Table 29 defines the ReadEventDetails2 structure. The structure is a subtype of ReadEventDetails. This subtype only adds the readModified Boolean. The description provided in 6.5.2.2 applies when readModified Boolean is set to FALSE. This updated structure can be used for all event retrieval operations.
ReadEventDetails2 is only valid for Objects that have the EventNotifier Attribute set to TRUE (see OPC 10000-3). At least two of the three parameters, numValuesPerNode, startTime, and endTime shall be specified.
Table 31 – ReadEventDetails2 Structure
|
Name |
Type |
Description |
|
ReadEventDetails2 |
Structure |
Specifies the details used to perform an Event history read. |
|
readModified |
Boolean |
TRUE for Read Modified functionality |
Its representation in the AddressSpace is defined in Table 30.
Table 32 – ReadEventDetails2 definition
|
Attribute |
Value |
|||||
|
BrowseName |
ReadEventDetails2 |
|||||
|
IsAbstract |
False |
|||||
|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
|
Subtype of the ReadEventDetails |
||||||
|
Conformance Units |
||||||