Updated time/date

[SkizZO]

Hi all, i have a BIG problem...
My weather station sometimes doesn't send data to the pc (Currently i'm running WUHU + Lacrosse WS3250 + Graphweather)

..now, if wuhu doesn't receive any data, it don't update the file currdat.lst (and hystory.dat).

Graphweather then, read those (NOT UPDATED!!) data, publish it, and with the string:

$CurrentDate[%d/%m/%Y]

it says that it's updated!!

Now i wish to know if there is a string who READ DATE/TIME of the LAST data acquired, because the string "$CurrentDate[%d/%m/%Y]" is referred to the date/time of the upload, NOT to the date/time of the last dataset.

How i can resolve this issue??

[SkizZO]

Is it possible that's impossible??

Any developer can answer with a "NO, it's impossible" please??