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Error Codes Related To Safety Communication - Mitsubishi Electric MELSEC iQ-R Series User Manual

Cc-link ie field network waterproof/dustproof remote i/o module (with safety functions).
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Error codes related to safety communication

The following table lists safety communication error codes.
The ERR. LED does not turn on when a communication error related to the safety communication occurs, the same as a case
when a communication error of CC-Link IE Field Network occurs. When an error occurs, the SAFETY LED turns off and the D
LINK LED does not change.
Error code
Classification Error name
(hexadecimal)
8400H
Communication
error
8401H
Communication
error
8402H
Communication
error
8403H
Communication
error
8404H
Communication
error
10 TROUBLESHOOTING
10.7 Error Code List
Description and cause
Safety
An error was detected in the
communication
safety communication with the
error
master station.
Safety
A communication interrupt has
communication
occurred on CC-Link IE Field
disabled due to a
Network and the safety
communication
communication is stopped.
interrupt
Safety
Response monitoring timeout
communication
was detected while the safety
connection being
connection was being
established
established in the safety
communication with the
Response
monitoring
master station.
timeout
Safety
Response monitoring timeout
communication
was detected while the safety
being refreshed
communication was being
Response
refreshed in the safety
monitoring
communication with the
timeout
master station.
Safety
Response monitoring timeout
communication
was detected while a safety
error in
communication error was
processing
being processed in the safety
Response
communication with the
monitoring
master station.
timeout
Action
• Refer to the following and set module parameters and perform
the safety module validation according to the parameter setting
procedure.
Page 67 Module parameter setting procedure
• When the parameter setting has no errors, there may be an
influence from noise or a hardware failure. If the same error
occurs again even after measures have been taken against
noise, the module may be in failure. Please consult your local
Mitsubishi representative.
• Check the network status using the CC-Link IE Field Network
diagnostics of the engineering tool for errors.
• When no error has occurred on the network, there may be an
influence from noise or a hardware failure. If the same error
occurs again even after measures have been taken against
noise, the module may be in failure. Please consult your local
Mitsubishi representative.
• Correct "Transmission interval monitoring time" of the module
parameter as well as "Safety Communication Setting" of the
master station. After that, refer to the following and set module
parameters and perform the safety module validation according
to the parameter setting procedure.
Page 67 Module parameter setting procedure
• When the parameter setting has no errors, there may be an
influence from noise or a hardware failure. If the same error
occurs again even after measures have been taken against
noise, the module may be in failure. Please consult your local
Mitsubishi representative.
• Correct "Transmission interval monitoring time" of the module
parameter as well as "Safety Communication Setting" of the
master station. After that, refer to the following and set module
parameters and perform the safety module validation according
to the parameter setting procedure.
Page 67 Module parameter setting procedure
• When the parameter setting has no errors, there may be an
influence from noise or a hardware failure. If the same error
occurs again even after measures have been taken against
noise, the module may be in failure. Please consult your local
Mitsubishi representative.
• Correct "Transmission interval monitoring time" of the module
parameter as well as "Safety Communication Setting" of the
master station. After that, refer to the following and set module
parameters and perform the safety module validation according
to the parameter setting procedure.
Page 67 Module parameter setting procedure
• When the parameter setting has no errors, there may be an
influence from noise or a hardware failure. If the same error
occurs again even after measures have been taken against
noise, the module may be in failure. Please consult your local
Mitsubishi representative.

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