Correcting Physical Bus Problems - BCPro - LIT-12011908 - General System Information - BCPro System - 4.0

MS/TP Communications Bus for the BCPro System Technical Bulletin

Brand
BCPro
Product name
BCPro System
Document type
Technical Bulletin
Document number
LIT-12011908
Version
4.0
Revision date
2020-03-16
Language
English

The MS/TP bus is subject to a number of physical factors that can affect performance. Consider the following common physical attributes:

  • Check wires.

    • Verify proper wire gauge, connections, polarity, and lengths.

    • Look for opens and shorts.

  • Check terminations.

    • Verify that EOL terminations are only at the ends of daisy chains.

  • Check addresses.

    • Check for duplicate addresses.

    • Verify that the address range is sequential.

  • Check for and eliminate T-Taps (wire configurations that create a T shape) and star configurations.

  • Check for consistent baud rates.

  • Check for sources of interference.