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

5.6

List of Error Codes

This section lists the error codes, error details and causes, and actions for the errors that occur in the processing for data
exchange between the RJ71PN92 and IO devices or that 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 RJ71PN92. ( Page 124 Error Information)
The RJ71PN92 provides not only a method for checking error codes with the module diagnostics but a
method for checking the PROFINET communication error status with the buffer memory. For details on the
checking method with the buffer memory, refer to the following.
• Checking the PROFINET communication error status of the RJ71PN92 ( Page 151 Module error
details)
• Checking the PROFINET communication error status of IO devices ( Page 152 IO device error details)
Error Error details and causes
code
1801H The number of writes to the FlashROM (data memory,
program memory, and system memory) exceeded
100000 times.
(Number of writes > 100000)
24C0H An error was detected on the system bus.
24C1H An error was detected on the system bus.
24C3H An error was detected on the system bus.
24C4H An error was detected on the system bus.
24C5H An error was detected on the system bus.
24C6H An error was detected on the system bus.
Action
Replace the RJ71PN92.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module, RJ71PN92,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module, RJ71PN92,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module, RJ71PN92,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the RJ71PN92, base unit, or
extension cable. Please consult your local
Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the RJ71PN92, base unit, or
extension cable. Please consult your local
Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module or extension
cable. Please consult your local Mitsubishi
representative.
Detailed Information

System configuration
information
• I/O No.
• Base No.
• Slot No.
• CPU No.
System configuration
information
• I/O No.
• Base No.
• Slot No.
• CPU No.
System configuration
information
• I/O No.
• Base No.
• Slot No.
• CPU No.
System configuration
information
• I/O No.
• Base No.
• Slot No.


5 TROUBLESHOOTING
135
5.6 List of Error Codes
5