Editable values are stored either in RAM or a nonvolatile flash memory. Values stored in the flash memory are in effect also after a reboot.
Some parameters have an edit-copy. If editing is cancelled, the values with an edit-copy are immediately restored to the original value. The values without an edit-copy, such as string values, are restored to the original value only after a reboot even though the edited value is not stored in the flash memory.
Click Write to IED after editing parameter values to put the values into protection relay's database for use.
Figure 1. Writing values to merging unit
The values are not stored to the flash memory.
Click Commit to write the values to the flash memory.
Click Reject to cancel saving settings.
If the parameter has an edit-copy, the original parameter value is restored.
If the parameter does not have an edit-copy, the edited parameter value remains visible until the protection relay is rebooted. However, the edited value is not stored in the nonvolatile memory and thus the reboot restores the original value.
Figure 2. Committing changes
Note: Committing values takes a few seconds.
Note: If the values are not committed, they are not taken into use and they are lost after a reboot.