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3.3. File Types
The following file types are produced by the C12 instrument:
• Event files (.log)
• Interval files (.interval)
• Transient files (.transient)
Event and interval files are handled in a special way when a connection to
the data server is initiated. The current file is closed and moved to the
‘spool’ directory, and a new file is opened for future data storage. This
method minimizes the amount of data that is sent to the data server (over
GSM/GPRS), because no data is sent more than once.
The data file naming conventions follows the INFRA data logger rules:
‘INFRA_S1_0_L_T.log’, ‘X_S2_C_L_T.interval’ and
‘X_S2_C_L_T.transient’.
• S1 is the serial number of the entire C12 instrument (xxxx0).
• L is the file sequence number since start on monitoring.
• T is the file creation date/time in number of seconds since
2000-01-01, presented in hexadecimal characters.
• X is the type of node (e.g. C12T).
• S2 is the serial number of the individual C12 node (xxxx0,
xxxx1or xxxx2).
• C is the channel of the measurement standard.
Example 1: ‘INFRA_60300_0_101_0dedff51.log’
Example 2: ‘C12T_60302_1_12_0733b551.interval’
Note! Interval and transient files are node specific. Log files are common
for the C12 instrument.
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General