Description
Allen-Bradley 1756-L81E ControlLogix Processor
Modern automation solution with the Allen-Bradley 1756-L81E controller. This efficient module features 3 MB user memory and supports up to 60 EtherNet/IP devices. With built-in Gigabit Ethernet and USB ports, this 1756-L81E controller provides reliable performance for various industrial applications. Perfect for system upgrades and new installations.
Complete Technical Specifications
- Brand: Allen-Bradley / Rockwell Automation
- Model: 1756-L81E Controller
- Series: ControlLogix 5580
- User Memory: 3 MB
- Non-Volatile Storage: 2 GB SD card (included)
- EtherNet/IP Nodes: 60 maximum
- Digital I/O Capacity: 128,000 points
- Analog I/O Capacity: 4,000 points
- Ethernet Speed: 10/100/1000 Mbps
- USB Speed: 12 Mbps (USB 2.0)
- Power Dissipation: 6.2 Watts
- Current Draw: 1.2A @ 5.1V DC, 5 mA @ 1.2V DC
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Isolation Voltage: 50V continuous
- Certifications: IECx, CSA, c-UL-us
- Chassis Slots: 1 slot required
Download Complete Documentation
- Full installation guide for 1756-L81E controller setup
- Migration instructions from PLC5/SLC500 systems
- Network configuration for multiple protocols
- Programming examples and best practices
Download the full product manual here.
Frequently Asked Questions
- Q1: What makes this controller ideal for system migration?
A1: The 1756-L81E is designed as a modern replacement for legacy PLC5 and SLC500 systems, offering enhanced features while supporting migration tools. - Q2: Does this controller require a battery?
A2: No, it uses an environmentally friendly energy storage solution that eliminates battery replacement needs. - Q3: What chassis are compatible with this controller?
A3: It works with Series B and C chassis including 1756-A4, A7, A10, A13, A17 and their K-series versions. - Q4: What power supplies can I use?
A4: Compatible with standard supplies (1756-PA50, PA72, PA75, PB50, PB72, PB75, PH75, PC75) and redundant supplies (1756-PA75R, PB75R, PSCA2). - Q5: What safety certifications does this controller have?
A5: It is IECx, CSA, and c-UL-us certified for use in various international markets.
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