There is limited lifetime on all flash based memories, including the buitin in the core. Thus its much better to store files on external uSD's or USB-Sticks, as if they break downs they are easily exchanged. However, i cant find a way to change the storeage path for the builtin trend recorder. When using normal Traces, there are an API avaiable for manually storing trace values, there you can put the data on a memory card. https://store.codesys.com/en/trend-api-example.html And another way is to use a database (InfluxDB, MongoDB etc) to store the data on a memory card.
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