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Allen Bradley ControlLogix 1756-L81E-NSE

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1756-L81E-NSE

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The 1756-L81E-NSE is a No Stored Energy (NSE) Controller from Allen Bradley's ControlLogix series. This unit provides a robust processing capability with support for 32 controller tasks and up to 1000 programs per task, catering to various industrial applications.

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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-L81E-NSE

ManufacturerAllen Bradley
Product TypeNo Stored Energy (NSE) Controller
Product LineControlLogix
Part Number1756-L81E-NSE
Weight2.00 lbs (0.91 kg)
UPC194033096021
Number of Controller Tasks32 tasks and 1000 programs/task
Standard Memory3 MB
Nonvolatile Memory Storage4 GB Secure Digital (SD) card
Energy Storage ModuleEmbedded in controller, non-removable
Current Draw @ 1.2V DC5 mA
Current Draw @ 5.1V DC1.20 A
Power Dissipation6.2 Watts
Thermal Dissipation21.2 BTU/hr
Enclosure Type RatingNone (open-style)
Built-in Communication Ports1-port USB
USB Port CommunicationUSB 2.0
Ethernet Performance10/100/1000 Mbps
EtherNet/IP Nodes Supported Max100 nodes
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The Allen Bradley part number 1756-L81E-NSE is recognized as a No Stored Energy (NSE) Controller, designed for performance and flexibility. With the capability to handle 32 distinct controller tasks, it allows for executing up to 1000 programs within each task. This controller is equipped with a standard memory size of 3 MB, facilitating smooth operations in various control applications.

For data retention, the 1756-L81E-NSE incorporates a 4 GB Secure Digital (SD) card for nonvolatile memory storage. This feature ensures critical data is preserved even during power outages. The energy storage module integrated into the controller is non-removable, providing consistent energy management.

In terms of power requirements, the controller has a current draw of 5 mA when operating at 1.2V DC and 1.20 A at 5.1V DC. The power dissipation level stands at 6.2 Watts, with thermal dissipation recorded at 21.2 BTU/hr. The open-style enclosure of this unit means that it lacks a specific rating, offering flexibility in mounting and integrating into existing systems.

Communication capabilities are another significant aspect of the 1756-L81E-NSE. It is equipped with a USB 2.0 port for convenient connections and software updates. Ethernet performance supports high-speed connectivity at rates of 10/100/1000 Mbps. This model also accommodates a maximum of 100 EtherNet/IP nodes, enhancing its usability in networked applications.