Mitsubishi Electric MELSEC iQ-R Series User Manual page 57

If there is no free folder number
If there is no free folder number (001 to the upper limit set in the saving detail setting), processing is performed according to
an operation selected in "Operation at Saved Data Upper Limit" in the saving detail setting as follows:
*1 The INFO LED turns ON in either of the following cases. The factor can be checked in 'INFO LED lighting factor' (Un\G12) of a recorder
module/camera recorder module. (Page 216 Module status area (Un\G0 to 20), Page 269 Module status area (Un\G0 to 20))
There is no more free folder number after saving a recording file.
Saving a file failed because there was no free folder number.
■When selecting "Save data by deleting the one with the oldest timestamp"
A recording file with the oldest time stamp
*1 If there are multiple recording files with the same time stamp, a recording file with the smallest folder number is deleted.
*2 A recording file is not deleted if its folder number is out of the range of 001 to the upper limit set in the saving detail setting.
Ex.
Upper limit set in the saving detail setting: 5
Stored file: Files with the folder numbers 001 to 005
Time stamp of a file
Old
002 001
002
001
Ex.
Upper limit set in the saving detail setting: 5
Stored file: Files with the folder numbers 001 to 006
Time stamp of a file
Old
006 002
Not deleted
002
006
Precautions
A recording file being read in GX Works3 may be deleted. To avoid this, select "Discard Data and Continue Sampling."
*1*2
is deleted, and a new file is saved with the folder number of the deleted file.
New
003
005 004
005 004 003
001 005 004
005 004
001
002
New
003
003 002
*1
1 FUNCTIONS
55
1.1 Recording Function
1