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MELSEC-QnA
13 TROUBLESHOOTING
Table 13.1 Error code list (2/6)
Detectability Error code
(hexadecimal)
Error details Cause of error occurrence (details) Corrective action
Master station Local station
The station types of the module are
different from parameter settings.
Example)
B30A
Loading/parameter
compatibility error
Connected
module
Remote
device
Intelligent
device
Parameter
setting
Remote I/O
Remote
device
Remote I/O
Set the correct parameters
.
B30B 1
Loading/parameter
compatibility error
The contents of the installation status
and network parameters do not match.
Set the contents of the
installation status and network
parameters to match.
B30C 1
Standby master station
specification error
Master station switching was instructed
to a station other than the standby
master station.
Specify the station number that
corresponds to the standby
master station.
B30D 1 Initial status
Temporary error invalid station
specification. Line test request, or data
link stop/restart request, etc. was issued
before starting the link.
Issue the requests after the
data link is started.
B30E Unsupported error
In the function started by SB/SW, an
attempt was made to execute the
function, which is supported by only the
master station, at the local station.
Execute the corresponding
function from the master
station.
B381
Station number switch setting
error
The station number switch was outside of
the setting range.
Set the station number switch
within the setting range.
B383
Transmission speed setting
switch setting error
The transmission speed setting switch is
set outside the range.
Set the transmission speed
setting switch to within the
setting range.
B384
Station number setting error
(parameter)
The station number (including the
number of occupied stations) of the
station information parameters (address
20
H to 5FH) was set to "other than 1 H to
40
H."
Set within the range of "1
H to
40
H".
B385
Total number of stations error
(parameter)
The total number of occupied stations set
with the station information parameter
(address 20
H to 5FH) exceeded 64.
Set a parameter value of 64 or
less.
B386
Number of occupied stations
setting error (parameter)
The number of all occupied stations in
the station information parameter
(address 20
H to 5FH) was set to "0".
Set the occupied station
number to a value between "1
and 4".
B387
Delay time setting error
(parameter)
The delay time setting in the master
station network parameters is out of the
setting range.
Set a value within the setting
range.
B388
Station type setting error
(parameter)
The station type in the station information
parameter (address 20H to 5FH) was set
to "other than 0 to 2".
Set to a value between "0 and
2".
B38B
Remote device station setting
error (parameter)
The number of remote device stations
was set to "43 stations or more" with the
station information parameter (address
20
H to 5FH).
Set the remote device station to
"42 stations or less" with the
station information parameter.
B38C
Intelligent device station setting
error (parameter)
The number of intelligent device stations
(including local stations) was set to "27
stations or more" with the station
information parameter (address 20
H to
5F
H).
Set the intelligent device station
to "26 stations or less" with the
station information parameter.
B38E 1
Communication buffer
assignment error (parameter)
The total size of the communication
buffers in the station information
parameter (address 20
H to 5FH)
exceeded 4 k words.
Set the total size of the
communication buffers to 4 k
words or less.
B38F 1
Automatic update buffer
assignment error (parameter)
The total size of the automatic update
buffer in the station information
parameter (address 20
H to 5FH)
exceeded 4 k words.
Set the total size of the
automatic update buffer to 4 k
words or less.
B390
Standby master station
specification error (parameter)
The standby master station parameter
(address 4
H) was set to a value other
than "1 to 64".
Specify the standby master
station to a value within the
range from "1 to 64".
1: Error code added to the function version B or later.