When the [Alarm Type] is [Extended], the
accumulated time and number of occurrences are not saved in backup
SRAM.
When using GP-4100 series, the frequency at
which alarm history data is saved to virtual backup memory is
defined in the [Common Settings] menu's [Alarm] editor, [Storage
Frequency] field.
The capacity of the backup memory (SRAM) or
virtual backup memory that can be used for Alarm History data
depends on the type of display unit and the space used by other
data. For details about backup memory (SRAM), please see the
following.
2.3 About the Display
Unit's Internal Data
To check the backup memory (SRAM) usage, from
the [Project (F)] menu, point to [Information (I)], select [Project
Information (I)], and then select [SRAM Information].
