Reliability (Totalization) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
15.0
Revision date
2022-11-18
Language
English

The Totalization module reports the following reliability values:

  • Overflow: Takes place when the Present Value, Accumulator, Rollover Amount, or Rollover Count exceeds the maximum value that can be expressed by single floating-point number. At Overflow, the Present Value keeps its previous value and stops updating.

  • Round Off Error: Because the Present Value is implemented as a single floating-point number, it has 7 digits precision.

  • Input Unreliable: If input is unreliable, the module stops Totalization.