Mitsubishi Electric MELSEC iQ-R Series User Manual page 131

Error code Error details and causes
11DH An incorrect UDP port specification has been received from the
external device.
11EH Participation in a multicast group has failed.
11FH An error was detected in the memory.
120H The available resources are insufficient.
121H The connection has stopped.
126H An incorrect RegisterSession command has been received.
128H An incorrect request frame has been received.
129H An incorrect session handle has been received.
12AH Request data with an incorrect size has been received.
12BH Request data including an unsupported protocol version has
been received.
12DH Request data with an incorrect size has been received.
12EH Communications have been disconnected.
12FH The connections have been disconnected.
130H to 131H Forward Close has been received from the external device.
Action
• Check whether the external device is set to use UDP port
number 2222 for EtherNet/IP communications.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• The external device may not be able to send data at the
specified RPI due to a high communication load, so specify a
larger RPI and connect again.
• Take measures to reduce noise.
• Reset the CPU module, and then switch it to RUN mode. If the
error occurs again even after the above action is taken, the
possible cause is a hardware failure of the module on which the
error occurred. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module, and then switch it to RUN mode. If the
error occurs again even after the above action is taken, the
possible cause is a hardware failure of the module on which the
error occurred. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module, and then switch it to RUN mode. If the
error occurs again even after the above action is taken, the
possible cause is a hardware failure of the module on which the
error occurred. Please consult your local Mitsubishi
representative.
• The line may be busy, so retry at a later time.
• The external device may not be able to send data at the
specified RPI due to a high communication load, so specify a
larger RPI and connect again.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
Check whether 'EtherNet/IP communication start request' (Y10) is
on.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
• Check whether the operating status of the external device is
normal.
• Check for errors in the line status.
• The line may be busy, so retry at a later time.
5 TROUBLESHOOTING
5.6 List of Error Codes
5
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