Mitsubishi Electric QJ71C24N User Manual page 344

11 TROUBLESHOOTING
Error code
Error
(Hexa-
decimal)
7F91
H
to
7F96
H
7F98
H
to
7F9A
H
7F9D
H
7F9E
H
7FA0
H
to
7FA3
H
7FA8
H
7FAA
H
System error
to
7FAD
H
7FAF
H
to
7FB2
H
7FB5
H
7FB6
H
7FB8
H
to
7FBC
H
7FC0
H
to
7FC4
H
Protocol setting data
7FC8
H
error
7FC9
H
to System error
7FCF
H
7FD0
H
Refer to the error code list for use of the modem function, and take corrective action. (Refer to Section 11.2.3.)
to
7FE5
H
7FE6
H
7FE7
H
Processing disabled
7FE8
H
Refer to the error code list for use of the modem function, and take corrective action. (Refer to Section 11.2.3.)
7FE9
H
7FEF Switch setting error
H
11 - 28
Description
 The OS of the Q series C24 detected
some error.
 There is an error in the protocol setting
that was edited in GX Configurator-SC
(Pre-defined protocol support function).
 The protocol setting data written to the
Q series C24N includes unsupported
function data.
 The protocol setting data written to the
Q series C24N is corrupted.
 The OS of the Q series C24 detected
some error.
 Remote passwords do not match.
 The remote password is not registered.
 The remote password processing
command was received on the interface
side where the modem function is not
used.
 The GX Developer connection is
selected in the communication protocol
setting on the corresponding CH.
 The number of remote password
disagreements exceeded the value
designated at the address 200D
 There is an error in the switch setting by
the GX Developer
Signal
Corrective action
name

1
 Identify the incorrectly edited protocol in
Protocol setting data error information
(buffer memory: 4086
correct the setting data, and write them
again to the Q series C24N.
 Check the version of the Q series C24N
CHn to confirm the supported functions. Use
the pre-defined protocol function within
ERR.
the range of supported functions.
 Write the protocol setting data again to
the Q series C24N, and execute the
CPRTCL instruction.
 If this error persists even after rewriting,
replace the module.

1
 Check the remote password and

communicate again.
 A remote password processing
command is not necessary when a
remote password is not registered.
 Perform a remote password unlock
CHn
processing through GX Developer.
ERR.
Alternatively, change the
communication protocol setting of the
corresponding CH to the MC protocol.
 Clear the storage area of the
CHn accumulated count of unlock process
abnormal completion processing
ERR.
.
H
(address: 22FC
 Write CPU to the parameter and reboot
CHn
after correcting the setting value for the
ERR.
switch.
MELSEC-Q
MC Proce-
to 4089 ),
H H
) to 0.
H
Protocol
Non
Bidire- Pre-
ctional defined
dure
11 - 28