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
Understanding PLC Digital Output Electronic Architectures: Relay, Transistor, and Triac Specifications
Selecting the correct electronic switching interface represents a critical decision point when designing industrial automation control panels. While modern Programmable Logic Controllers (PLCs) handle complex internal binary logic smoothly, physical connections to field devices require distinct electrical hardware. This comprehensive technical guide analyzes the performance, limitations, and circuit architecture of relay, transistor, and triac digital outputs.
Advanced Loop Tuning: Mastering Proportional Control for Tank Level Systems in Siemens TIA Portal
Managing liquid levels within storage vessels represents a fundamental process loop challenge in modern industrial automation. While comprehensive Proportional-Integral-Derivative (PID) controllers handle highly volatile dynamics, a focused Proportional (P) controller offers an ideal, fast-acting alternative for specific hydraulic applications. This technical guide outlines the execution of proportional control loops utilizing the Siemens TIA Portal ecosystem.
Understanding Fail-Safe Hardware: Core Technical Principles of Safety Relays in Industrial Automation
Modern factory automation demands robust risk-reduction strategies to protect personnel and expensive machinery. While standard controllers manage process variables, dedicated safety hardware maintains critical protection layers. This technical overview breaks down why standard switching devices fall short and explains how safety relays establish reliable, fail-safe control systems.