Allen-Bradley 1756-L85EP ControlLogix 5580E 40MB

Allen-Bradley 1756-L85EP ControlLogix 5580E Process Controller

Product Introduction

The 1756-L85EP represents the latest generation of process controllers from Allen‑Bradley. This module belongs to the powerful ControlLogix 5580E series. It provides substantial processing power for demanding process applications. With 40 MB of user memory, it handles large control strategies effortlessly. Moreover, the integrated 1 GB Ethernet port enables high-speed network connectivity. You can connect up to 300 EtherNet/IP devices directly to this controller. Its USB 2.0 port offers convenient local access for programming and diagnostics. Furthermore, the built-in 4-character alphanumeric display provides immediate status information. This controller operates exclusively within the Studio 5000 automation design environment. Its design focuses on reliability and performance for continuous process industries.

Technical Specifications of the 1756-L85EP Controller

The 1756-L85EP is a feature-rich controller with impressive specifications. Its 40 MB user memory provides ample space for complex logic and data management. The module supports a maximum of 128,000 total I/O points. This includes up to 128,000 digital I/O and 4,000 analog I/O. Consequently, it can manage extensive field device networks. The controller's Ethernet interface supports 10/100/1000 Mbps speeds. This auto-negotiation feature ensures compatibility with various network infrastructures. Additionally, the USB port operates at 12 Mbps for fast data transfer. The 1756-L85EP dissipates 6.2 W of power and 21.2 BTU/hour of heat. Its backplane current draw is 1.2 A at 5 V DC and 5 mA at 1.2 V DC.

Communication and Network Capabilities

This controller offers robust communication options for modern factories. The integrated 1 GB Ethernet port serves as the primary network interface. It eliminates the need for separate communication bridge modules. Specifically, the 1756-L85EP supports up to 300 EtherNet/IP nodes. This capacity suits large distributed control systems. The controller also provides a USB 2.0 port for direct laptop connections. This simplifies programming, firmware updates, and troubleshooting tasks. Furthermore, the Allen‑Bradley 1756-L85EP works seamlessly with the Studio 5000 environment. This integration streamlines the engineering workflow from design to deployment. For redundant applications, the controller offers full support when used with compatible chassis and power supplies.

Memory Architecture and Process Control Features

The 40 MB user memory on the 1756-L85EP accommodates extensive applications. It supports numerous tasks and programs for complex automation sequences. This controller is specifically optimized for process control applications. Its processing capabilities handle PID loops, batch processes, and sequential control efficiently. The built-in alphanumeric display provides real-time controller status. It shows diagnostic codes, IP addresses, and system alerts clearly. Additionally, the 1756-L85EP supports advanced process control functions. These include function block programming and structured text languages. The controller's high-speed Ethernet backbone ensures deterministic communication with remote I/O. Therefore, it delivers consistent performance even in time-critical processes.

Mechanical and Environmental Specifications

The 1756-L85EP operates reliably across a wide temperature range. Its operating temperature spans from 0°C to 60°C (32°F to 140°F). The non-operating temperature range is 0°C to 50°C (32°F to 122°F). For Series C chassis, the maximum surrounding air temperature is 60°C. The module withstands vibration of 2 g at 10 to 500 Hz. It also tolerates operating shocks of 30 g and non-operating shocks of 30 g. Furthermore, the unit functions in humidity levels from 5% to 95% non-condensing. Its power dissipation is rated at 6.2 W. Thermal dissipation is 21.2 BTU/hour. The module features an open-type enclosure design. It complies with T4 ATEX temperature code ratings for hazardous locations. These robust specifications ensure reliable operation in demanding industrial environments.

Chassis Compatibility and Installation Requirements

Installing the 1756-L85EP requires careful chassis selection. It is compatible with ControlLogix Series C chassis for full temperature range operation. You can also use it in Series B chassis, but with a derated temperature range. Supported chassis models include the 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17. The controller draws power directly from the chassis backplane. Ensure your power supply meets the module's current requirements. Compatible power supplies include the 1756-PA50, 1756-PB72, and 1756-PA75R series. For redundant configurations, use redundant power supply models. The 1756-L85EP mounts vertically in any available slot. Always verify slot availability and backplane power capacity before installation. Proper grounding and shielding are essential for optimal performance.

Packaging and Delivery Information

Each Allen‑Bradley 1756-L85EP controller ships in manufacturer-approved packaging. The package includes the processor module and a quick-start guide. It also contains a product information leaflet with basic specifications. Batteries are not included as this model uses capacitor-backed memory. The packaging protects against electrostatic discharge and physical damage. We ensure all items are securely packed for international shipping. Please keep the original packaging for potential future transport.

Shipping Options

We partner with leading global couriers for all deliveries. Our shipping providers include FedEx, UPS, and DHL. These services offer reliable tracking and timely delivery worldwide. Most orders are dispatched within 1-2 business days. Expedited shipping is available for urgent project requirements. Choose your preferred carrier during the checkout process. All shipments receive a unique tracking number for monitoring. International deliveries may require additional customs clearance time.

Frequently Asked Questions

1. What is the user memory capacity of the 1756-L85EP?
The 1756-L85EP provides 40 MB of user memory. This capacity is sufficient for large-scale process control applications requiring extensive logic and data storage.

2. Can the 1756-L85EP be used in a Series B chassis?
Yes, but with a derated temperature range. The 1756-L85EP works best in Series C chassis for full operating temperature specifications.

3. How many EtherNet/IP devices does the 1756-L85EP support?
This controller supports up to 300 EtherNet/IP devices directly. This makes it ideal for large networked automation systems.

4. Does the 1756-L85EP include a built-in display?
Yes, it features a 4-character alphanumeric display. This shows important status information and diagnostic codes for easy troubleshooting.

5. What software is required to program the 1756-L85EP?
The Allen‑Bradley 1756-L85EP is supported exclusively in the Studio 5000 environment. This software provides comprehensive engineering and design tools.