1756-L84E Programmable Controller Allen-Bradley ControlLogix
Manufacturer: Allen-Bradley
Product No.: 1756-L84E
Condition： In stock
Product Type: Controller Module
Product Origin: USA
Payment: T/T, Western Union
Weight: 420g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The 1756-L84E represents a high-capacity ControlLogix Controller engineered by Allen-Bradley within the ControlLogix Series. This advanced Programmable Automation Controller delivers 20 MB of user memory and an embedded gigabit Ethernet interface for demanding multi-axis and large-scale industrial architectures.
Technical Specifications Matrix
| Brand | Allen-Bradley (Rockwell Automation) |
| Model / Catalog Number | 1756-L84E |
| Product Series & Type | ControlLogix 5580 / PAC Controller Module |
| User Memory Capacity | 20 Mega-Bytes user program storage |
| Non-Volatile Storage Support | Pre-installed 2 GB Secure Digital (SD) card (1784-SD2) |
| Maximum I/O Points | 128,000 Digital I/O and 4,000 Analog I/O points |
| Backplane Current Draw | 5.0 mA at 1.2 VDC and 1.2 mA at 5.1 VDC |
| Power & Thermal Dissipation | 6.2 Watts power output / 21.2 BTU per hour thermal output |
| Communication Interfaces | 1 x 10/100/1000 Mbps embedded Ethernet port; 1 x USB 2.0 port |
| Operating Temperature Range | 0°C to 60°C (32°F to 140°F) with T4 temperature code |
Configuration and Architecture Breakdown
Installation Guide
Insert the 1756-L84E module firmly into any single-width slot of a powered 1756 ControlLogix chassis. Secure the upper and lower locking latches completely. Connect your plant network to the embedded gigabit Ethernet port and verify normal diagnostic execution through Studio 5000 Logix Designer.
Commissioning and Maintenance Convenience
The battery-free energy storage module eliminates periodic lithium battery disposal procedures and prevents sudden RAM loss during extended unpowered storage. Unlimited task capacity configured via local event triggers simplifies complex program sequencing during plant commissioning.
Compatibility Notes
This controller requires Studio 5000 Logix Designer Application Version 3.0 or higher. It interfaces cleanly with motion control drives over EtherNet/IP and supports legacy bridging modules for ControlNet, DeviceNet, and Data Highway Plus networks.
Certifications and Warranty Terms
Manufactured to rigorous industrial and IEC environmental standards. Backed by a full 12-month factory warranty covering component defects and workmanship flaws.
Shipping and Logistics
Expedited global fulfillment is managed through premier carriers including FedEx, UPS, and DHL. Stocked automation components ship within 24 to 48 hours to prevent critical site delays.
Application Scenarios and Diagnostics
Deploys effectively in large automotive production lines, municipal water treatment facilities, high-speed packaging complexes, and synchronized motion control loops. Advanced internal diagnostic routines monitor port isolation voltage boundaries, backplane communication integrity, and thermal thresholds continuously.
Global PLC Spare HUB's Insight
Our automation engineering team deployed the 1756-L84E on a high-speed bottling line coordinating 80 synchronized servo axes over EtherNet/IP. The built-in 1 GB Ethernet interface eliminated the need for separate communication modules, drastically reducing chassis slot utilization while maintaining zero packet jitter during heavy data logging.
Frequently Asked Questions
Q: What specific advantage does the battery-free energy storage module provide over older controllers?
A: It relies on solid-state capacitors to back up volatile RAM during power outages, eliminating periodic battery maintenance and environmental disposal compliance.
Q: How many communication nodes can the onboard gigabit Ethernet port handle simultaneously?
A: The embedded 1 GB Ethernet port supports a maximum threshold of 250 active communication nodes on the EtherNet/IP network.
Q: What precautions should be taken when replacing the 1784-SD2 memory card?
A: Always ensure the controller is powered down or follow proper software-initiated card dismount procedures to prevent non-volatile file corruption.
Q: Can this controller be installed in any slot of a 1756 chassis?
A: Yes, it fits into any standard single-width slot, though placing controller modules in left-side slots is standard practice for optimal backplane master coordination.
Q: What isolation standards protect the communication ports from electrical transients?
A: The unit provides 50V continuous basic insulation isolation tested at 1000V AC for 1 minute between the USB, Ethernet, and backplane interfaces.
Tags
Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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