7-2
September 2003
TM0048
LaserNET
Program User's Guide
b. For IIMs with more than one Detector, click on the button for a specific Detector. This opens the
Display and Control window for that Detector. Then follow the procedure for a Direct Detector Con-
nection.
c. If no Display and Control windows are open, selecting
History
from the main screen connects to
the Detector with the lowest address. The Smoke History screen will display the owner address in
the blue bar across the top.
3.
Off-line Connection
. Select
History
from the main screen.
7-1.2
Downloading Smoke History from a Detector
With LaserNET communicating with the Detector and the History window open, the Detectors smoke his-
tory that is stored in the Detector can be downloaded to LaserNET. It is recommended to download and
save the Detector's smoke history after any major event.
Figure 7-2. Download Button
1. Select
Options>Download
from the menu bar. Alternatively, select the Download button shown in
Figure 7-2.
2. The data download begins and a status box displays the progress of the download.
3. The download begins with the newest data and proceeds to the oldest.
4. The download can be stopped at any time by selecting
Options>Download
from the menu bar. What-
ever data has been downloaded will be displayed.
5. When the download is complete, the smoke-level graph will display in the history window, as shown in
Figure 7-3.
Notes:
A complete download should take approximately three minutes. The time remaining for the download
is shown in the status box.
If an alarm or fault condition is generated during the download, the download window is minimized
and LaserNET maintains a copy of the downloaded data.
If the history window is manually minimized during downloading, downloading continues and the
downloaded data is stored by LaserNET.
The smoke levels displayed will reflect the adjusted values if signal averaging or referencing are
selected as an option.
Figure 7-3. Smoke History Window With Data
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