Product specifications

Alarm Analysis Configuration
3BDS011222-510 B 141
For 800xA system version 5.0 SP1a and later versions, each alarm expression
receiving bad or uncertain data quality on subscribed properties will generate an
alarm representing bad quality. In this situation, when there are several alarm
expressions the system can have excess alarms during the system restart.
This behavior of alarm expressions can be configured. This configuration is valid
for 800xA system version 5.0 SP1a and later versions.
A new aspect BadQualityEventProperties is created in Service Structure >
Soft Alarms, Service.
This aspect contains the following properties that are used to configure the
behavior of alarm expressions receiving bad or uncertain data quality alarms.
• NotifyBadQualityEvent - This property is of data type Boolean and it
enables system alarm emission when data quality on input properties are
bad or uncertain.
• GracePeriod - This property is of data type Integer and it specifies the
delay (in milliseconds) during startup of the Soft Alarms service during which
system alarms will be suppressed.
Restart the Soft Alarms service after configuring the
BadQualityEventProperties aspect.