Mitsubishi MELSEC-Q Series User Manual page 254

13 TROUBLESHOOTING
Error code
Error details
(hexadecimal)
B415 Execution station type error
B601 Request type error
Transient request overload
B602
error
Transient request overload
B603
error
B604 Line test in processing
Transient storage buffer could
B605
not be obtained
B607 Target station CPU error
Transient request overload
B771
error
B774 Transient request error
B778 Response time out
B780 Module mode setting error
Station number specification
B782
error
B783 Transient storage buffer error
B801 Instruction type setting error
B802 Access code error
B803 Data points error
Attribute definition error
Transient transmission
B804
unsupported station
specification error
B805 Data points error
B807 Address definition error
B80D Setting range error
File register capacity setting
B814
error
B815 Module mode setting error
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Table 13.1 Error code list (4/5)
Cause of error occurrence (details)
The RLPASET instruction was executed
on a station other than the master
station.
An unsupported request was received.
There are too many transient requests to
the corresponding station.
There are too many transient requests to
the corresponding station.
Transient transmission was sent when a
line test was in progress.
Transient storage buffer could not be
obtained.
There is an error in the target station's
CPU.
There are too many transient requests to
the corresponding station.
The target station was not an intelligent
device station.
A response was not received from the
requested station.
A transient transmission was executed
even though the target station was set to
the I/O mode.
The transmission destination and source
stations were the same when other
station connection was specified.
An error occurred in the transient storage
buffer when a transient transmission of
greater than 1 k was being performed.
A instruction type that does not exist was
set.
An access code that does not exist was
used.
The number of data points were out of
range.
The attribute definition was invalid.
Alternatively, transient transmission was
performed even though the target station
does not support transient transmission.
The number of data was out of range.
The address was not a multiple of 16
when the bit device was accessed.
The specified combination (addresses
and points) exceeded the valid
processing range.
The file register capacity was not
specified.
A transient transmission was executed
when the target station was set to the I/O
mode.
Corrective action
Check that the self-station type
has been set to the master
station.
Check the contents of the
request, as well as the target
station number.
Wait a while and then send the
requests (transient overload
status).
Wait a while and then send the
requests (transient overload
status).
Wait a while and then
retransmit.
Wait a while and then
retransmit.
Check the target CPU.
Wait a while and then
retransmit (transient overloaded
status).
Check if the target station is an
intelligent device station.
Check the requested module
and cables.
Set to the remote net mode.
Check the transmission
destination station number, or
change to host connection.
Wait a while and then
retransmit.
Set the correct instruction type.
Use the correct access code.
Set the number of data points
to within 1 to 960 bytes.
Review the attribute definition.
Check the designation of the
target station number, as well
as the function version and
software version of the target
local station.
Set the range to within 1 to 100
when writing, and 1 to 160
when reading.
Set the address to a multiple of
16 when accessing the bit
device.
Set so that the number of
processing points does not
exceed the device range .
Specify the file register
capacity.
Set to the remote net mode.
MELSEC-Q
Detectability
Master station Local station
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