Conceito
Registos de tendência
A trend log is a collection of time-stamp values. In WebStation, you can create a trend log from a value.
Registos de tendência de intervalo
The interval trend log collects data at a specific time interval. Each logged value is stored as a record in the trend log. Use this trend log when the logging interval is less than 1 hour.
Para mais informações, consulte Interval Trend Logs .
Registos de tendência extensos
You use an extended trend log to transfer records from a trend log. An extended trend log can be connected to a trend log or connected in a series to another extended trend log. Only one extended trend log can be connected to a trend log.
Para mais informações, consulte Extended Trend Logs .
Armazenamento de registo
All trend logs use circular storing. How many records a trend log can store before overwriting old ones depends on the trend log configuration.
Para mais informações, consulte Log Record Storage .
Função de medidor
The meter function adds meter properties to any trend log type to seamlessly handle consumption calculations independent of meter rollover or meter exchange.
Para mais informações, consulte Meter Function .
Como funcionam os registos de tendências
Interval Trend Logs
Meter Function
Extended Trend Logs
Log Record Storage
Manually Adding a Trend Log Record to a Trend Log