York YZ MODEL A - FIGURE 35 - Trend Setup Screen

JOHNSON CONTROLS
82
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
FIGURE 35 - TREND SETUP SCREEN
LD26756
PROGRAMMABLE
PROGRAMMABLE
BUTTON ACCESS LEVEL DESCRIPTION
Chart Type Operator
Selects CONTINUOUS, ONE SCREEN or TRIGGERED. When the Chart Type
is set to Triggered, the Triggers button will be displayed providing access to the
Advanced Trend Setup Screen.
Collection
Interval
Operator
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 dis-
play. The full screen time display is a result of the selected interval in seconds,
multiplied by the 450 data points. To select the desired Data Collection Interval:
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.
This screen is used to configure 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.