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In Stock
Ships by Saturday, August 29
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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 1756-L81EP
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Product Model1756-L81EP
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Spare ModelControlLogix 5580 Process Controller
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Product ParametersPlant-wide process controller
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Tariff Code85371091
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size13.96 x 3.455 x 14.52 cm
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ManufacturerAllen-Bradley
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Weight0.394 kg
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Product TypeControlLogix 5580 process controller
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User Memory3 MB
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EtherNet/IP Nodes100 maximum
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Controller Tasks32
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Programs per Task1000
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Ethernet Performance10/100/1000 Mbps
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Built-in PortsUSB 2.0 and embedded Ethernet
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Backplane Current1200 mA at 5.1 V DC
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Isolation Voltage50 V continuous
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Conformal CoatingYes
Description
Allen-Bradley 1756-L81EP is a ControlLogix 5580 process controller with 3 MB user memory, an embedded 1 Gb EtherNet/IP port and support for up to 100 EtherNet/IP nodes. It is configured for PlantPAx process applications with dedicated process instructions and a default process tasking model.
The controller supports redundant process architectures, integrated motion, 32 tasks and up to 1000 programs per task. Confirm the chassis series, firmware, PlantPAx release, network design, security policy and Studio 5000 project before installation or replacement.
The controller supports redundant process architectures, integrated motion, 32 tasks and up to 1000 programs per task. Confirm the chassis series, firmware, PlantPAx release, network design, security policy and Studio 5000 project before installation or replacement.
Information
Overview
Manuals
Product Applications
Compatibility
Lifecycle & Replacement
Features:
- ControlLogix 5580 process controller with 3 MB user memory
- Embedded 10/100/1000 Mbps EtherNet/IP communication port
- Supports up to 100 EtherNet/IP nodes
- Integrated motion and redundant process control capabilities
- Conformally coated open-style controller for PlantPAx applications
The controller supports 32 tasks and up to 1000 programs per task, while documented redundant configurations require compatible chassis, redundancy modules, firmware, and Studio 5000 software. Installation and migration planning must confirm system performance, network loading, environmental limits, and security requirements.
1756-L81EP Allen-Bradley: Verify the chassis series, firmware revision, PlantPAx release, EtherNet/IP topology, redundancy design, power budget, and Studio 5000 project before installation or replacement.
Allen-Bradley 1756-L81EP ControlLogix 5580 Process Controller Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer sources. Accessories, manuals, cables, certificates and other items are not included unless listed in the stock item description.
- Plant-wide process control and coordination
- PID loop and process control strategy execution
- Redundant process controller architectures
- Logix alarm management for process operations
- Process data delivery to supervisory and data servers
1756-L81EP is applied in PlantPAx architectures that coordinate process control, alarm handling, controller redundancy, and data exchange with supervisory systems. Application engineering must confirm the PlantPAx system release, control strategy loading, network architecture, server integration, chassis configuration, and cybersecurity requirements.
1756-L81EP is compatible with documented Allen-Bradley ControlLogix 5580 process-control architectures using suitable 1756 chassis, power supplies, EtherNet/IP networks, and Studio 5000 firmware and software. Redundant operation requires the approved redundancy modules, matching controller and chassis configuration, and supported PlantPAx system release. Confirm all firmware, chassis-series, network, motion, and environmental requirements before commissioning.
Rockwell Automation lists 1756-L81EP as End of Life with a discontinued date of December 31, 2026, and identifies 1756-L81EPXT as the direct replacement. Before migration, record the complete controller catalog number, firmware, chassis series, PlantPAx release, redundancy configuration, EtherNet/IP topology, motion configuration, memory use, security settings, and Studio 5000 project. Verify that the replacement environmental rating and system compatibility meet the installed application.
Alternative Names
1756-L81EP
ControlLogix 5580 Process Controller
PlantPAx 3 MB Process Controller
Technical notes
Verify the 1756-L81EP controller catalog number, chassis series, firmware revision, PlantPAx release, Ethernet topology, redundancy design and Studio 5000 project before installation or replacement.
FAQs
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What is the 1756-L81EP?
+It is a ControlLogix 5580 process controller designed for PlantPAx process control applications. -
How much user memory does the 1756-L81EP provide?
+The controller provides 3 MB of user memory. -
How many EtherNet/IP nodes does it support?
+The 1756-L81EP supports up to 100 EtherNet/IP nodes through its embedded Ethernet interface. -
Does the 1756-L81EP support redundant control systems?
+Yes. Controller redundancy is supported when the documented chassis, firmware, redundancy modules and Studio 5000 requirements are satisfied. -
What is the direct replacement for the 1756-L81EP?
+Rockwell Automation identifies 1756-L81EPXT as the direct replacement; compatibility and environmental requirements must be reviewed before migration.
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