Auto-Zone Control Systems Prism 2 Graphical Interface Technical Guide (Version 01J) - Manual (Page 14)

STEP 2: JOB-SITE SET-UP
Prism 2 Technical Guide 14
Export/Import to Selected Job-Site
Once you have completed setting up your job-site and have
performed a search for all installed units (see page 20) and have
given them names, you can revisit this fi eld which enables you to
copy job-site settings to another computer so you don’t have to re-
enter the information.
To export data, select the job-site you wish to export by highlighting
it and then select the Export Drive Location to store this information.
You can export to any form of removable media that your computer
is capable of writing to. Make sure that the media you choose is
supported by the computer you will be importing this data to! Click
the
<Export> button to initiate this procedure. Once the data is
stored, take the removable media to the other computer, insert it,
and select the Import Drive Location for that computer and the job
site list number (click in the Job-Site Selection List Box to make
this selection) and then click the
<Import> button. All installed
units and names should now appear on the Prism 2 Main Screen
when you exit the Job Sites Window.
Delete Job-Site
If you want to delete a job-site, highlight the job-site in the Job-
Site Selection Window so that its name appears in the Selected
Location fi eld. Then click the
<Delete Job-Site> button next to
the Job-Site List # fi eld.
A message will appear asking you if you really want to delete the
job-site. This is a precaution in case you click the
<Delete Job-
Site> button by mistake. Click <Yes> or <No> .
Auto-Logging
Auto-Logging Settings
Log Times
If you would like Prism 2 to automatically retrieve controller
trendlogs on a regular basis, click
<Log Times> from the Job Site
Window’s Top Menu Bar. The Auto-Log Retrieve Times Window
will appear. Select the times of the day you would like Prism 2 to
perform this function.
NOTE: You can force Prism 2 to start the Auto Logging
procedure at any time by making sure your communications are
On Line and then selecting < Start AutoLog> from Prism 2’s
Communications Menu.
How often you should
gather logs depends on the
shortest
logging interval
you have specifi ed on any
selected controller. Some
of the older families of
controllers support 60
rows of log data whereas
newer families have 120
rows. Each row of log data
contains a time and date
stamp and any relevant
data for the type of control
it performs.
For example, a Variable
Air Volume Box Controller
logs its Space Temperature,
Heating and Cooling
Setpoints, Supply Air, and
Damper Position in each
row.
If you entered the shortest log interval of 1 minute for a unit with 60
rows of data, you would need to retrieve data every hour to prevent
loss of log data. If you left the default log interval of 15 minutes,
then you could load the log data twice a day and not lose any data
since 15 minutes times 60 rows = 900 minutes of data (15 hours).
On a unit with 120 rows, that same 15-minute interval would yield
1800 minutes of data or 30 hours, which means you could retrieve
logs once a day without losing data. Don’t worry about overlapping
data if your logs exceed the auto-log interval. All duplicate data
is discarded and any fi les created for a single day are loaded as a
whole to create one log listing per day. Keep in mind that a time
and date stamped fi le is created every time you retrieve a log from
a controller, so unnecessary polling should be kept to a minimum.
If you retrieve logs every hour, then 24 fi les will be created for each
day of the year.