Mitsubishi Electric MELSEC-Q Series User Manual page 297

Error code
Description
(hexadecimal)
B305 System error
Specified station
B306
number setting error
Data link error in all
B307
stations
Station number setting
B308 error (installation
status)
Station number
B309
already in use error
Mismatch between the
connected module
B30A
status and parameter
setting
Mismatch between the
connected module
B30B
status and parameter
setting
Standby master station
B30C
specification error
B30D Initial status
Error cause (details)

A station number other than the
start station number has been
specified in the temporary error
invalid request or temporary error
invalid canceling request.
When one of the following
requests is issued, a data link
error has occurred in all stations.
• Data link restart (SB0000)
• Data link stop (SB0002)
A slave station number is outside
of 1 to 64.
The station number of the
connected module is already in
use (including the station
numbers of occupied stations
and excluding the start station
number).
The station type differs between
the mounted modules and
parameter settings.
Ex.
Connected Parameter
module setting
Remote
Remote I/O
device
Remote I/O
Intelligent
Remote
device
device
The mode setting is invalid in the
master station, local station, or
standby master station.
• The mode of the master station
differs from that of the standby
master station.
The network parameter setting
does not match with the
connected module status.
The master station switching was
instructed to a station other than
the standby master station.
A request, such as the temporary
error invalid station specification,
line test request, or data link
stop/restart request, was issued
before data link is started.
CHAPTER 11 TROUBLESHOOTING
Corrective action
Please consult your local
Mitsubishi representative.
Specify the start station number.
Make sure that the data link
returns to normal then issue the
request again.
Set the number within 1 to 64.
Check the station number of the
corresponding modules.
Correct the parameter.
Set the parameter of the master
station, local station, or standby
master station again, and reset
the CPU module.
Match them.
Set the standby master station
number.
Start the data link then issue the
request.
Delectability
Master Local
station station
×
×
11
×
×
×
×
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