The energy data cache is a function of the Busmaster. It reads cyclical the connected and respective configuration Bus devices and treatments necessary the data. It storage this in a SQL-Database until reaching the set memory depth, the SQL-Database dot it for example for the retrieve of data or another EDIFACT system.
In the basic settings of the Busmaster the memory limit can be activated and set:
Attention: If the data limitations disabled, then there can be memory problems that can lead to unstable system!