Eaton easyE4 Manual page 584

7. System settings
7.14 Retention function
580
These ranges should be used exclusively for values that are
required in order to be able to start the system back up after a
restart. Please keep potential unforeseen and/or undesirable
consequences in mind!
Retention bytes will show the amount of memory needed as you enter the values you
want.
Check whether there is enough memory.
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