Product Details
Product Overview
The 1756-L85EK represents the pinnacle of the ControlLogix 5580 controller family, designed for large-scale, high-performance automation tasks. It provides a massive 40 MB of user memory and high-speed communication capabilities to manage complex motion control and intensive data processing. This specific "K" version features conformal coating, providing an extra layer of protection against harsh industrial environments. We supply this unit as 100% Brand New original hardware, ensuring your facility benefits from maximum processing power and long-term environmental resilience.
Technical Specifications
The 1756-L85EK utilizes the high-performance ControlLogix 5580 engine to deliver superior execution speeds:
| Parameter | Specification |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Controller Series | ControlLogix 5580 |
| User Memory | 40 MB |
| Built-in Communication | 1 Gbps EtherNet/IP Port; USB 2.0 |
| EtherNet/IP Devices | Supports up to 300 Nodes |
| Local Display | 4-Character Scrolling Alpha-numeric Display |
| Environmental Protection | Conformal Coated (K-Series) |
| Module Width | Single Slot |
| Weight | 1.19 lbs (0.54 kg) |
Engineering Advantages
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Ultra-High-Speed Processing: The 5580 architecture delivers up to 45% more capacity and significantly faster scan times than previous generations. This speed enables the 1756-L85EK to handle high-axis-count motion and complex safety instructions within a single task.
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Corrosion Resistance (Conformal Coating): The internal circuit boards feature a specialized conformal coating. This protective layer shields sensitive electronics from salt spray, humidity, chemical vapors, and dust, preventing premature hardware failure in wastewater, oil & gas, or mining applications.
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Integrated Gigabit Networking: The built-in 1 Gbps Ethernet port facilitates high-speed data exchange and supports up to 300 EtherNet/IP devices. This eliminates the need for separate communication modules in many configurations, saving valuable chassis space.
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Streamlined Diagnostics: The integrated 4-character display provides real-time status updates and error codes directly on the front panel. This allow maintenance teams to identify network faults or internal errors instantly without connecting a laptop.
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No Battery Required: This controller utilizes advanced energy storage technology to maintain the internal clock and volatile memory during power loss. This eliminates the maintenance burden of periodic battery replacements and the risk of data loss due to dead batteries.
FAQs
Q: What does the "K" suffix in 1756-L85EK signify?
A: The "K" designates that the controller is Conformal Coated. This makes the unit suitable for "Class G3" environments where corrosive gases or high humidity would otherwise damage standard electronic components.
Q: How many EtherNet/IP nodes can this controller manage?
A: The 1756-L85EK supports up to 300 EtherNet/IP nodes. This high node count makes it ideal for large-scale decentralized I/O systems and plant-wide integration.
Q: Can I use the USB port for permanent HMI communication?
A: No. The USB 2.0 port serves primarily as a local programming and diagnostic interface. For permanent communication with HMIs or SCADA systems, use the high-speed 1 Gbps Ethernet port.
Q: Is the 1756-L85EK compatible with older 1756-series chassis?
A: Yes. The 1756-L85EK installs into standard ControlLogix 1756 chassis. However, to achieve full gigabit performance across the backplane, we recommend using the Series C or later chassis and updated power supplies.
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
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
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.