Keywords

A keyword is a preset — a screen’s parameters saved under a name. Rather than choosing a date range, an interval and a calculation type every time, an operator picks the preset from a list and the screen sets itself up accordingly.

Fields

Field	Description
Type	Which screen the preset belongs to
Key	The preset’s name, max 100 characters
Dsc	Description, max 255 characters
Active	Whether the preset appears in the list

Types

Type	Where it appears
Trends	The Trend Graphic screen
Reports	The Report screen
Logs Activity	The Log screen

The type decides where a preset is offered: the Trend Graphic lists only those of type Trends.

What is stored

A preset stores the parameters of the screen it belongs to. For the Trend Graphic those are:

Parameter	What it does
Start date	Where the chart begins
End date	Where it ends
Interval	The sampling interval in seconds; giving one turns the automatic interval off
Calculation type	Mean, maximum, minimum and the like

Picking the preset from the list applies these to the screen.

Think of the name and the description together

A preset is listed as key: description. The description is therefore not decoration — it is half of what the operator reads while choosing. A pair like “NIGHT: previous night 22:00–06:00, 5-minute mean” is far more useful than “NIGHT” alone.

A malformed preset is ignored silently

If a preset’s contents cannot be read, the screen does not raise an error — it simply does not apply it. That is why a preset can look as though it changed nothing.

Related

• Trend Graphic — where presets are used
• Languages — interface text