Archive File Types; Channel Data Files; Filename Example; Log Files - ABB SM1000 User Manual
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- User manual (134 pages) ,
- Replacing instructions (8 pages) ,
- Installation instructions manual (8 pages)
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3.4.4 Archive File Types
Archive files created by the instrument are given filenames
automatically. Each type of archived file is given a different file
extension:
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Note. Totalizer files are created only if the totalizer
option is fitted.
3.4.5 Channel Data Files
Channel data files can be configured to contain data gathered over
a predefined period of time using the 'New File Interval' setting.
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Note. The New File Interval is set in the Configuration
level – see Section 4.5.6.
In addition to new files being created according to the New File
Interval selection, they are also created in the following
circumstances if automatic update is enabled and the media is
on-line or if a manually triggered update is in progress:
•
The instrument's power is lost then restored.
•
The instrument is taken offline and the archive media
removed, replaced or refitted.
•
The instrument's configuration is changed.
•
One of the current files exceeds the maximum
permissible size.
When one of these conditions occurs, new channel 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.
– if the original file had an extension of .*D00, after one
Example
of the above events a new file will be created with the same
filename but an extension of .D01.
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. 1
3.4.6 Filename Example
'New file interval' set to hourly, filename tag set to 'Process
Group 1'; date is 10th October 2000; 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
h t
e
file:
, s
09_00_10Oct00_Process_Group_1.d00
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s i
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09:12am Power interrupt occurs
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09:13am Power restored and new file created:
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09_00_10Oct00_Process_Group_1.d01
10:00am New file created in which all data recorded between
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10:00 and 10:59:59 is archived.
10_00_10Oct00_Process_Group_1.d01
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Note.
•
Hourly files start exactly on the hour.
•
Daily files start at 00:00:01.
•
Monthly files start at 00:00:01 on the first of the month.
3.4.7 Log files
The Alarm Event, Totalizer and Audit Logs are each archived into
one file. The filenames have the following formats, with the date
n
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and the time indicating the first entry in the file:
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If one of the archive log files becomes full (>64000 entries) a new
file is created with an extension incremented by 1, e.g. a01, e01
etc.
Note. Totalizer logs are created only if the totalizer
option is fitted.
3.4.8 Online/Offline
Before data can be archived to external media, the external
media must be placed on-line and one or more archive file
enables must be set.
•
External archive media is placed on-line automatically
when inserted.
•
External archive media is set on-line and off-line in the Set
up menu – see Section 3.3.
•
To avoid loss of data, external media must be set off-line
before removal.
Note. Data stored in the internal memory buffer can
still be stored to the archive media when the archive media
is placed on-line again (providing it is not off-line so long that
the un-archived data in the internal memory is overwritten).
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27
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