Description
The Allen-Bradley 1756-L81EP is a high-performance ControlLogix 5580E process controller with 3 MB user memory, integrated gigabit Ethernet, and USB programming port.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Allen-Bradley
|
| Category |
Controls & Indicators |
| Part Number |
1756-L81EP
|
| Subcategory |
Control |
|
Product Type
|
Controller |
|
Compatibility
|
ControlLogix 5570/5560 Controllers |
| Controller Tasks |
32 |
| Programs Per Task |
1000 |
| Communication |
Monitoring, Controlling |
| Application |
Standard Contacts |
| Installed On |
ControlLogix I/O Chassis |
| Current Draw |
1.2 Amps at 5.1 Volts |
| Weight |
1.38 lbs |
Information About 1756-L81EP
The Allen-Bradley 1756-L81EP is a high-performance ControlLogix 5580E process controller featuring 3 MB of user memory, integrated gigabit Ethernet, and advanced motion and I/O handling. Designed for demanding industrial environments, it supports secure, high-speed control and communication in modern automation systems.
Key Features:
- Controller Type: ControlLogix 5580E Process Controller
- User Memory: 3 MB RAM
- Integrated Ports: 1 × Gigabit Ethernet, 1 × USB 2.0 (for programming only)
- Network Capacity: Supports up to 100 EtherNet/IP nodes
- I/O Support: Up to 128,000 digital I/O and 4,000 analog I/O points
- Motion Support: Integrated motion over EtherNet/IP, up to 256 axes
- Task Capacity: Supports up to 32 tasks and ~1,000 programs per task
- Display: 4-character alphanumeric display for diagnostics and alerts
- Security: Digitally signed firmware, role-based access control (ISO 27001 aligned)
- Power Requirements: 1.20 A at 5.1 V DC; 6.2 W power dissipation
- Environmental Ratings: 0–60 °C operating; –40–85 °C storage; 5–95% RH non-condensing
- Shock & Vibration: Rated to IEC standards (30 g shock, industrial vibration tolerance)
- Mounting: Occupies one slot in a standard ControlLogix chassis
- Lifecycle Status: Active product in the ControlLogix 5580 family
The 1756-L81EP is ideal for high-speed, secure control applications across process, motion, and hybrid automation environments. It offers enhanced capacity, integrated diagnostics, and strong cybersecurity measures. Its compact design, extended I/O and motion support, and network scalability make it a powerful solution for modern smart manufacturing systems.
