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
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.
Mastering Modern Industrial Joystick Controls in Heavy Automation
Industrial joysticks play a pivotal role in human-machine interaction across heavy material handling and mobile hydraulics. These tactile controllers translate complex operator movements into precise electrical signals for PLCs, motion controllers, and DCS networks. Consequently, selecting and installing the right joystick architecture ensures operator safety, reduces fatigue, and optimizes equipment performance.