What happens when you click the icon that looks like a small bar graph in the Historian Client Web tool?

Clicking the icon that resembles a small bar graph in the Historian Client Web tool activates the display of a Line Chart. This is because this specific icon is designed to visualize data trends over time, which is effectively represented through line charts. Line charts are particularly useful for analyzing continuous data, allowing users to see fluctuations in data values clearly and quickly.

The importance of using a line chart, in this context, lies in its ability to provide insights into the behavior of data points across a specified time period, making it easier to identify patterns, peaks, and troughs. Other visualization forms, such as tables or reports, do not convey the same instantaneous insights that a line chart offers, focusing instead on data presentation in a more static format. Thus, selecting the correct icon pertains directly to the visualization capabilities that enhance data analysis within the Historian Client Web tool.