Allen-Bradley 1756-L81EP ControlLogix 5580E Process Controller
Allen-Bradley · PLCs & Industrial Controllers
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.
Brand: Allen-Bradley · Category: PLCs & Industrial Controllers
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
Specifications
| Manufacturer part number | 1756-L81EP |
|---|---|
| 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 |
| Product type | ControlLogix 5580E Process Controller |
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