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AlarmHysteresis Property

Gets or sets the hysteresis used when clearing alarms. This value is only relevant in greater than (or equal) and less than (or equal) operations.

Namespace: GSF.TimeSeries
Assembly: GSF.TimeSeries (in GSF.TimeSeries.dll) Version: 2.4.207-beta
Syntax
public double? Hysteresis { get; set; }
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Property Value

NullableDouble
Remarks

The hysteresis is an offset that provides padding between the point at which the alarm is raised and the point at which the alarm is cleared. For example, in the case of the GreaterOrEqual operation:

  • Raised: value >= SetPoint
  • Cleared: value < SetPoint - Hysteresis

The direction of the offset depends on whether the operation is greater than (or equal) or less than (or equal). The hysteresis must be greater than zero.

See Also