Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers
7 Logging
46
IM/AZT6CR–EN Rev. R
7.5.1 Text Format Stream Data Filenames
Text format stream data files can be configured to contain data
gathered over a predefined period of time (selected at the 'New
File Interval' parameter) –
see Section 6.6.3, page 38. The
'Analyzer Tag' is set in the configuration –
Once configured, the filenames for each archive file are assigned
automatically.
Filename extensions are assigned according to the data type
archived, as detailed in Table 7.5.
In addition to creating new stream data files according to the
'New File Interval', they are also created in the following
circumstances:
If the analyzer's power is lost then restored.
If the analyzer is taken offline and the archive media
removed, replaced or refitted.
If the analyzer's configuration is changed.
If one of the current files exceeds the maximum
permissible size.
When the daylight saving period starts or ends.
When one of the above conditions occurs, new stream data files
are created for each enabled group and the file extension index
on each new file is incremented by one from the previous file.
Example
: If the original file had an extension of .D00, after one
of the above events a new file is created with the same filename
but an extension of .D01.
7.5.2
Text Format Stream Data – Example Filenames
New file interval set to Hourly, Filename tag set to Process
Group 1; date is 10
th
October 2007; Channel data and alarm
event log files only enabled:
9:00 am new file created in which all channel data recorded
between 9:00 and 9:59:59 is archived in the following file:
09_00_10 Oct07_Process_Group_1.d00
09:12am Power interrupt occurs
09:13am Power restored and new file created:
09_00_10 Oct07_Process_Group_1.d01
10:00am New file created in which all data recorded between
10:00 and 10:59:59 is archived.
10_00_10 Oct07_Process_Group_1.d00
Note.
The time and date are formatted according to the
date format set in 'Common Configuration' –
New File
Interval
Filename
Hourly
<hour> <day, month, year>
<filename tag>.d00
Daily
<day, month, year> <filename tag>.d00
Monthly
<month, year> <filename tag>.d00
None
<filename tag>.d00
Table 7.4 Text Format Stream Data Format
Data
Text Format
File
Extension
Stream data
*.D**
Alarm Event Log data files containing the
historical record of the alarm events related
to the stream(s) plus the history of any
*.E**
Audit Log data files
containing the historical entries from the audit
log –
*.A**
Table 7.5 Text Data Filename Extensions
Note.
The analyzer's internal clock can be configured to
adjust automatically at the start and end of 'Daylight Saving
Time' periods.
Note.
Hourly files start exactly on the hour.
Daily files start at 00:00:00.
Monthly files start at 00:00:00 on the first of the month.