National Instruments BridgeVIEW User Manual
Page 167
Chapter 6
Historical Data Logging and Extraction
6-16
© National Instruments Corporation
The HTV displays the trends for the Powder, Mixer, Liquid and
Product tags. The Available Data display shows the start and stop
timestamps of the logged data. The status of the HTV is displayed on
top of the Historical Trend. You can see it change from Accessing Disk
to Running. The legend to the right of the Historical Trend shows the
tag names and the plot colors, as they appear on the trend and in the
scales.
3.
View the first five minutes in the data set by clicking on the first scroll
button in the set below the Historical Trend. The beginning of the data
is centered in the display.
4.
Scroll through the data set using the other buttons below the
Historical Trend.
5.
The scales to the left of the Historical Trend show the minimum and
maximum of the Mixer and Powder tags. To view the scales for the
other tags, click on one of the scales. You can see the color and tag
name in the display above the scale change. As you click, it rotates
through the list of tags displayed in the HTV.
6.
To zoom in on the data, select the magnifying glass from the palette,
and click and drag over a section of the trend.