> For the complete documentation index, see [llms.txt](https://docs.videc.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.videc.de/acron-9.3/en/anlagenkonfiguration/berichte/formular_berichte-vorlagen/alg-algr.md).

# Alert variables and alert groups

Display of an active or inactive filter

## Alert types

The nature and assignment of the alert types depend on the system delivering the alerts.

#### HiHi

The alert is triggered when its start value is exceeded.

#### Hi

The alert is triggered when its start value is exceeded.

#### Lo

The alert is triggered when the value falls below its start value.

#### LoLo

The alert is triggered when the value falls below its start value.

#### Dev1/Dev2

The alert is triggered by a level 1/2 deviation.

#### Modf

The alert is triggered by a modification.

#### Disk

The alert is triggered by a discrete modification (change from 0 to 1 or 1 to 0).

#### Opr

The alert is triggered by a change of user (control system user).

#### Dde

The alert is triggered by the communication of the DDE interface.

#### Sys

The alert is triggered by the system.

#### Only alerts beginning in the time frame

Only generate alerts beginning in the selected time range (in the Event area of the Reporter).

#### Active alerts only

Only generate alerts that are still active in the selected time range (in the Event area of the Reporter).

#### Character string in identification

Character string that must occur in the variable name as a means of filtering alert variables.

#### Control system user at alert onset

Name of the control system user as a means of filtering alerts that occurred for that user.

#### Acknowledged by control system user

Name of the control system user as a means of filtering alerts acknowledged by that user.

#### Priority from/to

If only a 'from' value is entered, all alerts greater than or equal to that value are displayed.

If only a 'to' value is entered, all alerts less than or equal to that value are displayed.

Note

If a 'from' and a 'to' value are entered, all alerts within the range are displayed.


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