OVERVIEW

Official designation: Allen-Bradley 1747-BSN (SLC 500, Backup Scanner Module)

The 1747-BSN is a specialized single-slot module for the SLC 500 family that provides redundancy for the remote I/O link. It serves as a backup scanner to ensure uninterrupted operation in distributed control environments.

KEY SPECS SUMMARY

Power: 5V DC, 500 mA

Interfaces / Ports: Remote I/O BNC connector

Indicators: COMM, RUN, BATT, FAULT

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 5/02, 5/03, 5/04, 5/05 processors

Limit: Single axis control link redundancy

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the power draw of the 1747-BSN module from the SLC 500 backplane power supply?

A: The 1747-BSN module draws 500 mA from the 5V DC backplane power supply.

Wiring & Installation:

Q: What type of cable and connector is used to interface the 1747-BSN with the remote I/O network?

A: The module uses a standard BNC connector for coaxial cable connection to the remote I/O link.

Troubleshooting & Compatibility:

Q: What does the illuminated BATT indicator on the 1747-BSN module signify?

A: The BATT indicator signifies an issue with the battery on the primary CPU/Scanner module.

Replacement & Upgrades:

Q: Is the 1747-BSN required in all SLC 500 systems utilizing remote I/O communications?

A: No, it is only required in systems where primary scanner failure redundancy is desired for the remote I/O link.