Mitsubishi Electric MELSEC iQ-R Series User Manual page 271

Error code Error name
1A73H Write protect error
1A74H Block error
1A75H to 1A7AH Access target CPU
communication error
1A7BH Size error
1A7CH CPU error
1A7DH Device type error
1A7EH Device number error
1A7FH to 1A81H Access target CPU
communication error
1A82H Response timeout error
1A83H to 1AC4H Access target CPU
communication error
1AC5H Processing code error
1AC6H Station No. specification error
1AC7H Receive data error
Error description
The block number of the specified extension file
register has been allocated to the write-protect
area of the memory cassette.
The block number of the specified extension file
register is invalid.
Failed to communicate with access target CPU.
The device size exceeded the device range.
An invalid station was specified.
The device type specified for the access target
station is invalid.
The device number specified for the access target
station is out of range.
Failed to communicate with access target CPU.
No response has been received from the other
station.
Failed to communicate with access target CPU.
The issued processing code cannot be processed
on the other end.
The specified station number is incorrect.
Data has not been received.
Corrective action
• Check the block number of the extension file
register (device type).
• Check the write-protect DIP switch on the
memory cassette of the access target CPU.
• Check the block number of the extension file
register (device type).
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• Adjust the response monitoring time setting.
• Check if the control CPU of the network module
on the network route to the access target CPU
is set to QCPU (Q mode).
• Check the routing parameter settings of the
CPU(s) on the access route.
• Check the network on the access route.
• Correct the set device number.
• Check the settings of the network module on
the access route.
• Review the station number setting in the access
target CPU setting.
• Correct the set device type.
• Check series of the access target CPU setting.
• Correct the set device number.
• Check series of the access target CPU setting.
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• Adjust the response monitoring time setting.
• Check if the control CPU of the network module
on the network route to the access target CPU
is set to QCPU (Q mode).
• Check the routing parameter settings of the
CPU(s) on the access route.
• Check the network on the access route.
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• Adjust the response monitoring time setting.
• Check the control CPU(s) of the network
module(s) on the access route to the Access
target device module.
• Check the routing parameter settings of the
CPU(s) on the access route.
• Check the network on the access route.
• Adjust the service processing setting of the
access target CPU.
• When the load of the network is high, adjust the
system and lessen the processing load.
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• Adjust the response monitoring time setting.
• Check if the control CPU of the network module
on the network route to the access target CPU
is set to QCPU (Q mode).
• Check the routing parameter settings of the
CPU(s) on the access route.
• Check the network on the access route.
• Check the CPU(s) on the access route.
• Correct the station number setting in "Access
target CPU setting".
• Check the CPU(s) on the access route.
4 TROUBLESHOOTING
4.4 Error Code List
4
269