Product Details
Overview
The Allen-Bradley 1756-RM2 is a ControlLogix Redundancy Enhanced Module engineered to provide reliable system redundancy and continuous operation. It supports multiple chassis configurations and is compatible with standard and redundant power supplies, ensuring high system availability.
Technical Specifications
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Manufacturer Allen-Bradley (Rockwell Automation)
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Series ControlLogix
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Model / Part Number 1756-RM2
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Product Type Redundancy Enhanced Module
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Weight 0.3 kg
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Current Draw 1.16 A @ 5.1 V DC; 3.4 mA @ 24 V DC
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Power Dissipation Maximum 6 W
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Thermal Dissipation 21 BTU/hr
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Connector Cables 1756-RMC1 (1 m), 1756-RMC3 (3 m), 1756-RMC10 (10 m)
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Slot Width 1 slot
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Module Location Any chassis slot
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Compatible Chassis 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
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Standard Power Supplies 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75
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Redundant Power Supplies 1756-PA75R, 1756-PB75R, 1756-PSCA2
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Enclosure Type Open-style (no enclosure)
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Temperature Rating T4 per North American & IEC standards
Key Features
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Enhanced redundancy for ControlLogix systems, minimizing downtime
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Supports standard and redundant power supply configurations
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Compatible with multiple chassis sizes and slots for flexible installation
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Low power consumption and thermal dissipation for efficient operation
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Connector cable options available for different chassis distances
Application Scenarios
The 1756-RM2 is ideal for:
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Redundant ControlLogix PLC systems in critical applications
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High-availability machinery and process control
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Systems requiring continuous operation during power supply or module failures
Similar Models Comparison
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1756-RM2 – Redundancy enhanced module, supports multiple chassis and power configurations
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1756-RM1 – Earlier generation redundancy module with fewer chassis compatibility
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1756-RM3 – Advanced redundancy with extended diagnostics and communication options
FAQs
Q: Which chassis are compatible with this module?
A: The 1756-RM2 works with 1756-A4, A7, A10, A13, and A17 ControlLogix chassis.
Q: Can it use both standard and redundant power supplies?
A: Yes, it supports standard 1756-PA72/75 and PB72/75, as well as redundant 1756-PA75R, PB75R, PSCA2 power supplies.
Q: How much power does it dissipate?
A: Maximum power dissipation is 6 W, with thermal dissipation of 21 BTU/hr.
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.