Siemens LOGO! CMR2040 Operating Instructions Manual page 34

LEDs, connectors, buttons, card slots
2.5 Slots for SIM card and SD card
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 SD card serves the following
purposes:
– Copying configuration data to other CMRs of the same type
– Device replacement without configuration PC
You will find information on storing the configuration data on the SD card in the section
Configuration (Page 77).
For information on device replacement refer to section Replacing the CMR (Page 137).
● 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 CMR can be saved manually on the SD card.
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The configuration file can be edited and can be used to copy configuration data to
different CMRs via the WBM.
If a CMRU needs to be replaced for maintenance purposes, by transferring the SD
card from the old to the new CMR, the configuration data can be made available to the
new CMR. In this case, you do not need a configuration PC.
LOGO! CMR2020,
Operating Instructions, 10/2016, C79000-G8976-C356-03
LOGO! CMR2040