Alarm History
Alarm History component
Section titled “Alarm History component”
The alarm history shows what has already happened, as opposed to the Alarm List, which shows what is happening now.
It lists events, not alarms, so a single alarm usually appears several times - once when it was Raised, once when it was acknowledged (Ack) and once when it Returned to normal.
How many entries the runtime keeps is a project setting, not a component one: see Alarming.
Features
Section titled “Features”Configuration
Section titled “Configuration”Show search - shows a search box, so the operator can find an entry by text.
Show filters - shows the filter controls above the table: priority, event, category and area. The number of matching records is shown on the right.
Page size - how many entries are shown per page. Pagination controls appear beneath the table.
Columns
Section titled “Columns”The table shows the Timestamp, the Priority, the Event that occurred, the Message, and the alarm’s Category and Area.
Alarm filter
Section titled “Alarm filter”Every alarm component shares these three properties. They decide which alarms this component shows; they never change the alarms themselves. An empty value means “show all”.
Areas - show only alarms from these areas. Add one entry per area.
Category - show only alarms of this category. The options come from the connector’s own category table, so they cannot drift from the values the filter compares against.
Min priority - show only alarms at or above this priority.
Alarms are raised by the runtime, not by the HMI — see Alarming.
The style properties define the look of the component.
Row height - the height of each row in pixels.
Header height - the height of the header row in pixels.
Each priority - Critical, High, Medium and Low - has its own background and text color. A hex value can be input in one of the formats:
#RRGGBB#RRGGBBAA#RGB#RGBA
Where:
R=red color componentG=green color componentB=blue color componentA=alpha (transparency) component
Alternatively, the integrated color picker can be used to visually pick a color:
Header background and Header text - the colors of the header row.
Background and Row text - the colors of the table body.
Border color - the color used for the component border.
Opacity - controls the transparency of the component.
Position
Section titled “Position”The position section contains properties which affect the position and size of the component. These can be changed by dragging and resizing the component with the mouse, or directly, by manually entering the values:
Left - distance from the left edge in pixels
Top - distance from the top edge in pixels
Width - component width in pixels
Height - component height in pixels
Typography
Section titled “Typography”Font size - the size of the text inside the component.