Gets or sets the numeric identifier of the data source for the HistorianID.
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![](../icons/collapse_all.gif)
SourceID is used for the determination of "global time" when that client option is in effect.
When "global time" is in effect, the historian returns the current data time for a HistorianID
based on the latest time received for all HistorianIDs with the same SourceID.
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Exception | Condition |
---|---|
ArgumentException | The value being assigned is not positive or zero. |