Vaisala PTB210 SERIES Manuel d'instructions télécharger pdf (Page 43)

A timestamp will not be stored for each record. When data are downloaded or the

binary fomat is converted by the support software, timestamps are calculated from

the data storage interval set in DataInterval() and the time of most recent record.

As each new record is stored, the current timestamp is compared with the last

known stored record. So when the CR1000 determines a record has been skipped,

a timestamp will be stored with the data. This discontinuity in records is termed a

"lapse". The DateInterval() for the tables of the weather station is set as followed:

DataInterval(0,60,Sec,10)

Thus, data are stored without an oﬀset once a minute as deﬁned and retains the

most recent records in RAM up to an automatically allocated memory limit. The

lapse parameter is set to 10 and characterizes the maximum number of lapse time

stamps that will be recored and allocates the additional memory space required for

the lapse time stamps.

4.4.3 Output Processing Instructions

Data storage processing instructions determine what data are stored in the data

table. When a data table is called in the CRBASIC program, data storage processing

instructions process the deﬁned variables holding current inputs or calculations.

However, the process of data storage to the CF card can be implemented. The data

table for indoor monitoring looks as following:

DataTable(Table_Indoor,True,-1)

DataInterval(0,60,Sec,10)

CardOut(1,-1000)

Average(2,T107_C(1),FP2,Fasle)

Average(1,Temp_C,FP2,False)

Average(1,Humid_C,FP2,False)

Sample(1,N,FP2)

EndTable

Both data of temperature and humidity are stored without an oﬀset once a minute

as deﬁned average and the number of records during the main scan interval is stored

in the associated variable N. Furthermore the common output is carried forward to

the CF card and saved in ﬁll and stop mode in data tables.

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Vaisala PTB210 SERIES Manuel d'instructions Page 43