Functional description
5
gas-lab
Q1
Page 57
The next field is selected. Select the
entry you want to view via the
ordinal number
3
in this field.
As there is an unambiguous relation between date and ordinal number, the
associated ordinal number is indicated automatically after the date has
been entered (see above).
If you enter a different ordinal
number, the date in the second line of
the selection mask will be adjusted
automatically. (See diverent times in
the example)
Invoke the selected archive via the menu View (see next section).
3
Each individual measured variable of an archive group, which is filed by a device, has an
ordinal number according to the DSfG Regulations. The sequence of the ordinal numbers
is arranged in such a way that the very first archive entry receives the number 1. The
ordinal number for each further entry is increased by one.
For instance, ordinal numbers are needed for the polling of archive data via DSfG.