User`s guide

4-14 Display Terminals
The Trend Group screen shows a menu with the names of the
individual bits of the digital variable (i.e., logic variable byte), as
defined in the display configuration. The third line of the screen shows
the name of the trend variable.
Note: In Figure 4-6, the number 4 in the menu means that the
fourth bit was not given a name in the display configuration,
so its number was used as the default name. This may mean
that the bit is not used.