Omron NJ501-1 Series User Manual page 198

5 Troubleshooting
Event name SD Memory Card Invalid Format
Meaning The file format of the SD Memory Card is not FAT16 or FAT32.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_Card1Ready
Cause and Assumed cause
correction
The file format of the SD Memory
Card inserted in the CPU Unit is not
FAT16 or FAT32.
Attached None
information
Precautions/ None
Remarks
Event name SD Memory Card Restored or Formatted
Meaning An error was detected during the file system check and the file system was restored. Files may have been deleted.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The Controller power supply was
turned OFF while the SD BUSY indi-
cator was lit.
The power supply to the Controller
was interrupted momentarily while the
SD BUSY indicator was lit.
The SD Memory Card was removed
while the SD PWR indicator was lit.
The SD Memory Card is damaged.
Attached None
information
Precautions/ The error is detected at power ON or at a Controller reset only when SD Memory Card diagnosis at startup is enabled.
Remarks You can change the event level to the minor fault level. If you change the level to the minor fault level, the Recovery col-
umn above will be changed to "Error reset."
5-32
Source details
Observation Recovery
Continues. Operation
Data type
BOOL
Correction
Make sure that the correct SD Mem-
ory Card is inserted in the CPU Unit.
If an incorrect SD Memory Card is
inserted, replace it with the correct
one. If the correct SD Memory Card is
inserted, format it correctly before you
use it.
Source details
Observation Recovery
Continues. Operation
Data type
---
Correction
Check that the correct file is on the
SD Memory Card, or that the device
operates correctly. If the correct file is
not on the SD Memory Card, or if the
device does not operate correctly,
download the correct file to the SD
Memory Card. Cycle the power sup-
ply to the Controller or reset the Con-
troller and confirm that the system
operates correctly.
If this error occurs even though the
above problem does not exist, replace
the SD Memory Card and download
the correct files to it.
Event code 1003 0000 hex
None Detection
timing
--- Log category
SD PWR indicator is not lit. You can format the SD Mem-
ory Card from the Sysmac Studio.
Name
SD Memory Card Ready Flag
Prevention
Use an OMRON SD Memory Card.
Do not format the SD Memory Card
on a computer.
Event code 1004 0000 hex
None Detection
timing
--- Log category
If the file is deleted, normal user program operation may
not be possible.
Name
---
Prevention
Do not turn OFF the power supply
while the SD BUSY indicator is lit.
Take appropriate measures to ensure
that the specified power with the rated
voltage and frequency is supplied in
places where the power supply is
unstable.
Do not remove the SD Memory Card
while the SD PWR indicator is lit.
None
NJ-series CPU Unit Hardware User's Manual (W500)
At power ON, at
Controller reset,
or when SD
Memory Card is
inserted
System
At power ON or
Controller reset
System