Product Details
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:
| Feature | Specification |
| Product Series | ControlLogix 5573 |
| User Memory | 8 MB |
| I/O Memory | 0.98 MB |
| Communication Port | USB 2.0 (Programming and Configuration) |
| Controller Connections | 500 Max |
| Local I/O Capacity | 128,000 Digital / 4,000 Analog |
| Current Draw (1.2 VDC) | 5 mA |
| Current Draw (5.1 VDC) | 800 mA |
| Visual Diagnostics | 4-Character Alpha/Numeric Display |
| Weight | 0.53 lbs (0.24 kg) |
Engineering Advantages
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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
Demystifying Programmable Logic Controllers: Comprehensive Guide to PLC Classification and Selection in Industrial Automation
Modern industrial automation heavily relies on Programmable Logic Controllers (PLCs) to drive factory floor efficiency. Over my 15 years as an industrial automation expert working with DCS, TSI, and control systems, I have seen PLCs evolve into the central nervous system of modern manufacturing. Selecting the right controller requires a deep understanding of PLC types based on physical size, hardware architecture, and power supply configurations.
Comprehensive Guide to PLC Types in Modern Industrial Automation
Modern industrial automation relies on programmable logic controllers to govern critical factory operations. System integrators classify PLCs based on scale, hardware architecture, and power supply design. Understanding these core categories enables automation engineers to select the right control system architecture. Consequently, proper hardware selection optimizes performance while minimizing long-term operational costs.
Demystifying the DDE Protocol in Legacy Industrial Automation Systems
Modern control systems rely heavily on seamless interprocess communication to exchange operational data between software programs. Microsoft first introduced the Dynamic Data Exchange (DDE) protocol in 1987 to enable real-time data sharing. In factory automation, DDE served as an early bridge between control software and Windows desktop applications. Therefore, understanding DDE mechanics provides crucial insights into how legacy industrial networks established software-level connectivity.