Graphical Format - GE DigitalFlow DF868 Programming Manual

Graphical Format

Displaying Data
PLOT
After choosing at the
sequence continues as follows:
5. Enter a maximum value for the Y-axis (vertical) scale that is larger
than the maximum expected reading and press
6. At the Y-Range prompt, press
[F2]
or press to graph both positive and negative Y values.
Y RANGE
After the is entered, the Model DF868 automatically
displays the chosen log file records in the specified graphical format.
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At any given time, the 120 records stored in one page of the log file
will be graphed on the display screen. The cursor, which is shown as
a vertical line that extends the full height of the graph window, can be
used to highlight any one of these records.
IMPORTANT:
Only the first of the three logged parameters is
displayed in the graphical format of the
submenu. Therefore, when creating a log file, be sure
to specify the parameter to be graphed at the
Value Logged
for details on creating a log file.
Because the times displayed in the
only, movement of the cursor may not result in a visible change in the
posted times. For example, if a
been programmed, two presses of either cursor movement key will be
required to change the displayed time by one minute.
FORMAT
prompt, the programming
[ENT]
[F1]
to graph only positive Y values
‰
Use the [←], [→] and
keys to select the desired option.
The options are listed in
Table 2-4 on page 2-10.
END
prompt. See Chapter 3, Logging Data,
LOG
graph are in whole minutes
TIME INCREMENT
of 30 seconds has
March 2008
.
[F1]-[F4]
LOG
1st
2-9