This SensorWarningAlarmType is used if an additional sensor (e.g., a temperature sensor) measures a value that is out of the allowed range. This alarm is only used for sensors that are not involved in the geometrical measurement directly (e.g., a probe). Its representation in the AddressSpace is formally defined in Table 37.

Table 37 – SensorWarningAlarmType Definition

Attribute		Value
BrowseName		SensorWarningAlarmType
IsAbstract		False
References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the LimitAlarmType defined in OPC 10000-9, which means it inherits the InstanceDeclarations of that Node.
0:HasProperty	Variable		ErrorCode	0:String	0:PropertyType	0:Mandatory
Conformance Units
GMS SensorWarningEventType

The ErrorCode is used as the manufacturer defined error code. Often this is a numeric code whose meaning can be found in the manufacturer's documentation for the Geometric Measurement System.

It is supposed that any error message shown to users of the system is transmitted with the SensorWarningAlarmType in the Message Property inherited from the BaseEventType.