Enum TimeType
TwinCAT provides four different timestamps. The Enum TimeType is used to distinguish between them.
Syntax
enum TimeType {
SystemTime = 0,
ExternalTimeHard = 1,
ExternalTimeMedium = 2,
ExternalTimeSoft = 3, // e.g. NTP
};Values
How the three external timestamp types are used in practice depends on application. The example below is merely a suggestion.
Name | Description |
|---|---|
ExternalTimeHard | Suggested use for hard offsets that have no drift |
ExternalTimeMedium | Suggested use for accurate offsets such as IEE1588 |
ExternalTimeSoft | Suggested use for general offsets, such as NTP |