1756-L73 ControlLogix 5573 | Allen Bradley| Controller Module

Product Overview

The Allen Bradley 1756-L73 functions as a high-performance central processing unit within the ControlLogix 5570 family. This Logix5573 controller manages complex discrete, motion, and process applications with high-speed execution and expanded memory capacity. We offer this module as 100% Brand New and Factory Original, ensuring your automation architecture benefits from the latest silicon revisions and full hardware longevity.

Technical Specifications

The 1756-L73 provides significant computational overhead for data-intensive industrial environments:

Engineering Advantages

• Elimination of Internal Batteries: The 1756-L73 utilizes energy storage modules (ESM) to power non-volatile memory during shutdowns. This removes the need for scheduled battery replacements and eliminates the risk of memory loss due to sudden battery failure.

• High-Speed Data Processing: The Logix5573 architecture significantly reduces scan times compared to previous generations. It handles high-axis count motion control and complex PID loops simultaneously without degrading system responsiveness.

• Rapid Programming Access: The integrated USB 2.0 port provides a high-speed interface for logic downloads and online monitoring. This local port simplifies commissioning by allowing engineers to bypass complex network configurations for direct hardware access.

• Enhanced On-Module Diagnostics: The 4-character scrolling display provides real-time status codes and error messages. This allows maintenance teams to identify fault conditions or firmware mismatches immediately without connecting a laptop.

FAQs

• Is this 1756-L73 unit brand new?

  Yes. Every unit we supply is 100% Brand New in the original manufacturer’s box. We do not provide refurbished or used surplus modules, guaranteeing the full integrity of the internal non-volatile memory.

• Does this controller require a separate battery?

  No. The 1756-L73 uses a Capacitor-based Energy Storage Module (ESM). This module charges while the rack has power and provides enough energy to write the project to internal flash memory during a power loss event.

• Can I use the 1756-L73 in a redundant chassis configuration?

  Yes. This controller supports high-availability redundancy. When paired with a 1756-RM2 Redundancy Module and an identical 1756-L73 in a secondary chassis, it provides seamless switchover capabilities for critical processes.

• What software version do I need for this module?

  The 1756-L73 requires Studio 5000 Logix Designer (or RSLogix 5000 version 20 and later). Always ensure your software version supports the firmware revision installed on the hardware for full feature compatibility.