PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1747-BSN is a Backup Remote I/O Scanner for SLC 500 systems. It provides redundancy for remote I/O operations across complementary primary and secondary chassis. The primary scanner module manages active remote I/O communication. The secondary module remains on standby to assume control if a primary failure occurs. This architecture maintains uninterrupted network supervision in process control systems.
The module integrates a High-Speed Serial Link to write retentive data between processors. A Local Serial Link conveys diagnostic status across multiple scanner modules in the same chassis. The hardware consumes 800 milliamps of backplane current at 5 Volts direct current. Operating temperature ranges from 0 to 60 degrees Celsius.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| UPC | 611320178791 |
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| Weight | 1.00 lbs (0.45 kg) |
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| Module Type | Backup Scanner Module |
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| Compatible Processors | SLC 5/02, 5/03, 5/04, 5/05 |
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| Backplane Current (5 Volts) | 800 milliamps |
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| Operating Temperature | 0-60 Celsius |
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| Cable | Belden 9463 |
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| Connectors | 6-Pin Phoenix Connector |
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TECHNICAL INFORMATION
Features
- Enables redundant control architectures across primary and secondary SLC 500 racks.
- Features High-Speed Serial Link for updating retentive data between processors.
- Includes Local Serial Link to exchange diagnostic status among co-located modules.
- Offers channel switching capability between Remote I/O and DH+ networks.
- Provides secondary channel switching for RS-232 and RS-485 operator interface communication.
TECHNICAL INFORMATION
Applications
- Redundant Remote I/O architectures in SLC 500 control networks.
- Critical manufacturing lines requiring standby processor takeover capability.
- Distributed human-machine interface switching between redundant controllers.
TECHNICAL INFORMATION
Connections / Interfaces
- Uses a 6-pin Phoenix connector for network wiring terminations.
- Connects using Belden 9463 twinaxial cable for remote I/O communication.
- Provides dedicated High-Speed Serial Link and Local Serial Link connection ports.
- Supports RS-232 and RS-485 serial communication switching for peripheral devices.
TECHNICAL INFORMATION
Installation Guidelines
- Verify all module DIP switch settings before inserting into the chassis.
- Mount the module in an appropriate slot within an SLC 500 chassis.
- Ensure operating environmental temperatures remain between 0 and 60 degrees Celsius.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure channel one for either Remote I/O or DH+ network protocol.
- Establish complementary primary and secondary module pair assignments in software.
- Configure retentive data transfer limits over the High-Speed Serial Link.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley SLC 5/02 processors.
- Compatible with Allen-Bradley SLC 5/03 processors.
- Compatible with Allen-Bradley SLC 5/04 processors.
- Compatible with Allen-Bradley SLC 5/05 processors.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley SLC 5/02 processors. Compatible with Allen-Bradley SLC 5/03 processors. Compatible with Allen-Bradley SLC 5/04 processors. Compatible with Allen-Bradley SLC 5/05 processors.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1747-BSN module?
The 1747-BSN provides backup redundancy for remote I/O systems. It allows a secondary processor to assume control if the primary scanner fails.
Which processors are compatible with the 1747-BSN backup scanner?
The module supports Allen-Bradley SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 controllers.
What cable is specified for 1747-BSN remote I/O wiring?
The module specifies Belden 9463 cable and terminates using a 6-pin Phoenix connector.
What is the indicative market price for the 1747-BSN module?
Observed market prices range approximately from $985.00 to $1,468.65 USD. These figures are indicative market reference pricing only and are not a final quotation.
