5 TROUBLESHOOTING
5.6 List of Error Codes
129
5
11DH An incorrect UDP port specification has been received from the
external device.
• 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.
11EH Participation in a multicast group has failed. • 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.
11FH An error was detected in the memory. • 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.
120H The available resources are insufficient. • 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.
121H The connection has stopped. • 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.
126H An incorrect RegisterSession command has been received. • 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.
128H An incorrect request frame has been received. • 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.
129H An incorrect session handle has been received. • 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.
12AH Request data with an incorrect size has been received. • 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.
12BH Request data including an unsupported protocol version has
been received.
• 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.
12DH Request data with an incorrect size has been received. • 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.
12EH Communications have been disconnected. Check whether 'EtherNet/IP communication start request' (Y10) is
on.
12FH The connections have been disconnected. • 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.
130H to 131H Forward Close has been received from the external device. • 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.
Error code Error details and causes Action
To Next Page
Loading...
