Mitsubishi Electric MELSEC iQ-R Series User Manual page 137

Error code Error details and causes
F841H to The network parameter is faulty or the
*1
F842H hardware of the network module has
failed.
F843H
F881H to F888H An error was detected in the network
module.
F890H Number of transient request exceeded
the upper limit of simultaneously
processable requests.
F891H The request data size of memory read/
write command is out of range.
F892H • Routing information to the
destination network number is not
registered.
• In transient transmission, the number
of relay to other networks exceeded
seven.
F893H The module operation mode is set to a
mode in which transient transmission
cannot be executed.
F894H Incorrect frame is received.
• Unsupported pre-conversion protocol
• Unsupported frame type
• Application header variable part
• Application header HDS
• Application header RTP
• Read command not requiring
response
F901H Cable failure or network module error is
detected.
F902H In transient transmission, the number
of relay to other networks exceeded
seven.
F903H The target network number specified
for transient transmission is out of
range.
F904H The target station number specified for
transient transmission is out of range.
F905H Cable failure or network module error is
detected.
FA00H to An error was detected in the network
FA04H, FA10H module.
to FA18H
FAE0H to FAE1H An error was detected in the CPU
module or network module.
FAE2H An error was detected in the network
module.
FAE4H An error was detected in the network
module.
FAE5H An error was detected in the CPU
module or network module.
FAF0H to FAF7H An error was detected in the network
module.
Action
• Correct the network parameter setting and write data to the
programmable controller.
• If the error occurs again, the error is the hardware failure of the CPU
module or network module. Please consult your local Mitsubishi
representative.
Please consult your local Mitsubishi representative.
• Pause the transient transmission temporarily, and retry the operation.
• Lower the transient transmission usage frequency, and then retry the
operation.
Correct the read or write size specification at the transient request source,
and retry the operation.
• Correct the target network number at the request source, and retry the
operation.
• Correct the communication path from the transient request source to the
destination, and retry the operation.
• When the dynamic routing is not used, or the module of the series other
than MELSEC iQ-R is included, retry the operation after correcting the
routing setting.
• Change the system configuration so that the number of relay stations
may be seven or less.
After completion of the offline test, retry the transient transmission.
Correct the request data at the transient request source, and retry the
operation.
• If a communication error occurs, correct the communication cable.
• If no communication error has occurred, the error is caused by hardware
failure. Please consult your local Mitsubishi representative.
• Change the system configuration so that the number of relay stations
may be seven or less.
• Check if "Routing Setting" in "CPU Parameter" is correctly set.
• Correct the target network number at the own station, and retry the
operation.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
• Correct the target station number at the own station, and retry the
operation.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
• If a communication error occurs, correct the communication cable.
• If no communication error has occurred, the error is caused by hardware
failure. Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Please consult your local Mitsubishi representative.
Detailed
Information
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4 TROUBLESHOOTING
135
4.5 List of Error Codes
4