Mitsubishi Electric MELSEC iQ-R Series User Manual page 139

Error code Error details and causes
FD1CH The setting check test, station order
check test, and loop test are executed
during line control.
FD1DH An error was detected in the test data.
*1
FD1EH The test cannot be executed by the bus
type.
*1
FD20H The mode is incorrectly set.
FD21H to The cable was disconnected during the
*1
FD22H execution of the online test.
*1
FD23H An error caused by data comparison
has occurred during the execution of
the station-to-station test.
FD24H A communication error has occurred
during the station-to-station test and
self-loopback test.
*1
FD25H The hardware of the network module
has failed.
FD26H to The cable is faulty.
*1
FD27H
FD28H to An error was detected in the network
*1
FD2BH module.
*1
FD31H Offline diagnostics is executed during
the execution of online diagnostics.
FD32H to An error was detected in the network
*1
FD33H module.
*1
FD35H Response wait timeout has occurred
during the communication test.
FD36H Response wait timeout has occurred
during the communication test.
*1
FD37H Communication test is executed for the
station in which online test is being
executed.
FD38H The duplicated request packet is
received during the communication
test.
FD39H Communication test is executed for the
own station.
FD3AH Communication test is executed for the
relay sending station and the station
which is mounted on the same base
unit (main base unit and extension
base unit).
FD40H A send size error has occurred during
the execution of the station-to-station
test and self-loopback test.
FD41H An under-error has occurred during the
execution of the station-to-station test
and self-loopback test.
FD42H A line error has occurred during the
execution of the station-to-station test
and self-loopback test.
Action
• Do not switch the loop in the middle.
• If the error occurs again, check the line and wiring status.
• Check for cable failure, hardware failure, wiring error, station number
duplication, control station duplication, and mismatched transmission
speed in the module in the same network.
• If the error occurs again, please consult your local Mitsubishi
representative.
Perform the test that can be executed by the bus type.
• 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.
Restore the cable and execute the online test.
Check for cable failure, hardware failure, wiring error, station number
duplication, control station duplication, and mismatched transmission
speed in the same network.
Check for cable failure, hardware failure, wiring error, station number
duplication, control station duplication, and mismatched transmission
speed in the same network.
Please consult your local Mitsubishi representative.
Connect a correct cable and execute the online test.
Please consult your local Mitsubishi representative.
Retry the operation after the completion of one online diagnostics.
Please consult your local Mitsubishi representative.
• Retry the operation later.
• Check the target station and line status.
• Retry the operation later.
• Check the target station and line status.
• If the dynamic routing setting is not enabled, check if "Routing Setting"
in "CPU Parameter" is correctly set.
• Retry the operation later.
• Check the target station and line status.
• Retry the operation later.
• Check the target station and line status.
Change the request destination.
Change the request destination.
No action is required because the system performs a retry.
However, if the error occurs frequently, check for cable failure, hardware
failure, noise, and wiring error.
No action is required because the system performs a retry.
However, if the error occurs frequently, check for cable failure, hardware
failure, noise, and wiring error.
No action is required because the system performs a retry.
However, if the error occurs frequently, check for cable failure, hardware
failure, noise, and wiring error.
Detailed
Information
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4 TROUBLESHOOTING
137
4.5 List of Error Codes
4