Siemens SIMATIC RTU3030C Operating Instructions Manual page 49

Retentive storage of important data on the SD card
The SD card is an exchangeable storage medium for storing various data safe from power
failure.
Note
Operation with SD card
It is strongly recommended that you only operate the RTU with an SD card, in particular
because an SD card is required in the following situations:
• Logging if an error occurs
• Upgrading the firmware version
The following data can be stored on the SD card.
● Configuration data
The configuration data is backed up on the SD card following every change in a
configuration file. Storing configuration data on the card serves the following purposes:
– Copying configuration data to other RTUs
– Device replacement without configuration PC
● Process data
If the Logging function is activated in the WBM. process data acquired by the RTU is
saved up on the SD card.
Certain or all process data can be stored on the card for a certain time or until the
maximum storage capacity of the SD card is reached.
● Diagnostics buffer entries
In the WBM you can configure that diagnostics buffer entries for serious events are saved
on the SD card.
The entire diagnostics buffer of the RTU can be saved manually on the SD card.
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
The configuration file can be edited and can be used to copy configuration data to
different RTUs, refer to the section Configuration (Page 99).
If an RTU needs to be replaced for maintenance purposes, by transferring the SD card
from the old to the new RTU, the configuration data can be made available to the new
RTU. In this case, you do not need a configuration PC.
LEDs, connectors, buttons, card slots
2.5 Slots for SIM card and SD card
49