10.1.3 SEQUENCE with CHOICE

- new virtual structure: TYPE+"SubTypes" subtypes + sub structure definitions for choices

Example:

BACnetSpecialEvent::= SEQUENCE {

period CHOICE {

calendarEntry [0] BACnetCalendarEntry,
calendarReference [1] BACnetObjectIdentifier
},
listOfTimeValues [2] SEQUENCE OF BACnetTimeValue,
eventPriority [3] Unsigned (1..16)

}

Will be mapped to:

OPC UA Structure: BACnetSpecialEventPeriod (IsUnion = true)

calendarEntry: BACnetCalendarEntry
calendarReference: BACnetObjectIdentifier

OPC UA structure: BACnetSpecialEvent

period : BACnetSpecialEventPeriod
listOfTimeValues : BACnetTimeValue (ValueRank = Array)
eventPriority : UInt32