Mitsubishi Electric MELSEC Q Series Reference Manual page 526

Error code Error
Transient execution error (no
E504
baton passing on the own
H
station)
Transient execution error with
E505
own station number
H
duplicated
E506
H
Network module error
E507
H
Duplication of station No. and
E508
control station setting of the
H
own station
Own station No. duplication
E509
H
error
Duplication of the own
E50A
station's control station
H
setting
E50B
Network No. error
H
IP packet transfer function not
E50C
supported (IP communication
H
test)
524
Error detail
Transient transmission was
executed while the own
station did not perform baton
(or token) passing.
Transient transmission was
executed with the own station
number duplicated.
The hardware has failed.
Station No. and control
station setting of the own
station are duplicated.
Station No. of the own station
is duplicated.
The control station setting for
the own station is duplicated.
The network No. of the (sub-)
control station is different
from the network No. of the
own station.
The module in the station on
the route after the route
where an error has been
detected does not support the
IP packet transfer function.
Corrective action
• Execute the dedicated instruction, interlocking with
Baton pass status (own station) (SB0047) and Baton
pass status of each station (SW00A0 to SW00A7).
• Check the Cause of baton pass interruption (SW0048)
at the own station and restart baton (or token) passing
before executing the transient transmission.
• If the error persists even after taking the above action,
please consult your local Mitsubishi representative.
• Remove the duplication of the own station numbers
before executing the transient transmission.
• Please consult your local Mitsubishi representative.
• Change the station No. of the own or other station and
the control station setting.
• After taking the above action, reset the error station.
• After turning on the own station, turn on the other
stations to identify the station that has a duplicate
station No. and/or control station setting.
• When the redundant system is in debug mode, connect
only one of the two systems to the network. To connect
both systems to the network, set the operation mode of
the redundant system to backup or separate mode.
• Change the station No. of the own or other station.
• After taking the above action, reset the error station.
• After turning on the own station, turn on the other
stations to identify the station that has a duplicate
station No. setting.
• When the redundant system is in debug mode, connect
only one of the two systems to the network. To connect
both systems to the network, set the operation mode of
the redundant system to backup or separate mode.
• Change the control station setting of the own or other
station.
• After taking the above action, reset the error station.
• After turning on the own station, turn on the other
stations to identify the station that has a duplicate
control station setting.
• Set the same network No. to the own station and the
(sub-) control station.
• Check the first five digits of the serial number of the
module in the station on the route after the route where
an error has been detected, and check whether the
module in the station supports the function. If the
function is not supported, replace the module with the
one with the latest version.