Product Details
Overview
The Allen-Bradley 1756-RM is a ControlLogix redundancy module designed to provide seamless system switchover and increased operational reliability in mission-critical automation environments. It ensures continuous controller operation by synchronizing data between redundant ControlLogix chassis, minimizing downtime during primary system failure or maintenance.
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: ControlLogix Series
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Model / Part Number: 1756-RM
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Product Type: Redundancy Module
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Weight: 1.13 lbs (0.51 kg)
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Mounting Type: Chassis-based, installable in any slot
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Current Draw:
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1.2 V DC: 4 mA
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5.1 V DC: 1.2 A
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24 V DC: 120 mA
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Power Dissipation: 9 W
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Thermal Dissipation: 31 BTU/hr
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Operating Temperature: 0°C to 60°C (32°F to 140°F)
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Storage Temperature: -40°C to 85°C (-40°F to 185°F)
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Temperature Code: IEC T4
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Compatible Chassis:
1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 -
Compatible Power Supplies:
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Standard: 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75
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Redundant: 1756-PA75R, 1756-PB75R, 1756-PSCA2
Key Features
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Enables full system redundancy for ControlLogix architectures
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Real-time synchronization between primary and secondary controllers
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Automatic system switchover without process interruption
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Chassis-based design allows flexible installation in any slot
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Compliant with global industrial safety and EMC standards
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Works with both standard and redundant power supplies
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Ideal for high-availability and fault-tolerant control systems
Application Scenarios
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Continuous process control systems
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Power generation and utility automation
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Oil & gas and refinery applications
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Pharmaceutical and food manufacturing lines
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High-availability control environments
FAQs
Q: What is the primary function of the 1756-RM module?
A: The 1756-RM provides system redundancy by allowing two ControlLogix controllers to operate in a synchronized, fault-tolerant configuration.
Q: Can the 1756-RM be installed in any slot?
A: Yes, it is chassis-based and can be installed in any available slot of a compatible ControlLogix chassis.
Q: What happens during a switchover?
A: The module automatically transfers control to the secondary system with minimal delay, ensuring uninterrupted operation.
Q: What power supplies are compatible with the 1756-RM?
A: It supports both standard and redundant power supplies, including models 1756-PA75R, 1756-PB75R, and 1756-PSCA2.
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
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.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.