Emerson AMS Trex Device Communicator User Manual page 118

Field Communicator application
September 2021
3.26.3
118
1.800.561.8187
Chart type Description
Strip/sweep/scope Displays variable data with an x-axis of time.
A strip chart continually updates the chart, scrolling from right to left.
A sweep chart updates the window from left to right, and then updates the
window from left to right again, overwriting the oldest data. A vertical line is
used to separate the old and new data. When the data reaches the right
edge of the screen, the data is then plotted from the left edge of the screen
and the x-axis is updated.
A scope chart updates the window from left to right. When the data reaches
the right edge of the screen, the screen is cleared and the x-axis is updated.
Horizontal bar Displays data represented as bars from left to right.
Vertical bar Displays data represented as bars from bottom to top.
Gauge Displays a gauge chart, similar to an analog car speedometer.
Note
If a chart is displayed for an extended time period, the Trex unit may have decreased
response time due to the large number of data points in the chart.
Strip/sweep/scope chart
The strip/sweep/scope chart formats device data into a line chart that displays device data
over time. The labels and axis displayed are determined by the device manufacturer. Use
the drop-down list to select the variable you want to highlight.
The selected variable is displayed as a bold, solid-colored line. Other variables that share
the same source or same Y-axis appear as thin or dashed colored lines on the chart. The
colors are determined by the device description and may vary between devices. A vertical
line may be displayed in the chart to distinguish between the old and new data. The
vertical line advances as new data is displayed.
The time shown on the x-axis starts at the time the chart starts. The chart update rate is
determined by the device manufacturer. The default chart update rate is 1 second.
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