Graphical Format - GE DigitalFlow GC868 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. 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 GC868 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.
In the typical graphical display shown, the first logged parameter
is shown to the left of the y-axis and there is a message line below the
graph that initially indicates the starting date and time of the current
page. Notice that most of the locator bar has been replaced by a status
line in standard video that shows the value, units and time of the
record at the current cursor location. However, there is still an inverse
video pointer at the far right of this line to indicate that additional
option bar choices are available.
Note: The date in the message line includes only the day and the
month (not the year), and the times in the status line and the
message line include only the hours and minutes (not the
seconds).
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
April 2008
.
[F1]-[F4]
LOG
1st
(VEL)
2-9