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Concetto

Concetto


Prodotti: AS-C, AS-B, Enterprise Server, AS-P, WorkStation, Project Configuration Server, Project Configuration Tool
Funzionalità: Tendenza
Versione del prodotto: 1.8
13/10/2016

Log Record Storage

​All trend logs use circular storing. How many records a trend log can store before overwriting old ones depends on the trend log configuration.

For example, a trend log is configured to store 10 records. The logging starts and the first record x1 is stored. After 10 records the trend log is full. The next record x11 overwrites the oldest record which in our case is x1. The next logging x12 overwrites the oldest record x2, and so on.

Additional internal records can be generated by the log itself. These records may not be visible. Internal records are a part of the log usage.

 
action_zoom_plus_stroke Circular storing, schematic
Figura: Circular storing, schematic
  • Trend Log Functions
  • Trends Overview
  • Interval Trend Logs
  • Meter Trend Logs
  • Change of Value Trend Logs
  • Variable Triggered Trend Logs
  • Manual Trend Logs
  • Editing the Log Size for a Trend Log