Mitsubishi Electric melsec q00ujcpu User Manual page 306

(3) LEDs indicating backup status
The LEDs on the front of the CPU module indicate backup status.
Value stored in
Backup status
SD690
Backup start preparation
2
H
completed
3 Backup in execution
H
4 Backup completed
H
FF Backup error
H
(4) Error cause of backup
When backup is not normally completed, an diagnostic error is not detected. In that case, the error cause is
stored in SD689(Backup error factor) and the error response is returned to GX Developer.
Error
Value stored
response
in SD689
number
100 -
H
200 -
H
300 -
H
400 -
H
500 -
H
503 -
H
504 -
H
510 -
H
*1 *2
600 4335
H H
*1 *2
601 410A
H H
*1 *2
602 4336
H H
*3
4082 ,
H
-
*4
4330
H
*2
-
4333
H
*1: Only when data are backed up with contacts
*2: Only when data are backed up from GX Developer
*3: Only when data area backed up from another boot source.
*4: Only when data area backed up from the same boot source.
Table6.53 LEDs indicating backup status
MODE: Flash (green), BAT.: Flash (green)
The color changes at intervals of 800ms as follows.
MODE: Flash (green), BAT.: Flash (green), BOOT: Flash (green)
MODE: Flash (green),USER: MODE: Flash (red), BAT.: Flash (green)
Table6.54 Error cause of restoration
Restoration started while a memory card was not mounted.
Size of data to be backed up exceeds the capacity of mounted memory card.
Write protection has been set to the memory card.
Writing to the memory card was not normally completed.
Reading from a drive storing backup data was not normally completed (program memory read error).
Reading from a drive storing backup data was not normally completed (standard RAM read error).
Reading from a drive storing backup data was not normally completed (standard ROM read error).
Reading from a drive storing backup data was not normally completed (system data read error).
Backup preparation started while latch data were backed up to the standard ROM.
Backup preparation started while data were written in the RUN status.
Backup preparation started while a FTP client connected a FTP to the CPU module in FTP connection.
Backup preparation or backup started while another backup was in execution.
Backup started while the CPU module was in "Before backup start" (SD690 = 0).
LED indication
: Flashing (green)
: On (red)
: On (green)
Error cause
CHAPTER6 FUNCTIONS
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