Protecting the Alarm Event
You can protect or clear alarm event by selecting the 'Protect Alarm Event' of graphic object shortcut menu related to analog/digital.
This function is set when you don't want to display the alarm event screen or alarm message such as <Figure 1> and <Figure 2>.
This function displays the alarm event screen and alarm message etc, when analog/digital value is alarm condition, but it doesn't remain for the data at alarm data view such as <Figure 1>.
<Figure 1> Example of Alarm Events Window
<Figure 1> is shown when you set the screen alarm of alarm priority as 'During Alarms' or 'Until Users Confirm'.
And, <Figure 2> is shown when you set the screen alarm, except 'None'.
You can set whether to display alarm message of <Figure 2> and entire alarm occur, at 'Config | Alarm'.
<Figure 2> Example of alarm message screen
This function not display the data at alarm event window such as <Figure 1>, and save the data about alarm occured.
But, if you set 'Protect Alarm Data' together, it doesn't save the alarm data.
Relate items)
Setting the Alarm Priority of Studio
Shortcut menu of Graphic Object Related to Analog