Mitsubishi Electric MELSEC iQ-R Series User Manual page 255

Error Error name
code
4A01H Network related error
4A02H Network related error
4A03H Network related error
4B00H Target module related
error
4B02H Target module related
error
4B03H Target module related
error
4B04H Target module related
error
C709H Target module related
error
Error details and cause
• The network with the number set to the routing
parameters does not exist.
• The specified CPU module cannot be communicated
via the network that is not supported by the specified
CPU module.
• The specified station cannot be accessed.
• A request for network test was issued.
• An error occurred on the access destination or the
relay station.
• The connection destination specification (the I/O
number of the requested module) is invalid.
• The request is not the one addressed to the CPU
module.
• The specified route is not supported by the version of
the specified CPU module.
• The communication target CPU module is not
mounted.
• The connection destination specification (I/O number
of the requested module) is not supported.
A communication error occurred with MELSOFT direct
connection.
Corrective action
• Check the routing parameters set to the related
stations, and correct them.
• Perform data communication using the communication
route supported by the specified CPU module.
• Check whether any error occurred on the network
module, or it is offline.
• Check whether the settings for the network number
and station number are correct.
• Check the request data of SLMP/MC protocol.
• Check the error occurred on the specified access
destination or relay station to the station to be
accessed, and take the corrective actions.
• Check the connection destination specification
(Request destination module I/O No. or PC No.) for the
request data of SLMP/MC protocol.
• Check the stop error, and take the corrective actions.
• Perform the operation to the module that can perform
the specified function.
• Check whether the specified route is supported.
• Check the mounting status of the CPU module.
• Check the stop error, and take the corrective actions.
• Invalid value has been set to the start I/O number for
the module in "Target settings." Change the start I/O
number to the one for the target module, and perform
data communication again.
• Specify a direct connection only when MELSOFT is
connected directly.
• Do not turn the power of the CPU module OFF, reset
the CPU module or bus, or disconnect the cable during
communication by direct connection.
33 ERROR CODE LIST
33.2 Other Error Codes
33
253