19 DATA LOGGING FUNCTION
19.5 Details of Specifications
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19
Switching to a storage file
The data collected by data logging is temporarily stored in a stack file that resides in the SD memory card. The stack file can
be switched to a storage file to free the space in the SD memory card.
File switching works as follows:
1. The CPU module writes collected data into a stack file (such as LOG01.BIN).
2. It changes the file name when the storage file switching condition is met.
* 1
3. It creates a new stack file.
4. It continues to write collected data into the newly created stack file.
*1 The file name format can be customized. (Page 874 Save)
The file number of the most recent storage file is stored in the special register (Latest storage file number).
CPU module
CPU module
LOG01.BIN
Stored file
Rename
LOG01.BIN
Stored file
(New file)
LOG01_00000001.BIN
Saved file
Device data sampling
Device data sampling
File switching
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