Text Format Log Files; Text Format Data File Examples; Text Format Data File Digital Signatures; Text Format Data Verification And Integrity - ABB SM1000 User Manual

3.5.3 Text Format Log Files

The Alarm Event and Totalizer Logs for each Process Group and
the Audit Log are archived into individual files. The filenames are
formatted as shown in Table 3.4 with the date and the time
indicating the first entry in the file.
L o g F e l i
A r a l m E e v t n < h o r u m n i > < d
T o a t z i l r e < h o r u m n i > < d
A u d t i < h o r u m n i > < d
* F r o m t a e t d a c c o d r n i g o t h t e D '
C o n g i f u a r o i t n – s e e S c e o i t n . 4
Table 3.4 Log File Formats
If one of the archive log files becomes full (>64,000 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.
New text format log data files are also created when the daylight
saving period starts or ends.
Files containing log data generated during the daylight saving
period (summertime) have '~DS' appended to the filename.
F e l i n a m e
, d m m , y y * > < p o r e c s s g o r u p a t
, d m m , y y * > < p o r e c s s g o r u p a t
, d m m , y y * > < n i t s u r m e t n a t g > a .
a e t f r o m a ' t s t e n i C o m m o n
. 4 . 1
Fig. 3.4 Channel Data File Sample – Text Format
3.5.4 Text Format
Data File Examples – Figs. 3.4 to 3.7
Text format archived data is stored in a comma separated value
(*.csv) format so that it can be imported directly in to a standard
spreadsheet e.g. Microsoft Excel™ and Lotus 1-2-3™. The files
can also be read as an ASCII text file by a text viewer. When
imported into a spreadsheet, the files appear as shown in
g > e . 0 0 Figs. 3.4 to 3.7.
g . > 0 t 0
Alternatively, detailed graphical analysis of the data can be
0 0
carried out on a PC using the Company's DataManager data
analysis software package.
3.5.5 Text Format
Data File Digital Signatures – Fig. 3.4
A digital signature file is created for each channel data file using
the same filename but with a *.S** extension. The file contains a
unique 'fingerprint' of the contents of the data file that can be
used to prove if the data has been tampered with or corrupted.
Data validation can be carried out on a PC using the Company's
DataManager software package.

3.5.6 Text Format Data Verification and Integrity

When data is saved to the archive media it is checked
automatically to verify that the date value stored on the media
matches exactly the date value stored in the internal memory.
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