Mitsubishi Electric RD78G4 User Manual page 73

Error Error definition and causes
code
300CH A propagation delay send cycle parameter
error was detected.
300DH The Sync frame send cycle parameter
error was detected.
300FH Multiple master stations were detected in
the network.
3010H The value set in "Communication Period
Interval Setting" in "Communication Period
Setting" under "Basic Settings" of the
master station is smaller than the
communication cycle interval calculated by
the number of stations and points of slave
stations that was set in "Network
Configuration Settings" under "Basic
Settings".
3011H The value set in "Cyclic transmission time"
in "Communication Period Setting" under
"Basic Settings" of the master station is
smaller than the cyclic transmission time
calculated by the number of stations and
points of slave stations set in "Network
Configuration Settings" under "Basic
Settings".
3013H The value set in "Transient Transmission
Time" in "Communication Period Setting"
under "Basic Settings" of the master
station is smaller than the transient
transmission time calculated using the
number of slave stations and the points of
slave stations set in "Network
Configuration Settings" under "Basic
Settings".
3021H At startup of data link, IP address
duplication among slave stations has been
detected.
3060H The send/receive data size exceeds the
allowable range.
3121H The cyclic transmission setting information
received from the master station exceeds
the setting range.
3130H Devices with time synchronization priority
of 0 to 15 have been connected.
3135H Over the number of stations that can be
connected.
3136H An illegal ring topology was detected.
3C00H A hardware failure has been detected.
to
3C02H
Action
• Check the propagation delay send cycle parameter setting value of the
device operating as the grandmaster. When the Motion module is
operating as the grandmaster, reset the CPU module, and run it again.
• If the same error occurs again even after taking the above measure, the
possible cause is a hardware failure of the module. Please consult your
local Mitsubishi representative.
• Check the Sync frame send cycle parameter setting value of the device
operating as the grandmaster. When the Motion module is operating as the
grandmaster, reset the CPU module, and run it again.
• If the same error occurs again even after taking the above measure, the
possible cause is a hardware failure of the module. Please consult your
local Mitsubishi representative.
• Connect only one master station on the same network.
• After taking the above action, power off and on or reset all stations where
the error was detected.
Set the value of "Communication Period Interval Setting" over the value in the
detailed information displayed by module diagnostics using "Communication
Period Setting" under "Basic Settings" of the master station.
Set the value of "Cyclic Transmission Time" over the value in the detailed
information displayed by module diagnostics using "Communication Period
Setting" under "Basic Settings" of the master station.
Set "Communication Period Interval Setting" and "Cyclic Transmission Time"
so that the value of "Transient Transmission Time" in "Communication Period
Setting" under "Basic Settings" of the master station is equal to or larger than
the value shown in SW0078.
Correct the IP addresses of the slave stations.
• Check and change the send data size of the Ethernet-equipped module or
the external device.
• If the same error code is displayed again, the possible cause is a hardware
failure of the error module or CPU module. Please consult your local
Mitsubishi representative.
Write the module parameter to the CPU module again. If the same error
occurs again even after taking the above, please consult your local Mitsubishi
representative.
Remove devices with time synchronization priority of 0 to 15, or change the
priority to between 16 and 255.
• Reduce the total number of stations to 31 stations (master station: 1, slave
station: 30) or less.
• Reduce the number of authentication class B devices to eight or less for
each port of the master station.
Set a line topology or star topology and reset all stations.
• Take measures to reduce noise.
• Reset the CPU module, and run it again. If the same error occurs again
even after taking the above, the possible cause is a hardware failure of the
module, base unit, or extension cable. Please consult your local Mitsubishi
representative.
Detailed
information
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
Parameter
information
• Parameter type
• I/O No.
• Parameter No.



Operation source
information
• IP address

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3 TROUBLESHOOTING
3.5 List of Error Codes
3
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