Buffer Memory; Suitable Usb Sticks - Fronius IG-TL 3.0 Operating Instructions Manual

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. 7 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 24 logging points. Data are logged only during
inverter operation (power greater than 0 W). The following time spans for storing data re-
sult from the different logging intervals:
When the buffer memory is full, the oldest data in the buffer memory are written over with
the new data.
IMPORTANT The buffer memory requires a constant power supply.
If there is an AC power outage during operation, all data in the buffer memory are lost. The
automatic night switch-off must be deactivated so that the data are not lost at night (set
'Night Mode' to ON - see chapter "Setting and Displaying Menu Items," section "Displaying
and setting parameters in the 'DATCOM' menu item").
Suitable USB Due to the number of USB sticks on the market, we cannot guarantee that every USB stick
sticks will be recognized by the inverter.
Fronius recommends using only certified, industrial USB sticks (look for the USB-IF logo).
The inverter supports USB sticks using the following file systems:
-
-
-
Fronius recommends that the USB stick only be used for recording logging data or for up-
dating the inverter software. USB sticks should not contain any other data.
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 sufficient memory capacity.
Logging interval [min]
5
10
15
20
30
FAT12
FAT16
FAT32
Time span [min]
120
240
360
480
720
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