32 AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
…10 Data logging
Archive file types
All files created by the transmitter are assigned filenames
automatically. Each type of file is assigned a different file
extension. Archive files are created as text format,
comma-separated data files.
The file type and extension for Data
The file type and extension for Event log files (containing
historical entries from the Audit, Calibration, Diagnostic
and Alarm logs is ‘.A00’.
<ddmmmyy><hhmmss><instrument tag>.A00
NOTICE
• The ‘instrument tag’ is set in the Device Setup level (see
page 31) when the user has access at Advanced
see page 33.
• The time and date are formatted according to the format
selected in the Display level (Date & Timepage
39.
• The transmitter’s internal clock can be configured to
adjust automatically at the start and end of Daylight
Savingpage 39.
Configuration filenames are preset as Config1 to Config8. The
configuration file type and extension is ‘.CFG’.
Data files
Text format archived data is stored in a comma-separated value
(CSV) format and can be imported directly into a standard
spreadsheet, for example, Microsoft® Excel®.
Alternatively, detailed graphical analysis of the data can be
software.
New data files are created if:
• the transmitter configuration is changed
• one of the current files exceeds the maximum permissible
size (a new file is created at 00:00:00 a.m. on the following
until the new file is created
• the daylight saving period starts or ends
• working files cannot be found/are corrupted
• the date and/or time is changed
The filename is formatted as follows:
•
Log files
The Alarm Event, Calibration, Diagnostic and Audit logs are
archived into the same file. The filenames are formatted as
follows:
• Event logs: <ddmmmyy><hhmmss><instrument tag>.A00
Daylight saving
Files containing data generated during the daylight saving
NOTICE
Start of daylight saving period
A daily file is started at 00:00:00 on 30th March 2019,
filename:
Summertime starts at 2:00am on 30th March 2019 and
the clock changes automatically to 3:00am.
The existing file is closed and a new file is created,
filename:
generated from 00:00:00 to 01:59:59.
generated from 03:00:00.
End of daylight saving period
A daily file is started at 00:00:00 on 26th October 2019
filename:
Summertime ends at 3:00am on 26th October 2019 and
the clock changes automatically to 2:00am.
The existing file is closed and a new file is created,
filename:
generated from 00:00:00 to 02:59:59.
generated from 02:00:00.
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