Industrial Automation - Basics - 6.2.2 IAggregateStatisticsType

6.2.2 IAggregateStatisticsType

The IAggregateStatisticsType is a subtype of the IStatisticsType Interface. The statistical data managed by Objects or ObjectTypes implementing this Interface is not rolling over, i.e. all data from the start of tracking the statistical data are considered, until the tracking gets reset. It is formally defined in Table 41.

Table 41 – IAggregateStatisticsType Definition

Attribute	Value
BrowseName	IAggregateStatisticsType
IsAbstract	True
Description	Base interface for managing statistical data that is not rolled over all data from the start of tracking the statistical data are considered, until the tracking gets reset.
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the IStatisticsType defined in 6.2.1, i.e. inheriting the InstanceDeclarations of that Node.
0:HasProperty	Variable	ResetCondition	0:String	0:PropertyType	O

ResetCondition describes the reason and context for the reset of the statistics, which is done without a trigger from an OPC UA Client, like calling the ResetStatistics Method. ResetCondition is a vendor-specific, human readable string. ResetCondition is non-localized and might contain an expression that can be parsed by certain clients. Examples are: “AFTER 4 HOURS”, “AFTER 1000 ITEMS”, “OPERATOR”. “OPERATOR” means, that an operator resets the statistics on a local HMI.

The InstanceDeclarations of the IAggregateStatisticsType have the Attribute values defined in Table 42.

Table 42 – IAggregateStatisticsType Attribute values for child Nodes

Source Path	Value	Description
ResetCondition	-	The reason and context for the reset of the statistics, which is done without a trigger from an OPC UA Client, like calling the ResetStatistics Method. ResetCondition is a vendor-specific, human readable string. ResetCondition is non-localized and might contain an expression that can be parsed by certain clients. Examples are: “AFTER 4 HOURS”, “AFTER 1000 ITEMS”, “OPERATOR”. “OPERATOR” means, that an operator resets the statistics on a local HMI.