Technical Specifications Breakdown
Key parameters for the 1756-L82EP are listed below for quick reference:
| Feature | Specification |
|---|---|
| Brand | Allen-Bradley / Rockwell Automation |
| Series | ControlLogix |
| Part Number | 1756-L82EP |
| Product Type | Controller module |
| Compatibility | ControlLogix 5580 devices |
| Ethernet Speeds | 10/100/1000 Mbps |
| USB Speed | 12 Mbps |
| User Memory | 5 Megabytes |
| Maximum Total I/O | 128,000 |
| Maximum Digital I/O | 128,000 |
| Maximum Analog I/O | 4000 |
| Power Dissipation | 6.2 Watts |
| Thermal Dissipation | 21.2 BTU per hour |
Industry Applications
Discrete Manufacturing Lines
The integrated motion over Ethernet reduces wiring complexity and improves synchronization.
Process Control with Redundancy
In continuous processes like chemical or pharmaceutical production, the module's 5 MB user memory and 32-task capability enable complex batch sequences and safety interlocks. The controller's event-driven tasks respond instantly to process triggers.
Upgrade from Legacy Systems
Replacing older ControlLogix 5560 or 5570 controllers with this module provides a direct path to gigabit Ethernet speeds (10/100/1000 Mbps) and higher I/O capacity without redesigning the control architecture.

Installation & Setup Guidance
Mount the module in a single slot of a ControlLogix chassis. Ensure the chassis is powered down before insertion. Connect the Ethernet port to the plant network using a shielded CAT5e or higher cable. The USB port (Type B USB 2.0 full speed at 12 Mbps) is intended for local programming and firmware updates. Use RSLogix 5000 or Studio 5000 software to configure the controller and assign I/O modules.
Maintenance & Reliability
The module dissipates 6.2 Watts (21.2 BTU per hour), so ensure adequate airflow within the enclosure. Periodically inspect the Ethernet and USB connections for dust or corrosion. Verify that the firmware is current to maintain compatibility with newer I/O modules and network devices.
ControlLogix 5580 Controller
The Allen-Bradley 1756-L82EP is a controller module from the ControlLogix 5580 series, designed for demanding industrial automation applications. This module provides a robust platform for complex control tasks, supporting up to 32 tasks with 1000 programs per task and event tasks for all event triggers. Its integrated motion over Ethernet simplifies system architecture while maintaining precise motion control.

Compatibility & Integration
Communication options include ControlNet, Remote I/O, DeviceNet, Data Highway Plus, and SynchLink networks. The module supports structured text, sequential function chart, function block diagram, and ladder diagram programming languages.
Selection Guide & Purchasing Advice
When selecting a controller, consider the required I/O count, memory, and network topology. AutoDCSTech stocks this module and can advise on compatible chassis, power supplies, and I/O modules.
Troubleshooting & Common Issues
If the module fails to communicate, check the Ethernet cable and switch port status. Verify that the IP address is correctly configured and not duplicated on the network. If the controller does not power up, confirm that the chassis backplane is supplying proper voltage and that the module is fully seated in the slot. For persistent issues, consult the Rockwell Automation knowledgebase or contact AutoDCSTech support.
Availability & Condition at AutoDCSTech
| Part Number | 1756-L82EP |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
Datasheet & Downloads
Specification sheet for 1756-L82EP. For lead time, condition and price, contact our team.
