If a power failure occurs while the trending is running, the trending stops. When power is restored,
the last screen of data that was collected is displayed on the trending screen. To begin a new trend
screen, press Start.
Note: A red screen with the words TREND MAX MUST BE > TREND MIN appears if the Y-axis
minimum has been programmed to a value that is greater than the Y-axis maximum for any
parameter. If this appears, navigate to the Trend setup screen to change the values.
Table 97: Programmable fields
Button Description
Start
Access level required: Operator.
Functions:
• Clear the graph
• Start a new graph
• Set the time of day
• Begin trending
This button is only available if trending is stopped. If the selected chart type is triggered
and trigger action is set to start, data collection cannot begin until the triggers have been
satisfied and any selected trigger delay has elapsed. Otherwise, data collection begins
immediately.
Stop
Access level required: Operator.
Stops the trending. The trend data is frozen on the display until another graph is started with
the start button. The stop button is only available if trending is running.
Print
Prints the data on the trend screen in tabular format. If set to existing, a snapshot of the
data presently on the screen is sent to the printer. If set to new, all data collected after
pressing this button is sent to the printer as it is collected. If set to disabled, no data is sent
to the printer. See Acceptable printers for printout examples.
Data Select
Displays all trended data points simultaneously or select a single trended data point for
display, hiding the other data points. Selections are All Data or Data Point X (1-6).
Y-Axis
Toggle the Y-axis labels of the graph. Each button press changes the label to another of the
selected parameters.
X-Axis
Toggle the X-axis labels of the graph. Each button press alternates the scaling between time
of day and elapsed time, in 24 h format. The elapsed time scaling is the time elapsed since
the start button was pressed, starting the trending.
Table 98: Navigation buttons
Button Description
Home Navigates to the home screen
Trend Setup Access level required: Operator.
This button appears if trending is stopped. It navigates to a subscreen where you can
configure the trending display.
99YVAM with OptiView Control Center
To Next Page
Loading...
