Allen-Bradley 1756-L82E ControlLogix 5580 Controller
5 MB User Memory
Up to 175 EtherNet/IP Nodes
1756-L82E datasheet
Place of Origin:
USA
Brand Name:
Allenbradley
5 MB User Memory
,Up to 175 EtherNet/IP Nodes
,1756-L82E datasheet
1756-L82E ControlLogix 5580 Controller
Product Overview
The Allen-Bradley 1756-L82E is a standard ControlLogix 5580 programmable automation controller. It provides 5 MB of user memory, an embedded EtherNet/IP port with Gigabit Ethernet capability, a USB programming port and a four-character alphanumeric display. It is designed for chassis-based ControlLogix system architectures.
*175 EtherNet/IP nodes applies with Studio 5000 Logix Designer version 30.00.00 or later. Earlier version 29 configurations specify 80 nodes.
Technical Specifications
Expand / Collapse Technical Data
| Catalog Number | 1756-L82E |
| Product Family | ControlLogix 5580 |
| Product Type | Programmable Automation Controller |
| Controller Type | Standard Controller |
| Controller Tasks | 32 tasks, including continuous, periodic and event tasks |
| Programs per Task | 1,000 |
| Local Programming Port | 1 USB port |
| USB Communication | USB 2.0, full speed, 12 Mbps |
| USB Port Use | Programming, configuration, firmware updates and online edits |
| Embedded Ethernet | 1 EtherNet/IP port |
| Ethernet Link Speed | 10 / 100 / 1000 Mbps |
| EtherNet/IP Nodes | 80 nodes with Studio 5000 version 29.00.02; 175 nodes with version 30.00.00 or later |
| Nonvolatile Memory | 4 GB Secure Digital card (1784-SD4), preinstalled |
| Energy Storage | Embedded in controller, non-removable |
| Power Cycles | 80,000 |
| Current Draw at 1.2 V DC | 5.0 mA |
| Current Draw at 5.1 V DC | 1.20 A |
| Power Dissipation | 6.2 W |
| Thermal Dissipation | 21.2 BTU/hr |
| Isolation Voltage | 50 V continuous, basic insulation type |
| Approximate Weight | 0.394 kg |
| Slot Width | 1 slot |
| Module Location | Chassis-based, any slot |
| Chassis Requirement | Supported ControlLogix Series B or Series C chassis |
| Enclosure Type Rating | None — open-style |
| Operating Temperature | 0 to 50 °C with Series B chassis; 0 to 60 °C with Series C chassis |
| Lifecycle Status | Active — Rockwell Automation product listing |
| UPC | 887172361333 |
Control & Communication Features
Controller Task Structure
Supports up to 32 controller tasks, including continuous, periodic and event task types, with up to 1,000 programs per task.
EtherNet/IP Communication
The embedded Ethernet interface supports 10/100/1000 Mbps link speeds. The supported node count depends on the Studio 5000 Logix Designer version.
Integrated Motion
Supports Integrated Motion on the EtherNet/IP network, with up to 256 motion axes listed on the product specification.
Local Programming
The USB 2.0 port supports local programming, configuration, firmware updates and online edits. Rockwell specifies temporary local use rather than permanent connection.
System Installation & Compatibility
The 1756-L82E is installed in a compatible ControlLogix chassis and requires a suitable ControlLogix power supply. Rockwell's installation instructions list Series B and Series C chassis families and supported power-supply catalog numbers.
The 1756-L82E is the standard controller variant. Models with EK, NSE, XT, EP or ES suffixes are distinct product variants and should not be treated as identical replacements.
Application & Failure Scenarios
Typical System Role
Used as the controller in ControlLogix 5580 automation platforms for machine control, coordinated production equipment, distributed I/O and EtherNet/IP-connected systems.
Why Maintenance Teams Search
Common sourcing situations include controller hardware faults, failure to enter the expected operating state, communication interruptions, damaged ports or the need to restore a machine with the same catalog number.
Potential Downtime Impact
A controller fault can interrupt machine sequencing, I/O coordination and connected equipment operation. Recovery may require a compatible controller, project backup, firmware alignment and system validation.
Frequently Asked Questions
1. How much user memory does the 1756-L82E provide?
The controller has 5 MB of standard user memory.
2. How many EtherNet/IP nodes can it support?
Rockwell specifies 80 nodes with Studio 5000 Logix Designer version 29.00.02 and 175 nodes with version 30.00.00 or later.
3. Does the controller include a memory card?
Rockwell's installation instructions list a 4 GB Secure Digital card, catalog number 1784-SD4, preinstalled in standard ControlLogix controllers.
4. What chassis and power supply are required?
The controller requires a compatible ControlLogix chassis and power supply. Check the chassis series and the supported power-supply catalog numbers in the installation instructions.
5. Can a 1756-L82EK or 1756-L82E-NSE replace this controller directly?
Do not assume direct interchangeability from the shared L82 designation. These are separately identified variants; verify the system design, environmental requirements, firmware and project configuration before selecting a replacement.
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- Inspection: Product condition and applicable checks before dispatch.
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- Returns & DOA: Report transit damage or arrival defects promptly with photos and order details; assessment follows agreed return terms.
- Warranty: 12-month warranty, subject to quotation and agreed supply terms.
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