Product Details
Product Description
The Allen Bradley 1756-L73S GuardLogix controller is a dual-slot safety automation processor designed for high-performance control and integrated safety applications. With 8 MB of standard user memory and 4 MB of dedicated safety memory, it supports large-scale systems requiring advanced safety functionality. The controller includes nonvolatile memory options, high I/O capacity, and robust electrical characteristics, making it suitable for complex industrial automation environments.
Technical Specifications
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Manufacturer Allen Bradley
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Product Line GuardLogix 1756 Series
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Product Type Safety Automation Controller
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Part Number 1756-L73S
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User Memory 8 MB
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Safety Memory 4 MB
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I/O Memory 0.98 MB
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Nonvolatile Memory Options
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1 GB (1756-SD1 standard with controller)
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2 GB (1756-SD2 optional)
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Digital I/O Capacity Up to 128,000 points
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Analog I/O Capacity Up to 4,000 points
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Total I/O Capacity 128,000 points
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Current Draw
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5 mA @ 1.2 V DC
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800 mA @ 5.1 V DC
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Power Dissipation 2.5 W
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Thermal Dissipation 8.5 BTU/hr
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Isolation Voltage 30 V continuous (USB port-to-system), type tested at 980 V AC for 60 s
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Slot Width 2 slots (controller requires both)
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Weight 0.25 kg
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Shipping Weight 1.5 kg
Application Scenarios
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Large-scale safety-critical automation systems
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Machine control requiring integrated safety and high I/O density
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Distributed control systems with advanced memory and redundancy needs
FAQ
Q: What is the difference between user memory and safety memory? A: User memory (8 MB) is for standard control tasks, while safety memory (4 MB) is dedicated to safety-related functions.
Q: Does the controller include nonvolatile memory? A: Yes, a 1 GB SD card (1756-SD1) is included, with an optional 2 GB card (1756-SD2).
Q: How many I/O points can the 1756-L73S support? A: Up to 128,000 digital I/O points and 4,000 analog I/O points.
Comparable Models
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1756-L73S: GuardLogix safety controller with 8 MB user memory and 4 MB safety memory (this model)
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1756-L72S: GuardLogix controller with smaller memory capacity
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1756-L74S: GuardLogix controller with larger memory for more complex systems
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
Implementing FIFO and LIFO Data Sequencing in PLC Programming
Data management serves as a cornerstone of modern industrial automation. Whether tracking materials on a conveyor or managing batch sequences in a process, engineers frequently rely on sequential logic. Two primary structures—First-In-First-Out (FIFO) and Last-In-First-Out (LIFO)—form the bedrock of this data handling. Mastering these blocks allows programmers to optimize complex machine operations efficiently.
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.