Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 295

■Action for abnormal end
If the communication status test fails, "No Response" or an error code is displayed in the "IP Address / Error Code" field in
"Result".
Displayed test Status of the
result external device
No Response No error
No error/Error exists
Error exists
Error code No error
No error/Error exists
■Precautions
• The communication status test cannot be executed when "MELSOFT Transmission Port (UDP/IP)" for the target Ethernet-
equipped module is locked with the remote password.
• When executing the communication status test, set "Gateway Other Than Default Gateway" under "Gateway Parameter
Settings" in "Application Settings" to "Not Use".
Cause
The initial process for the Ethernet-equipped module
has not been completed normally.
There is an error in the line connection to the
Ethernet-equipped module. (Cable disconnection,
line disconnection, or others)
The IP address of the Ethernet-equipped module is
incorrect. (The class or subnet address differs from
that of the Ethernet-equipped module.)
The same IP address has been set to multiple
Ethernet-equipped modules.
The same network number or station number has
been set to multiple Ethernet-equipped modules.
The Ethernet line is heavily loaded.
The routing settings are not configured.
The "MELSOFT Transmission Port (UDP/IP)" for the
Ethernet-equipped module is locked with the remote
password.
The target module does not support the
communication status test.
The Ethernet line is heavily loaded.
Action
Correct the module parameters.
• Check the cable.
• Check the hub and gateway.
Correct the module parameters.
Perform the test again when the Ethernet line is not
heavily loaded.
Correct the set value for "Routing Setting" of "CPU
Parameter".
Disable the remote password setting and write the
parameters to the CPU module.
Check the module name and function version.
Perform the test again when the Ethernet line is not
heavily loaded.
3 TROUBLESHOOTING
3.3 Checking the Network Status
3
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