Data Quantity And Memory Capacity; Buffer Memory - Fronius Primo 208-240 Operating Instructions Manual

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Data Quantity and One USB stick with a memory capacity of 1 GB, for example, can record logging data at a
Memory Capacity logging interval of 5 minutes for approx. 7 years.
CSV file
CSV files can store only 65535 rows (data records) (up to Microsoft® Excel version 2007,
afterwards there is no limit).
At a logging interval of 5 minutes, the 65535 rows are written within approx. 7 months (CSV
data size of approx. 8 MB).
To avoid a loss of data, the CSV file should be backed up to a PC within these 7 months
and deleted from the USB stick. If the logging interval is set longer, this time frame is ex-
tended accordingly.
FLD file
The FLD file should not be larger than 16 MB. At a logging interval of 5 minutes, this cor-
responds to a storage duration of approx. 6 years.
If the file exceeds this 16 MB limit, it should be backed up to a PC, and all data should be
deleted from the USB stick.
After you have backed up the data and removed it from the USB stick, the stick should be
immediately reinserted so that it can record logging data; no further steps are required.

Buffer Memory

If the USB stick is removed (e.g. to back up data), the logging data are written to a buffer
memory in the inverter.
As soon as the USB stick is reinserted, the data are automatically transferred from the buf-
fer memory to the USB stick.
The buffer memory can store a maximum of 6 logging points. Data are logged only during
inverter operation (power greater than 0 W). The logging interval is fixed at 30 minutes.
This leads to a timeframe of 3 hours for recording data to the buffer memory.
When the buffer memory is full, the oldest data in the buffer memory are written over with
the new data.
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ID
Inverter no.
Inverter type (DATCOM code)
Logging interval in seconds
Energy in watt-seconds with reference to the logging interval
Inductive reactive power
Capacitive reactive power
Averages over the logging interval (AC voltage, AC current, DC voltage, DC cur-
rent)
Additional information
NOTE! A full USB stick can lead to the loss of data or the overwriting of data.
When inserting the USB stick, make sure that it has a sufficient memory capacity.
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