SIREC D Display Recorder 7ND4000

Operation
3-4
VIEW BROWS 04/16/97 4:59:29 JO G M EN U
FILE RAM 04/16/97 4:59:29 EXIT
FINDV FINDT BROWS 04/16/97 4:59:29
EXIT
04/3 0/97 15:2 4:42 : M REC OFF
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103716MA
CURSOR LINE
CURSOR LINE
PAGE- 04/16/97 PA 4:59:29 G E+ P EN EXIT
Figure 3-3 Browsing Ram Flow Chart
a. General - Pressing the BROWSe button
puts a freeze on real time display and allows
you to scroll back in time to browse through
data that has effectively dropped off the screen.
The actual BROWSe buffer is dependent on
the memory options installed, the number of
traces being displayed and the effective chart
speed. With the standard buffer, a chart speed
of one inch per hour with four traces active, it is
possible to BROWSe back around 140 hours
(5 ½ days). Obviously if the data has been recorded
to disk, it is possible to use the PC and
the companion software to view data as far
back as the start of recording, irrespective of
how long that may be, within the constraints of
disk capacity. Browsing can be done horizontally
or vertically and is dependant upon the
Chart Direction in the Program Menu.
b. Browsing Memory (RAM) - Memory
browsing allows you to view historic data of the
pens currently trending on the display, without
affecting any real time data acquisition. Pressing
RAM brings up the BROWSe Button Bar
shown in the third button bar of Figure 3-3. A
cursor appears on the screen which can be
moved with the ↑ (UP Arrow) and ↓ (Down Arrow)
keys. Pressing these keys a single time,
moves the cursor up or down one sample,
holding these keys will cause the cursor to
move in 10 sample increments. To move about
more speedily, the PAGE- and PAGE+ buttons
moves the data forward or backward an entire
screen at a time. When browsing graphics, the
Status Bar at the top of the screen shows the
Time and Date stamp and actual value for the
trace data directly under the cursor. The PEN
button is used to toggle the data through each
trace if more than one trace is displayed. Press
EXIT to return to real time viewing.
c. File Browsing - File Browsing can only be
done if the Point File is a currently active point
on the recorder. Activating the File Browser is
done by pressing the BROWS button then the
FILE button and using the ↑ (UP Arrow) and ↓
(Down Arrow) keys to select the desired file to
brows, then press ENTER. Refer to Figure 3-4
for File Browsing Flow Chart. This has now activated
the File Browser.
Once the File Browser has been activated,
pressing the BROWS button causes the unit to
check the disk and then bring up a directory. If
there is more than one file per point, the files
will be displayed one under the other with an
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