Product Details
Overview
The Allen-Bradley 1756-L84E is a high-performance ControlLogix 5580 controller module designed for advanced industrial automation systems. It delivers extensive digital and analog I/O capacity, reliable communication interfaces, and robust operation for open-style rack installations.
Technical Specifications
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Model / Part Number: 1756-L84E
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Brand: Allen-Bradley
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Product Type: ControlLogix 5580 Controller Module
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Module Type: Controller
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User Memory: 20 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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Maximum I/O: 128,000 points
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Communication Interfaces: 1× Ethernet, 1× USB
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Power Supply Current Draw: 5.1 V DC: 1.20 mA, 1.2 V DC: 5.0 mA
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Power Dissipation: 6.2 Watts
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Thermal Dissipation: 21.2 BTU/hour
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Isolation Voltage: 50 Volts continuous
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Enclosure Type: None (open-style module)
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Compatible Chassis: 1756-A4, A4K, A7, A7K, A10, A10K, A13, A13K, A17, A17K Series B/C
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Weight: 0.94 lbs (0.43 kg)
Application Scenarios
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Mid-to-large scale PLC control systems requiring high-density digital and analog I/O
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Integration with ControlLogix 5580 I/O networks for process automation
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Open-style rack configurations in industrial control cabinets
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Expansion of existing ControlLogix systems for additional I/O capacity
Comparison with Similar Models
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1756-L84E vs 1756-L83E: L84E offers higher memory and enhanced I/O handling, suitable for more demanding applications.
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ControlLogix 5580 Series: L84E is ideal for systems that require compact modules with high digital and analog I/O density.
FAQs
Q1: What communication options are available on the 1756-L84E?
It includes one Ethernet port for network communication and one USB port for programming and configuration.
Q2: Which chassis are compatible with this controller?
It is compatible with 1756-A4, A4K, A7, A7K, A10, A10K, A13, A13K, A17, and A17K Series B/C chassis.
Q3: How much I/O can this module manage?
The controller supports up to 128,000 digital points and 4,000 analog points.
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
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.