Allen-Bradley 1756-L81E ControlLogix Processor – Compact 3MB Memory with Dual Ethernet/USB
Quick Setup Guide
- Triple-speed 1GB Ethernet (10/100/1000 Mbps)
- Handles 128,000 I/O points for medium systems
- No battery needed – energy storage technology
- Download full manual for installation help
Top Features
- 3MB user memory + 2GB SD card support
- Dual ports: Ethernet + USB 2.0 (12Mbps)
- Runs 32 tasks with 1,000 programs each
- Works from 0°C to 60°C
- Clear 4-character status display
Technical Specifications
| Model/Series: | 1756-L81E ControlLogix 5580 |
| Power Consumption: | 1.2A @5.1V, 5mA @1.2V |
| Heat Output: | 21.2 BTU/hour |
| Network Capacity: | 60 EtherNet/IP devices |
| Vibration Rating: | 2g (10-500Hz) |
| Certifications: | IECx, CSA, c-UL-us |
| Chassis Options: | 1756-A4 to A17K (Series B/C) |
5 Expert Questions Answered
- Can it replace PLC5/SLC500 systems?
Yes – ideal migration platform for legacy systems. - What SD cards work?
1784-SD2 cards (2GB non-volatile memory). - Is Studio 5000 required?
Yes – fully supported in all versions. - Can it do redundant systems?
Yes – supports high-availability configurations. - What safety certifications?
ATEX T4, IEC 61000-6-4 compliant.
Package Details
- Includes: 1756-L81E processor unit
- 12-month coverage
- Express shipping: FedEx, UPS, DHL available
Meta Description: Allen-Bradley 1756-L81E ControlLogix processor with 3MB memory, 1GB Ethernet, and 128K I/O. Supports 60 EtherNet/IP devices. No battery needed. 12-month coverage.
%20Handles%20128,000%20I/O%20points%20for%20medium%20systems%20No%20battery%20needed%20–%20energy%20storage%20technology%20Download%20full%20manual%20for%20installation%20help%20Top%20Features%203MB%20user%20memory%20+%202GB%20SD%20card%20support%20Dual%20ports:%20Ethernet%20+%20USB%202.0%20%5B…%5D&media=https://www.oiltechcontrols.com/wp-content/uploads/2025/08/1756-L81E_1.jpg){kind=link}
Reviews
There are no reviews yet.