Binary Format Stream Files; Binary Format Log Files; Daylight Saving; Binary Format Data Verification And Integrity - ABB Aztec 600 User Manual

Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers

7.6.2 Binary Format Stream Files

A new binary format archive file is created under the following
conditions:

When the current file for a stream does not exist on the
media card.

When the maximum permissible size (5 Mb) of the existing
data file is exceeded.

When the recording channel's configuration is changed.

When the daylight saving period starts or ends (stream
data files generated during the daylight saving period have
–DS appended to the filename).
Note. The analyzer's internal clock can be configured to
adjust automatically at the start and end of 'Daylight Saving
Time' periods.
Filename Examples
Example 1 – Start of daylight saving period:
Archiving is started at 01:45:00 on 30th March 2008 –
filename: 01450030Mar08Ch1_1AnlgAW633.B00.
Summertime starts at 2:00am on 30th March 2008.
The clock changes automatically to 3:00am.
The existing file is closed and a new file is created –filename:
03000030Mar08Ch1_1AnlgAW633~DS.B00.
The file '01450330Mar08Ch1_1AnlgAW633.B00' contains
data generated from
summertime starts).
The file '03000030Mar08Ch1_1AnlgAW633~DS.B00'
contains data generated from 03:00:00 (after summertime
starts).
Example 2 – End of daylight saving period:
Archiving is started at 00:15:00 on 26th October 2008 –
filename: 00150026Oct08Ch1_1AnlgAW633~DS.B00.
Summertime ends at 3:00am on 26th October 2008.
The clock changes automatically to 2:00am.
The existing file is closed and a new file is created –filename:
02000026Oct08Ch1_1AnlgAW633.B00.
The file '00150026Oct08Ch1_1AnlgAW633~DS.D00'
contains data generated from 00:15:00 to 02:59:59 (before
summertime ends).
The file '02000026Oct08Ch1_1AnlgAW633' contains data
generated from 02:00:00 (after summertime ends).
48
01:45:00 to 01:59:59 (before

7.6.3 Binary Format Log Files

A new binary format log file is created under the following
conditions:

When an existing (valid) binary file does not exist on the
media card.

When the maximum size (64000 entries) is exceeded.

When the daylight saving period starts or ends.

7.6.4 Daylight Saving

Files containing data generated during the daylight saving period
have '~DS' appended to the filename – see Section 7.5.4,
page 47 for examples of appended filenames.
Note. Binary format archive files created during the daylight
saving period (summertime) are compatible with the
database feature of Version 5.8 (or later) only of ABB's
DataManager data analysis software package.

7.6.5 Binary Format Data Verification and Integrity

When data is saved to the archive media it is checked
automatically to verify that the data stored on the media
matches exactly what is stored in the internal memory.
Each block of data in the channel data files has its own data
integrity check. This enables the integrity of the data stored on
the external media card to be verified when it is viewed using
ABB's DataManager software package.
The log files also contain built-in integrity checks enabling the
integrity of the data to be verified by the DataManager software.
7 Logging
IM/AZT6CR–EN Rev. J