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  • Manufacturer: Allen Bradley
  • Description: Backup Scanner Mod
  • Weight: 2 lbs :: ≈ 1 kgs
  • Warranty: 1 Years
  • Product Revisions Available:
  • Other Available Revisions of the 1747-BSN : A, B, C, D, E, F,

Product Manual Excerpt

The 1747-BSN Backup Scanner provides redundancy for: • Remote I/O (RIO) • RS232 channel switchover for co mmunications to devices such as operator interface • DH+ The backup scanner also provides a High Speed Serial Link (HSSL) to write any retentative data from a pr imary to a secondary processor. In addition, the modu le has a Local Serial Link (LSL) to pass status information between multiple 1747-B SN modules located in the same chassis (optional). The 1747-BSN is a complementary set of modules, with one module residing in the primary system and another module in the secondary or backup system. The primary module controls the operation of remote I/O, while the secondary module is available to take over control in the event of a fault in the primary. The backup scanner has the capability to switch between two communication channels. The first channel is configurable as RIO or DH+. The second channel is used to switch the RS232/485 channel in order to provide connection for el ectronic operator interfaces. The DH+/RIO and the RS232/485 channels can be used simultaneously. The Remote I/O (RIO) scanner, Ca talog Number 1747-SN, enables communication between an SLC proc essor (SLC 5/02 or later) and remotely located (3,048 meters [10,000 feet] maximum) 1746 I/O chassis and other RIO-compatible Allen-Bradley operator interface and control devices. The 1747-SN scanner communicates with remotely located devices using the A-B Remote I/O link. The RIO link consists of a single master (scanner) and multiple slaves (adapters). Communication between devices occurs over twinax cable with the devices daisy-chained together. The scanner can reside in any slot of the local SLC chassis except for slot 0. The 1747-BSN includes the same functionality as the 1747-SN scanner, but adds the backup features.

Need To Order A Specific Revision?

Give us a call at 1-800-360-6802 or 1-919-535-3180. We can help you with your Revision specific needs.

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What is New Surplus?

These “New Surplus” units are a great cost saving alternative. This product is in the original manufacturer’s packaging with all sub-assemblies and documentation. Comes with a PLC Distribution Factory & Supply 3-year warranty.

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What is Surplus New?

Surplus New - New unused and includes all sub-assemblies and documentation. Product may ship in manufacturer or PLC Distribution Factory & Supply packaging and includes a PLC Distribution Factory & Supply 3 Year Warranty.

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What is Reconditioned?

Reconditioned products from PLC Distribution Factory & Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

Our Reconditioned Products always come with a PLC Distribution Factory & Supply 2-Year Warranty.

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Repair Service

3-5 Days for most repairs. 24 hour repair upon request at no extra charge. If part is unrepairable, we will exchange with a working unit or return unrepaired.