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Activate - method of the PmAlarmItem object

Alarm item activation.
Empty Activate([String sComment], [Date tTimeOn])
sComment[optional] (String) The text comment that is stored into the data together with the activated alarm item (it is enabled on the "Storage" tab).
tTimeOn[optional] (Date) The activation time of the alarm.
If not set, then the computer current time is used.
Calling the Activate method over the active alarm has no effect. An inactive alarm is activated. The behavior of the alarm during the activation is specified in the "Inactivate type" configurator. If the alarm is activated without parameters, then the simplier way can be used by writing the value true into the Active property.
The method is synchronous, it means that it is processed immediately by the alarm subsystem. Nevertheless writing the history to disk is asynchronous, it means that this method passes the request for writing to the history to the alarm subsystem, it is placed into the queue of requests and it is processed later by the alarm subsystem.
See also:
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var oAl = pMe.Pm("/Alarm");
var oAlItem = oAl.Item("Temperature");
PROMOTIC 9.0.28 SCADA system documentation MICROSYS, spol. s r.o.

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