OPC Unified Architecture – Part 9: Alarms & Conditions
5.8.24.1 DiscreteAlarmType
The DiscreteAlarmType is used to classify Types into Alarm Conditions where the input for the Alarm may take on only a certain number of possible values (e.g. True/False, running/stopped/terminating). The DiscreteAlarmType with sub types defined in this document is illustrated in Figure 22. It is formally defined in Table 105.
Figure 22 – DiscreteAlarmType Hierarchy
Table 105 – DiscreteAlarmType definition
Attribute
Value
BrowseName
DiscreteAlarmType
IsAbstract
False
References
NodeClass
BrowseName
DataType
TypeDefinition
Modelling Rule
Subtype of the AlarmConditionType defined in clause 5.8.2.