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Konzept
Produkte:
AS-B, Enterprise Central, Enterprise Server, AS-P, WorkStation, Project Configuration Tool
Funktionen:
Trends
Produktversion:
3.2, 3.3, 2022
15.10.2020
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.
If you try to configure a trend log to store a larger number of log records than the EcoStruxure BMS server can manage, the trend log is not created.
Abbildung:
Circular storing, schematic
Trend Log Functions
Trends Overview
Interval Trend Logs
Meter Function
Change of Value Trend Logs
Variable Triggered Trend Logs
Manual Trend Logs
Editing the Log Size for a Trend Log