Adding a pressure trend to the overview page: live chart or tag report?

[HMIDesign]

Operators on our boiler house overview page currently see only numbers for steam pressure and feedwater temperature. They asked for a small chart next to the values, so they can see whether the pressure is rising or falling.
I found the Graphic component in the editor, but I'm not sure if it shows only live values or also history. Ideally they would see the last hour on the overview, and maintenance would like to look at a whole week when analyzing a problem. What is the right way to do this in Omnivex SCADA?

[Technical Support]

There are two tools for this, and they complement each other.
1. Graphic (trend) component on the page – for operators
In the editor, add a Graphic component (shown as the trend component in the documentation) to the overview page and assign the steam pressure and feedwater temperature tags in its settings in the Properties Window. Set colors and axis ranges that fit the process, so a change is visible at a glance. Keep the chart small and focused on two or three signals; too many lines make it hard to read.
2. Tag Report with graphic view – for analysis
For a week of data, use Insert > Report Management > Tag Report:
1. Select the tags and click Start.
2. Choose Interval of time with start and end date, or Last with a period.
3. Select View Graphic or View Table/Graphic.
4. Export as PNG, XLS, CSV or PDF if needed.
Requirement for history
Historical values exist only for tags with Log Status = Periodic. Choose the Log Time according to the analysis you need: for pressure trends, a few seconds is usually enough; a very short period mainly fills the database.
Tip
If maintenance uses the same week view regularly, save it with Create Report, then it is available under Saved Reports and can be started with one click.
Documentation: https://greensoft.ai/documentation/o...ser-interface/