard and safety usage. With the capacity to manage up to 250 nodes within an Ethernet/IP network, this controller is designed for scalability in complex automation environments.

This model does not include support for redundancy, which could be a consideration depending on system architecture requirements. It is compatible with dedicated safety partner devices, namely the 1756-L8SP and 1756-L8SPK, ensuring safety standards are met in critical applications.

The 1756-L84ES controller is efficient in task organization, supporting a maximum of 31 standard tasks and a single safety task to maintain streamlined operations. Each task is able to handle up to 1000 individual programs, providing significant implementation flexibility. There is also no restriction on the number of local I/O event triggers, allowing for maximum input/output operation without limitation.

For user interaction and configuration, the controller is equipped with one built-in USB port that operates at a full speed of 12 Mbps. Additionally, there is an embedded Ethernet port for networking purposes. User memory is set at 20 MB, with an additional 6 MB dedicated explicitly for safety protocols. This robust setup makes the 1756-L84ES a solid choice for various applications within industrial automation.