Mitsubishi MELSEC Q Series User Manual page 402

13 TROUBLESHOOTING
Error code
Error details
(hexadecimal)
Station number setting error
B384
(parameter)
Total number of stations error
B385
(parameter)
Number of occupied stations
B386
setting error (parameter)
B387 Use prohibited area write error
Station type setting error
B388
(parameter)
B389 Use prohibited area write error
Remote device station setting
B38B
error (parameter)
Intelligent device station setting
B38C
error (parameter)
Invalid station specified error
B38D
(parameter)
Communication buffer
B38E
assignment error
Automatic update buffer
B38F
assignment error
Standby master station
B390
specification error (parameter)
Retry count setting error
B391
(parameter)
Operation when CPU is down
B392
specified error (parameter)
Scan mode specification error
B393
(parameter)
Number of automatic return
B394 stations setting error
(parameter)
Station number overlap error
B396
(parameter)
Station information setting error
B397
(parameter)
Number of occupied stations
B398
setting error (parameter)
Number of connected modules
B399
setting error (parameter)
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Table 13.1 Error code list (3/6)
Cause of error occurrence (details)
The station number (including the
number of occupied stations) of the
station information parameters was set to
"other than 1 to 40 ."
H H
The total number of occupied stations set
with the station information parameter
exceeded 64.
The number of all occupied stations in
the station information parameter was set
to "0".
Write operation was performed to a use
prohibited area (not used) in the buffer
memory.
The station type in the station information
parameter was set to "other than 0 to 2".
Write operation was performed to a use
prohibited area (not used) in the buffer
memory.
The number of remote device stations
was set to "43 stations or more" with the
station information parameter.
The number of intelligent device stations
(including local stations) was set to "27
stations or more" with the station
information parameter.
"Other than module head station
number" or "station number not specified
in the parameter" was set with the invalid
station specification parameter.
<Example of other than head station
number>
A bit other than that for station number 5
was ON for a module occupies 4 stations
(station numbers 5 to 8).
The total size of the communication
buffers in the station information
parameter exceeded 4 k words.
The total size of the automatic update
buffer in the station information
parameter exceeded 4 k words.
The standby master station parameter
was set to a value other than "1 to 64".
The retry count parameter was set to a
value other than "1 to 7".
The operation when the CPU is down
specification parameter was set to a
value other than "0 or 1".
The scan mode parameter was set to a
value other than "0 or 1".
The number of automatic return stations
parameter was set to a value other than
"1 to 10".
A duplicate station number was specified
with the station information parameter.
The station information parameter setting
does not meet the following condition:
C) < 2304
(16 4) + (54 B) + (88
A: Number of remote I/O stations
B: Number of remote device stations
C: Number of intelligent device stations
(including local stations)
The number of occupied stations in the
station information parameter was set to
a value other than "1 to 4".
The number of connected modules
parameter was set to a value other than
"1 to 64".
Corrective action
Set within the range of "1 to
H
40 ".
H
Set a parameter value of 64 or
less.
Set the occupied station
number to a value between "1
and 4".
Do not write to any of the use
prohibited areas (not used) in
the buffer memory.
Set to a value between "0 and
2".
Do not write to any of the use
prohibited areas (not used) in
the buffer memory.
Set the remote device station to
"42 stations or less" with the
station information parameter.
Set the intelligent device station
to "26 stations or less" with the
station information parameter.
Set the "Head station number of
the module".
Do not specify any of the
stations not specified with the
parameter.
Set the total size of the
communication buffers to 4 k
words or less.
Set the total size of the
automatic update buffer to 4 k
words or less.
Specify the standby master
station to a value within the
range from "1 to 64".
Set a value within the range
from "1 to 7".
Set "0 or 1".
Set "0 or 1".
Set a value within the range
from "1 to 10".
Set so that station numbers are
not duplicated.
Set the parameter so that it
meets the condition shown on
left.
Set a value within the range
from "1 to 4".
Set a value within the range
from "1 to 64".
MELSEC-Q
Detectability
Master station Local station
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