Mitsubishi Electric MELSEC iQ-R Series User Manual page 270

Error code Error name
1A56H to 1A59H Access target CPU
communication error
1A5AH Access target CPU connection
error
1A5BH to 1A5EH Access target CPU
communication error
1A5FH Incorrect access target error
1A60H Communication timeout error
1A61H to 1A6FH Access target CPU
communication error
1A70H Station number or network
number error
1A71H Access target CPU
communication error
1A72H Memory cassette error
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4.4 Error Code List
Error description
Failed to communicate with access target CPU.
Incorrect IP address is specified in access target
CPU. Or failed to communicate with access target
CPU.
Failed to communicate with access target CPU.
The setting for the access target CPU is incorrect.
The communication did not established because
the access to the other access target CPU failed.
Failed to communicate with access target CPU.
The station or network number is out of range or
the setting is wrong.
Failed to communicate with access target CPU.
No memory cassette is installed in the accessed
CPU module.
Or an incorrect memory cassette has been
installed.
Corrective action
• 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 Description (IP address) of access
target CPU setting.
• Check the configuration of the access target
CPU.
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• Check the network settings.
• 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.
• 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".
• Correct "Access target CPU setting".
• Check the communication cable status and
access target CPU status.
• 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 station and network number in
"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.
• Check the memory cassette of the access
target CPU.