List Of Error Codes - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.5

List of Error Codes

This section lists the error codes, error details and causes, and action for the errors occur in the processing for data
communication between the RJ71LP21-25 and external devices or caused by processing requests from the CPU module on
the own station.
Error codes are classified into major error, moderate error, and minor error, and can be checked in the [Error Information] tab
of the "Module Diagnostics" window of the RJ71LP21-25. ( Page 92 Checking the Module Status)
Error code Error details and causes
1811H An error was detected in the CPU
module.
1812H The module is installed in a CPU
module that does not support the
MELSEC iQ-R MELSECNET/H
network module.
1830H Number of reception requests of
transient transmission (link dedicated
instruction) exceeded upper limit of
simultaneously processable requests.
1845H Too many processings of transient
transmission (link dedicated
instruction) and cannot perform
transient transmission.
1860H Baton pass stops with an error of
communication line or MELSECNET/H
network module.
20E0H The module cannot communicate with
the CPU module.
2220H The parameter setting is corrupted.
2221H • The set value is out of the range.
• The network type of the own station
is inconsistent with that of the control
station.
24C0H to 24C3H An error was detected on the system
bus.
24C6H An error was detected on the system
bus.
3001H • A station with the same station
number was found in the same
network.
• Multiple control stations were
detected in the same network.
Action
Check the error of the CPU module and take action using the module
diagnostics of the engineering tool.
Check the version of the CPU module and use a product supporting the
MELSEC iQ-R MELSECNET/H network module.
Lower the transient transmission usage frequency, and then retry the
operation.
Correct the transient transmission execution count.
• Check the network status using the MELSECNET diagnostics of the
engineering tool.
• If the error occurs again even after taking the above, please consult your
local Mitsubishi representative.
The hardware failure of the CPU module may have been occurred. Please
consult your local Mitsubishi representative.
Check the detailed information of the error by executing module
diagnostics using the engineering tool, and write the displayed parameter.
If the error occurs again even after taking the above, the possible cause is
a hardware failure of the module. Please consult your local Mitsubishi
representative.
• Check the detailed information of the error by executing module
diagnostics using the engineering tool, and correct the parameter
setting corresponding to the displayed number.
• Change the network type of the normal station to the one set for the
control station.
• Take measures to reduce noise.
• After the CPU module is reset, switch to RUN. If the 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.
• Take measures to reduce noise.
• After the CPU module is reset, switch to RUN. If the 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.
Correct the station number or station type of the station where the error
was detected.
After taking the above actions, power off and on or reset all stations where
the error was detected.
Detailed
Information






Parameter
information
• Parameter type
Parameter
information
• Parameter type
• I/O No.
• Parameter No.
• Network No.
• Station No.
System
configuration
information
• I/O No.
• Base No.
• Slot No.
• CPU No.

■Parameter
information
• Parameter type
• I/O No.
• Parameter No.
■Duplication type
information
• 0: Station
duplication
• 1: Master station
duplication
4 TROUBLESHOOTING
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4.5 List of Error Codes
4