Definition: Alarm

Alarms are edited in the table editor. They include the following functionality:

Structuring through alarm groups
Display of an alarm using a localizable text (multilingual display with dynamic process value integration)
Acknowledgement type and colour display can be set by referring to an alarm class
Acknowledgement feedback to the PLC via status and acknowledgement variable
Additional freely usable parameters (Parameter1, Parameter2, free parameters)
Extended function with reference to an alarm type: Several alarms can be linked to one event variable by referring to the alarm type. The interpretation includes both the evaluation of individual bits (bit block) and the evaluation of error codes (numerical).

Parameter name	Description of the
0-active	Alarm is triggered when the corresponding bit is set or reset.
Alarm class	Reference to the alarm class that defines the appearance and other functions of the alarm.
Bit number (Alarms module) Event variable	Defines the bit within the variable that triggers the function.
Bit number (Alarms module) Acknowledgement variable	Defines the bit within the variable that triggers the function.
Bit number (Alarms module) Status variable	Defines the bit within the variable that triggers the function.
Definition active	Determines whether the object definition is valid.
Event variable	Defines the name of the variable that triggers the alarm
Comment	Optional commentary on the object.
Name	Name of the object.
Parameter 1	Any text that provides additional information about the alarm
Parameter 2	Any number (e.g. unique alarm number) that provides additional information about the alarm
Priority	Determines the importance of an alarm.
Acknowledgement variable	Name of the variable with which an alarm can be acknowledged
Status variable	Name of the variable with which the status and the acknowledgement status can be determined
Text	Localisable text for the object.
Type	Specifies the alarm type with which the alarm definition is extended.