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Allen-Bradley 1756-L72/B
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 1756-L72/B ControlLogix Logix5572 Processor is a key component for advanced industrial automation, meticulously engineered for demanding environments. This high-performance controller offers a substantial 4MB of user memory and 0.98MB of I/O memory, providing ample capacity for intricate logic and extensive data processing. Its robust design supports an impressive 128,000 digital I/O points and 4,000 analog I/O points, making it essential for large-scale control systems. Featuring a high-speed USB 2.0 port for programming and downloads, the 1756-L72/B ensures rapid data transfer and smooth system integration, minimizing downtime and increasing operational efficiency. Beyond its internal capabilities, this processor excels in connectivity, supporting a wide range of industrial networks including EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus™, Remote I/O, SynchLink™, and various third-party process and device networks. This broad network compatibility ensures effortless integration into diverse automation setups, positioning the 1756-L72/B as a flexible and future-ready solution for optimizing complex industrial processes. As a member of the ControlLogix family, the 1756-L72/B is designed to deliver consistent, dependable performance within Allen-Bradley's integrated architecture, guaranteeing seamless compatibility and optimal functionality within your existing or new automation infrastructure.Key Features Expanded 4MB User Memory: Accommodates complex control logic and data-intensive tasks, enabling high-level process management. Ample 0.98MB I/O Memory: Facilitates effective management of large input/output configurations, ensuring responsive and precise control. Extensive I/O Support: Manages up to 128,000 digital I/O and 4,000 analog I/O points, offering significant scalability for growing automation requirements. High-Speed USB 2.0 Interface: Provides a 12 Mbps connection for quick programming, downloading, and data diagnostics, boosting productivity. Broad Network Compatibility: Integrates seamlessly with EtherNet/IP, ControlNet, DeviceNet, DH+, Remote I/O, SynchLink™, and other third-party networks, ensuring universal connectivity. Flawless ControlLogix Integration: Optimized for harmonious operation within the Allen-Bradley automation ecosystem, ensuring peak performance. Technical SpecificationsModel: 1756-L72/BSeries: ControlLogix Logix5572User Memory: 4MBI/O Memory: 0.98MBDigital I/O Capacity: 128,000 PointsAnalog I/O Capacity: 4,000 PointsCommunication Ports: 1 x USB 2.0 (Full Speed, 12 Mbps)Industrial Network Compatibility: EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus™, Remote I/O, SynchLink™Chassis Compatibility: ControlLogixOperating Temperature: 0°C to 60°C (32°F to 140°F)Applications Large-Scale Industrial Automation: Ideal for managing complex, high-speed, and critical automation tasks across various industries. Advanced Manufacturing & Production Lines: Enables real-time precision control, optimizing throughput and reducing operational variances. Sophisticated Motion Control & Robotics: Delivers the processing power necessary for intricate multi-axis motion control and advanced robotics. Critical Process Control & Utility Management: Ensures accurate monitoring, regulation, and reliability in process industries and essential utility infrastructures. SCADA & Distributed Control Systems (DCS): Provides robust computing and communication capabilities for comprehensive oversight and seamless integration. Energy Management Systems: Facilitates intelligent control and optimization of energy consumption in large industrial facilities. Why ChooseThe 1756-L72/B offers unmatched processing power, with its 4MB user memory enabling the execution of extremely complex control applications.Order NowContact us today to inquire about pricing and availability for the Allen-Bradley 1756-L72/B ControlLogix Logix5572 Processor. Our team is ready to assist you in finding the perfect automation solution for your needs.FAQWhat is the user memory capacity of the 1756-L72/B?The 1756-L72/B features a generous 4MB of user memory.What types of industrial networks are supported by this processor?This processor supports a wide array of networks including EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus™, Remote I/O, and SynchLink™.Can this processor handle large numbers of I/O points?Yes, it supports up to 128,000 digital I/O points and 4,000 analog I/O points.
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Allen-Bradley 1756-L72/B
Overview
This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
- Engineered to integrate inside ControlLogix installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
Model: 1756-L72/B
Series: ControlLogix Logix5572
User Memory: 4MB
I/O Memory: 0.98MB
Digital I/O Capacity: 128,000 Points
Analog I/O Capacity: 4,000 Points
Communication Ports: 1 x USB 2.0 (Full Speed, 12 Mbps)
Industrial Network Compatibility: EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus™, Remote I/O, SynchLink™
Chassis Compatibility: ControlLogix
Operating Temperature: 0°C to 60°C (32°F to 140°F)
Applications
- Large-Scale Industrial Automation: Ideal for managing complex, high-speed, and critical automation tasks across various industries.
- Advanced Manufacturing & Production Lines: Enables real-time precision control, optimizing throughput and reducing operational variances.
- Sophisticated Motion Control & Robotics: Delivers the processing power necessary for intricate multi-axis motion control and advanced robotics.
- Critical Process Control & Utility Management: Ensures accurate monitoring, regulation, and reliability in process industries and essential utility infrastructures.
- SCADA & Distributed Control Systems (DCS): Provides robust computing and communication capabilities for comprehensive oversight and seamless integration.
- Energy Management Systems: Facilitates intelligent control and optimization of energy consumption in large industrial facilities.
Why Choose the 1756-L72/B?
The 1756-L72/B offers unmatched processing power, with its 4MB user memory enabling the execution of extremely complex control applications.
Availability & Shipping
- ▸In stock: 1756-L72/B ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 1756-L72/B ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
Related Allen-Bradley resources
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.