Mitsubishi Electric MELSEC Q Series User Manual page 476

9 TROUBLE SHOOTING
Error
Error name
code
System setting file read
0301h
error
Dial-up setting file read
0302h
error
0303h PPP negotiation error
DHCP parameter
0304h
acquisition error
0305h
0306h
System error
0307h
0308h
Modem initialization
0310h
error
Addition command
0311h
error
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Error definition
Failed to read the system setting
file. (The setting file is destroyed.)
Failed to read the dial-up setting
file. (The setting file is destroyed.)
Failed in authentication at the time
of dial-up connection.
Failed to obtain the network
parameter data from the DHCP
server when "Obtain an IP
address automatically." is set for
LAN connection.
Failed to issue AT command for
modem initialization, at the time of
dial-up connection.
Failed to issue the Additional
command (AT command) at the
time of dial-up connection.
(From the previous page)
Corrective action
 After initialization of the module is
complete (Refer to Section 4.13),
make the system setting (refer to
Section 4.6.3).
 After initialization of the module is
complete (refer to Section 4.13),
make the dial-up setting (Refer to
Section 4.6.4).
 Check the dial-up setting
(whether the user name and
password are correct).
(Refer to Section 4.6.4)
 Check the power supply of the
modem, cable and line status.
 Check the system setting
(whether "Obtain an IP address
automatically." has been
selected).
(Refer to Section 4.6.3)
 Check the status of connection
with the DHCP server.
 Check the cable.
 Check the DHCP server setting.
 System error ( 1)
 Check the power supply of the
modem and cable status.
 Check the dial-up setting
(whether the communication
speed matches the modem
specifications).
(Refer to Section 4.6.4)
 Check whether the additional
command set in "AT command
additional setting" of the dial-up
setting is applicable to the
modem to be used.
(Refer to Section 4.6.4)
(Continued on the next page)
MELSEC-Q
Error type
Stop
Stop
Continue
Continue
Stop
Continue
Continue
Continue
Continue
Continue
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