Deadband

This property specifies a range between the High_Limit and Low_Limit properties in which Present_Value must lie for a TO-NORMAL event to be generated.

The following conditions apply to the event generation:

• Present_Value must be below the High_Limit minus deadband and
• Present_Value must exceed the Low_Limit plus deadband and
• Present_Value must remain within this range for a minimum period specified in the Time_Delay property, and
• either the HighLimitEnable or the LowLimitEnable flag must be set in the Limit_Enable property, and
• the TO-NORMAL flag must be set in the Event_Enable property.