Mitsubishi MELSEC-Q Series User Manual page 432

9 TROUBLE SHOOTING
Symptom
File cannot be
transferred to the Web
server module.
File cannot be
transferred from the
Web server module.
426 (Data connection
error) error occurs during
file transfer via FTP.
Symptom
Data cannot be backed
up onto the Compact
TM
Flash card.
Data cannot be restored
from the Compact
TM
Flash card.
TM
Compact Flash card
cannot be formatted.
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(8) Troubleshooting on FTP
Check point
The Web server module is not connected to
the network correctly.
The FTP server setting is not correct.
Check whether a file can be transferred to
the specified destination with commercial
FTP client software.
The FTP account is not correct.
The programmable controller CPU has been
powered on right after powered off.
When accessing by the Internet Explorer, the
user authentication screen was not
displayed.
FTP transfer has been executed with many
files specified at one time.
(9) Troubleshooting on data management and Compact Flash
Check point
TM
The Compact Flash card has not been
formatted.
The standard ROM or Compact Flash
is being accessed.
The standard ROM or Compact Flash
is being accessed.
TM
The Compact Flash card is being
accessed.
Corrective action
• Check the module status and network
connection status of the Web server
module. (Refer to (1), (2) in this section.)
• Check the FTP setting.
(Refer to Section 6.7.3)
• Contact the administrator of the FTP server.
• Check the FTP account assigned by the
Internet service provider.
• Power on the programmable controller a
few minutes after power-off.
• Enter the Web server module address as
follows:
[ftp://<User name>:<Password>@<Web
server module address or host name>/]
(Example) In the case of factory setting:
ftp://QJ71WS96:MITSUBISHI@192.168.3.3/
• Reduce the number of files to be transferred
at one time, and execute the FTP instruction
again.
Corrective action
• Format the Compact Flash
TM
• Wait until the access of the standard ROM
card
or Compact Flash
TM
• Wait until the access of the standard ROM
card
or Compact Flash
• Wait until the access of the Compact
TM
Flash card is completed.
MELSEC-Q
TM
card
TM
card.
TM
card is completed.
TM
card is completed.
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