Product Details
Product Overview
The Allen-Bradley 1747-BSN serves as the critical hardware interface for creating redundant controller systems within the SLC 500 platform. This Backup Scanner Module enables a high-availability "hot-backup" configuration, allowing a secondary processor to take control of Remote I/O and DH+ networks if the primary controller fails. We provide this module as 100% Brand New and Original, ensuring your critical infrastructure maintains maximum uptime without the risks associated with used legacy hardware.
Technical Specifications
| Parameter | Specification Details |
| Module Type | Backup Scanner Module |
| Compatible Processors | SLC 5/02, 5/03, 5/04, 5/05 |
| Backplane Current (5V DC) | 800 mA |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Communication Cable | Belden 9463 (Blue Hose) |
| Terminations | 6-Pin Phoenix Connector |
| System Placement | Standard 1746 I/O Chassis Slot |
| Shipping Weight | 1.00 lbs (0.45 kg) |
Engineering Advantages
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High-Speed Fault Detection: The 1747-BSN continuously monitors the health of the primary SLC processor. Upon detecting a processor fault or power loss, the module initiates a high-speed switchover to the backup rack, maintaining control over the Remote I/O network with minimal interruption to the process.
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Network Integrity Maintenance: By utilizing the standard Belden 9463 "Blue Hose" cable, the 1747-BSN bridges the communication gap between primary and secondary chassis. It synchronizes data across Data Highway Plus (DH+) and Remote I/O links, ensuring the standby controller possesses the most recent process variables.
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Simplified Redundancy Architecture: This module eliminates the need for complex, third-party failover hardware. It integrates directly into the standard 1746 chassis, allowing engineers to implement redundancy for critical SLC 5/04 or 5/05 systems using native Allen-Bradley protocols.
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Secure Industrial Terminations: The 6-pin Phoenix connector provides a vibration-resistant interface for communication wiring. This termination style prevents accidental disconnects in high-vibration manufacturing environments, such as automotive assembly or material handling lines.
FAQs
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Which processors can I use with the 1747-BSN?
The 1747-BSN supports SLC 5/02, 5/03, 5/04, and 5/05 processors. To ensure a successful switchover, you must use identical processors and memory configurations in both the primary and backup chassis.
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Does this module require a specific slot in the 1746 chassis?
While you can technically place the module in any available I/O slot, engineers typically position the 1747-BSN in the first slot following the processor to optimize backplane communication speed and cable management within the cabinet.
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Is this a Brand New original product or a "pull"?
We guarantee this unit is 100% Brand New and Original. Because the 1747-BSN manages critical system failover, using used or refurbished modules introduces unacceptable risk. Our stock ensures factory-fresh components for maximum reliability.
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What happens to the outputs during a switchover?
The 1747-BSN manages the Remote I/O link to ensure that outputs maintain their state or transition to a programmed safe state during the switchover. The exact behavior depends on your Remote I/O adapter settings and the switchover timing configured in the backup scanner's setup.
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
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