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Slowmoncon Data Browser

See also: How to get data out of the archive in your own program

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The "Data Browser" used in the MicroBooNE slow monitoring and control displays is the standard Control Systems Studio data browser.

There are two standard ways of using it.

  1. On any panel on which a quantity is displayed, right-click on the quantity, and select "Open Data Browser". A new data browser window will be opened containing a chart of past history. (Note 1)
  2. Or, if you know the name of the EPICS variable you want to plot, use the CSS menu, "Trends" item, to open a new Data Browser window, and use the green "+" icon to add new variables.(Notes 1,2)

Notes:

Note 0: If prompted to "Enter the secure storage password", enter the DocDB password.

Note 1: The default horizontal and vertical axis ranges are often not what you want. Open the "Value Axes" option panel to set the vertical range explicitly or to select auto-scale. Open the "Time Axis" option panel to set the horizontal range. You can get to these option panels using the wrench-and-hammer icon, or the Properties panel.(***)

Note 2: If there is no menu bar at the top of the Control Systems Studio window, you may be in "full screen" or "compact" mode. Use F11 or F8 to get out of that mode.

Note 3: If there is no Properties panel shown, you may need to switch "Perspective" using the "Window|Open Perspective|Other" menu item, and choose "Data Browser".

How to get data out of the data browser interactively

Once you have a data browser open, the standard CSS "Properties" tab will have an additional tab labeled "Export". This is what you want. Please experiment with the options to see the different types of results before relying on it to do what you want.

Note that when you export data from the Data Browser, you will get both archived data from before you opened the data browser and "Live Data" acquired while you had the Data Browser open. The latter has the best possible resolution in time and space, while the archived data usually has some reduced level of sampling.

See also: How to get data out of the archive in your own program

An annotated history display

The image below shows three different data browser windows in one display. (The text and lines in dark purple have been added.) Note how the display retrieves data stored in this archive database, which is sampled only when the value changes by more than a certain "deadband", then adds "live" data sampled continuously by the interactive data browser window as long as the window is open.