Chapter 6 Historical Data Logging and Extraction
© National Instruments Corporation 6-9 BridgeVIEW User Manual
on the data that is displayed. You can use the panning tool to display a
different section of data. The averages are updated automatically.
8. Save the VI as Historical Data.vi in the BridgeVIEW\
Activity directory.
End of Activity 6-1.
Historical Trend Viewer (HTV)
The HTV is a stand-alone utility that enables you to look at historical data
in your system. The HTV limits you to viewing no more than eight tags at
a time. If you want to look at more tags in a single historical trend, you
should build your own utility using the Historical Data VIs.
To start the HTV , select Project»Historical Trend Viewer…. The HTV is
shown in the following illustration.
Figure 6-2. Historical Trend Viewer