Product Details
Overview
The Allen-Bradley 1756-L81E is a high-performance ControlLogix 5580 controller engineered for demanding industrial automation applications. Designed for large-scale PLC systems, it delivers reliable performance with extensive I/O capacity and flexible communication options including Ethernet and USB. This open-style controller is compatible with multiple ControlLogix chassis and supports both standard and redundant power supplies.
Key Features
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Controller Type: ControlLogix 5580
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User Memory: 3 MB
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Maximum Digital I/O: 128,000 points
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Maximum Analog I/O: 4,000 points
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Communication Interfaces: 1 Ethernet, 1 USB
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Isolation Voltage: 50 V continuous
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Power Dissipation: 6.2 W
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Thermal Dissipation: 21.2 BTU/hr
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Current Draw: 1.2 mA (5.1 V), 5 mA (1.2 V DC)
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Enclosure: Open-style (requires chassis mounting)
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Compatible Chassis: 1756-A4, A4K, A7, A7K, A10, A10K, A13, A13K, A17, A17K Series B/C
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Power Supply Compatibility: Standard 1756-PA50, PA72, PA75 series; Redundant 1756-PA75R, PB75R, PSCA2 series
Technical Specifications
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Manufacturer: Allen-Bradley
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Part Number: 1756-L81E
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Category: Programmable Logic Controller (PLC)
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Application Memory: Large-scale control programs
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Input/Output Capacity: Up to 128,000 digital I/O and 4,000 analog I/O points
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Operating Voltage: Matches supported ControlLogix chassis and power supplies
Application Scenarios
The 1756-L81E is suited for:
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High-speed manufacturing process control
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Integration into complex PLC networks
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Large-scale data acquisition and monitoring systems
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Redundant systems requiring reliable uptime
FAQs
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Q: What is the maximum I/O supported? Up to 128,000 digital and 4,000 analog points
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Q: Which communication ports are available? One Ethernet port and one USB port
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Q: Which chassis can this controller be mounted in? Compatible with 1756-A4, A7, A10, A13, and A17 series
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Q: Are redundant power supplies supported? Yes, including 1756-PA75R, PB75R, and PSCA2 series
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Selecting the right controller is a fundamental decision in industrial automation. While the lines between Programmable Logic Controllers (PLC) and Programmable Automation Controllers (PAC) often blur, understanding their core architectural differences is essential for system reliability. Both controllers serve as the brain of control systems, yet their specific capabilities dictate their suitability for various factory automation tasks.
Transforming Textile Manufacturing: The Strategic Integration of Industrial Automation and AI
The textile industry stands at a critical technological crossroads. Legacy operations must now embrace digital transformation to remain competitive in a global market. By integrating advanced industrial automation—ranging from PLC-controlled machinery to sophisticated AI-driven analytics—manufacturers can significantly boost productivity, minimize material waste, and elevate overall product quality.
Navigating Industrial Communication Protocols: A Technical Guide for Modern PLCs
In the realm of industrial automation, the Programmable Logic Controller (PLC) serves as the brain of the factory floor. However, its true power is unlocked through robust communication protocols. These digital pathways ensure seamless data exchange between controllers, sensors, and enterprise-level management systems.