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SeaTrac Serial Command Interface Reference
Page 86
7.4.4. CID_SETTINGS_SAVE
The CID_SETTINGS_SAVE command is sent to save the current working RAM settings into
permanent storage, ensuring they are used next time the beacon is powered up.
The beacon uses EEPROM memory to permanently store the settings information, but
this has a lifetime endurance of between 10,000 and 50,000 cycles, after which its
data retention capabilities may start to degrade (below the guaranteed 5 year period).
For this reason, the beacon settings system allows quick and real-time parameter
changes to be made into working RAM, and only stored when required with the
CID_SETTINGS_SAVE command.
When designing a control system, ensure that settings are only stored infrequently and
when needed (i.e. not on a periodic basis that may reduce operating life).
If the communications baud-rate settings are accidentally changed, saved and the
device rebooted, it may not be possible to re-establish serial communications (without
trying all available baud rates).
An alternative is to use the magnetic reset-to-defaults function supported by the
beacon (although this will also reset calibration data) – see the beacon user manual for
further details.
Command Message Parameters
Parameter Type Description
MSG_ID CID_E Command identification code
(CID_SETTINGS_SAVE)
Response Message Parameters
Parameter Type Description
MSG_ID CID_E Command identification code
(CID_SETTINGS_SAVE)
STATUS CST_E Status code used to indicate if the command
executed successfully.
Valid values are…
 CST_OK – The command was performed
successfully.
 CST_FAIL - The settings could not be saved
successfully (a storage error may have
occurred).