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

5.5

List of Error Codes

This section lists the error codes, error definitions and causes, and actions for the errors that occur in processing for data
communication between the RJ71CN91 and other nodes or caused by processing requests from the CPU module on the own
node.
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 RJ71CN91. ( Page 136 Error Information)
Error Error definition and cause
code
1080H The number of writes to the flash ROM has exceeded
100000.
1800H A high load on the bus/communication failure caused
the send buffer or receive buffer to overflow.
1801H The data length of the received PDO is invalid.
1802H An invalid CANopen object was received.
1803H A Layer 2 message slot specific error occurred.
1804H The module is in bus off state due to a massive
amount of transmission errors.
1805H A configuration save/factory default configuration
restore request was executed when the RJ71CN91
was in the Layer 2 online mode state.
1806H An error occurred during NMT slave start-up.
1807H An error occurred during NMT start-up.
Action
Replace the RJ71CN91.
Check if communication with other nodes is possible.
Check the following items if communication is
possible.
• Is the communication frequency high for SDO or
PDO communication?
• Is the communication frequency high for node
guarding or heartbeat communication?
Check the following items if communication is not
possible.
• Are terminating resistors connected to the both
ends of the network?
• Do all nodes have the same baud rate setting?
• Is any communication cable disconnected?
• Are communication cables grounded properly?
• Is any communication cable short-circuited?
• Are other nodes running normally?
Check the mapping parameter on the PDO sending/
receiving side.
Check the setting of nodes connected to the network.
Check the message slot specific error code.
Restart the RJ71CN91. If the same error is displayed
again, check the following.
• Are terminating resistors connected to the both
ends of the network?
• Do all nodes have the same baud rate setting?
• Is any node ID duplicated?
• Is any CAN-ID duplicated?
• Is any communication cable disconnected?
• Are communication cables grounded properly?
• Is any communication cable short-circuited?
• Are other nodes running normally?
Bring the RJ71CN91 into the offline mode state, and
then save/restore the settings.
Check the following.
• Is a correct node ID assigned to the NMT slave?
• Is the identification information of the NMT slave set
in the NMT master correct?
• Do values to be set satisfy the NMT slave
specifications?
• Is any communication cable disconnected?
• Are other nodes running normally?
• Do the settings for node guarding or heartbeat
correspond to the settings on the slave side?
• When using heartbeat, is the value for the
consumer heart beat time sufficiently larger than the
value for the producer heartbeat time?
• When using node guarding, is the value for the node
life time sufficiently larger than the value for the
guard time?
Check the following.
• NMT slave state
• Is the boot time setting value sufficient?
Detailed information


PDO number
PDO error cause
COB-ID
CANopen error cause
Message slot number


Node ID
NMT slave start-up error
cause
NMT start-up error cause
5 TROUBLESHOOTING
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5.5 List of Error Codes
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