System Time - Siemens LOGO! CMR2040 Operating Instructions Manual

Configuration (WBM)
5.6 System
Naming conventions for the file names ad file system
File system
Files written from the CMR to the SD card meet the DOS or 8.3 format. File names are
structured according to the following pattern:
<1...8 characters>.<1...3 characters>
Directories are also displayed in the DOS format (up to 8 characters). Note that when saving
files with more than 8 letters that the name is truncated after 8 characters.
Naming conventions for the file names
The file names are structured according to the following scheme:
● Configuration files
Files with configuration data of the CMR:
*.CFG
– The file "default.cfg" is created automatically by the CMR and updated with every
– The file "user.cfG" is a configuration data file that you saved manually.
For information on saving and the meaning of the files refer to the section Configuration
(Page 77).
● Diagnostics buffer file
File with diagnostics buffer entries of the CMR:
diagbuf.txt
● Other files
Files that you yourself save on the SD card:.
*.*
5.6.4

System Time

In this tab, you make the basic setting for the time of day and specify the following:
● The time-of-day synchronization method and the intervals at which the time of day is
synchronized.
● The automatic daylight saving time switchover
● The forwarding of the CMR time of day to the BM
Note
The time of day is reset during a restart. To have the current time, you always need to use a
time-of-day synchronization method.
When using certificates, note the information on the time-of-day in the section Requirements
for use (Page 18).
72
change to the configuration.
LOGO! CMR2020,
Operating Instructions, 10/2016, C79000-G8976-C356-03
LOGO! CMR2040