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YORK INTERNATIONAL40
OVERVIEW
This screen is accessed from the Trending screen.
This screen is used to congure the trending screen.
The parameters to be trended are selected from the
Common Slots Screen or Common Slots Master list
and entered as Slot Numbers for Data Points 1 through
6. The Y-Axis minimum and maximum values for each
parameter are entered as Data Point Min and Data Point
Max for Data Points 1 through 6. The interval at which
all the parameters are sampled is selected as the Data
Collection Interval.
DISPLAY ONLY
None
PROGRAMMABLE
Chart Type
Selects either CONTINUOUS or ONE SCREEN type
of graph.
Collection Interval
Selects the interval at which the parameters are sampled.
There are 450 data points displayed across the X-Axis
of the graph. Each point represents the instantaneous
value of the parameter. The user selects the time
interval between these points. This is called the DATA
COLLECTION INTERVAL, or the interval at which
the parameter is sampled. This interval is programmable
over the range of 1 second to 3600 seconds (1 hour), in
one second increments. The selected interval not only
determines the sample interval, but also the full screen
time display. The full screen time display is a result
of the selected interval in seconds, multiplied by the 450
data points. For example, if the Data Collection Interval
is programmed for 900 seconds, the parameter would
be sampled every 900 seconds, with the last 112.5 hours
(4.7 days) of data viewable on the screen. Therefore, the
selected interval is a compromise between resolution
and full screen time display. Select the desired Data
Collection Interval as follows:
1. Determine the desired time interval (in seconds),
between data samples.
2. Calculate the full screen time display as follows:
• 450 x Data Collection Interval = full screen
seconds
• full screen seconds / 60 = full screen minutes
• full screen minutes / 60 = full screen hours
• full screen hours / 24 = full screen days
3. Decide if the resultant sample interval and full
screen display meet the requirements. If not, select
a different sample interval.
TREND SETUP SCREEN
FIG. 16 TREND SETUP
00575VIPC
Operation