Product Details
Overview
The Allen-Bradley 1757-SRM is a high-reliability System Redundancy Module for ControlLogix and ProcessLogix environments. It enables fault-tolerant operation by allowing redundant controller configurations, ensuring continuous system availability and minimizing downtime in critical automation applications.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model & Part Number: 1757-SRM
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Category: PLCs
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Product Line: ControlLogix
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Module Type: System Redundancy Module
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Weight: 1.00 lbs (0.45 kg)
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Backplane Current: 0.160 A at 24V DC
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Supported Controllers: Logix 5560
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Maximum Power Dissipation: 11.28 W
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Maximum Thermal Dissipation: 38.49 BTU/hr
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Slot Width: 2
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Operating Temperature: 0–60°C (32–140°F)
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Enclosure Type: Open-style (no rating)
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Connector: SC fiber-optic type
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Cable Compatibility: 62.5/125 μm multi-mode fiber-optic
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Wavelength: 1300 nm
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Fiber Channels: 1 transmit and 1 receive
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Connector Cable Options: 1757-SRC1 (1 m), 1757-SRC3 (3 m), 1757-SRC10 (10 m), 1757-SRC50 (50 m), 1757-SRC100 (100 m)
Applications
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High-availability PLC systems requiring redundant controllers
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Critical process control in manufacturing plants and utility operations
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Systems requiring uninterrupted communication between redundant modules
FAQ
Q: Which controllers are compatible with the 1757-SRM?
A: The 1757-SRM supports Logix 5560 controllers in ControlLogix and ProcessLogix setups.
Q: What fiber-optic cables are recommended for the module?
A: Allen-Bradley fiber-optic cables such as 1757-SRC1, SRC3, SRC10, SRC50, and SRC100 are compatible.
Q: Can this module operate in harsh industrial environments?
A: The module operates within 0–60°C (32–140°F) and is suitable for standard control cabinet installations; however, it does not have a sealed enclosure rating.
Q: How many channels does the module have?
A: It provides a single channel for transmit and receive fiber communication.
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
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.
Optimizing Power Supply Sizing for Industrial Automation Systems
The power supply is the silent heartbeat of any industrial automation system. While engineers often prioritize processors and communication protocols, a stable power architecture remains the most critical factor for long-term reliability. In my 15 years of experience, I have found that neglecting power supply sizing often leads to ghost errors, intermittent field device failures, and costly production downtime.