SIREC D Display Recorder 7ND4000

B. Setting a Search Reference - Before
you begin a search, you have to decide which PEN
or point you are going to use as the search
reference, and which direction you wish to search
in. Use the PEN button to select the pen trace to
search. Each time this button is pressed, the next
pen is selected. The current pen is shown in the
status line at the top of the screen, together with
the value of the trace under the cursor and its
actual time and date stamp.
C. Setting a Search Direction - The search
direction is determined by the button to the left of
the PEN button. This button toggles between
BACK and FWD. BACK will search BACKWARDS
in time from the current cursor position (into older
data), while FWD will search FORWARDS in time
from the current cursor position (into newer data).
D. Initiating the Search - To initiate a search
press either the FIND> button to find the first point
GREATER than the search value, or FIND< to find
the first point LESS than the current search value.
Each time either of these buttons is pressed, the
next point that meets the search criteria is found.
Note that once a point is found, the next point to be
found will be the one that is after the first point that
does not meet the criteria. The search “hops”
across all other values so that you are not bogged
down finding useless information. Therefore if you
are searching for a point on a sine wave, for
example, you will find the same point on the same
phase of the wave (360° apart). Otherwise you
would find every point less than or greater than the
search point which could be every point in the
trend.
E. Search Results - The point that meets the
search criteria will be placed under the cursor near
the center of the screen. The search may take
some time, especially if searching a large disk file.
If no point is found the unit will display “No Point
Found”. The user can continue to search for other
points in the same direction or change direction
and search again. Once an acceptable point is
found, the user can enter the interactive browse
mode by first pressing the EXIT button to return to
the Browse mode button bar (Fig 3-20 above), and
then pressing the BROWS button.
Siemens AG C79000-G7374-C211-01
SIREC D Manual
Operation
3.4.5 INTERACTIVE BROWSE. The
interactive browse mode enables the user to
uniquely identify points on the screen by time, date
and value, and move around in time.
A. Entering Interactive Browse Mode -
Once the Browse source has been selected, FILE
or RAM, pressing the BROWS button again,
immediately or after a search or compress
operation, will enter the Interactive Browse mode,
and the Browse Button Bar shown in Fig 3-22
below will appear.
PA04/16/97 G E- PA4:59:29 G E + PE N
EX I T
Figure 3-22 The Browse Button Bar
B. Arrow Keys - The cursor appears near the
center of the screen and it can be moved with the ↑
(UP Arrow) and ↓ (Down Arrow) keys in the
Vertical View mode or with the �� (Left Arrow) and
�� (Right Arrow) keys in the Horizontal View mode.
Pressing these keys a single time, moves the
cursor one sample at a time, holding these keys
will cause the cursor to move in 10 sample
increments. As the cursor moves, the time and
date information is updated in the status window at
the top of the screen.
C. Page+ and Page- Keys - To move about
more speedily, the PAGE- and PAGE+ buttons
move the data forward or backward an entire
screen at a time.
D. Status Bar - When browsing graphics, the
Status Bar at the top of the screen shows the Date
and Time stamp and actual value for the trace data
directly under the cursor. Note that if you are
browsing Memory there will be an “M” in the right
hand corner of this line or if browsing Files, there
will be an “F” as follows:
F 07/27/96 17:03:06 point 1: 0.318 Volts
E. Pen Button - To see the actual pen data
value press the PEN button to toggle the data
through each trace if more than one trace is
displayed. As the data is toggled, the traces for all
pens but the selected one, disappear.
F. Exit Button - Press EXIT to return to real
time viewing from the RAM browser or to the
directory from the FILE browser.
3-11